Пример #1
0
def simple_polygon_without_brush(layer, width='0.26', color=QColor('black')):
    """Simple style to apply a border line only to a polygon layer.

    :param layer: The layer to style.
    :type layer: QgsVectorLayer

    :param color: Color to use for the line. Default to black.
    :type color: QColor

    :param width: Width to use for the line. Default to '0.26'.
    :type width: str
    """
    registry = QgsSymbolLayerV2Registry.instance()
    line_metadata = registry.symbolLayerMetadata("SimpleLine")
    symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())

    # Line layer
    line_layer = line_metadata.createSymbolLayer({
        'width': width,
        'color': color.name(),
        'offset': '0',
        'penstyle': 'solid',
        'use_custom_dash': '0',
        'joinstyle': 'bevel',
        'capstyle': 'square'
    })

    # Replace the default layer with our custom line
    symbol.deleteSymbolLayer(0)
    symbol.appendSymbolLayer(line_layer)

    renderer = QgsSingleSymbolRendererV2(symbol)
    layer.setRendererV2(renderer)
 def style_curves(self):
     registry = QgsSymbolLayerV2Registry.instance()
     cross = registry.symbolLayerMetadata("SimpleMarker").createSymbolLayer(
         {
             'name': 'cross2',
             'color': '0,0,0',
             'color_border': '0,0,0',
             'offset': '0,0',
             'size': '1.5',
             'angle': '0'
         })
     symbol = QgsSymbolV2.defaultSymbol(self.layer.geometryType())
     symbol.deleteSymbolLayer(0)
     symbol.appendSymbolLayer(cross)
     self._set_symbol_size(symbol)
     renderer = QgsSingleSymbolRendererV2(symbol)
     effect = QgsOuterGlowEffect()
     effect.setSpread(0.5)
     effect.setTransparency(0)
     effect.setColor(QColor(255, 255, 255))
     effect.setBlurLevel(1)
     renderer.paintEffect().appendEffect(effect)
     renderer.paintEffect().setEnabled(True)
     self.layer.setRendererV2(renderer)
     self.layer.setLayerTransparency(30)  # percent
     self.layer.triggerRepaint()
     self.iface.legendInterface().refreshLayerSymbology(self.layer)
     self.iface.mapCanvas().refresh()
Пример #3
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def certificate_preprocess(plot, plots):
    """
    Utility function that loads and renders plots that belong to a specific
    scheme.
    """
    scheme_plot_layer = lht_plot_layer(plot.scheme_id, CERTIFICATE_PLOT)
    QgsMapLayerRegistry.instance().addMapLayer(scheme_plot_layer)
    # Get the EPSG code of the plot
    epsg_code = plot.cb_check_lht_plot_crs.value
    # Setting the project CRS variable
    QgsExpressionContextUtils.setProjectVariable('flts_source_crs', epsg_code)

    # Styling reference plot using primary key
    filter_exp = '"id" = ' + str(plot.id)
    scheme_symbol = QgsSymbolV2.defaultSymbol(scheme_plot_layer.geometryType())
    # Rule-based rendering
    rule_renderer = QgsRuleBasedRendererV2(scheme_symbol)
    root_rule = rule_renderer.rootRule()

    # Rule for highlighting reference plot
    scheme_rule = root_rule.children()[0].clone()
    scheme_rule.setLabel('Reference Plot')
    scheme_rule.setFilterExpression(filter_exp)
    scheme_symbol_layer = scheme_rule.symbol().symbolLayer(0)
    scheme_symbol_layer.setFillColor(Qt.yellow)
    scheme_symbol_layer.setOutlineColor(Qt.black)
    scheme_symbol_layer.setBorderWidth(0.5)
    root_rule.appendChild(scheme_rule)

    # Rule for other plots
    def_rule = root_rule.children()[0].clone()
    def_rule.setLabel('Plots')
    def_rule.setIsElse(True)
    def_symbol_layer = def_rule.symbol().symbolLayer(0)
    def_symbol_layer.setFillColor(Qt.transparent)
    def_symbol_layer.setOutlineColor(Qt.black)
    root_rule.appendChild(def_rule)

    # Remove default rule
    root_rule.removeChildAt(0)

    # Set renderer
    scheme_plot_layer.setRendererV2(rule_renderer)

    # Enable labeling
    scheme_plot_layer.setCustomProperty("labeling", "pal")
    scheme_plot_layer.setCustomProperty("labeling/enabled", "true")
    scheme_plot_layer.setCustomProperty("labeling/fontFamily", "Arial")
    scheme_plot_layer.setCustomProperty("labeling/fontSize", "5.5")
    scheme_plot_layer.setCustomProperty("labeling/fieldName", "plot_number")
    scheme_plot_layer.setCustomProperty("labeling/placement", "1")
    scheme_plot_layer.setCustomProperty("labeling/centroidInside", "true")
    scheme_plot_layer.setCustomProperty("labeling/centroidWhole", "false")

    scheme_plot_layer.triggerRepaint()

    iface.mapCanvas().setExtent(scheme_plot_layer.extent())
    QgsApplication.processEvents()

    return True
 def style_categorized(self, layer, style_by):
     # get unique values
     fni = layer.fieldNameIndex(style_by)
     unique_values = layer.dataProvider().uniqueValues(fni)
     # define categories
     categories = []
     for unique_value in unique_values:
         # initialize the default symbol for this geometry type
         symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
         # configure a symbol layer
         layer_style = {}
         layer_style['color'] = '%d, %d, %d' % (randrange(
             0, 256), randrange(0, 256), randrange(0, 256))
         layer_style['outline'] = '#000000'
         symbol_layer = QgsSimpleFillSymbolLayerV2.create(layer_style)
         # replace default symbol layer with the configured one
         if symbol_layer is not None:
             symbol.changeSymbolLayer(0, symbol_layer)
         # create renderer object
         category = QgsRendererCategoryV2(unique_value, symbol,
                                          str(unique_value))
         # entry for the list of category items
         categories.append(category)
     # create renderer object
     renderer = QgsCategorizedSymbolRendererV2(style_by, categories)
     # assign the created renderer to the layer
     if renderer is not None:
         layer.setRendererV2(renderer)
     layer.triggerRepaint()
     self.iface.legendInterface().refreshLayerSymbology(layer)
     self.iface.mapCanvas().refresh()
Пример #5
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    def update_syms(self, catalogue):
        self.syms = {}

        for flag in set(catalogue.data['Cluster_Flag'].tolist()):
            for index in set(catalogue.data['Cluster_Index'].tolist()):

                # main shock
                point = QgsMarkerSymbolV2.createSimple(
                    {'color': 'blue', 'name': 'square'})

                if index:  # belongs to a cluster
                    color = self.catalogue_model.cluster_color(index)

                    # non poissonian
                    if flag:
                        point = QgsMarkerSymbolV2.createSimple(
                            {'color': 'blue', 'name': 'triangle'})
                    color.setAlpha(125 + 125 * abs(flag))
                    point.setSize(3)
                    point.setColor(color)
                else:
                    point = QgsSymbolV2.defaultSymbol(QGis.Point)
                    point.setColor(QtGui.QColor("0,0,0,125"))
                    point.setSize(1.5)
                self.syms[self.Cluster(index, flag)] = point
Пример #6
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	def setCategorizedStyle(vl, categories, field, **kwargs):
		""" set a categorized style """
		# make a symbol for each category
		categoryV2List = []
		for label, value, attrs in categories:
			symbolV2 = QgsSymbolV2.defaultSymbol( vl.geometryType() )
			if 'color' in attrs:
				symbolV2.setColor( attrs['color'] )
			if 'size' in attrs:
				symbolV2.setSize( attrs['size'] )

			# in QGis > 1.8 QgsMarkerSymbolV2 has 2 scale methods: ScaleArea and ScaleDiameter
			if 'sizeScaleMethod' in kwargs and hasattr(symbolV2, 'setScaleMethod'):
				symbolV2.setScaleMethod( kwargs['sizeScaleMethod'] )

			categoryV2 = QgsRendererCategoryV2( value, symbolV2, label )
			categoryV2List.append( categoryV2 )

		# create the renderer
		renderer = QgsCategorizedSymbolRendererV2( field, categoryV2List )

		# set size scale field
		if 'sizeScaleField' in kwargs:
			renderer.setSizeScaleField( kwargs['sizeScaleField'] )

		# set the renderer for the layer
		vl.setRendererV2( renderer )
		Utils.iface.legendInterface().refreshLayerSymbology(vl)
Пример #7
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    def prepare_ordered_marker(self, coords, idx):
        """
        Try to display nice marker on a point layer, showing the order of
        the path computed by OSRM.
        """
        self.tsp_marker_lr = QgsVectorLayer(
            "Point?crs=epsg:4326&field=id:integer"
            "&field=TSP_nb:integer(20)&field=Origin_nb:integer(20)",
            "tsp_markers_osrm{}".format(self.nb_route), "memory")
        symbol = QgsSymbolV2.defaultSymbol(self.tsp_marker_lr.geometryType())
        symbol.setSize(4.5)
        symbol.setColor(QtGui.QColor("yellow"))

        ordered_pts = \
            [coords[i["waypoint_index"]] for i in self.parsed['waypoints']]
        print("ordered_pts : ", ordered_pts)

        features = []
        for nb, pt in enumerate(ordered_pts):
            ft = QgsFeature()
            ft.setGeometry(QgsGeometry.fromPoint(QgsPoint(pt)))
            ft.setAttributes([nb, nb + 1, coords.index(pt)])
            features.append(ft)
        self.tsp_marker_lr.dataProvider().addFeatures(features)

        pal_lyr = QgsPalLayerSettings()
        pal_lyr.readFromLayer(self.tsp_marker_lr)
        pal_lyr.enabled = True
        pal_lyr.fieldName = 'TSP_nb'
        pal_lyr.placement= QgsPalLayerSettings.OverPoint
        pal_lyr.setDataDefinedProperty(QgsPalLayerSettings.Size,True,True,'12','')
        pal_lyr.writeToLayer(self.tsp_marker_lr)

        self.tsp_marker_lr.setRendererV2(QgsSingleSymbolRendererV2(symbol))
        QgsMapLayerRegistry.instance().addMapLayer(self.tsp_marker_lr)
Пример #8
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def simple_polygon_without_brush(layer, width='0.26', color=QColor('black')):
    """Simple style to apply a border line only to a polygon layer.

    :param layer: The layer to style.
    :type layer: QgsVectorLayer

    :param color: Color to use for the line. Default to black.
    :type color: QColor

    :param width: Width to use for the line. Default to '0.26'.
    :type width: str
    """
    registry = QgsSymbolLayerV2Registry.instance()
    line_metadata = registry.symbolLayerMetadata("SimpleLine")
    symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())

    # Line layer
    line_layer = line_metadata.createSymbolLayer(
        {
            'width': width,
            'color': color.name(),
            'offset': '0',
            'penstyle': 'solid',
            'use_custom_dash': '0',
            'joinstyle': 'bevel',
            'capstyle': 'square'
        })

    # Replace the default layer with our custom line
    symbol.deleteSymbolLayer(0)
    symbol.appendSymbolLayer(line_layer)

    renderer = QgsSingleSymbolRendererV2(symbol)
    layer.setRendererV2(renderer)
Пример #9
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    def setCategorizedStyle(vl, categories, field, **kwargs):
        """ set a categorized style """
        # make a symbol for each category
        categoryV2List = []
        for label, value, attrs in categories:
            symbolV2 = QgsSymbolV2.defaultSymbol(vl.geometryType())
            if 'color' in attrs:
                symbolV2.setColor(attrs['color'])
            if 'size' in attrs:
                symbolV2.setSize(attrs['size'])

            # in QGis > 1.8 QgsMarkerSymbolV2 has 2 scale methods: ScaleArea and ScaleDiameter
            if 'sizeScaleMethod' in kwargs and hasattr(symbolV2,
                                                       'setScaleMethod'):
                symbolV2.setScaleMethod(kwargs['sizeScaleMethod'])

            categoryV2 = QgsRendererCategoryV2(value, symbolV2, label)
            categoryV2List.append(categoryV2)

        # create the renderer
        renderer = QgsCategorizedSymbolRendererV2(field, categoryV2List)

        # set size scale field
        if 'sizeScaleField' in kwargs:
            renderer.setSizeScaleField(kwargs['sizeScaleField'])

        # set the renderer for the layer
        vl.setRendererV2(renderer)
        Utils.iface.legendInterface().refreshLayerSymbology(vl)
Пример #10
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    def symbolize(self):
        # define ranges: label, lower value, upper value, color name
        temp_cat = (('0-10', 0.0, 10.0, '"#0024E3'), ('10-12', 10.0, 12.0,
                                                      '#0087CD'),
                    ('12-14', 12.0, 14.0,
                     '#16F45A'), ('14-16', 14.0, 16.0,
                                  '#73FF1A'), ('16-18', 16.0, 18.0, '#BDFF0C'),
                    ('18-20', 18.0, 20.0,
                     '#FFDD00'), ('20-22', 20.0, 22.0,
                                  '#FF9000'), ('22-24', 22.0, 24.0, '#FF4400'),
                    ('24-26', 24.0, 26.0,
                     '#FF1D00'), ('26-28', 26.0, 28.0,
                                  'F70000'), ('>28', 28.0, 40.0, '#AA0000'))

        # create a category for each item in Augmean
        ranges = []
        for label, lower, upper, color in temp_cat:
            symbol = QgsSymbolV2.defaultSymbol(self.layer.geometryType())
            symbol.setColor(QColor(color))
            symbol.setWidth(0.5)
            rng = QgsRendererRangeV2(lower, upper, symbol, label)
            ranges.append(rng)

        # create the renderer and assign it to a layer
        expression = []
        for feature in layer.getFeatures():
            attrs = feature.attributes()
            sum(attrs[29:33]) / 6
        self.renderer = QgsGraduatedSymbolRendererV2(expression, ranges)
Пример #11
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    def showLegend(self, layer, field, setting_list):
        if not self.cellstyle:
            self.styleManager = QgsMapLayerStyleManager(layer)
            self.styleManager.addStyleFromLayer(u'默认')
            self.cellstyle = True

        ranges = []
        flabel = QLabel(field)
        fl = QHBoxLayout()
        fl.addWidget(flabel)
        self.vbox.addLayout(fl)
        for bl in setting_list:
            widget = QWidget(self)
            widget.setStyleSheet('QWidget {background-color:%s}' %
                                 bl[0].name())
            widget.resize(20, 20)
            label = QLabel(str(bl[1]) + u'—' + str(bl[2]))
            c = QHBoxLayout()
            c.addWidget(widget)
            c.addWidget(label)
            c.setStretchFactor(widget, 1)
            c.setStretchFactor(label, 3)
            self.vbox.addLayout(c)

            sym = QgsSymbolV2.defaultSymbol(layer.geometryType())
            sym.setColor(bl[0])
            rng = QgsRendererRangeV2(bl[1], bl[2], sym, label.text())
            ranges.append(rng)

        self.vbox.addStretch(1)
        self.setLayout(self.vbox)

        renderer = QgsGraduatedSymbolRendererV2(field, ranges)
        layer.setRendererV2(renderer)
        self.iface.actionDraw().trigger()
Пример #12
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    def run(self):
        """Specific stuff at tool activating."""

        s = QSettings()
        layer = iface.mapCanvas().currentLayer()
        if not layer:
            return
        if findButtonByActionName("Afficher avancement de la saisie").isChecked():

            # define a lookup: value -> (color, label)
            completion = {0: ("#ddd", "Aucune saisie"), 1: ("#7a7", "Saisie partielle"), 2: ("#0c0", "Saisie complète")}

            # create a category for each item
            categories = []
            for completion_code, (color, label) in completion.items():
                symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
                symbol.setColor(QColor(color))
                category = QgsRendererCategoryV2(completion_code, symbol, label)
                categories.append(category)

            # create the renderer and assign it to a layer
            expression = "lgd_compl"  # field name
            renderer = QgsCategorizedSymbolRendererV2(expression, categories)
            styleName = pluginDirectory + "/" + layer.name() + ".qml"
            if not s.value("layer_lgd_style/" + layer.name()):
                layer.saveNamedStyle(styleName)
                layer.setRendererV2(renderer)
                s.setValue("layer_lgd_style/" + layer.name(), 1)
        else:
            styleName = pluginDirectory + "/" + layer.name() + ".qml"
            layer.loadNamedStyle(styleName)
            s.setValue("layer_lgd_style/" + layer.name() + "/", 0)
        layer.triggerRepaint()
Пример #13
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def prepare_route_symbol(nb_route):
    colors = ['#1f78b4', '#ffff01', '#ff7f00', '#fb9a99', '#b2df8a', '#e31a1c']
    p = nb_route % len(colors)
    my_symb = QgsSymbolV2.defaultSymbol(1)
    my_symb.setColor(QColor(colors[p]))
    my_symb.setWidth(1.2)
    return my_symb
 def create_join_renderer(self, layer, field, classes, mode, color='PuBu'):
     symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
     style = QgsStyleV2().defaultStyle()
     colorRamp = style.colorRampRef(color)
     renderer = QgsGraduatedSymbolRendererV2.createRenderer(layer, field, classes, mode, symbol, colorRamp)
     label_format = self.create_join_label_format(2)
     renderer.setLabelFormat(label_format)
     return renderer
Пример #15
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def hazard_class_style(layer, classification, display_null=False):
    """Set colors to the layer according to the hazard.

    :param layer: The layer to style.
    :type layer: QgsVectorLayer

    :param display_null: If we should display the null hazard zone. Default to
        False.
    :type display_null: bool

    :param classification: The hazard classification to use.
    :type classification: dict safe.definitions.hazard_classifications
    """
    categories = []

    # Conditional styling
    attribute_table_styles = []

    for hazard_class, (color, label) in classification.iteritems():
        if hazard_class == not_exposed_class['key'] and not display_null:
            # We don't want to display the null value (not exposed).
            # We skip it.
            continue

        symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
        symbol.setColor(color)
        if is_line_layer(layer):
            symbol.setWidth(line_width_exposure)
        category = QgsRendererCategoryV2(hazard_class, symbol, label)
        categories.append(category)

        style = QgsConditionalStyle()
        style.setName(hazard_class)
        style.setRule("hazard_class='%s'" % hazard_class)
        style.setBackgroundColor(transparent)
        symbol = QgsSymbolV2.defaultSymbol(QGis.Point)
        symbol.setColor(color)
        symbol.setSize(3)
        style.setSymbol(symbol)
        attribute_table_styles.append(style)

    layer.conditionalStyles().setFieldStyles(
        'hazard_class', attribute_table_styles)
    renderer = QgsCategorizedSymbolRendererV2(
        hazard_class_field['field_name'], categories)
    layer.setRendererV2(renderer)
Пример #16
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 def getSymbol(self):
     """docstring for __getSymbol"""
     symbol = QgsSymbolV2.defaultSymbol(self.qgslayer.geometryType())
     new_symbol = self.__getQgsSymbol(symbol)
     if new_symbol:
         new_symbol.deleteSymbolLayer(0)
         return new_symbol
     return symbol
Пример #17
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 def apply(self, layer):
     symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
     symbol_layer = QgsSimpleFillSymbolLayerV2.create({'color': self.color})
     if self.border_style:
         symbol_layer.setBorderStyle(self.border_style)
     self.renderer = QgsSingleSymbolRendererV2(symbol)
     self.renderer.symbols()[0].changeSymbolLayer(0, symbol_layer)
     super(SimpleFillSymbology, self).apply(layer)
Пример #18
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def prepare_route_symbol(nb_route):
    colors = ['#1f78b4', '#ffff01', '#ff7f00',
              '#fb9a99', '#b2df8a', '#e31a1c']
    p = nb_route % len(colors)
    my_symb = QgsSymbolV2.defaultSymbol(1)
    my_symb.setColor(QColor(colors[p]))
    my_symb.setWidth(1.2)
    return my_symb
Пример #19
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    def color_layers(self):
        """
        Attempts to assign and color each layer after changing it's renderer to the Categorized Symbol Renderer
        TODO: Implement a store value to look up default names to get standardized Color Grading, If possible
        :return: None
        """
        p = QgsMapLayerRegistry.instance().mapLayers()

        regex = re.compile("\n?(\D*)\d*\n?")

        for key, val in p.iteritems():
            try:
                catagories = []
                a = regex.match(key)
                fcn = QgsVectorGradientColorRampV2()
                # renderer.setWeightExpression(a.group(1))
                # fcn.setColor1(QColor(255, 255, 255, 0))
                # fcn.setColor2(QColor(random.randint(0, 100), random.randint(
                #     50, 255), random.randint(50, 255), 255))

                fcn.setColor1(QColor(255, 0, 0, 255))
                fcn.setColor2(QColor(0, 255, 0, 255))
                # self.com.log(str(fcn.stops()), level=0)
                fcn.setStops([QgsGradientStop(0.5, QColor(255, 207, 74, 255))])

                # renderer.setColorRamp(fcn)
                # renderer.setRenderQuality(1)  # Max out the quality

                # for feature in val.getFeature():
                #     print feature.attribute(a.group(1))

                fni = val.fieldNameIndex(a.group(1))

                # This function is accomplishing the Classify Function, due to
                # the lack of API implementation
                sortedlist = []
                for unique in val.dataProvider().uniqueValues(fni):
                    sortedlist.append(unique)

                sortedlist.sort()

                for i in sortedlist:
                    symbol = QgsSymbolV2.defaultSymbol(val.geometryType())
                    category = QgsRendererCategoryV2(i, symbol, str(i))
                    catagories.append(category)

                renderer = QgsCategorizedSymbolRendererV2(
                    a.group(1), catagories)
                self.com.log(str(renderer.categories()), level=0)
                renderer.updateColorRamp(fcn)
                # renderer.updateCategoryValue(a.group(1))

                val.setRendererV2(renderer)

            except AttributeError:
                # This will allow the Color step to continue if it hits an
                # Object it can't use (Raster layer)
                continue
Пример #20
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def setStyleGrilleControle(layerGrille, idList):

    # Symbologie: cellule a controler
    props1 = {'color': '241,241,241,0', 'size': '0', 'color_border': '255,0,0'}
    symbol1 = QgsFillSymbolV2.createSimple(props1)

    #props2 = {'color': '255,127,0,0', 'size':'0', 'color_border' : '255,127,0', 'width_border':'1'}
    #symbol2 = QgsFillSymbolV2.createSimple(props2)

    # Symbologie: cellule a griser
    props3 = {
        'color': '180,180,180',
        'size': '1',
        'color_border': '180,180,180'
    }
    symbol3 = QgsFillSymbolV2.createSimple(props3)
    symbol3.setAlpha(0.70)

    # On definit les règles de symbologie
    txtRule = ' in ('
    for i in range(len(idList)):
        id = idList[i]
        txtRule = txtRule + str(id) + ', '
    txtRule = txtRule[0:len(txtRule) - 2]
    txtRule = txtRule + ')'

    cell_rules = (('A controler', CONST_ATTRIBUT_ID + ' ' + txtRule, symbol1),
                  ('Pass', CONST_ATTRIBUT_ID + ' not ' + txtRule, symbol3))

    # create a new rule-based renderer
    symbol = QgsSymbolV2.defaultSymbol(layerGrille.geometryType())
    renderer = QgsRuleBasedRendererV2(symbol)

    # get the "root" rule
    root_rule = renderer.rootRule()

    for label, expression, symbol in cell_rules:

        # create a clone (i.e. a copy) of the default rule
        rule = root_rule.children()[0].clone()

        # set the label, expression and color
        rule.setLabel(label)
        rule.setFilterExpression(expression)

        # rule.symbol().setColor(QColor(color_name))
        rule.setSymbol(symbol)

        # append the rule to the list of rules
        root_rule.appendChild(rule)

    # delete the default rule
    root_rule.removeChildAt(0)

    # apply the renderer to the layer
    layerGrille.setRendererV2(renderer)

    return layerGrille
Пример #21
0
def hazard_class_style(layer, classification, display_null=False):
    """Set colors to the layer according to the hazard.

    :param layer: The layer to style.
    :type layer: QgsVectorLayer

    :param display_null: If we should display the null hazard zone. Default to
        False.
    :type display_null: bool

    :param classification: The hazard classification to use.
    :type classification: dict safe.definitions.hazard_classifications
    """
    categories = []

    # Conditional styling
    attribute_table_styles = []

    for hazard_class, (color, label) in classification.iteritems():
        if hazard_class == not_exposed_class['key'] and not display_null:
            # We don't want to display the null value (not exposed).
            # We skip it.
            continue

        symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
        symbol.setColor(color)
        if is_line_layer(layer):
            symbol.setWidth(line_width_exposure)
        category = QgsRendererCategoryV2(hazard_class, symbol, label)
        categories.append(category)

        style = QgsConditionalStyle()
        style.setName(hazard_class)
        style.setRule("hazard_class='%s'" % hazard_class)
        symbol = QgsSymbolV2.defaultSymbol(QGis.Point)
        symbol.setColor(color)
        symbol.setSize(3)
        style.setSymbol(symbol)
        attribute_table_styles.append(style)

    layer.conditionalStyles().setFieldStyles(
        'hazard_class', attribute_table_styles)
    renderer = QgsCategorizedSymbolRendererV2(
        hazard_class_field['field_name'], categories)
    layer.setRendererV2(renderer)
Пример #22
0
def create_join_renderer(layer, field, classes, mode, color='Blues'):
    symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
    style = QgsStyleV2().defaultStyle()
    colorRamp = style.colorRampRef(color)
    renderer = QgsGraduatedSymbolRendererV2.createRenderer(
        layer, field, classes, mode, symbol, colorRamp)
    label_format = create_join_label_format(2)
    renderer.setLabelFormat(label_format)
    return renderer
Пример #23
0
 def __init__(self):
     QgsFeatureRendererV2.__init__(self, "CatalogueCompletenessRenderer")
     complete = QgsSymbolV2.defaultSymbol(QGis.Point)
     uncomplete = QgsMarkerSymbolV2.createSimple(
         {'color': 'blue', 'name': 'triangle'})
     uncomplete.setSize(3)
     complete.setSize(1.5)
     complete.setColor(QtGui.QColor(255, 0, 0, 125))
     self.syms = [complete, uncomplete]
Пример #24
0
    def applySymbology(self):
        self.getConnection()
        vlayer = qgis.utils.iface.mapCanvas().currentLayer()
        if vlayer == None:
            return

        fields = vlayer.dataProvider().fields()
        classField = None
        for f in fields:
            if f.name() == "classtype":
                classField = 'classtype'
            elif f.name() == "result":
                classField = 'result'
        print classField

        class_loaded = False
        for layer in QgsMapLayerRegistry.instance().mapLayers().values():
            if  layer.name() == "class":
                vlayerClass = layer
                class_loaded = True
        if not class_loaded:
            uriSubClass = QgsDataSourceURI()
            uriSubClass.setConnection(self.serverName, "5432", self.database, self.usr , self.pw)
            uriSubClass.setDataSource("classification", "class", None, "", "id")
            vlayerClass = QgsVectorLayer(uriSubClass.uri(), "class", "postgres")
            QgsMapLayerRegistry.instance().addMapLayer(vlayerClass)

        for field in fields:
            index = vlayer.fieldNameIndex(field.name())
            if field.name() == classField:
                vlayer.editFormConfig().setWidgetType(index, 'ValueRelation')
                vlayer.editFormConfig().setWidgetConfig(index, {'Layer': vlayerClass.id(), 'Key': 'id', 'Value': 'classname'})

        useJoin = True
        if useJoin:
            joinObject = QgsVectorJoinInfo()
            joinObject.joinLayerId = vlayerClass.id()
            joinObject.joinFieldName = 'id'
            joinObject.targetFieldName = classField
            joinObject.memoryCache = True
            vlayer.addJoin(joinObject)
            self.join.append(joinObject)
            categories = []
            iter = vlayerClass.getFeatures()
            for feature in iter:
                classname = feature['classname']
                color = QColor(feature['red'], feature['green'], feature['blue'])
                sym = QgsSymbolV2.defaultSymbol(vlayer.geometryType())
                sym.setColor(QColor(color))
                category = QgsRendererCategoryV2(classname, sym, classname)
                categories.append(category)
            field = "class_classname"
            renderer = QgsCategorizedSymbolRendererV2(field, categories)
            vlayer.setRendererV2(renderer)

        qgis.utils.iface.messageBar().pushMessage("Information", "Editor widget set", level = qgis.gui.QgsMessageBar.INFO, duration = 5)
        qgis.utils.iface.setActiveLayer(vlayer)
    def render_and_save_pointwise_output_layer(
            self,
            pointwise_output_csv_filepath,
            output_layer_name,
            on_values_of_attribute,
            graduated_rendering_interval_points,
            shapefile_path=''):

        uri = 'file:///' + pointwise_output_csv_filepath + \
         '?delimiter=%s&crs=epsg:32643&xField=%s&yField=%s' % (',', 'X', 'Y')
        output_layer = QgsVectorLayer(uri, output_layer_name, 'delimitedtext')

        if 'Crop' in on_values_of_attribute:
            ET_D_max = max([
                point.budget.PET_minus_AET_crop_end
                for point in model_calculator.output_grid_points
            ])
        elif 'Monsoon' in on_values_of_attribute:
            ET_D_max = max([
                point.budget.PET_minus_AET_monsoon_end
                for point in model_calculator.output_grid_points
            ])

        graduated_symbol_renderer_range_list = []
        opacity = 1
        intervals_count = len(graduated_rendering_interval_points)
        for i in range(intervals_count):
            interval_min = 0 if graduated_rendering_interval_points[
                i] == 0 else (
                    graduated_rendering_interval_points[i] * ET_D_max / 100.0 +
                    0.01)
            interval_max = (graduated_rendering_interval_points * ET_D_max /
                            100.0)
            label = "{0:.2f} - {1:.2f}".format(interval_min, interval_max)
            colour = QColor(
                int(255 * (1 - (i + 1.0) / (intervals_count + 1.0))), 0,
                0)  # +1 done to tackle boundary cases
            symbol = QgsSymbolV2.defaultSymbol(output_layer.geometryType())
            symbol.setColor(colour)
            symbol.setAlpha(opacity)
            interval_range = QgsRendererRangeV2(interval_min, interval_max,
                                                symbol, label)
            graduated_symbol_renderer_range_list.append(interval_range)
        renderer = QgsGraduatedSymbolRendererV2(
            '', graduated_symbol_renderer_range_list)
        renderer.setMode(QgsGraduatedSymbolRendererV2.EqualInterval)
        renderer.setClassAttribute(on_values_of_attribute)
        output_layer.setRendererV2(renderer)
        QgsMapLayerRegistry.instance().addMapLayer(output_layer)

        if shapefile_path != '':
            QgsVectorFileWriter.writeAsVectorFormat(output_layer,
                                                    shapefile_path, "utf-8",
                                                    None, "ESRI Shapefile")

        return output_layer
    def commitClicked(self):
        feature = self.listWidget.currentItem().feature
        geom = None
        self.attributesTable.setRowCount(len(feature))
        for idx, attrname in enumerate(feature):
            value = feature[attrname]
            font = QFont()
            font.setBold(True)
            font.setWeight(75)
            item = QTableWidgetItem(attrname)
            item.setFont(font)
            self.attributesTable.setItem(idx, 0, item)
            self.attributesTable.setItem(idx, 1, QTableWidgetItem(str(value)))
            if geom is None:
                try:
                    geom = QgsGeometry.fromWkt(value)
                except:
                    pass

        self.attributesTable.resizeRowsToContents()
        self.attributesTable.horizontalHeader().setMinimumSectionSize(150)
        self.attributesTable.horizontalHeader().setStretchLastSection(True)

        settings = QSettings()
        prjSetting = settings.value('/Projections/defaultBehaviour')
        settings.setValue('/Projections/defaultBehaviour', '')
        types = ["Point", "LineString", "Polygon"]
        layers = []
        if geom is not None:
            geomtype = types[int(geom.type())]
            layer = loadLayerNoCrsDialog(geomtype + "?crs=EPSG:4326", "temp",
                                         "memory")
            pr = layer.dataProvider()
            feat = QgsFeature()
            feat.setGeometry(geom)
            pr.addFeatures([feat])
            layer.updateExtents()
            layer.selectAll()
            layer.setExtent(layer.boundingBoxOfSelected())
            layer.invertSelection()
            symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
            symbol.setColor(Qt.green)
            symbol.setAlpha(0.5)
            if QGis.QGIS_VERSION_INT < 29900:
                layer.setRendererV2(QgsSingleSymbolRendererV2(symbol))
            else:
                layer.setRenderer(QgsSingleSymbolRenderer(symbol))
            self.mapCanvas.setRenderFlag(False)
            self.mapCanvas.setLayerSet([QgsMapCanvasLayer(layer)])
            QgsMapLayerRegistry.instance().addMapLayer(layer, False)
            self.mapCanvas.setExtent(layer.extent())
            self.mapCanvas.setRenderFlag(True)
            layers.append(layer)
        else:
            self.mapCanvas.setLayerSet([])
        settings.setValue('/Projections/defaultBehaviour', prjSetting)
Пример #27
0
    def test_setRendererV2(self):
        layer = createLayerWithOnePoint()

        self.rendererChanged = False
        layer.rendererChanged.connect(self.onRendererChanged)

        r = QgsSingleSymbolRendererV2(QgsSymbolV2.defaultSymbol(QGis.Point))
        layer.setRendererV2(r)
        self.assertTrue(self.rendererChanged)
        self.assertEquals(layer.rendererV2(), r)
Пример #28
0
def validatedDefaultSymbol(geometryType):
    symbol = QgsSymbolV2.defaultSymbol(geometryType)
    if symbol is None:
        if geometryType == QGis.Point:
            symbol = QgsMarkerSymbolV2()
        elif geometryType == QGis.Line:
            symbol = QgsLineSymbolV2()
        elif geometryType == QGis.Polygon:
            symbol = QgsFillSymbolV2()
    return symbol
Пример #29
0
def get_default_symbol( geom_type):
    symbol = QgsSymbolV2.defaultSymbol(geom_type)
    if symbol is None:
        if geom_type == QGis.Point:
            symbol = QgsMarkerSymbolV2()
        elif geom_type == QGis.Line:
            symbol = QgsLineSymbolV2()
        elif geom_type == QGis.Polygon:
            symbol = QgsFillSymbolV2()
    return symbol
Пример #30
0
    def test_setRendererV2(self):
        layer = createLayerWithOnePoint()

        self.rendererChanged = False
        layer.rendererChanged.connect(self.onRendererChanged)

        r = QgsSingleSymbolRendererV2(QgsSymbolV2.defaultSymbol(QGis.Point))
        layer.setRendererV2(r)
        self.assertTrue(self.rendererChanged)
        self.assertEquals(layer.rendererV2(), r)
    def commitClicked(self):
        feature = self.listWidget.currentItem().feature
        geom = None
        self.attributesTable.setRowCount(len(feature))
        for idx, attrname in enumerate(feature):
            value = feature[attrname]
            font = QFont()
            font.setBold(True)
            font.setWeight(75)
            item = QTableWidgetItem(attrname)
            item.setFont(font)
            self.attributesTable.setItem(idx, 0, item);
            self.attributesTable.setItem(idx, 1, QTableWidgetItem(str(value)));
            if geom is None:
                try:
                    geom = QgsGeometry.fromWkt(value)
                except:
                    pass

        self.attributesTable.resizeRowsToContents()
        self.attributesTable.horizontalHeader().setMinimumSectionSize(150)
        self.attributesTable.horizontalHeader().setStretchLastSection(True)

        settings = QSettings()
        prjSetting = settings.value('/Projections/defaultBehaviour')
        settings.setValue('/Projections/defaultBehaviour', '')
        types = ["Point", "LineString", "Polygon"]
        layers = []
        if geom is not None:
            geomtype = types[int(geom.type())]
            layer = loadLayerNoCrsDialog(geomtype + "?crs=EPSG:4326", "temp", "memory")
            pr = layer.dataProvider()
            feat = QgsFeature()
            feat.setGeometry(geom)
            pr.addFeatures([feat])
            layer.updateExtents()
            layer.selectAll()
            layer.setExtent(layer.boundingBoxOfSelected())
            layer.invertSelection()
            symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
            symbol.setColor(Qt.green)
            symbol.setAlpha(0.5)
            if QGis.QGIS_VERSION_INT < 29900:
                layer.setRendererV2(QgsSingleSymbolRendererV2(symbol))
            else:
                layer.setRenderer(QgsSingleSymbolRenderer(symbol))
            self.mapCanvas.setRenderFlag(False)
            self.mapCanvas.setLayerSet([QgsMapCanvasLayer(layer)])
            QgsMapLayerRegistry.instance().addMapLayer(layer, False)
            self.mapCanvas.setExtent(layer.extent())
            self.mapCanvas.setRenderFlag(True)
            layers.append(layer)
        else:
            self.mapCanvas.setLayerSet([])
        settings.setValue('/Projections/defaultBehaviour', prjSetting)
Пример #32
0
    def test_setRendererV2( self ):
        layer = createLayerWithOnePoint()

        self.rendererChanged = False
        QObject.connect( layer, SIGNAL( "rendererChanged()" ),
                         self.onRendererChanged )

        r = QgsSingleSymbolRendererV2( QgsSymbolV2.defaultSymbol( QGis.Point ) )
        layer.setRendererV2( r )
        assert self.rendererChanged == True
        assert layer.rendererV2() == r
Пример #33
0
    def test_setRendererV2(self):
        layer = createLayerWithOnePoint()

        self.rendererChanged = False
        QObject.connect(layer, SIGNAL("rendererChanged()"),
                        self.onRendererChanged)

        r = QgsSingleSymbolRendererV2(QgsSymbolV2.defaultSymbol(QGis.Point))
        layer.setRendererV2(r)
        assert self.rendererChanged == True
        assert layer.rendererV2() == r
Пример #34
0
    def _apply_symbology_fixed_divisions(self, layer, field, tbl_name, schema,
                                         min_v, max_v, steps):
        """Finds the amount of levels that is necessary to describe the layer,
        a maximum of 20 different levels is set"""
        if min_v is not None and max_v is not None:
            distinct_values = list(np.arange(min_v, max_v, steps))
        else:
            distinct = self.DB.get_distinct(tbl_name, field, schema)
            distinct_values = []
            distinct_count = []
            for value, count in distinct:
                distinct_values.append(value)
                distinct_count.append(count)
            if len(distinct_values) > 20:
                distinct_values.sort()
                temp_list = []
                for val in range(0, len(distinct_values),
                                 int(round(len(distinct_values) / 20))):
                    temp_list.append(distinct_values[val])
                distinct_values = temp_list

        colors = self._create_colors(len(distinct_values))
        try:
            range_list = []
            for i in range(len(distinct_values) - 1):
                red, green, blue = colors[i]
                range_list.append(
                    self._make_symbology(
                        layer, distinct_values[i], distinct_values[i + 1],
                        str(distinct_values[i]) + ' - ' +
                        str(distinct_values[i + 1]),
                        QColor(int(red * 255), int(green * 255),
                               int(blue * 255), 128)))
            renderer = QgsGraduatedSymbolRendererV2(field, range_list)
            renderer.setMode(QgsGraduatedSymbolRendererV2.Custom)
        except TypeError:
            categories = []
            for i in range(len(distinct_values)):
                symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
                red, green, blue = colors[i]
                symbol.setColor(
                    QColor(int(red * 255), int(green * 255), int(blue * 255),
                           128))
                symbol.symbolLayer(0).setOutlineColor(
                    QColor(int(red * 255), int(green * 255), int(blue * 255),
                           128))
                category = QgsRendererCategoryV2(str(distinct_values[i]),
                                                 symbol,
                                                 str(distinct_values[i]))
                categories.append(category)
            renderer = QgsCategorizedSymbolRendererV2(field, categories)
            #renderer.setMode(QgsCategorizedSymbolRendererV2.Custom)
        layer.setRendererV2(renderer)
Пример #35
0
 def _validated_default_symbol(self, geometryType):
     """Validates that the symbol is of the correct type, (point, line or
     polygon and then returning a Qgis type symbol)"""
     symbol = QgsSymbolV2.defaultSymbol(geometryType)
     if symbol is None:
         if geometryType == QGis.Point:
             symbol = QgsMarkerSymbolV2()
         elif geometryType == QGis.Line:
             symbol = QgsLineSymbolV2()
         elif geometryType == QGis.Polygon:
             symbol = QgsFillSymbolV2()
     return symbol
Пример #36
0
    def make_svg_node_sym_renderer(self, vlay, icon_name, size):

        current_dir = os.path.dirname(__file__)

        svg_style = dict()
        svg_style['name'] = os.path.join(current_dir, icon_name)
        svg_style['size'] = str(size)
        symbol_layer = QgsSvgMarkerSymbolLayerV2.create(svg_style)
        symbol = QgsSymbolV2.defaultSymbol(vlay.geometryType())
        symbol.changeSymbolLayer(0, symbol_layer)
        renderer = QgsSingleSymbolRendererV2(symbol)

        return renderer
Пример #37
0
 def apply(self, layer):
     ranges = []
     for lower, upper, label, color in self.ranges:
         symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
         symbol.setColor(color)
         if self.no_pen:
             #symbol.setColorBorder('255, 0, 0, 0')
             symbol.symbolLayer(0).setOutlineColor(QtGui.QColor(255, 0, 0, 0))
         ranges.append(QgsRendererRangeV2(lower, upper, symbol, label))
     self.renderer = QgsGraduatedSymbolRendererV2(self.field, ranges)
     #self.renderer.setClassAttribute(self.field)
     #self.renderer.setSourceColorRamp(self.color_ramp)
     #self.renderer.setInvertedColorRamp(self.inverted)
     #self.renderer.updateColorRamp(inverted=self.inverted)
     super(GraduatedSymbology, self).apply(layer)
Пример #38
0
def setStyleGrilleSaisie(layerGrille, currid):

    props1 = {
        'color': '241,241,241,0',
        'size': '0',
        'color_border': '255,0,0',
        'width_border': '0.5'
    }
    symbol1 = QgsFillSymbolV2.createSimple(props1)

    props2 = {'color': '255,127,0,0', 'size': '0', 'color_border': '255,127,0'}
    symbol2 = QgsFillSymbolV2.createSimple(props2)

    # On definit les règles de symbologie
    cell_rules = (('Cellule en cours', CONST_ATTRIBUT_ID + ' = ' + str(currid),
                   symbol1),
                  ('Autre cellule', CONST_ATTRIBUT_ID + ' != ' + str(currid),
                   symbol2))

    # create a new rule-based renderer
    symbol = QgsSymbolV2.defaultSymbol(layerGrille.geometryType())
    renderer = QgsRuleBasedRendererV2(symbol)

    # get the "root" rule
    root_rule = renderer.rootRule()

    for label, expression, symbol in cell_rules:

        # create a clone (i.e. a copy) of the default rule
        rule = root_rule.children()[0].clone()

        # set the label, expression and color
        rule.setLabel(label)
        rule.setFilterExpression(expression)

        # rule.symbol().setColor(QColor(color_name))
        rule.setSymbol(symbol)

        # append the rule to the list of rules
        root_rule.appendChild(rule)

    # delete the default rule
    root_rule.removeChildAt(0)

    # apply the renderer to the layer
    layerGrille.setRendererV2(renderer)

    return layerGrille
Пример #39
0
def vector_apply_unique_value_renderer(vector_layer, column):
    """Apply colours to each unique value for a vector layer column.

    source: https://gis.stackexchange.com/a/175114

    Args:
        vector_layer (QgsVectorLayer): A vector layer to apply unique symbology to.
        column (str): The column containing the unique values

    """

    categories = []
    uniq_vals = vector_layer.dataProvider().uniqueValues(
        vector_layer.fieldNameIndex(column))
    randcolors = random_colours(len(uniq_vals))

    for i, ea_value in enumerate(uniq_vals):
        # initialize the default symbol for this geometry type
        symbol = QgsSymbolV2.defaultSymbol(vector_layer.geometryType())

        # configure a symbol layer
        layer_style = {
            'color': '{}, {}, {}'.format(*randcolors[i]),
            'outline': '#000000'
        }

        symbol_layer = QgsSimpleFillSymbolLayerV2.create(layer_style)

        # replace default symbol layer with the configured one
        if symbol_layer is not None:
            symbol.changeSymbolLayer(0, symbol_layer)

        # create renderer object
        category = QgsRendererCategoryV2(ea_value, symbol, str(ea_value))

        # entry for the list of category items
        categories.append(category)

    # create renderer object
    renderer = QgsCategorizedSymbolRendererV2(column, categories)

    # assign the created renderer to the layer
    if renderer is not None:
        vector_layer.setRendererV2(renderer)

    # refresh
    vector_layer.triggerRepaint()
Пример #40
0
    def make_OD_markers(nb, xo, yo, xd, yd, list_coords=None):
        """
        Prepare the Origin (green), Destination (red) and Intalternative_geometriesermediates (grey)
        markers.
        """
        OD_layer = QgsVectorLayer(
            "Point?crs=epsg:4326&field=id_route:integer&field=role:string(80)",
            "markers_osrm{}".format(nb), "memory")
        features = []
        fet = QgsFeature()
        fet.setGeometry(QgsGeometry.fromPoint(QgsPoint(float(xo), float(yo))))
        fet.setAttributes([nb, 'Origin'])
        features.append(fet)
        fet = QgsFeature()
        fet.setGeometry(QgsGeometry.fromPoint(QgsPoint(float(xd), float(yd))))
        fet.setAttributes([nb, 'Destination'])
        features.append(fet)
        marker_rules = [
            ('Origin', '"role" LIKE \'Origin\'', '#50b56d', 4),
            ('Destination', '"role" LIKE \'Destination\'', '#d31115', 4),
        ]
        if list_coords:
            for i, pt in enumerate(list_coords):
                fet = QgsFeature()
                fet.setGeometry(
                    QgsGeometry.fromPoint(QgsPoint(float(pt[0]), float(pt[1])))
                    )
                fet.setAttributes([nb, 'Via point n°{}'.format(i)])
                features.append(fet)
            marker_rules.insert(
                1, ('Intermediate', '"role" LIKE \'Via point%\'', 'grey', 2))
        OD_layer.dataProvider().addFeatures(features)

        symbol = QgsSymbolV2.defaultSymbol(OD_layer.geometryType())
        renderer = QgsRuleBasedRendererV2(symbol)
        root_rule = renderer.rootRule()
        for label, expression, color_name, size in marker_rules:
            rule = root_rule.children()[0].clone()
            rule.setLabel(label)
            rule.setFilterExpression(expression)
            rule.symbol().setColor(QtGui.QColor(color_name))
            rule.symbol().setSize(size)
            root_rule.appendChild(rule)

        root_rule.removeChildAt(0)
        OD_layer.setRendererV2(renderer)
        return OD_layer
Пример #41
0
    def make_OD_markers(nb, xo, yo, xd, yd, list_coords=None):
        """
        Prepare the Origin (green), Destination (red) and Intermediates (grey)
        markers.
        """
        OD_layer = QgsVectorLayer(
            "Point?crs=epsg:4326&field=id_route:integer&field=role:string(80)",
            "markers_osrm{}".format(nb), "memory")
        features = []
        fet = QgsFeature()
        fet.setGeometry(QgsGeometry.fromPoint(QgsPoint(float(xo), float(yo))))
        fet.setAttributes([nb, 'Origin'])
        features.append(fet)
        fet = QgsFeature()
        fet.setGeometry(QgsGeometry.fromPoint(QgsPoint(float(xd), float(yd))))
        fet.setAttributes([nb, 'Destination'])
        features.append(fet)
        marker_rules = [
            ('Origin', '"role" LIKE \'Origin\'', '#50b56d', 4),
            ('Destination', '"role" LIKE \'Destination\'', '#d31115', 4),
        ]
        if list_coords:
            for i, pt in enumerate(list_coords):
                fet = QgsFeature()
                fet.setGeometry(
                    QgsGeometry.fromPoint(QgsPoint(float(pt[0]),
                                                   float(pt[1]))))
                fet.setAttributes([nb, 'Via point n°{}'.format(i)])
                features.append(fet)
            marker_rules.insert(
                1, ('Intermediate', '"role" LIKE \'Via point%\'', 'grey', 2))
        OD_layer.dataProvider().addFeatures(features)

        symbol = QgsSymbolV2.defaultSymbol(OD_layer.geometryType())
        renderer = QgsRuleBasedRendererV2(symbol)
        root_rule = renderer.rootRule()
        for label, expression, color_name, size in marker_rules:
            rule = root_rule.children()[0].clone()
            rule.setLabel(label)
            rule.setFilterExpression(expression)
            rule.symbol().setColor(QtGui.QColor(color_name))
            rule.symbol().setSize(size)
            root_rule.appendChild(rule)

        root_rule.removeChildAt(0)
        OD_layer.setRendererV2(renderer)
        return OD_layer
Пример #42
0
def symbolize(layer, oldlayer):
    renderer = None

    # See if we can figure out ho thick the line is to begin with:
    # create a new single symbol renderer
    symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
    renderer = QgsSingleSymbolRendererV2(symbol)

    # symbol_layer = QgsSimpleLineSymbolLayerV2.create(properties)
    symbol_layer = QgsSimpleLineSymbolLayerV2(random_color(), 2.0)

    # assign the symbol layer to the symbol
    # TODO: on windows:::  'NoneType' object has no attribute 'appendSymbolLayer'
    renderer.symbol().appendSymbolLayer(symbol_layer)

    # assign the renderer to the layer
    layer.setRendererV2(renderer)
Пример #43
0
 def __init__(self,
              iface,
              layer_name,
              symbol,
              color,
              size,
              attributes,
              group=None,
              visible=True):
     "..."
     WGS84Layer.__init__(self, iface, layer_name, "Point", visible, group)
     props = self.layer.rendererV2().symbol().symbolLayer(0).properties()
     symbol = QgsSymbolV2.defaultSymbol(QGis.Point)
     symbol.setSize(1.5)
     self.layer.rendererV2().setSymbol(symbol)
     WGS84Layer.refresh_legend(self)
     self.set_attributes(attributes)
Пример #44
0
    def make(cls, catalogue_map):
        layer = catalogue_map.catalogue_layer
        symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
        ramp = QgsVectorGradientColorRampV2.create(
            dict(color1='white', color2='blue'))

        symbol.setSize(0.15)
        # number of color classes = 8
        renderer = cls.createRenderer(
            layer, "depth", 8,
            QgsGraduatedSymbolRendererV2.Quantile, symbol, ramp)

        renderer.setSizeScaleField("_magnitude")
        renderer.setScaleMethod(QgsSymbolV2.ScaleDiameter)
        renderer.update_syms = lambda x: x

        return renderer
Пример #45
0
 def add_final_pts(self, pts):
     center_pt_layer = QgsVectorLayer(
         "Point?crs=epsg:4326&field=id_center:integer&field=role:string(80)",
         "center_{}".format(self.nb_isocr), "memory")
     my_symb = QgsSymbolV2.defaultSymbol(0)
     my_symb.setColor(QtGui.QColor("#e31a1c"))
     my_symb.setSize(1.2)
     center_pt_layer.setRendererV2(QgsSingleSymbolRendererV2(my_symb))
     features = []
     for nb, pt in enumerate(pts):
         xo, yo = pt["point"]
         fet = QgsFeature()
         fet.setGeometry(QgsGeometry.fromPoint(QgsPoint(float(xo), float(yo))))
         fet.setAttributes([nb, 'Origin'])
         features.append(fet)
     center_pt_layer.dataProvider().addFeatures(features)
     QgsMapLayerRegistry.instance().addMapLayer(center_pt_layer)
    def add_symbology(self):
        low_color = self.color_low_value.color()
        high_color = self.color_high_value.color()
        index = self.cbx_mode.currentIndex()
        mode = self.cbx_mode.itemData(index)
        classes = self.spinBox_classes.value()

        # Compute renderer
        # noinspection PyArgumentList
        symbol = QgsSymbolV2.defaultSymbol(QGis.Polygon)

        color_ramp = QgsVectorGradientColorRampV2(low_color, high_color)
        # noinspection PyArgumentList
        renderer = QgsGraduatedSymbolRendererV2.createRenderer(
            self.output_layer, self.name_field, classes, mode, symbol,
            color_ramp)
        self.output_layer.setRendererV2(renderer)
Пример #47
0
 def add_final_pts(self, pts):
     center_pt_layer = QgsVectorLayer(
         "Point?crs=epsg:4326&field=id_center:integer&field=role:string(80)",
         "isochrone_center_{}".format(self.nb_isocr), "memory")
     my_symb = QgsSymbolV2.defaultSymbol(0)
     my_symb.setColor(QtGui.QColor("#e31a1c"))
     my_symb.setSize(1.2)
     center_pt_layer.setRendererV2(QgsSingleSymbolRendererV2(my_symb))
     features = []
     for nb, pt in enumerate(pts):
         xo, yo = pt["point"]
         fet = QgsFeature()
         fet.setGeometry(
             QgsGeometry.fromPoint(QgsPoint(float(xo), float(yo))))
         fet.setAttributes([nb, 'Origin'])
         features.append(fet)
     center_pt_layer.dataProvider().addFeatures(features)
     QgsMapLayerRegistry.instance().addMapLayer(center_pt_layer)
    def add_symbology(self):
        low_color = self.color_low_value.color()
        high_color = self.color_high_value.color()
        index = self.cbx_mode.currentIndex()
        mode = self.cbx_mode.itemData(index)
        classes = self.spinBox_classes.value()

        # Compute renderer
        # noinspection PyArgumentList
        symbol = QgsSymbolV2.defaultSymbol(QGis.Polygon)

        color_ramp = QgsVectorGradientColorRampV2(low_color, high_color)
        # noinspection PyArgumentList
        renderer = QgsGraduatedSymbolRendererV2.createRenderer(
            self.output_layer,
            self.name_field,
            classes,
            mode,
            symbol,
            color_ramp)
        self.output_layer.setRendererV2(renderer)
Пример #49
0
    def setGraduatedStyle(vl, ranges, field, **kwargs):
        """ set a graduated style """

        # make a symbol for each range
        rangeV2List = []
        for min_val, max_val, attrs in ranges:
            if 'label' in attrs:
                label = attrs['label']
            #elif min_val == None:
            #	label = u'%s <= %s' % (field, max_val)
            #elif max_val == None:
            #	label = u'%s > %s' % (field, min_val)
            else:
                label = u'%s < %s <= %s' % (min_val, field, max_val)

            symbolV2 = QgsSymbolV2.defaultSymbol(vl.geometryType())
            if 'color' in attrs:
                symbolV2.setColor(attrs['color'])
            if 'size' in attrs:
                symbolV2.setSize(attrs['size'])

            # from QGis > 1.8 QgsMarkerSymbolV2 has 2 scale methods: ScaleArea and ScaleDiameter
            if 'sizeScaleMethod' in kwargs and hasattr(symbolV2,
                                                       'setScaleMethod'):
                symbolV2.setScaleMethod(kwargs['sizeScaleMethod'])

            rangeV2 = QgsRendererRangeV2(min_val, max_val, symbolV2, label)
            rangeV2List.append(rangeV2)

        # create the renderer
        renderer = QgsGraduatedSymbolRendererV2(field, rangeV2List)

        # set size scale field
        if 'sizeScaleField' in kwargs:
            renderer.setSizeScaleField(kwargs['sizeScaleField'])

        # set the renderer for the layer
        vl.setRendererV2(renderer)
        Utils.iface.legendInterface().refreshLayerSymbology(vl)
Пример #50
0
	def setGraduatedStyle(vl, ranges, field, **kwargs):
		""" set a graduated style """

		# make a symbol for each range
		rangeV2List = []
		for min_val, max_val, attrs in ranges:
			if 'label' in attrs:
				label = attrs['label']
			#elif min_val == None:
			#	label = u'%s <= %s' % (field, max_val)
			#elif max_val == None:
			#	label = u'%s > %s' % (field, min_val)
			else:
				label = u'%s < %s <= %s' % (min_val, field, max_val)
	
			symbolV2 = QgsSymbolV2.defaultSymbol( vl.geometryType() )
			if 'color' in attrs:
				symbolV2.setColor( attrs['color'] )
			if 'size' in attrs:
				symbolV2.setSize( attrs['size'] )

			# from QGis > 1.8 QgsMarkerSymbolV2 has 2 scale methods: ScaleArea and ScaleDiameter
			if 'sizeScaleMethod' in kwargs and hasattr(symbolV2, 'setScaleMethod'):
				symbolV2.setScaleMethod( kwargs['sizeScaleMethod'] )

			rangeV2 = QgsRendererRangeV2(min_val, max_val, symbolV2, label)
			rangeV2List.append(rangeV2)

		# create the renderer
		renderer = QgsGraduatedSymbolRendererV2( field, rangeV2List )

		# set size scale field
		if 'sizeScaleField' in kwargs:
			renderer.setSizeScaleField( kwargs['sizeScaleField'] )

		# set the renderer for the layer
		vl.setRendererV2( renderer )
		Utils.iface.legendInterface().refreshLayerSymbology(vl)
Пример #51
0
	def setSimpleStyle(vl, **kwargs):
		""" set a simple style """
		symbolV2 = QgsSymbolV2.defaultSymbol( vl.geometryType() )
		if 'color' in kwargs:
			symbolV2.setColor( kwargs['color'] )
		size = kwargs.get('size', None)
		if 'size' in kwargs:
			symbolV2.setSize( kwargs['size'] )

		# in QGis > 1.8 QgsMarkerSymbolV2 has 2 scale methods: ScaleArea and ScaleDiameter
		if 'sizeScaleMethod' in kwargs and hasattr(symbolV2, 'setScaleMethod'):
			symbolV2.setScaleMethod( kwargs['sizeScaleMethod'] )

		# create the renderer
		renderer = QgsSingleSymbolRendererV2( symbolV2 )

		# set size scale field
		if 'sizeScaleField' in kwargs:
			renderer.setSizeScaleField( kwargs['sizeScaleField'] )

		# set the renderer for the layer
		vl.setRendererV2( renderer )
		Utils.iface.legendInterface().refreshLayerSymbology(vl)
Пример #52
0
def set_vector_graduated_style(vector_layer, style):
    """Set graduated QGIS vector style based on InaSAFE style dictionary.

    For **opaque** a value of **0** can be used. For **fully transparent**, a
    value of **100** can be used. The calling function should take care to
    scale the transparency level to between 0 and 100.

    :param vector_layer: A QGIS vector layer that will be styled.
    :type vector_layer: QgsVectorLayer, QgsMapLayer

    :param style: Dictionary of the form as in the example below
    :type style: dict

    :returns: None - Sets and saves style for vector_layer

    Example style::

        {'target_field': 'DMGLEVEL',
        'style_classes':
        [{'transparency': 1, 'max': 1.5, 'colour': '#fecc5c',
          'min': 0.5, 'label': '[0.5 - 1.5] Low damage', 'size' : 1},
        {'transparency': 55, 'max': 2.5, 'colour': '#fd8d3c',
         'min': 1.5, 'label': '[1.5 - 2.5] Medium damage', 'size' : 1},
        {'transparency': 80, 'max': 3.5, 'colour': '#f31a1c',
         'min': 2.5, 'label': '[2.5 - 3.5] High damage', 'size' : 1}]}

    .. note:: The transparency and size keys are optional. Size applies
       to points only.

    .. note:: you can optionally pass border_color also, if not color will be
        used

    .. note:: you can optionally pass data_defined also, this has to be a
        dictionary of property: expressions like
        {'color': 'color_hsv(%s, "pop"/%s*100, %s)' % (hue, max, val)}
    """
    target_field = style['target_field']
    style_classes = style['style_classes']
    geometry_type = vector_layer.geometryType()

    range_list = []
    for style_class in style_classes:
        # Transparency 100: transparent
        # Transparency 0: opaque
        size = 2  # mm
        if 'size' in style_class:
            size = style_class['size']
        transparency_percent = 0
        if 'transparency' in style_class:
            transparency_percent = style_class['transparency']

        if 'min' not in style_class:
            raise StyleError('Style info should provide a "min" entry')
        if 'max' not in style_class:
            raise StyleError('Style info should provide a "max" entry')

        try:
            min_val = float(style_class['min'])
        except TypeError:
            raise StyleError(
                'Class break lower bound should be a number.'
                'I got %s' % style_class['min'])

        try:
            max_val = float(style_class['max'])
        except TypeError:
            raise StyleError('Class break upper bound should be a number.'
                             'I got %s' % style_class['max'])

        color = style_class['colour']
        label = style_class['label']
        color = QtGui.QColor(color)
        # noinspection PyArgumentList
        symbol = QgsSymbolV2.defaultSymbol(geometry_type)
        # We need to create a custom symbol layer as
        # the border colour of a symbol can not be set otherwise
        # noinspection PyArgumentList
        try:
            value = style_class['border_color']
            border_color = QtGui.QColor(value)
        except KeyError:
            border_color = color

        if geometry_type == QGis.Point:
            symbol_layer = QgsSimpleMarkerSymbolLayerV2()
            symbol_layer.setBorderColor(border_color)
            symbol_layer.setSize(size)
            symbol.changeSymbolLayer(0, symbol_layer)
        elif geometry_type == QGis.Polygon:
            symbol_layer = QgsSimpleFillSymbolLayerV2()
            symbol_layer.setBorderColor(border_color)
            symbol.changeSymbolLayer(0, symbol_layer)
        else:
            # for lines we do nothing special as the property setting
            # below should give us what we require.
            pass

        try:
            value = style_class['border_wdth']
            symbol_layer.setBorderWidth(value)
        except (NameError, KeyError):
            # use QGIS default border size
            # NameError is when symbol_layer is not defined (lines for example)
            # KeyError is when borderWidth is not defined
            if hasattr(symbol_layer, 'setBorderWidth') and \
                    geometry_type == QGis.Polygon:
                symbol_layer.setBorderWidth(0)

        # set data defined properties
        try:
            for prop, expr in style_class['data_defined'].iteritems():
                symbol_layer.setDataDefinedProperty(prop, expr)
        except (NameError, KeyError):
            # NameError is when symbol_layer is not defined (lines for example)
            # KeyError is when data_defined is not defined
            pass

        symbol.setColor(color)
        # .. todo:: Check that vectors use alpha as % otherwise scale TS
        # Convert transparency % to opacity
        # alpha = 0: transparent
        # alpha = 1: opaque
        alpha = 1 - transparency_percent / 100.0
        symbol.setAlpha(alpha)
        range_renderer = QgsRendererRangeV2(min_val, max_val, symbol, label)
        range_list.append(range_renderer)

    renderer = QgsGraduatedSymbolRendererV2('', range_list)
    renderer.setMode(QgsGraduatedSymbolRendererV2.EqualInterval)
    renderer.setClassAttribute(target_field)
    vector_layer.setRendererV2(renderer)
    vector_layer.saveDefaultStyle()
Пример #53
0
def set_vector_categorized_style(vector_layer, style):
    """Set categorized QGIS vector style based on InaSAFE style dictionary.

    For **opaque** a value of **0** can be used. For **fully transparent**, a
    value of **100** can be used. The calling function should take care to
    scale the transparency level to between 0 and 100.

    :param vector_layer: A QGIS vector layer that will be styled.
    :type vector_layer: QgsVectorLayer

    :param style: Dictionary of the form as in the example below.
    :type style: dict

    :returns: None - Sets and saves style for vector_layer

    Example::

        {'target_field': 'DMGLEVEL',
        'style_classes':
        [{'transparency': 1, 'value': 1, 'colour': '#fecc5c',
          'label': 'Low damage', 'size' : 1},
        {'transparency': 55, 'value': 2, 'colour': '#fd8d3c',
         'label': 'Medium damage', 'size' : 1},
        {'transparency': 80, 'value': 3, 'colour': '#f31a1c',
         'label': 'High damage', 'size' : 1}]}

    .. note:: The transparency and size keys are optional. Size applies
        to points only.

    .. note:: We should change 'value' in style classes to something more
        meaningful e.g. discriminant value

    .. note:: you can optionally pass border_color also, if not color will be
        used

    .. note:: you can optionally pass border_width also, if not QGIS defaults
        will be used

    .. note:: you can optionally pass data_defined also, this has to be a
        dictionary of property: expressions like
        {'color': 'color_hsv(%s, "pop"/%s*100, %s)' % (hue, max, val)}
    """
    target_field = style['target_field']
    style_classes = style['style_classes']
    geometry_type = vector_layer.geometryType()

    category_list = []
    for style_class in style_classes:
        # Transparency 100: transparent
        # Transparency 0: opaque
        size = 2  # mm
        if 'size' in style_class:
            size = style_class['size']
        transparency_percent = 0
        if 'transparency' in style_class:
            transparency_percent = style_class['transparency']

        if 'value' not in style_class:
            raise StyleError('Style info should provide a "value" entry')

        value = style_class['value']
        colour = style_class['colour']
        label = style_class['label']
        colour = QtGui.QColor(colour)
        try:
            border_color = QtGui.QColor(style_class['border_color'])
        except KeyError:
            border_color = colour

        # noinspection PyArgumentList
        symbol = QgsSymbolV2.defaultSymbol(geometry_type)
        # We need to create a custom symbol layer as
        # the border colour of a symbol can not be set otherwise
        # noinspection PyArgumentList
        if geometry_type == QGis.Point:
            symbol_layer = QgsSimpleMarkerSymbolLayerV2()
            symbol_layer.setBorderColor(border_color)
            symbol_layer.setSize(size)
            symbol.changeSymbolLayer(0, symbol_layer)
        elif geometry_type == QGis.Polygon:
            symbol_layer = QgsSimpleFillSymbolLayerV2()
            symbol_layer.setBorderColor(border_color)
            symbol.changeSymbolLayer(0, symbol_layer)
        else:
            # for lines we do nothing special as the property setting
            # below should give us what we require.
            symbol_layer = None

        try:
            symbol_layer.setBorderWidth(style_class['border_width'])
        except (NameError, KeyError, AttributeError):
            # use QGIS default border size
            # NameError is when symbol_layer is not defined (lines for example)
            # KeyError is when border_width is not defined
            # AttributeError is when setBorderWidth is not defined
            # (QgsSimpleMarkerSymbolLayerV2)
            if hasattr(symbol_layer, 'setBorderWidth') and \
                    geometry_type == QGis.Polygon:
                symbol_layer.setBorderWidth(0)

        # set data defined properties
        try:
            for prop, expr in style_class['data_defined'].iteritems():
                symbol_layer.setDataDefinedProperty(prop, expr)
        except (NameError, KeyError):
            # NameError is when symbol_layer is not defined (lines for example)
            # KeyError is when data_defined is not defined
            pass

        symbol.setColor(colour)
        # .. todo:: Check that vectors use alpha as % otherwise scale TS
        # Convert transparency % to opacity
        # alpha = 0: transparent
        # alpha = 1: opaque
        alpha = 1 - transparency_percent / 100.0
        symbol.setAlpha(alpha)
        category = QgsRendererCategoryV2(value, symbol, label)
        category_list.append(category)

    renderer = QgsCategorizedSymbolRendererV2('', category_list)
    renderer.setClassAttribute(target_field)
    vector_layer.setRendererV2(renderer)
    vector_layer.saveDefaultStyle()
Пример #54
0
    def addMemoryLayer(self):
        '''Adds a layer to contain the feature defined by a bounding box, wkt,
        digitised poly|line|point or selection from other layer.
        '''
        foi_type = self.foi_type.lower()
        if foi_type == 'areaofinterestdefiner':
            layer = QgsVectorLayer("Polygon", "Area of Interest",  "memory")
        if foi_type == 'lineofinterestdefiner':
            layer = QgsVectorLayer("Linestring", "Line of Interest",  "memory")
        if foi_type == 'pointofinterestdefiner':
            layer = QgsVectorLayer("Point", "Point of Interest",  "memory")

        if foi_type == 'areaofinterestdefiner':
            sym = QgsSymbol(QGis.Polygon)
            sym.setColor(QtCore.Qt.black)
            sym.setFillColor(QtCore.Qt.green)
            sym.setFillStyle(QtCore.Qt.Dense6Pattern)
            sym.setLineWidth(0.5)
            sr = QgsSingleSymbolRenderer(QGis.Polygon)
        if foi_type == 'lineofinterestdefiner':
            sym = QgsSymbol(QGis.Line)
            sym.setColor(QtCore.Qt.black)
            sym.setFillColor(QtCore.Qt.green)
            sym.setFillStyle(QtCore.Qt.SolidPattern)
            sym.setLineWidth(0.5)
            sr = QgsSingleSymbolRenderer(QGis.Line)
        if foi_type == 'pointofinterestdefiner':
            sym = QgsSymbol(QGis.Point)
            sym.setColor(QtCore.Qt.black)
            sym.setFillColor(QtCore.Qt.green)
            sym.setFillStyle(QtCore.Qt.SolidPattern)
            sym.setLineWidth(0.3)
            sym.setPointSize(4)
            sym.setNamedPointSymbol("hard:triangle")
            sr = QgsSingleSymbolRenderer(QGis.Point)

        sr.addSymbol(sym)
        layer.setRenderer(sr)
        if not layer.isValid():
            print "invalid layer"
            return
        ml_dp = layer.dataProvider()
        ml_dp.addAttributes([QgsField("gid", QtCore.QVariant.String)])
        # add layer to the registry
        self.mem_layer_obj = QgsMapLayerRegistry.instance().addMapLayer(layer)

        # set extent to the extent of our layer
        #self.canvas.setExtent(layer.extent())

        # set the map canvas layer set
        cl = QgsMapCanvasLayer(layer)
        self.mapCanvasLayers.insert(0, cl)
        #layers = [cl]
        self.canvas.setLayerSet(self.mapCanvasLayers)
        print "added Layer"
Пример #55
0
    def view(self):
        """create view and import layers"""
        layer = QgsMapLayerRegistry.instance().mapLayer(
                self.current_layers[0] )
        uri = QgsDataSourceURI(layer.source())
        mtch = re.match(r'(.+)_([^_]+)_rev_(head|\d+)', uri.schema())
        schema = mtch.group(1)
        assert(schema)

        # Disconnect signals previously connected upon calling this function
        # The first time this function is called will throw an error because no
        # previous connections to the slots were made
        try:
            #print "Disconnecting ..."
            self.q_view_dlg.tblw.itemChanged.disconnect()
            self.q_view_dlg.diffmode_chk.stateChanged.disconnect()
        except:
            #print "Failed disconnection"
            pass

        # Make sure combobox is initalized correctly
        self.q_view_dlg.diffmode_chk.setCheckState(Qt.Unchecked)
        self.q_view_dlg.diffmode_chk.setEnabled(False)

        pcur = versioning_base.Db( psycopg2.connect(self.pg_conn_info()) )
        pcur.execute("SELECT rev, author, date::timestamp(0), branch, commit_msg "
            "FROM "+schema+".revisions ORDER BY rev ASC")
        revs = pcur.fetchall()
        pcur.close()

        self.q_view_dlg.tblw.setRowCount(len(revs))
        self.q_view_dlg.tblw.setColumnCount(5)
        self.q_view_dlg.tblw.setHorizontalHeaderLabels(['Rev#', 'Author', 'Date',
                                        'Branch', 'Commit Message'])

        for i, rev in enumerate(revs):
            for j, item in enumerate(rev):
                self.q_view_dlg.tblw.setItem(i,j,QTableWidgetItem( str(item) ))
                # set rev# checkable
                if j == 0:
                    self.q_view_dlg.tblw.item(i,j).setCheckState(Qt.Unchecked)

        self.q_view_dlg.tblw.itemChanged.connect(self.enable_diffmode)
        self.q_view_dlg.tblw.resizeRowsToContents()
        self.q_view_dlg.tblw.resizeColumnsToContents()
        self.q_view_dlg.diffmode_chk.stateChanged.connect(self.check_branches)

        if not self.q_view_dlg.exec_():
            return

        rows = set()
        revision_number_list = []
        branches = []

        for i in range(len(revs)):
            if  self.q_view_dlg.tblw.item(i,0).checkState():
                print "Revision "+ self.q_view_dlg.tblw.item(i,0).text() +" will be fetched"
                revision_number_list.append(int(self.q_view_dlg.tblw.item(i,0).text()))
                branches.append(self.q_view_dlg.tblw.item(i,3).text())
                rows.add(self.q_view_dlg.tblw.item(i,0).row())

        progressMessageBar = self.iface.messageBar().createMessage("Querying "
        "the database for revision(s) "+str(revision_number_list))
        progress = QProgressBar()
        progress.setMaximum(len(rows))
        progress.setAlignment(Qt.AlignLeft|Qt.AlignVCenter)
        progressMessageBar.layout().addWidget(progress)
        self.iface.messageBar().pushWidget(progressMessageBar, self.iface.messageBar().INFO)
        progress.setValue(0)

        # if diffmode, create one layer with feature differences between the
        # two revisions; else checkout the full data sets for the specified
        # revisions and put them in separate layers (original behaviour)
        rev_begin = 0
        rev_end = 0
        empty_layers = []
        grp_name=''

        if self.q_view_dlg.diffmode_chk.isChecked():
            print "Diffmode checked"
            # revision_number_list necessarily has only two items in diffmode
            rev_begin = revision_number_list[0]
            rev_end = revision_number_list[1]
            if rev_begin > rev_end:
                rev_begin, rev_end = rev_end, rev_begin
            # if the two revisions are not on the same branch, exit
            if revs[rev_begin - 1][3] != revs[rev_end - 1][3]:
                print "Revisions are not on the same branch, exiting"
                #print "Rev_begin " +  str(rev_begin) + " is on " + revs[rev_begin - 1][3]
                #print "Rev_end " + str(rev_end) + " is on " + revs[rev_end - 1][3]
                return
            else :
                print "Revisions are on the same branch"
                #print "Rev_begin " + str(rev_begin) + " is on " + revs[rev_begin - 1][3]
                #print "Rev_end " +str(rev_end) + " is on " + revs[rev_end - 1][3]

            grp_name = "Compare revisions "+str(rev_begin)+" vs "+ str(rev_end)
            grp_idx = self.iface.legendInterface().addGroup( grp_name )

            for i, layer_id in enumerate(reversed(self.current_layers)):
                progress.setValue(i+1)
                layer = QgsMapLayerRegistry.instance().mapLayer(layer_id)
                new_uri = QgsDataSourceURI(layer.source())
                select_str = versioning_base.diff_rev_view_str( uri.connectionInfo(),
                    schema, new_uri.table(), branches[0], rev_begin, rev_end )
                # change data source uri to point to select sql
                # schema needs to be set to empty
                new_uri.setDataSource("",
                    "("+select_str+")",
                    new_uri.geometryColumn(),
                    new_uri.sql(),
                    new_uri.keyColumn())
                display_name =  QgsMapLayerRegistry.instance().mapLayer(layer_id).name()
                #print "new_uri.uri() = " + new_uri.uri()
                tmp_pg_layer = self.iface.addVectorLayer( new_uri.uri(),
                       display_name, 'postgres')
                #print "Number of features in layer " + display_name + " = " + str(tmp_pg_layer.featureCount())
                # if layer has no feature, delete tmp layer and resume for loop
                if not(tmp_pg_layer.featureCount()):
                    QgsMapLayerRegistry.instance().removeMapLayer( tmp_pg_layer.id() )
                    empty_layers.append(str(display_name))
                    continue
                mem_uri = self.mem_layer_uri(tmp_pg_layer)

                #print "mem_uri = " + mem_uri
                if  mem_uri == "Unknown":
                    return
                new_mem_layer = self.iface.addVectorLayer( mem_uri,
                    display_name + '_diff', 'memory')
                pr = new_mem_layer.dataProvider()
                source_layer_features = [f for f in tmp_pg_layer.getFeatures()]
                #print "Got features from source vector layer"
                QgsMapLayerRegistry.instance().removeMapLayer( tmp_pg_layer.id() )
                #print "Removed tmp layer"
                pr.addFeatures(source_layer_features)
                #print "Copied source features to mem layer"
                # Style layer to show features as a function of whether they were
                # - added/created ('a')
                # - updated ('u')
                # - deleted ('d')
                # For all feature types, so do once
                # Code from http://snorf.net/blog/2014/03/04/symbology-of-vector-layers-in-qgis-python-plugins
                # For colors, use the names at http://www.w3schools.com/HTML/html_colornames.asp, but lowercase only; tested with "aliceblue"
                # define some rules: label, expression, color name, size, (min scale, max scale)
                modification_type_rules = (
                    ('Intermediate', '"diff_status" LIKE \'i\'', 'aliceblue', 2.0, None),
                    ('Created', '"diff_status" LIKE \'a\'', 'chartreuse', 3.0, None),
                    ('Updated', '"diff_status" LIKE \'u\'', 'sandybrown', 3.0, None),
                    ('Deleted', '"diff_status" LIKE \'d\'', 'red', 3.0, None),)

                symbol = QgsSymbolV2.defaultSymbol(new_mem_layer.geometryType())
                renderer = QgsRuleBasedRendererV2(symbol)
                root_rule = renderer.rootRule()
                for label, expression, color_name, size, scale in modification_type_rules:
                    # create a clone (i.e. a copy) of the default rule
                    rule = root_rule.children()[0].clone()
                    # set the label, expression and color
                    rule.setLabel(label)
                    rule.setFilterExpression(expression)
                    rule.symbol().setColor(QColor(color_name))
                    ##rule.symbol().setSize(size) # works only for POINT layers
                    # set the scale limits if they have been specified
                    ##if scale is not None:
                    ##    rule.setScaleMinDenom(scale[0])
                    ##    rule.setScaleMaxDenom(scale[1])
                    # append the rule to the list of rules
                    root_rule.appendChild(rule)

                # delete the default rule
                root_rule.removeChildAt(0)
                new_mem_layer.setRendererV2(renderer)
                # refresh map and legend
                self.iface.mapCanvas().refresh()
                self.iface.legendInterface().refreshLayerSymbology(new_mem_layer)
                self.iface.legendInterface().moveLayer( new_mem_layer, grp_idx)
        else:
            print "Diffmode unchecked"
            for i, row in enumerate(rows):
                progress.setValue(i+1)
                branch = revs[row][3]
                rev = revs[row][0]
                grp_name = branch+' revision '+str(rev)
                grp_idx = self.iface.legendInterface().addGroup( grp_name )
                for layer_id in reversed(self.current_layers):
                    layer = QgsMapLayerRegistry.instance().mapLayer(layer_id)
                    new_uri = QgsDataSourceURI(layer.source())
                    select_str, where_str =  versioning_base.rev_view_str(
                        self.pg_conn_info(),
                        schema,
                        new_uri.table(),
                        branches[0],
                        rev)
                    new_uri.setSql(where_str)
                    new_uri.setDataSource("",
                        "("+select_str+")",
                        new_uri.geometryColumn(),
                        new_uri.sql(),
                        new_uri.keyColumn())

                    display_name =  QgsMapLayerRegistry.instance().mapLayer(layer_id).name()
                    src = new_uri.uri().replace('()','')
                    new_layer = self.iface.addVectorLayer( src,
                        display_name, 'postgres')
                    self.iface.legendInterface().moveLayer( new_layer, grp_idx)
        self.iface.messageBar().clearWidgets()
        #print "len (self.current_layers) = " + str(len (self.current_layers))
        #print "len(empty_layers) = " + str(len(empty_layers))
        if empty_layers and len(empty_layers) == len (self.current_layers):
            print "No layers in layer group"
            self.iface.messageBar().pushMessage("Notice",
                "No layers will be shown; deleted the \"" +grp_name +"\" layer group",
                level=QgsMessageBar.WARNING, duration = 15)
            self.iface.legendInterface().removeGroup(grp_idx)
        elif empty_layers :
            print "Empty layers"
            self.iface.messageBar().pushMessage("Notice",
                "No modified features between revisions "+str(rev_begin)+" "
                "and "+str(rev_end)+" for layer(s) "+str(empty_layers)+". ",
                level=QgsMessageBar.WARNING, duration = 15)
Пример #56
0
def setVectorStyle(theQgisVectorLayer, theStyle):
    """Set QGIS vector style based on InaSAFE style dictionary.

    For **opaque** a value of **0** can be used. For **fully transparent**, a
    value of **100** can be used. The function should take care to scale the
    transparency level to between 0 and 100.

    Args:
        * theQgisVectorLayer: QgsMapLayer
        * theStyle: dict - Dictionary of the form as in the example below

    Returns:
        None - Sets and saves style for theQgisVectorLayer

    Raises:
        None

    Example:

        {'target_field': 'DMGLEVEL',
        'style_classes':
        [{'transparency': 1, 'max': 1.5, 'colour': '#fecc5c',
          'min': 0.5, 'label': 'Low damage', 'size' : 1},
        {'transparency': 55, 'max': 2.5, 'colour': '#fd8d3c',
         'min': 1.5, 'label': 'Medium damage', 'size' : 1},
        {'transparency': 80, 'max': 3.5, 'colour': '#f31a1c',
         'min': 2.5, 'label': 'High damage', 'size' : 1}]}

        .. note:: The transparency and size keys are optional. Size applies
           to points only.

    """
    myTargetField = theStyle['target_field']
    myClasses = theStyle['style_classes']
    myGeometryType = theQgisVectorLayer.geometryType()

    myRangeList = []
    for myClass in myClasses:
        # Transparency 100: transparent
        # Transparency 0: opaque
        mySize = 2  # mm
        if 'size' in myClass:
            mySize = myClass['size']
        myTransparencyPercent = 0
        if 'transparency' in myClass:
            myTransparencyPercent = myClass['transparency']

        if 'min' not in myClass:
            raise StyleError('Style info should provide a "min" entry')
        if 'max' not in myClass:
            raise StyleError('Style info should provide a "max" entry')

        try:
            myMin = float(myClass['min'])
        except TypeError:
            raise StyleError('Class break lower bound should be a number.'
                'I got %s' % myClass['min'])

        try:
            myMax = float(myClass['max'])
        except TypeError:
            raise StyleError('Class break upper bound should be a number.'
                             'I got %s' % myClass['max'])

        myColour = myClass['colour']
        myLabel = myClass['label']
        myColour = QtGui.QColor(myColour)
        mySymbol = QgsSymbolV2.defaultSymbol(myGeometryType)
        myColourString = "%s, %s, %s" % (
                         myColour.red(),
                         myColour.green(),
                         myColour.blue())
        # Work around for the fact that QgsSimpleMarkerSymbolLayerV2
        # python bindings are missing from the QGIS api.
        # .. see:: http://hub.qgis.org/issues/4848
        # We need to create a custom symbol layer as
        # the border colour of a symbol can not be set otherwise
        myRegistry = QgsSymbolLayerV2Registry.instance()
        if myGeometryType == QGis.Point:
            myMetadata = myRegistry.symbolLayerMetadata('SimpleMarker')
            # note that you can get a list of available layer properties
            # that you can set by doing e.g.
            # QgsSimpleMarkerSymbolLayerV2.properties()
            mySymbolLayer = myMetadata.createSymbolLayer({'color_border':
                                                          myColourString})
            mySymbolLayer.setSize(mySize)
            mySymbol.changeSymbolLayer(0, mySymbolLayer)
        elif myGeometryType == QGis.Polygon:
            myMetadata = myRegistry.symbolLayerMetadata('SimpleFill')
            mySymbolLayer = myMetadata.createSymbolLayer({'color_border':
                                                          myColourString})
            mySymbol.changeSymbolLayer(0, mySymbolLayer)
        else:
            # for lines we do nothing special as the property setting
            # below should give us what we require.
            pass

        mySymbol.setColor(myColour)
        # .. todo:: Check that vectors use alpha as % otherwise scale TS
        # Convert transparency % to opacity
        # alpha = 0: transparent
        # alpha = 1: opaque
        alpha = 1 - myTransparencyPercent / 100.0
        mySymbol.setAlpha(alpha)
        myRange = QgsRendererRangeV2(myMin,
                                     myMax,
                                     mySymbol,
                                     myLabel)
        myRangeList.append(myRange)

    myRenderer = QgsGraduatedSymbolRendererV2('', myRangeList)
    myRenderer.setMode(QgsGraduatedSymbolRendererV2.EqualInterval)
    myRenderer.setClassAttribute(myTargetField)
    theQgisVectorLayer.setRendererV2(myRenderer)
    theQgisVectorLayer.saveDefaultStyle()
Пример #57
0
def setVectorStyle(theQgisVectorLayer, style):
    """Set QGIS vector style based on InaSAFE style dictionary

    Input
        theQgisVectorLayer: Qgis layer
        style: Dictionary of the form as in the example below

        {'target_field': 'DMGLEVEL',
        'style_classes':
        [{'opacity': 1, 'max': 1.5, 'colour': '#fecc5c',
          'min': 0.5, 'label': 'Low damage', 'size' : 1},
        {'opacity': 1, 'max': 2.5, 'colour': '#fd8d3c',
         'min': 1.5, 'label': 'Medium damage', 'size' : 1},
        {'opacity': 1, 'max': 3.5, 'colour': '#f31a1c',
         'min': 2.5, 'label': 'High damage', 'size' : 1}]}

        .. note:: The transparency and size keys are optional. Size applies
           to points only.
    Output
        Sets and saves style for theQgisVectorLayer

    """
    myTargetField = style["target_field"]
    myClasses = style["style_classes"]
    myGeometryType = theQgisVectorLayer.geometryType()

    myRangeList = []
    for myClass in myClasses:
        # Transparency 100: transparent
        # Transparency 0: opaque
        mySize = 2  # mm
        if "size" in myClass:
            mySize = myClass["size"]
        myTransparencyPercent = 0
        if "transparency" in myClass:
            myTransparencyPercent = myClass["transparency"]
        myMax = myClass["max"]
        myMin = myClass["min"]
        myColour = myClass["colour"]
        myLabel = myClass["label"]
        myColour = QtGui.QColor(myColour)
        mySymbol = QgsSymbolV2.defaultSymbol(myGeometryType)
        myColourString = "%s, %s, %s" % (myColour.red(), myColour.green(), myColour.blue())
        # Work around for the fact that QgsSimpleMarkerSymbolLayerV2
        # python bindings are missing from the QGIS api.
        # .. see:: http://hub.qgis.org/issues/4848
        # We need to create a custom symbol layer as
        # the border colour of a symbol can not be set otherwise
        myRegistry = QgsSymbolLayerV2Registry.instance()
        if myGeometryType == QGis.Point:
            myMetadata = myRegistry.symbolLayerMetadata("SimpleMarker")
            # note that you can get a list of available layer properties
            # that you can set by doing e.g.
            # QgsSimpleMarkerSymbolLayerV2.properties()
            mySymbolLayer = myMetadata.createSymbolLayer({"color_border": myColourString})
            mySymbolLayer.setSize(mySize)
            mySymbol.changeSymbolLayer(0, mySymbolLayer)
        elif myGeometryType == QGis.Polygon:
            myMetadata = myRegistry.symbolLayerMetadata("SimpleFill")
            mySymbolLayer = myMetadata.createSymbolLayer({"color_border": myColourString})
            mySymbol.changeSymbolLayer(0, mySymbolLayer)
        else:
            # for lines we do nothing special as the property setting
            # below should give us what we require.
            pass

        mySymbol.setColor(myColour)
        # .. todo:: Check that vectors use alpha as % otherwise scale TS
        # Convert transparency % to opacity
        # alpha = 0: transparent
        # alpha = 1: opaque
        alpha = 1 - myTransparencyPercent / 100
        mySymbol.setAlpha(alpha)
        myRange = QgsRendererRangeV2(myMin, myMax, mySymbol, myLabel)
        myRangeList.append(myRange)

    myRenderer = QgsGraduatedSymbolRendererV2("", myRangeList)
    myRenderer.setMode(QgsGraduatedSymbolRendererV2.EqualInterval)
    myRenderer.setClassAttribute(myTargetField)
    theQgisVectorLayer.setRendererV2(myRenderer)
    theQgisVectorLayer.saveDefaultStyle()
Пример #58
0
def set_vector_categorized_style(vector_layer, style):
    """Set categorized QGIS vector style based on InaSAFE style dictionary.

    For **opaque** a value of **0** can be used. For **fully transparent**, a
    value of **100** can be used. The calling function should take care to
    scale the transparency level to between 0 and 100.

    :param vector_layer: A QGIS vector layer that will be styled.
    :type vector_layer: QgsVectorLayer

    :param style: Dictionary of the form as in the example below.
    :type style: dict

    :returns: None - Sets and saves style for vector_layer

    Example::

        {'target_field': 'DMGLEVEL',
        'style_classes':
        [{'transparency': 1, 'value': 1, 'colour': '#fecc5c',
          'label': 'Low damage', 'size' : 1},
        {'transparency': 55, 'value': 2, 'colour': '#fd8d3c',
         'label': 'Medium damage', 'size' : 1},
        {'transparency': 80, 'value': 3, 'colour': '#f31a1c',
         'label': 'High damage', 'size' : 1}]}

    .. note:: The transparency and size keys are optional. Size applies
        to points only.

    .. note:: We should change 'value' in style classes to something more
        meaningful e.g. discriminant value
    """
    myTargetField = style["target_field"]
    myClasses = style["style_classes"]
    geometry_type = vector_layer.geometryType()

    category_list = []
    for myClass in myClasses:
        # Transparency 100: transparent
        # Transparency 0: opaque
        mySize = 2  # mm
        if "size" in myClass:
            mySize = myClass["size"]
        myTransparencyPercent = 0
        if "transparency" in myClass:
            myTransparencyPercent = myClass["transparency"]

        if "value" not in myClass:
            raise StyleError('Style info should provide a "value" entry')

        try:
            myValue = float(myClass["value"])
        except TypeError:
            raise StyleError("Value should be a number. I got %s" % myClass["value"])

        colour = myClass["colour"]
        label = myClass["label"]
        colour = QtGui.QColor(colour)
        # noinspection PyArgumentList
        symbol = QgsSymbolV2.defaultSymbol(geometry_type)
        # We need to create a custom symbol layer as
        # the border colour of a symbol can not be set otherwise
        # noinspection PyArgumentList
        if geometry_type == QGis.Point:
            symbol_layer = QgsSimpleMarkerSymbolLayerV2()
            symbol_layer.setBorderColor(colour)
            symbol_layer.setSize(mySize)
            symbol.changeSymbolLayer(0, symbol_layer)
        elif geometry_type == QGis.Polygon:
            symbol_layer = QgsSimpleFillSymbolLayerV2()
            symbol_layer.setBorderColor(colour)
            symbol.changeSymbolLayer(0, symbol_layer)
        else:
            # for lines we do nothing special as the property setting
            # below should give us what we require.
            pass

        symbol.setColor(colour)
        # .. todo:: Check that vectors use alpha as % otherwise scale TS
        # Convert transparency % to opacity
        # alpha = 0: transparent
        # alpha = 1: opaque
        alpha = 1 - myTransparencyPercent / 100.0
        symbol.setAlpha(alpha)
        category = QgsRendererCategoryV2(myValue, symbol, label)
        category_list.append(category)

    renderer = QgsCategorizedSymbolRendererV2("", category_list)
    renderer.setClassAttribute(myTargetField)
    vector_layer.setRendererV2(renderer)
    vector_layer.saveDefaultStyle()
Пример #59
0
def set_vector_graduated_style(vector_layer, style):
    """Set graduated QGIS vector style based on InaSAFE style dictionary.

    For **opaque** a value of **0** can be used. For **fully transparent**, a
    value of **100** can be used. The calling function should take care to
    scale the transparency level to between 0 and 100.

    :param vector_layer: A QGIS vector layer that will be styled.
    :type vector_layer: QgsVectorLayer

    :param style: Dictionary of the form as in the example below
    :type style: dict

    :returns: None - Sets and saves style for vector_layer

    Example style::

        {'target_field': 'DMGLEVEL',
        'style_classes':
        [{'transparency': 1, 'max': 1.5, 'colour': '#fecc5c',
          'min': 0.5, 'label': '[0.5 - 1.5] Low damage', 'size' : 1},
        {'transparency': 55, 'max': 2.5, 'colour': '#fd8d3c',
         'min': 1.5, 'label': '[1.5 - 2.5] Medium damage', 'size' : 1},
        {'transparency': 80, 'max': 3.5, 'colour': '#f31a1c',
         'min': 2.5, 'label': '[2.5 - 3.5] High damage', 'size' : 1}]}

    .. note:: The transparency and size keys are optional. Size applies
       to points only.
    """
    myTargetField = style["target_field"]
    myClasses = style["style_classes"]
    myGeometryType = vector_layer.geometryType()

    myRangeList = []
    for myClass in myClasses:
        # Transparency 100: transparent
        # Transparency 0: opaque
        mySize = 2  # mm
        if "size" in myClass:
            mySize = myClass["size"]
        myTransparencyPercent = 0
        if "transparency" in myClass:
            myTransparencyPercent = myClass["transparency"]

        if "min" not in myClass:
            raise StyleError('Style info should provide a "min" entry')
        if "max" not in myClass:
            raise StyleError('Style info should provide a "max" entry')

        try:
            myMin = float(myClass["min"])
        except TypeError:
            raise StyleError("Class break lower bound should be a number." "I got %s" % myClass["min"])

        try:
            myMax = float(myClass["max"])
        except TypeError:
            raise StyleError("Class break upper bound should be a number." "I got %s" % myClass["max"])

        myColour = myClass["colour"]
        myLabel = myClass["label"]
        myColour = QtGui.QColor(myColour)
        # noinspection PyArgumentList
        mySymbol = QgsSymbolV2.defaultSymbol(myGeometryType)
        # We need to create a custom symbol layer as
        # the border colour of a symbol can not be set otherwise
        # noinspection PyArgumentList
        if myGeometryType == QGis.Point:
            mySymbolLayer = QgsSimpleMarkerSymbolLayerV2()
            mySymbolLayer.setBorderColor(myColour)
            mySymbolLayer.setSize(mySize)
            mySymbol.changeSymbolLayer(0, mySymbolLayer)
        elif myGeometryType == QGis.Polygon:
            mySymbolLayer = QgsSimpleFillSymbolLayerV2()
            mySymbolLayer.setBorderColor(myColour)
            mySymbol.changeSymbolLayer(0, mySymbolLayer)
        else:
            # for lines we do nothing special as the property setting
            # below should give us what we require.
            pass

        mySymbol.setColor(myColour)
        # .. todo:: Check that vectors use alpha as % otherwise scale TS
        # Convert transparency % to opacity
        # alpha = 0: transparent
        # alpha = 1: opaque
        alpha = 1 - myTransparencyPercent / 100.0
        mySymbol.setAlpha(alpha)
        myRange = QgsRendererRangeV2(myMin, myMax, mySymbol, myLabel)
        myRangeList.append(myRange)

    myRenderer = QgsGraduatedSymbolRendererV2("", myRangeList)
    myRenderer.setMode(QgsGraduatedSymbolRendererV2.EqualInterval)
    myRenderer.setClassAttribute(myTargetField)
    vector_layer.setRendererV2(myRenderer)
    vector_layer.saveDefaultStyle()
Пример #60
0
 def run(self):
     """Run method that performs all the real work"""
     self.dlg.layerComboBox.clear()
     self.dlg.sheetTypeComboBox.clear()
     self.dlg.scaleComboBox.clear()  
     #self.dlg.label_2.setText('')        
     Alllayers = self.iface.legendInterface().layers()
     #layer_list = []
     lcount=0
     for layer in Alllayers:
         xyCrs = layer.crs()
         if xyCrs.projectionAcronym()=='longlat':
             lcount=lcount+1
             self.dlg.layerComboBox.addItem(layer.name(),layer)
             
     self.dlg.sheetTypeComboBox.addItem('Indian and Adjoining Countries Series Maps')    
     self.dlg.sheetTypeComboBox.addItem('Open Series Maps')    
     
     scale_list=['1:1M','1:250,000','1:125,000','1:50,000','1:25,000']
     self.dlg.scaleComboBox.addItems(scale_list)
     # show the dialog
     self.dlg.show()
     # Run the dialog event loop
     result = self.dlg.exec_()
     # See if OK was pressed
     if result:
         global scaleID
         global sheetw
         global sheeth
         if lcount>0:
             scaleID=self.dlg.scaleComboBox.currentIndex()+1
             maptype= self.dlg.sheetTypeComboBox.currentIndex()+1
             if maptype==1:                
                 sheetw,sheeth=setFactor1(scaleID)
             if maptype==2:
                 sheetw,sheeth=setFactor2(scaleID)               
             index = self.dlg.layerComboBox.currentIndex()
             clayer = self.dlg.layerComboBox.itemData(index)
             e=clayer.extent()
             a,b,c=degDec2dms(e.xMinimum())
             slongs=dmstosec(a,b,c)
             a,b,c=degDec2dms(e.xMaximum())
             elongs=dmstosec(a,b,c)
             a,b,c=degDec2dms(e.yMinimum())
             slats=dmstosec(a,b,c)
             a,b,c=degDec2dms(e.yMaximum())
             elats=dmstosec(a,b,c)
             slongs,elongs,slats,elats=CalculateExtentInTermsOfSheet(slongs,elongs,slats,elats)
             Xgrids=int(elongs-slongs)//sheetw # // is used for modular division
             Ygrids=int(elats-slats)//sheeth
             layer = QgsVectorLayer("Polygon?crs=EPSG:4326", "TopoSheets", "memory")
             global poly
             global pr
             pr = layer.dataProvider() 
             pr.addAttributes([QgsField("id",QVariant.Int),QgsField("SheetNo",QVariant.String),QgsField("Inside",QVariant.String)])
             layer.updateFields()
            
             poly = QgsFeature()
             CalculateSheet(maptype,slats,slongs,Xgrids,Ygrids)
             n=0
             # check intersection of selected layer feature with sheets
             fieldIdx = pr.fields().indexFromName('Inside' )
             updateMap = {}
             for f in clayer.getFeatures():
                 for a in layer.getFeatures():
                     if a.geometry().intersects(f.geometry()):
                         n=n+1
                         updateMap[a.id()] = { fieldIdx:1 }
             pr.changeAttributeValues(updateMap)
             
             # set the layer symbology
             values = (
             ('In', True,True,QColor.fromRgb(95,254,99)),
             ('Out', False,False,'yellow'),
             )
             # create a category for each item in values
             ranges=[]
             for label, lower, upper, color in values:
                 symbol = QgsSymbolV2.defaultSymbol(layer.geometryType())
                 symbol.setColor(QColor(color))
                 rng = QgsRendererRangeV2(lower, upper, symbol, label)
                 ranges.append(rng)
             expression = 'Inside' # field name
             renderer = QgsGraduatedSymbolRendererV2(expression, ranges)
             layer.setRendererV2(renderer)
             
             # set layer transparence and dolabelling
             layer.setLayerTransparency(65)              
             layer.updateExtents()
             QgsMapLayerRegistry.instance().addMapLayers([layer])
             layer.setCustomProperty("labeling", "pal")
             layer.setCustomProperty("labeling/enabled", "true")
             layer.setCustomProperty("labeling/fontFamily", "Arial")
             layer.setCustomProperty("labeling/fontSize", "10")
             layer.setCustomProperty("labeling/fieldName", "SheetNo")
             layer.setCustomProperty("labeling/placement", "1")
             iface.mapCanvas().refresh()
         else:
             iface.messageBar().pushMessage("Error", "No layers loaded, Load layer with Geographic Corrdinates", level=QgsMessageBar.CRITICAL)
         pass