コード例 #1
0
ファイル: mobilityPath.py プロジェクト: dsgoficial/DSGToolsOp
    def doWork(self, tableLayer):
        workLayer = self.layerCombo.currentLayer()
        cutGeom = QgsGeometry().fromRect(workLayer.extent())
        cutLayer = QgsVectorLayer(
            "Polygon?crs={}".format(workLayer.crs().authid()), "temp_cut",
            "memory")
        cut_feature = QgsFeature()
        cut_feature.setGeometry(cutGeom)
        cutLayer.dataProvider().addFeatures([cut_feature])
        restLayers = self.getLayers()

        if restLayers:
            for layer in restLayers:
                cutLayer = processing.run("native:difference", {
                    'INPUT': cutLayer,
                    'OVERLAY': layer,
                    'OUTPUT': 'memory:'
                })['OUTPUT']

            cutted_raster_path = processing.run("gdal:cliprasterbymasklayer", {
                'INPUT': workLayer,
                'MASK': cutLayer,
                'OUTPUT': 'TEMPORARY_OUTPUT'
            })['OUTPUT']

            cutted_raster = QgsRasterLayer(cutted_raster_path)
        else:
            cutted_raster = workLayer

        slopeLayer_path = processing.run(
            "gdal:slope", {
                'INPUT': cutted_raster,
                'BAND': 1,
                'SCALE': 1,
                'AS_PERCENT': False,
                'OUTPUT': 'TEMPORARY_OUTPUT'
            })['OUTPUT']
        slopeLayer = QgsRasterLayer(slopeLayer_path)

        classLayer_path = processing.run(
            "native:reclassifybylayer", {
                'INPUT_RASTER': slopeLayer,
                'RASTER_BAND': 1,
                'INPUT_TABLE': tableLayer,
                'MIN_FIELD': 'Minimo',
                'MAX_FIELD': 'Maximo',
                'VALUE_FIELD': 'Valor',
                'RANGE_BOUNDARIES': 1,
                'OUTPUT': 'TEMPORARY_OUTPUT'
            })['OUTPUT']

        classLayer = QgsRasterLayer(classLayer_path)
        classLayer.setName('Mapa de trafegabilidade')
        QgsProject.instance().addMapLayer(classLayer)
        self.setRasterStyle(classLayer, tableLayer)

        return
コード例 #2
0
    def multibandRasterLayer(self) -> QgsRasterLayer:

        try:
            from utilities import unitTestDataPath
            path = pathlib.Path(unitTestDataPath()) / 'landsat_4326.tif'
        except ModuleNotFoundError:
            path = pathlib.Path(__file__).parent / 'landsat_4326.tif'

        assert isinstance(path, pathlib.Path) and path.is_file()
        lyr = QgsRasterLayer(path.as_posix())
        lyr.setName(path.name)
        self.assertIsInstance(lyr, QgsRasterLayer)
        self.assertTrue(lyr.isValid())
        self.assertTrue(lyr.bandCount() > 1)

        return lyr
コード例 #3
0
ファイル: test_qgsrasterlayer.py プロジェクト: m-kuhn/QGIS
    def testWriteSld(self):
        """Test SLD generation for the XMLS fields geneerated at RasterLayer level and not to the deeper renderer level."""

        myPath = os.path.join(unitTestDataPath(), 'landsat.tif')
        myFileInfo = QFileInfo(myPath)
        myBaseName = myFileInfo.baseName()
        myRasterLayer = QgsRasterLayer(myPath, myBaseName)
        myMessage = 'Raster not loaded: %s' % myPath
        assert myRasterLayer.isValid(), myMessage

        # do generic export with default layer values
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = root.elementsByTagName('sld:LayerFeatureConstraints')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        elements = element.elementsByTagName('sld:FeatureTypeConstraint')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        elements = root.elementsByTagName('sld:UserStyle')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        name = element.firstChildElement('sld:Name')
        self.assertFalse(name.isNull())
        self.assertEqual(name.text(), 'landsat')

        abstract = element.firstChildElement('sld:Abstract')
        self.assertTrue(abstract.isNull())

        title = element.firstChildElement('sld:Title')
        self.assertTrue(title.isNull())

        featureTypeStyle = element.firstChildElement('sld:FeatureTypeStyle')
        self.assertFalse(featureTypeStyle.isNull())

        rule = featureTypeStyle.firstChildElement('sld:Rule')
        self.assertFalse(rule.isNull())

        temp = rule.firstChildElement('sld:MinScaleDenominator')
        self.assertTrue(temp.isNull())

        temp = rule.firstChildElement('sld:MaxScaleDenominator')
        self.assertTrue(temp.isNull())

        rasterSymbolizer = rule.firstChildElement('sld:RasterSymbolizer')
        self.assertFalse(rule.isNull())

        vendorOptions = rasterSymbolizer.elementsByTagName('sld:VendorOption')
        self.assertTrue(vendorOptions.size() == 0)

        # set no default values and check exported sld
        myRasterLayer.setName('')
        myRasterLayer.setAbstract('fake')
        myRasterLayer.setTitle('fake')
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = root.elementsByTagName('sld:LayerFeatureConstraints')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        elements = element.elementsByTagName('sld:FeatureTypeConstraint')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        elements = root.elementsByTagName('sld:UserStyle')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        # no generated if empty
        name = element.firstChildElement('sld:Name')
        self.assertTrue(name.isNull())

        # generated if not empty
        abstract = element.firstChildElement('sld:Abstract')
        self.assertFalse(abstract.isNull())
        self.assertEqual(abstract.text(), 'fake')

        title = element.firstChildElement('sld:Title')
        self.assertFalse(title.isNull())
        self.assertEqual(title.text(), 'fake')

        # if setScaleBasedVisibility is true print scales
        myRasterLayer.setScaleBasedVisibility(True)
        myRasterLayer.setMaximumScale(0.0001)
        myRasterLayer.setMinimumScale(0.01)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:Rule')
        self.assertEqual(len(elements), 1)
        rule = elements.at(0).toElement()
        self.assertFalse(rule.isNull())

        temp = rule.firstChildElement('sld:MinScaleDenominator')
        self.assertFalse(temp.isNull())
        self.assertEqual(temp.text(), '0.0001')

        temp = rule.firstChildElement('sld:MaxScaleDenominator')
        self.assertFalse(temp.isNull())
        self.assertEqual(temp.text(), '0.01')

        # check non default hueSaturationFilter values
        hue = myRasterLayer.hueSaturationFilter()
        hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleLightness)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'grayScale', 'lightness')

        hue = myRasterLayer.hueSaturationFilter()
        hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleLuminosity)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'grayScale', 'luminosity')

        hue = myRasterLayer.hueSaturationFilter()
        hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleAverage)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'grayScale', 'average')

        hue = myRasterLayer.hueSaturationFilter()
        hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleOff)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'grayScale', None)

        # manage colorize vendorOption tags
        hue = myRasterLayer.hueSaturationFilter()
        hue.setColorizeOn(True)
        hue.setColorizeStrength(50)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'colorizeOn', '1')
        self.assertVendorOption(element, 'colorizeRed', '255')
        self.assertVendorOption(element, 'colorizeGreen', '128')
        self.assertVendorOption(element, 'colorizeBlue', '128')
        self.assertVendorOption(element, 'colorizeStrength', '0.5')
        self.assertVendorOption(element, 'saturation', '0.498039')

        # other hue non default values, no colorize and saturation = 0
        hue = myRasterLayer.hueSaturationFilter()
        hue.setColorizeOn(False)
        hue.setSaturation(0)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'colorizeOn', None)
        self.assertVendorOption(element, 'colorizeRed', None)
        self.assertVendorOption(element, 'colorizeGreen', None)
        self.assertVendorOption(element, 'colorizeBlue', None)
        self.assertVendorOption(element, 'colorizeStrength', None)
        self.assertVendorOption(element, 'saturation', None)
        self.assertVendorOption(element, 'brightness', None)
        self.assertVendorOption(element, 'contrast', None)

        # other hue non default values, no colorize and saturation = 100
        hue = myRasterLayer.hueSaturationFilter()
        hue.setColorizeOn(False)
        hue.setSaturation(100)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'colorizeOn', None)
        self.assertVendorOption(element, 'colorizeRed', None)
        self.assertVendorOption(element, 'colorizeGreen', None)
        self.assertVendorOption(element, 'colorizeBlue', None)
        self.assertVendorOption(element, 'colorizeStrength', None)
        self.assertVendorOption(element, 'saturation', '1')
        hue.setSaturation(-100)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        self.assertVendorOption(root, 'saturation', '0')

        # brightness filter default values
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertTrue(myRasterLayer.brightnessFilter().brightness() == 0)
        self.assertTrue(myRasterLayer.brightnessFilter().contrast() == 0)
        self.assertVendorOption(element, 'brightness', None)
        self.assertVendorOption(element, 'contrast', None)

        # brightness filter no default values
        bf = myRasterLayer.brightnessFilter()
        bf.setBrightness(-255)
        bf.setContrast(-100)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'brightness', '0')
        self.assertVendorOption(element, 'contrast', '0')

        bf.setBrightness(255)
        bf.setContrast(100)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'brightness', '1')
        self.assertVendorOption(element, 'contrast', '1')
コード例 #4
0
    def testWriteSld(self):
        """Test SLD generation for the XMLS fields geneerated at RasterLayer level and not to the deeper renderer level."""

        myPath = os.path.join(unitTestDataPath(), 'landsat.tif')
        myFileInfo = QFileInfo(myPath)
        myBaseName = myFileInfo.baseName()
        myRasterLayer = QgsRasterLayer(myPath, myBaseName)
        myMessage = 'Raster not loaded: %s' % myPath
        assert myRasterLayer.isValid(), myMessage

        # do generic export with default layer values
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = root.elementsByTagName('sld:LayerFeatureConstraints')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        elements = element.elementsByTagName('sld:FeatureTypeConstraint')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        elements = root.elementsByTagName('sld:UserStyle')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        name = element.firstChildElement('sld:Name')
        self.assertFalse(name.isNull())
        self.assertEqual(name.text(), 'landsat')

        abstract = element.firstChildElement('sld:Abstract')
        self.assertTrue(abstract.isNull())

        title = element.firstChildElement('sld:Title')
        self.assertTrue(title.isNull())

        featureTypeStyle = element.firstChildElement('sld:FeatureTypeStyle')
        self.assertFalse(featureTypeStyle.isNull())

        rule = featureTypeStyle.firstChildElement('sld:Rule')
        self.assertFalse(rule.isNull())

        temp = rule.firstChildElement('sld:MinScaleDenominator')
        self.assertTrue(temp.isNull())

        temp = rule.firstChildElement('sld:MaxScaleDenominator')
        self.assertTrue(temp.isNull())

        rasterSymbolizer = rule.firstChildElement('sld:RasterSymbolizer')
        self.assertFalse(rule.isNull())

        vendorOptions = rasterSymbolizer.elementsByTagName('sld:VendorOption')
        self.assertTrue(vendorOptions.size() == 0)

        # set no default values and check exported sld
        myRasterLayer.setName('')
        myRasterLayer.setAbstract('fake')
        myRasterLayer.setTitle('fake')
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = root.elementsByTagName('sld:LayerFeatureConstraints')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        elements = element.elementsByTagName('sld:FeatureTypeConstraint')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        elements = root.elementsByTagName('sld:UserStyle')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()

        # no generated if empty
        name = element.firstChildElement('sld:Name')
        self.assertTrue(name.isNull())

        # generated if not empty
        abstract = element.firstChildElement('sld:Abstract')
        self.assertFalse(abstract.isNull())
        self.assertEqual(abstract.text(), 'fake')

        title = element.firstChildElement('sld:Title')
        self.assertFalse(title.isNull())
        self.assertEqual(title.text(), 'fake')

        # if setScaleBasedVisibility is true print scales
        myRasterLayer.setScaleBasedVisibility(True)
        myRasterLayer.setMaximumScale(0.0001)
        myRasterLayer.setMinimumScale(0.01)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:Rule')
        self.assertEqual(len(elements), 1)
        rule = elements.at(0).toElement()
        self.assertFalse(rule.isNull())

        temp = rule.firstChildElement('sld:MinScaleDenominator')
        self.assertFalse(temp.isNull())
        self.assertEqual(temp.text(), '0.0001')

        temp = rule.firstChildElement('sld:MaxScaleDenominator')
        self.assertFalse(temp.isNull())
        self.assertEqual(temp.text(), '0.01')

        # check non default hueSaturationFilter values
        hue = myRasterLayer.hueSaturationFilter()
        hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleLightness)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'grayScale', 'lightness')

        hue = myRasterLayer.hueSaturationFilter()
        hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleLuminosity)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'grayScale', 'luminosity')

        hue = myRasterLayer.hueSaturationFilter()
        hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleAverage)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'grayScale', 'average')

        hue = myRasterLayer.hueSaturationFilter()
        hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleOff)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'grayScale', None)

        # manage colorize vendorOption tags
        hue = myRasterLayer.hueSaturationFilter()
        hue.setColorizeOn(True)
        hue.setColorizeStrength(50)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'colorizeOn', '1')
        self.assertVendorOption(element, 'colorizeRed', '255')
        self.assertVendorOption(element, 'colorizeGreen', '128')
        self.assertVendorOption(element, 'colorizeBlue', '128')
        self.assertVendorOption(element, 'colorizeStrength', '0.5')
        self.assertVendorOption(element, 'saturation', '0.498039')

        # other hue non default values, no colorize and saturation = 0
        hue = myRasterLayer.hueSaturationFilter()
        hue.setColorizeOn(False)
        hue.setSaturation(0)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'colorizeOn', None)
        self.assertVendorOption(element, 'colorizeRed', None)
        self.assertVendorOption(element, 'colorizeGreen', None)
        self.assertVendorOption(element, 'colorizeBlue', None)
        self.assertVendorOption(element, 'colorizeStrength', None)
        self.assertVendorOption(element, 'saturation', None)
        self.assertVendorOption(element, 'brightness', None)
        self.assertVendorOption(element, 'contrast', None)

        # other hue non default values, no colorize and saturation = 100
        hue = myRasterLayer.hueSaturationFilter()
        hue.setColorizeOn(False)
        hue.setSaturation(100)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'colorizeOn', None)
        self.assertVendorOption(element, 'colorizeRed', None)
        self.assertVendorOption(element, 'colorizeGreen', None)
        self.assertVendorOption(element, 'colorizeBlue', None)
        self.assertVendorOption(element, 'colorizeStrength', None)
        self.assertVendorOption(element, 'saturation', '1')
        hue.setSaturation(-100)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        self.assertVendorOption(root, 'saturation', '0')

        # brightness filter default values
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertTrue(myRasterLayer.brightnessFilter().brightness() == 0)
        self.assertTrue(myRasterLayer.brightnessFilter().contrast() == 0)
        self.assertVendorOption(element, 'brightness', None)
        self.assertVendorOption(element, 'contrast', None)

        # brightness filter no default values
        bf = myRasterLayer.brightnessFilter()
        bf.setBrightness(-255)
        bf.setContrast(-100)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'brightness', '0')
        self.assertVendorOption(element, 'contrast', '0')

        bf.setBrightness(255)
        bf.setContrast(100)
        dom, root, errorMessage = self.layerToSld(myRasterLayer)
        elements = dom.elementsByTagName('sld:RasterSymbolizer')
        self.assertEqual(len(elements), 1)
        element = elements.at(0).toElement()
        self.assertFalse(element.isNull())
        self.assertVendorOption(element, 'brightness', '1')
        self.assertVendorOption(element, 'contrast', '1')
コード例 #5
0
class ArchiwalnaOrtofotomapa:
    """QGIS Plugin Implementation."""
    def __init__(self, iface):
        """Constructor.

        :param iface: An interface instance that will be passed to this class
            which provides the hook by which you can manipulate the QGIS
            application at run time.
        :type iface: QgsInterface
        """

        if Qgis.QGIS_VERSION_INT >= 31000:
            from .qgis_feed import QgisFeed
            self.feed = QgisFeed()
            self.feed.initFeed()

        # Save reference to the QGIS interface
        self.iface = iface
        # initialize plugin directory
        self.plugin_dir = os.path.dirname(__file__)

        # initialize locale
        locale = QSettings().value('locale/userLocale')[0:2]
        locale_path = os.path.join(
            self.plugin_dir, 'i18n',
            'ArchiwalnaOrtofotomapa_{}.qm'.format(locale))

        if os.path.exists(locale_path):
            self.translator = QTranslator()
            self.translator.load(locale_path)
            QCoreApplication.installTranslator(self.translator)

        # Declare instance attributes
        self.actions = []
        self.menu = self.tr(u'&EnviroSolutions')
        # TODO: We are going to let the user set this up in a future iteration
        self.toolbar = self.iface.mainWindow().findChild(
            QToolBar, 'EnviroSolutions')
        if not self.toolbar:
            self.toolbar = self.iface.addToolBar(u'EnviroSolutions')
            self.toolbar.setObjectName(u'EnviroSolutions')

        #print "** INITIALIZING ArchiwalnaOrtofotomapa"

        self.pluginIsActive = False
        self.dockwidget = None

        self.canvas = self.iface.mapCanvas()
        self.orto = None

        # --------------------------------------------------------------------------

    # noinspection PyMethodMayBeStatic
    def tr(self, message):
        """Get the translation for a string using Qt translation API.

        We implement this ourselves since we do not inherit QObject.

        :param message: String for translation.
        :type message: str, QString

        :returns: Translated version of message.
        :rtype: QString
        """
        # noinspection PyTypeChecker,PyArgumentList,PyCallByClass
        return QCoreApplication.translate('ArchiwalnaOrtofotomapa', message)

    def add_action(self,
                   icon_path,
                   text,
                   callback,
                   enabled_flag=True,
                   add_to_menu=True,
                   add_to_toolbar=True,
                   status_tip=None,
                   whats_this=None,
                   parent=None):
        """Add a toolbar icon to the toolbar.

        :param icon_path: Path to the icon for this action. Can be a resource
            path (e.g. ':/plugins/foo/bar.png') or a normal file system path.
        :type icon_path: str

        :param text: Text that should be shown in menu items for this action.
        :type text: str

        :param callback: Function to be called when the action is triggered.
        :type callback: function

        :param enabled_flag: A flag indicating if the action should be enabled
            by default. Defaults to True.
        :type enabled_flag: bool

        :param add_to_menu: Flag indicating whether the action should also
            be added to the menu. Defaults to True.
        :type add_to_menu: bool

        :param add_to_toolbar: Flag indicating whether the action should also
            be added to the toolbar. Defaults to True.
        :type add_to_toolbar: bool

        :param status_tip: Optional text to show in a popup when mouse pointer
            hovers over the action.
        :type status_tip: str

        :param parent: Parent widget for the new action. Defaults None.
        :type parent: QWidget

        :param whats_this: Optional text to show in the status bar when the
            mouse pointer hovers over the action.

        :returns: The action that was created. Note that the action is also
            added to self.actions list.
        :rtype: QAction
        """

        icon = QIcon(icon_path)
        action = QAction(icon, text, parent)
        action.triggered.connect(callback)
        action.setEnabled(enabled_flag)

        if status_tip is not None:
            action.setStatusTip(status_tip)

        if whats_this is not None:
            action.setWhatsThis(whats_this)

        if add_to_toolbar:
            self.toolbar.addAction(action)

        if add_to_menu:
            self.iface.addPluginToMenu(self.menu, action)

        self.actions.append(action)

        return action

    def initGui(self):
        """Create the menu entries and toolbar icons inside the QGIS GUI."""

        icon_path = ':/plugins/archiwalna_ortofotomapa/icon_pw2.png'
        self.add_action(icon_path,
                        text=self.tr(u'Archiwalna Ortofotomapa'),
                        callback=self.run,
                        parent=self.iface.mainWindow())

    def onClosePlugin(self):
        """Cleanup necessary items here when plugin dockwidget is closed"""

        #print "** CLOSING ArchiwalnaOrtofotomapa"

        # disconnects
        self.dockwidget.closingPlugin.disconnect(self.onClosePlugin)

        # remove this statement if dockwidget is to remain
        # for reuse if plugin is reopened
        # Commented next statement since it causes QGIS crashe
        # when closing the docked window:
        # self.dockwidget = None

        self.pluginIsActive = False

    def unload(self):
        """Removes the plugin menu item and icon from QGIS GUI."""

        #print "** UNLOAD ArchiwalnaOrtofotomapa"

        for action in self.actions:
            self.iface.removePluginMenu(self.tr(u'&EnviroSolutions'), action)
            #self.iface.removeToolBarIcon(action)
            self.toolbar.removeAction(action)
        # remove the toolbar
        del self.toolbar

    #--------------------------------------------------------------------------

    def run(self):
        """Run method that loads and starts the plugin"""

        if not self.pluginIsActive:
            self.pluginIsActive = True
            #print "** STARTING ArchiwalnaOrtofotomapa"
            if self.orto:
                self.orto.willBeDeleted.disconnect()
            # dockwidget may not exist if:
            #    first run of plugin
            #    removed on close (see self.onClosePlugin method)
            if self.dockwidget == None:
                # Create the dockwidget (after translation) and keep reference
                self.dockwidget = ArchiwalnaOrtofotomapaDockWidget()
            # Eventy
            slider = self.dockwidget.timeSlider
            slider.setMinimum(1997)
            currentYear = datetime.now().year
            slider.setMaximum(currentYear)

            self.isSliderPressed = False

            slider.valueChanged.connect(self.slider_changed)
            slider.sliderReleased.connect(self.slider_released)
            slider.sliderPressed.connect(self.slider_pressed)
            slider.sliderMoved.connect(self.slider_moved)

            # connect to provide cleanup on closing of dockwidget
            self.dockwidget.closingPlugin.connect(self.onClosePlugin)

            # informacje o wersji
            self.dockwidget.lbl_pluginVersion.setText(
                '%s %s' % (plugin_name, plugin_version))

            # show the dockwidget
            # TODO: fix to allow choice of dock location
            self.iface.addDockWidget(Qt.LeftDockWidgetArea, self.dockwidget)
            self.dockwidget.show()

            self.orto = QgsRasterLayer(
                self.makeDataSourceUri(slider.value()),
                "Ortofotomapa Archiwalna %d" % slider.value(), 'wms')
            self.orto.willBeDeleted.connect(self.orto_removal)
            QgsProject.instance().addMapLayer(self.orto)
        else:
            #reopened
            pass

    def orto_removal(self):
        self.dockwidget.close()
        self.orto = None

    def slider_changed(self):
        slider = self.dockwidget.sender()
        self.dockwidget.timeLabel.setText(str(slider.value()))
        if not self.isSliderPressed:
            self.changeOrtoLayer(slider)

    def slider_moved(self):
        pass

    def slider_pressed(self):
        slider = self.dockwidget.sender()
        self.isSliderPressed = True

    def slider_released(self):
        slider = self.dockwidget.sender()
        self.isSliderPressed = False
        self.changeOrtoLayer(slider)

    def changeOrtoLayer(self, slider):
        # SET DATASOURCE AND RELOAD DATA

        uri = self.makeDataSourceUri(slider.value())
        self.orto.dataProvider().setDataSourceUri(uri)
        self.orto.triggerRepaint()
        # self.orto.dataProvider().reloadData() #QGIS 3.12 and above
        self.orto.setName("Ortofotomapa Archiwalna %d" % slider.value())

    def makeDataSourceUri(self, year):
        serviceUrl = "http://mapy.geoportal.gov.pl/wss/service/img/guest/ORTO_TIME/MapServer/WMSServer"
        return "IgnoreGetFeatureInfoUrl=1&IgnoreGetMapUrl=1&contextualWMSLegend=0&crs=EPSG:2180&format=image/jpeg&layers=Raster&styles=&url=" \
               + serviceUrl + \
               "?TIME=" + \
               str(year) + \
               "-01-01T00%3A00%3A00.000%2B01%3A00"
コード例 #6
0
    def load_raster(self, tif_file, qml_file=None, temporal=False):

        self.temporal = temporal

        bn = Path(tif_file).name

        raster_layer = QgsRasterLayer(str(tif_file), bn)

        # this too? Lead to layer loaded twice.
        # QgsMapLayerRegistry.instance().addMapLayer(raster_layer)

        if not raster_layer.isValid():
            self._show_message(Qgis.Critical, bn)
            return
        """
        The new raster layer is ok and we will continue to work with it in the following
        """
        """
        --- Clean: If necessary remove existing layer ---

        If a raster layer with the above name already exists, it will be removed beforehand.
        The "legend" apparently has nothing to do with the composer legend!
        """

        # for layer in self._iface.legendInterface().layers():    # QGIS 2
        # for layer in self._iface.layerTreeView().selectedLayers():
        """ the complicated way:
        project = QgsProject.instance()
        raster_layers = [rl for rl in project.mapLayers().values() if rl.type() == 1]
        self.out("current project: {} raster layers found.".format(len(raster_layers)))

        for layer in raster_layers:
            #if layer.type() == QgsMapLayer.RasterLayer  and  layer.name() == radolan_layer_name:
            if layer.name() == layer_name:
                self.out('RasterLayer with existing name "{}" found.'.format(layer.name()))
                ''' Ausgabe
                1 Raster
                0 DEU_adm0
                '''
                # print(layerType, layer.name())

                print("  removing layer \"{}\"".format(layer.name()))
                project.removeMapLayer( layer.id() )
        """

        layer_name = Path(tif_file).stem
        self._layer_name = layer_name
        raster_layer.setName(layer_name)

        self._remove_layer_with_same_name(layer_name)

        #
        # Load result raster
        #

        # previous version without insert at specific position (was also ok):
        # self._iface.addRasterLayer(raster_to_load, path.basename(raster_to_load) )

        # Einfaches result_layer.setLayerName('Raster') bringt leider nichts.
        # Unser Rasterlayer kann zuverlässig so bestimmt werden (kann gleich noch einmal gebraucht werden):
        # raster_layer = self._iface.activeLayer()

        self._insert_layer(raster_layer, qml_file, 3)