def initGui(self):
# Create action that will start plugin configuration
self.action = QAction(QIcon(":/plugins/simplesvg/icon.png"), \
"Save as SVG", self.iface.mainWindow())
# connect the action to the run method
QObject.connect(self.action, SIGNAL("activated()"), self.run)
# Add toolbar button and menu item
self.iface.addToolBarIcon(self.action)
self.dlg = SimpleSvgDialog(self.iface)
self.dlg.setFilePath(self.svgFilename)
QObject.connect(self.dlg, SIGNAL("showHelp()"), self.showHelp)
QObject.connect(self.dlg, SIGNAL("accepted()"), self.writeToFile)
QObject.connect(self.dlg, SIGNAL("cbFeaturesInMapcanvasOnlyChanged"),
self.setFeaturesInMapcanvasOnly)
# about
self.aboutAction = QAction(QIcon(":/plugins/simplesvg/help.png"), \
"About", self.iface.mainWindow())
self.aboutAction.setWhatsThis("SimpleSvg Plugin About")
QObject.connect(self.aboutAction, SIGNAL("activated()"), self.about)
# help
self.helpAction = QAction(QIcon(":/plugins/simplesvg/help.png"), \
"Help", self.iface.mainWindow())
self.helpAction.setWhatsThis("SimpleSvg Plugin Help")
QObject.connect(self.helpAction, SIGNAL("activated()"), self.showHelp)
if hasattr(self.iface, "addPluginToWebMenu"):
self.iface.addPluginToWebMenu("&Save as SVG", self.action)
self.iface.addPluginToWebMenu("&Save as SVG", self.aboutAction)
self.iface.addPluginToWebMenu("&Save as SVG", self.helpAction)
else:
self.iface.addPluginToMenu("&Save as SVG", self.action)
self.iface.addPluginToMenu("&Save as SVG", self.aboutAction)
self.iface.addPluginToMenu("&Save as SVG", self.helpAction)
def initGui(self):
# Create action that will start plugin configuration
self.action = QAction(QIcon(":/plugins/simplesvg/icon.png"), \
"Save as SVG", self.iface.mainWindow())
# connect the action to the run method
QObject.connect(self.action, SIGNAL("activated()"), self.run)
# Add toolbar button and menu item
self.iface.addToolBarIcon(self.action)
self.dlg = SimpleSvgDialog(self.iface)
self.dlg.setFilePath(self.svgFilename)
QObject.connect(self.dlg, SIGNAL("showHelp()"), self.showHelp)
QObject.connect(self.dlg, SIGNAL("accepted()"), self.writeToFile)
QObject.connect(self.dlg, SIGNAL("cbFeaturesInMapcanvasOnlyChanged"), self.setFeaturesInMapcanvasOnly)
# about
self.aboutAction = QAction(QIcon(":/plugins/simplesvg/help.png"), \
"About", self.iface.mainWindow())
self.aboutAction.setWhatsThis("SimpleSvg Plugin About")
QObject.connect(self.aboutAction, SIGNAL("activated()"), self.about)
# help
self.helpAction = QAction(QIcon(":/plugins/simplesvg/help.png"), \
"Help", self.iface.mainWindow())
self.helpAction.setWhatsThis("SimpleSvg Plugin Help")
QObject.connect(self.helpAction, SIGNAL("activated()"), self.showHelp)
if hasattr ( self.iface, "addPluginToWebMenu" ):
self.iface.addPluginToWebMenu("&Save as SVG", self.action)
self.iface.addPluginToWebMenu("&Save as SVG", self.aboutAction)
self.iface.addPluginToWebMenu("&Save as SVG", self.helpAction)
else:
self.iface.addPluginToMenu("&Save as SVG", self.action)
self.iface.addPluginToMenu("&Save as SVG", self.aboutAction)
self.iface.addPluginToMenu("&Save as SVG", self.helpAction)
class SimpleSvg:
MSG_BOX_TITLE = "QGIS SimpleSvg Plugin "
def __init__(self, iface):
# Save reference to the QGIS interface
self.iface = iface
self.svgFilename = QSettings().value('/simplesvg/lastfile', '')
self.svgType = SVG_TYPE_PATH
self.strokeLineJoin = 'round' # miter, round, bevel
# normal usage: current scale, only the features which touch current mapcanvas
# if setting this false, ALL features will be taken from the dataprovider
# and rendered as vectors, NOTE: not working for raster layers !
self.featuresInMapcanvasOnly = True
def initGui(self):
# Create action that will start plugin configuration
self.action = QAction(QIcon(":/plugins/simplesvg/icon.png"), \
"Save as SVG", self.iface.mainWindow())
# connect the action to the run method
QObject.connect(self.action, SIGNAL("activated()"), self.run)
# Add toolbar button and menu item
self.iface.addToolBarIcon(self.action)
self.dlg = SimpleSvgDialog(self.iface)
self.dlg.setFilePath(self.svgFilename)
QObject.connect(self.dlg, SIGNAL("showHelp()"), self.showHelp)
QObject.connect(self.dlg, SIGNAL("accepted()"), self.writeToFile)
QObject.connect(self.dlg, SIGNAL("cbFeaturesInMapcanvasOnlyChanged"), self.setFeaturesInMapcanvasOnly)
# about
self.aboutAction = QAction(QIcon(":/plugins/simplesvg/help.png"), \
"About", self.iface.mainWindow())
self.aboutAction.setWhatsThis("SimpleSvg Plugin About")
QObject.connect(self.aboutAction, SIGNAL("activated()"), self.about)
# help
self.helpAction = QAction(QIcon(":/plugins/simplesvg/help.png"), \
"Help", self.iface.mainWindow())
self.helpAction.setWhatsThis("SimpleSvg Plugin Help")
QObject.connect(self.helpAction, SIGNAL("activated()"), self.showHelp)
if hasattr ( self.iface, "addPluginToWebMenu" ):
self.iface.addPluginToWebMenu("&Save as SVG", self.action)
self.iface.addPluginToWebMenu("&Save as SVG", self.aboutAction)
self.iface.addPluginToWebMenu("&Save as SVG", self.helpAction)
else:
self.iface.addPluginToMenu("&Save as SVG", self.action)
self.iface.addPluginToMenu("&Save as SVG", self.aboutAction)
self.iface.addPluginToMenu("&Save as SVG", self.helpAction)
def setFeaturesInMapcanvasOnly(self, checked):
if not checked:
QMessageBox.information(self.dlg, "Warning", "Be carefull: unchecking this, means QGIS is going to fetch ALL objects from your data.\nHandle with care for big datasets.")
self.featuresInMapcanvasOnly = checked
def showHelp(self):
docFile = os.path.join(os.path.dirname(__file__), "docs","index.html")
QDesktopServices.openUrl( QUrl("file:" + docFile) )
def writeToFile(self):
self.svgFilename = self.dlg.getFilePath()
# save this filename in settings for later
QSettings().setValue('/simplesvg/lastfile', self.svgFilename)
output = self.writeSVG()
file = open(self.svgFilename, "w")
#print output
for line in output:
#print '%s - %s' % (type(line),line)
file.write(line.encode('utf-8'))
file.close()
QMessageBox.information(self.iface.mainWindow(), \
"SimpleSvg Plugin", "Finished writing to svg")
def about(self):
try:
infoString = QString("Written by Richard Duivenvoorde\nEmail - [email protected]\n")
infoString = infoString.append("Company - http://www.webmapper.net\n")
infoString = infoString.append("Source: http://github.com/rduivenvoorde/simplesvg/")
except NameError:
infoString = "Written by Richard Duivenvoorde\nEmail - [email protected]\n"
infoString += "Company - http://www.webmapper.net\n"
infoString += "Source: http://github.com/rduivenvoorde/simplesvg/"
QMessageBox.information(self.iface.mainWindow(), \
"SimpleSvg Plugin About", infoString)
def unload(self):
# Remove the plugin menu item and icon
if hasattr ( self.iface, "addPluginToWebMenu" ):
self.iface.removePluginWebMenu("&Save as SVG",self.action)
self.iface.removePluginWebMenu("&Save as SVG",self.helpAction)
self.iface.removePluginWebMenu("&Save as SVG",self.aboutAction)
else:
self.iface.removePluginMenu("&Save as SVG",self.action)
self.iface.removePluginMenu("&Save as SVG",self.helpAction)
self.iface.removePluginMenu("&Save as SVG",self.aboutAction)
self.iface.removeToolBarIcon(self.action)
QObject.disconnect(self.aboutAction, SIGNAL("activated()"), self.about)
QObject.disconnect(self.helpAction, SIGNAL("activated()"), self.showHelp)
QObject.disconnect(self.action, SIGNAL("activated()"), self.run)
QObject.disconnect(self.dlg, SIGNAL("accepted()"), self.writeToFile)
# run method that performs all the real work
def run(self):
self.dlg.show()
def writeSVG(self):
# determine extent for later use (only write geoms that are at least partially contained)
self.currentExtent = self.iface.mapCanvas().extent()
w=self.iface.mapCanvas().size().width()
h=self.iface.mapCanvas().size().height()
# keep the current extent as a Geometry to be able to do some 'contains' tests later
self.extentAsPoly = QgsGeometry();
self.extentAsPoly = QgsGeometry.fromRect(self.currentExtent);
svg = [u'<?xml version="1.0" standalone="no"?>\n']
svg.append(u'<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n')
svg.append(u'<svg xmlns="http://www.w3.org/2000/svg" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox = "0 0 '+str(w)+' '+str(h)+'" version = "1.1">\n')
svg.append(u'<!-- svg generated using QGIS www.qgis.org -->\n')
# for all visible layers, from bottom to top (-1)
for i in range (self.iface.mapCanvas().layerCount()-1, -1, -1):
layer = self.iface.mapCanvas().layer(i)
if layer.type()==0: # vector
if self.isRendererV2(layer):
#QMessageBox.information(self.iface.mainWindow(), "Warning", "New Symbology layer found for layer '"+layer.name()+"'\n\nThe plugin cannot handle layer(s) which use 'New Symbology' yet.\n\nThis layer will be ignored in export.\n\nPlease change symbology of these layer(s) to 'Old Symbology' if you want this layer in svg.")
#pass
svg.extend(self.writeVectorLayer(layer, False))
else: # old symbology
svg.extend(self.writeVectorLayer(layer, False))
elif layer.type()==1: # raster
svg.extend(self.writeRaster(layer))
# layers like OpenLayers/OpenStreetmap/Google are plugin layer: write as raster for now
elif layer.type()==2: # plugin layer
svg.extend(self.writeRaster(layer))
# now layers with labels
for i in range (self.iface.mapCanvas().layerCount()-1, -1, -1):
layer = self.iface.mapCanvas().layer(i)
if layer.type()==0: # vector
lblSettings = QgsPalLayerSettings()
lblSettings.readFromLayer( layer )
#TODO: fix this if layer.type()==0 and layer.hasLabelsEnabled(): # only vectors have labels
if layer.type()==0 and lblSettings.enabled: # only vectors have labels
svg.extend(self.writeVectorLayer(layer, True))
# qgis extent, usable for clipping in Inkscape
svg.extend(self.writeExtent())
svg.append(u'</svg>')
return svg
def isRendererV2(self, layer):
return (layer.type()==0 and hasattr(layer, 'isUsingRendererV2') and layer.isUsingRendererV2()) or (layer.type()==0 and not hasattr(layer, 'isUsingRendererV2') and ('rendererV2' in dir(layer)))
def isRendererV2SIP2(self, layer):
return (layer.type()==0 and not hasattr(layer, 'isUsingRendererV2') and ('rendererV2' in dir(layer)))
def writeVectorLayer(self, layer, labels=False):
# in case of 'on the fly projection'
# AND
# different crs's for mapCanvas/project and layer we have to reproject stuff
if hasattr(self.iface.mapCanvas().mapRenderer(), "destinationSrs"):
# QGIS < 2.0
destinationCrs = self.iface.mapCanvas().mapRenderer().destinationSrs()
layerCrs = layer.srs()
else:
destinationCrs = self.iface.mapCanvas().mapRenderer().destinationCrs()
layerCrs = layer.crs()
if self.featuresInMapcanvasOnly:
mapCanvasExtent = self.iface.mapCanvas().extent()
else:
mapCanvasExtent = layer.extent()
#print 'destination crs: %s:' % destinationCrs.toProj4()
#print 'layer crs: %s:' % layerCrs.toProj4()
doCrsTransform = False
if not destinationCrs == layerCrs:
# we have to transform the mapCanvasExtent to the data/layer Crs to be able
# to retrieve the features from the data provider
# but ONLY if we are working with on the fly projection
# (because in that case we just 'fly' to the raw coordinates from data)
if self.iface.mapCanvas().hasCrsTransformEnabled():
# only if we have 'on te fly transformation' enabled
# AND the mapCanvasExtent is the real mapcanvas extent (note: if we
# are going to write ALL features, then mapCanvasExtent is actually the layer extent)
if self.featuresInMapcanvasOnly:
crsTransform = QgsCoordinateTransform(destinationCrs, layerCrs)
mapCanvasExtent = crsTransform.transformBoundingBox(mapCanvasExtent)
# we have to have a transformer to do the transformation of the geometries
# to the mapcanvas crs ourselves:
crsTransform = QgsCoordinateTransform(layerCrs, destinationCrs)
doCrsTransform = True
lblSettings = QgsPalLayerSettings()
lblSettings.readFromLayer( layer )
# select features within current extent,
# with ALL attributes, WITHIN currentExtent, WITH geom, AND using Intersect instead of bbox
# we are going to group all features by their symbol so in svg we can group them in a <g> tag with the symbol style
if self.isRendererV2(layer):
if hasattr(layer, 'isUsingRendererV2'):
# For QGis 1.8 API, new symbology
provider = layer.dataProvider();
provider.select(provider.attributeIndexes(), mapCanvasExtent, True, True)
else:
# For QGis 2.0 cleaned-up API
provider = layer.getFeatures( QgsFeatureRequest().setFilterRect(mapCanvasExtent))
renderer = layer.rendererV2()
if str(renderer.type()) not in ("singleSymbol", "categorizedSymbol", "graduatedSymbol"):
QMessageBox.information(self.iface.mainWindow(), "Warning", "New Symbology layer found for layer '"+layer.name()+"'\n\nThis layer uses a Renderer/Style which cannot be used with this plugin.\n\nThis layer will be ignored in export.")
return ""
else:
# For QGis <= 1.8 API, old symbology
provider = layer.dataProvider();
provider.select(provider.attributeIndexes(), mapCanvasExtent, True, True)
renderer = layer.renderer()
symbols = renderer.symbols()
symbolFeatureMap = dict.fromkeys(symbols, [])
id=self.sanitizeStr(unicode(layer.name()).lower())
if labels:
id=id+'_labels'
svg = [u'<g id="'+id+'" inkscape:groupmode="layer" inkscape:label="'+id+'">\n']; # start of layer g-element
# now iterate through each feature and group by feature
f = QgsFeature();
feature = None
#print "1 symbols holds %s symbols" % len(symbols)
while provider.nextFeature(f):
feature = QgsFeature(f)
geom = feature.geometry()
if hasattr(layer, "srs"):
# QGIS < 2.0
layerCrs = layer.srs()
else:
layerCrs = layer.crs()
if doCrsTransform:
if hasattr(geom, "transform"):
geom.transform(crsTransform)
else:
QMessageBox.warning(self.iface.mainWindow(), self.MSG_BOX_TITLE, ("Cannot crs-transform geometry in your QGIS version ...\n" "Only QGIS version 1.5 and above can transform geometries on the fly\n" "As a workaround, you can try to save the layer in the destination crs (eg as shapefile) and reload that layer...\n"), QMessageBox.Ok, QMessageBox.Ok)
break
symbol = self.symbolForFeature(layer, feature)
#print "feature: %s symbol: %s rgb: %s %s %s" % (feature, symbol, symbol.color().red(), symbol.color().green(), symbol.color().blue())
# Continous Color does NOT have all symbols, but ONLY start and end color
# that's why we do some extra stuff here...
# ONLY needed for Old Symbology (which have 'name()' and not 'type()')
if hasattr(renderer, 'name') and renderer.name() == "Continuous Color":
symbols.append(symbol)
if symbol in symbolFeatureMap:
symbolFeatureMap[symbol]=[feature]
else:
symbolFeatureMap.update({symbol:[feature]})
else:
if not symbol in symbolFeatureMap or len(symbolFeatureMap[symbol])==0:
symbolFeatureMap[symbol]=[feature]
else:
symbolFeatureMap[symbol].append(feature)
# now iterate over symbols IF there are any features in this view from this layer
if feature != None:
id=id+'_'
i=0
#print "2 symbols holds %s symbols" % len(symbols)
for symbol in symbols:
if self.isRendererV2(layer):
sym = self.symbolV2(feature, symbol)
else:
sym = self.symbol(feature, symbol)
# start of symbol g-element, holds colors and stroke etc
if not labels:
fill = ''
if sym.has_key('fill'):
fill = 'fill="' + sym['fill'] + '"'
svg.append(u'<g stroke="' + sym['stroke'] + '" '+ fill + ' stroke-linejoin="' + self.strokeLineJoin + '" stroke-width="' + sym['stroke-width'] +'">\n')
else:
# TODO fix this
if False:
lc = layer.label().labelAttributes().color()
lblColor = u'rgb(%s,%s,%s)' % (lc.red(), lc.green(), lc.blue())
else: # labels all black for now...
lblColor = u'rgb(0,0,0)'
svg.append(u'<g stroke="none" fill="'+lblColor+'">\n')
for feature in symbolFeatureMap[symbol]:
i=i+1
# labeltxt is used both for the real labels, AND for the inkscape-label attributes of g and txt elements
# TODO fix this
if lblSettings.enabled:
labeltxt = self.sanitizeStr(feature[lblSettings.fieldName])
else:
#labeltxt = self.sanitizeStr(layer.label().fieldValue(0, feature)) # only first field for now.
#labeltxt = self.sanitizeStr(unicode(feature.fields().field(0)))
labeltxt = self.sanitizeStr('')
if not labels:
svg.extend(self.writeFeature(feature, id+str(i), labeltxt))
if labels:
geom = feature.geometry().centroid()
# centroid-method returns a NON-transformed centroid
if doCrsTransform:
if hasattr(geom, "transform"):
geom.transform(crsTransform)
else:
QMessageBox.warning(self.iface.mainWindow(), self.MSG_BOX_TITLE, ("Cannot crs-transform geometry in your QGIS version ...\n" "Only QGIS version 1.5 and above can transform geometries on the fly\n" "As a workaround, you can try to save the layer in the destination crs (eg as shapefile) and reload that layer...\n"), QMessageBox.Ok, QMessageBox.Ok)
break
svg.extend(self.label2svg(geom.asPoint(), id+str(i), self.symbolForFeature(layer, feature), labeltxt))
svg.append(u'</g>\n'); # end of symbol
svg.append(u'</g>\n'); # end of layer
return svg
def symbol(self, feature, symbol):
sym={}
sc = symbol.color()
sym['stroke'] = u'rgb(%s,%s,%s)' % (sc.red(), sc.green(), sc.blue())
# fill color: only non line features have fill color, lines have 'none'
geom = feature.geometry()
if geom.wkbType() == QGis.WKBLineString or geom.wkbType() == QGis.WKBMultiLineString:
sym['fill'] = u'none'
else:
f = symbol.fillColor()
sym['fill'] = u'rgb(%s,%s,%s)' % (f.red(), f.green(), f.blue())
# pen: in QT pen can be 0
if symbol.pen().width() < 1:
sym['stroke-width'] = u'0.5'
else:
sym['stroke-width'] = unicode(symbol.pen().width())
return sym
def symbolV2(self, feature, symbol):
#print '##### symbol: %s, symbollayercount: %s' % (symbol, symbol.symbolLayerCount())
sym={}
if symbol.symbolLayerCount() > 1:
QMessageBox.information(self.iface.mainWindow(), "Warning", "Layer '"+layer.name()+"' uses New Symbology, and styles with more the one Symbol Layer, only the first one will be use.")
sl = symbol.symbolLayer(0)
slprops = sl.properties()
#print "symbollayer properties: %s" % slprops
# region/polgyons have: color_border / style_border / offset / style / color / width_border
# {PyQt4.QtCore.QString(u'color_border'): PyQt4.QtCore.QString(u'0,0,0,255'), PyQt4.QtCore.QString(u'style_border'): PyQt4.QtCore.QString(u'solid'), PyQt4.QtCore.QString(u'offset'): PyQt4.QtCore.QString(u'0,0'), PyQt4.QtCore.QString(u'style'): PyQt4.QtCore.QString(u'solid'), PyQt4.QtCore.QString(u'color'): PyQt4.QtCore.QString(u'0,0,255,255'), PyQt4.QtCore.QString(u'width_border'): PyQt4.QtCore.QString(u'0.26')}
# markers/points have : color_border / offset / size / color / name / angle:
# {PyQt4.QtCore.QString(u'color_border'): PyQt4.QtCore.QString(u'0,0,0,255'), PyQt4.QtCore.QString(u'offset'): PyQt4.QtCore.QString(u'0,0'), PyQt4.QtCore.QString(u'size'): PyQt4.QtCore.QString(u'2'), PyQt4.QtCore.QString(u'color'): PyQt4.QtCore.QString(u'255,0,0,255'), PyQt4.QtCore.QString(u'name'): PyQt4.QtCore.QString(u'circle'), PyQt4.QtCore.QString(u'angle'): PyQt4.QtCore.QString(u'0')}
# lines have : color / offset / penstyle / width / use_custom_dash / joinstyle / customdash / capstyle:
# {PyQt4.QtCore.QString(u'color'): PyQt4.QtCore.QString(u'255,255,0,255'), PyQt4.QtCore.QString(u'offset'): PyQt4.QtCore.QString(u'0'), PyQt4.QtCore.QString(u'penstyle'): PyQt4.QtCore.QString(u'solid'), PyQt4.QtCore.QString(u'width'): PyQt4.QtCore.QString(u'0.5'), PyQt4.QtCore.QString(u'use_custom_dash'): PyQt4.QtCore.QString(u'0'), PyQt4.QtCore.QString(u'joinstyle'): PyQt4.QtCore.QString(u'bevel'), PyQt4.QtCore.QString(u'customdash'): PyQt4.QtCore.QString(u'5;2'), PyQt4.QtCore.QString(u'capstyle'): PyQt4.QtCore.QString(u'square')}
try:
strokekey = QString(u'color_border')
colorkey = QString(u'color')
stylekey = QString(u'style')
width_borderkey = QString(u'width_border')
widthkey = QString(u'width')
except NameError:
strokekey = u'color_border'
colorkey = u'color'
stylekey = u'style'
width_borderkey = u'width_border'
widthkey = u'width'
if slprops.has_key(strokekey):
stroke = unicode(slprops[strokekey])
sym['stroke'] = u'rgb(%s)' % (stroke[:stroke.rfind(',')])
else:
sym['stroke'] = u'none'
# fill color: only non line features have fill color, lines have 'none'
geom = feature.geometry()
if slprops.has_key(colorkey):
fill = unicode(slprops[colorkey])
if geom.wkbType() == QGis.WKBLineString or geom.wkbType() == QGis.WKBMultiLineString:
sym['stroke'] = u'rgb(%s)' % (fill[:fill.rfind(',')])
# points have fill and stroke
sym['fill'] = u'rgb(%s)' % (fill[:fill.rfind(',')])
# if feature is line OR when there is no brush: set fill to none
if geom.wkbType() == QGis.WKBLineString or geom.wkbType() == QGis.WKBMultiLineString or (slprops.has_key(stylekey) and slprops[stylekey] == 'no'):
sym['fill'] = u'none'
# pen: in QT pen can be 0
if slprops.has_key(width_borderkey):
sym['stroke-width'] = unicode(slprops[width_borderkey])
elif slprops.has_key(widthkey):
sym['stroke-width'] = unicode(slprops[widthkey])
else:
sym['stroke-width'] = u'0.26'
#print sym
return sym
def writeExtent(self):
svg = [u'<!-- QGIS extent for clipping, eg in Inkscape -->\n<g id="qgisviewbox" inkscape:groupmode="layer" inkscape:label="qgisviewbox" stroke="rgb(255,0,0)" stroke-width="1" fill="none" >\n']
for ring in self.extentAsPoly.asPolygon():
svg.append(u'<path d="M ')
first = True
for point in ring:
pixpoint = self.w2p(point.x(), point.y(), self.iface.mapCanvas().mapUnitsPerPixel(), self.currentExtent.xMinimum(), self.currentExtent.yMaximum())
if not first:
svg.append(u'L ')
svg.append((unicode(pixpoint[0]) + ',' + unicode(pixpoint[1]) + ' '))
first = False
svg.append(u'" />\n')
svg.append(u'</g>')
return svg
def writeRaster(self, layer):
# hide all layers except 'layer' and save as png image in current directory
# TODO? maybe inline it in svg?
# save visibility of layers
visibleList=self.iface.mapCanvas().layers()
legend = self.iface.legendInterface()
# set all layers invisible EXCEPT layer
for lyr in visibleList:
if lyr != layer:
legend.setLayerVisible(lyr, False)
lyrName = unicode(layer.name())
imgName = lyrName+'.png'
try:
imgPath= self.svgFilename[:self.svgFilename.rfind('/')+1]
except NameError:
imgPath= self.svgFilename[:self.svgFilename.rfind('/')+1]
# save image next to svg but put it in Image tag only the local filename
self.iface.mapCanvas().saveAsImage(imgPath+imgName)
# <image y="-7.7685061" x="27.115078" id="image3890" xlink:href="nl.png" />
svg = [u'<g id="'+lyrName+'" inkscape:groupmode="layer" inkscape:label="'+lyrName+'">\n'];
#svg.append('<image y="0" x="0" xlink:href="'+imgPath+imgName+'" />')
svg.append(u'<image y="0" x="0" xlink:href="'+imgName+'" />')
svg.append(u'</g>') # end of raster layer
# now set earlier visible layers back to visible
for lyr in visibleList:
legend.setLayerVisible(lyr, True)
return svg
def label2svg(self, point, fid, symbol, labelTxt):
# <g> <text x="262.08704" y="523.79077">abc</text> </g>
#point = feature.geometry().centroid().asPoint()
xy = self.w2p(point.x(), point.y(), self.iface.mapCanvas().mapUnitsPerPixel(), self.currentExtent.xMinimum(), self.currentExtent.yMaximum())
inkscapeLbl = ''
if len(labelTxt)>0:
inkscapeLbl = 'inkscape:label="'+unicode(labelTxt+'_lbl')+'"'
svg = [u'<text id="'+fid+'" x="'+unicode(xy[0])+'" y="'+unicode(xy[1])+'" '+inkscapeLbl+'>'+unicode(labelTxt)+'</text>\n']
return svg
def sanitizeStr(self, string):
# TODO: find the right way to do this
return unicode(string).replace(' ','_').replace('/','_').replace(',','_').replace('.','_')
def writeFeature(self, feature, fid, labelTxt):
svg = []
# <g>-element set's style attributes
inkscapeLbl = ''
if len(labelTxt)>0:
inkscapeLbl = 'inkscape:label="'+unicode(labelTxt)+'"'
svg.append(u'<g id="' + fid + '" '+inkscapeLbl+'>\n')
geom=feature.geometry()
currentExtent=self.currentExtent
if geom.wkbType() == QGis.WKBPoint: # 1 = WKBPoint
svg.extend(self.point2svg(feature, currentExtent))
if geom.wkbType() == QGis.WKBPolygon: # 3 = WKBTYPE.WKBPolygon:
polygon = geom.asPolygon() # returns a list
svg.extend(self.polygon2svg(feature, polygon, currentExtent))
if geom.wkbType() == QGis.WKBMultiPolygon: # 6 = WKBTYPE.WKBMultiPolygon:
multipolygon = geom.asMultiPolygon() # returns a list
for polygon in multipolygon:
svg.extend(self.polygon2svg(feature, polygon, currentExtent))
if geom.wkbType() == QGis.WKBLineString: # 6 = WKBTYPE.WKBLineString:
line = geom.asPolyline() # returns a list of points
svg.extend(self.line2svg(feature, line, currentExtent))
if geom.wkbType() == QGis.WKBMultiLineString: # 6 = WKBTYPE.WKBLineString:
multiline = geom.asMultiPolyline() # returns a list of points
for line in multiline:
svg.extend(self.line2svg(feature, line, currentExtent))
svg.append(u'</g>\n');
return svg
def point2svg(self, feature, currentExtent):
point = feature.geometry().asPoint()
xy = self.w2p(point.x(), point.y(), self.iface.mapCanvas().mapUnitsPerPixel(), self.currentExtent.xMinimum(), self.currentExtent.yMaximum())
# TODO take current extent into account
svg = ['<circle cx="'+unicode(xy[0])+'" cy="'+unicode(xy[1])+'" r="5" />']
return svg
def symbolForFeature(self, layer, feature):
if self.isRendererV2(layer):
return layer.rendererV2().symbolForFeature(feature)
else:
# symbolForFeatures seems not to work for Old Symbology?? Do it ourselves:
# OLD symbolisation:
# Graduated Symbol: every symbol has BOTH upper and lower bound/value
# Unique Value: every symbol has BOTH upper and lower value
# Continues Color: HAS lower(==value) but NO upper value, BUT has just two symbols: MIN and MAX color, see http://doc.qgis.org/head/qgscontinuouscolorrenderer_8cpp-source.html
# Single Simbol: just one symbol, return it
renderer = layer.renderer()
#print "renderer.name(): %s" % renderer.name()
default = None
if renderer.name() == "Single Symbol": # there is just one symbol: return it
return renderer.symbols()[0]
if renderer.name() == "Continuous Color":
#pass # already done, should not come here !!
minSymbol = renderer.symbols()[0]
minValue = (minSymbol.lowerValue()).toDouble()[0] # we know Continuous Color only works with numeric attributes
minRed = minSymbol.fillColor().red()
minGreen = minSymbol.fillColor().green()
minBlue = minSymbol.fillColor().blue()
maxSymbol = renderer.symbols()[1]
maxValue = (maxSymbol.lowerValue()).toDouble()[0] # we know Continuous Color only works with numeric attributes
maxRed = maxSymbol.fillColor().red()
maxGreen = maxSymbol.fillColor().green()
maxBlue = maxSymbol.fillColor().blue()
# create new symbol and set RGB according to calculation in http://doc.qgis.org/head/qgscontinuouscolorrenderer_8cpp-source.html
symbol = QgsSymbol(minSymbol) # copy
value = (feature.attributeMap()[renderer.classificationAttributes()[0]]).toDouble()[0] # we know Continuous Color only works with numeric attributes
if (maxValue - minValue) <> 0:
red = int ( maxRed * ( value - minValue ) / ( maxValue - minValue ) + minRed * ( maxValue - value ) / ( maxValue - minValue ) )
green = int ( maxGreen * ( value - minValue ) / ( maxValue - minValue ) + minGreen * ( maxValue - value ) / ( maxValue - minValue ) )
blue = int ( maxBlue * ( value - minValue ) / ( maxValue - minValue ) + minBlue * ( maxValue - value ) / ( maxValue - minValue ) )
else:
red = minRed
green = minGreen
blue = minBlue
newFillColor = QColor(red, green, blue)
symbol.setFillColor(newFillColor)
if renderer.drawPolygonOutline():
# always black
color = QColor(0,0,0)
symbol.setColor(color)
else:
symbol.setColor(newFillColor)
return symbol
# else loop over symbols to find the current symbol for this feature
# value can be string or numbers...
value = (feature.attributeMap()[renderer.classificationAttributes()[0]]).toString()
for symbol in renderer.symbols():
lower = symbol.lowerValue()
upper = symbol.upperValue()
#print "lower: %s upper: %s value: %s notlower %s, notupper %s, value==lower %s, value=upper %s, str(value)[0].isdigit() %s" % (lower, upper, value, (not lower), (not upper), (value == lower), (value == upper), str(value)[0].isdigit())
if not lower and not upper:
# 'default value' given for default in Unique Value
default = symbol
# Unique Value symbols have the value in both upper and lower value (if values are string!)
elif (value == lower and value == upper):
return symbol
# Unique Value symbols for numbers do not have an upper
elif str(value)[0].isdigit() and not upper and float(value) == float(symbol.lowerValue()):
return symbol
# Graduated Classifications have lower AND uppervalues AND values are always numbers
elif str(value)[0].isdigit() and upper and lower and (float(value) >= float(symbol.lowerValue()) and float(value) <= float(symbol.upperValue())):
#print "Graduated Classification: %s between %s and %s " % (value, symbol.lowerValue(), symbol.upperValue())
return symbol
#else:
# print "NEXT..."
#print "RETURNING DEFAULT!!"
return default
def line2svg(self, feature, line, currentExtent):
#print "calling line2svg..."
linesvg = []
svg = u''
if self.svgType == SVG_TYPE_PATH:
svg += '<path d="M '
else: # SVG_TYPE_SHAPE
svg += '<polyline points="'
lastPixel=[0,0]
insideExtent = False
coordCount = 0
for point in line:
if self.extentAsPoly.contains(point) or not self.featuresInMapcanvasOnly:
insideExtent = True
pixpoint = self.w2p(point.x(), point.y(), self.iface.mapCanvas().mapUnitsPerPixel(), currentExtent.xMinimum(), currentExtent.yMaximum())
#print pixpoint
if lastPixel<>pixpoint:
coordCount = coordCount +1
if self.svgType==SVG_TYPE_PATH and coordCount>1:
svg += 'L '
svg += (str(pixpoint[0]) + ',' + str(pixpoint[1]) + ' ')
lastPixel = pixpoint
# if at least ONE pixel of this ring is in current view extent, return the area-string, otherwise return an empty string
if not insideExtent:
#print "RING FULLY OUTSIDE EXTENT: %s " % ring
None
else:
# check if there are more then 2 coords: very small polygons on current map can have coordinates
# which if rounded to pixels all come to the same pixel, resulting in just ONE x,y coordinate
# we skip these
if coordCount < 2:
#print "Line contains just one pixel coordinate pair: skipping"
None
else:
svg += '"/>\n'
linesvg.append(svg)
return linesvg
# SHAPE-svg
# <polygon stroke="rgb(0,0,0)" fill="rgb(234,102,228)" stroke-width="1" points="439,238 445,230 ... 439,238"/>
# or
# <polygon points="439,238 445,230 ... 439,238"/>
# PATH-svg
# <g stroke="rgb(0,0,0)" fill="rgb(234,102,228)" stroke-width="1" ><path d="M 439 238 L 445 220 ... L 439 238" /> </g>
def polygon2svg(self, feature, polygon, currentExtent):
#print "calling polygon2svg..."
polygonsvg = ['']
for ring in polygon:
svg = ''
if self.svgType == SVG_TYPE_PATH:
svg += '<path d="M '
else: # SVG_TYPE_SHAPE
svg = '<polygon points="'
lastPixel=[0,0]
insideExtent = False
coordCount = 0
for point in ring:
if self.extentAsPoly.contains(point) or not self.featuresInMapcanvasOnly:
insideExtent = True
pixpoint = self.w2p(point.x(), point.y(), self.iface.mapCanvas().mapUnitsPerPixel(), currentExtent.xMinimum(), currentExtent.yMaximum())
if lastPixel<>pixpoint:
coordCount = coordCount +1
if self.svgType==SVG_TYPE_PATH and coordCount>1:
svg += 'L '
svg += (str(pixpoint[0]) + ',' + str(pixpoint[1]) + ' ')
lastPixel = pixpoint
# if at least ONE pixel of this ring is in current view extent, return the area-string, otherwise return an empty string
if not insideExtent:
#print "RING FULLY OUTSIDE EXTENT: %s " % ring
None
else:
# check if there are more then 2 coords: very small polygons on current map can have coordinates
# which if rounded to pixels all come to the same pixel, resulting in just ONE x,y coordinate
# we skip these
if coordCount < 2:
#print "Ring contains just one pixel coordinate pair: skipping"
None
else:
svg += '" />\n'
polygonsvg.append(svg)
return polygonsvg
# NOT WORKING ????
# pixpoint = m2p.transform(point.x(), point.y())
# print m2p.transform(point.x(), point.y())
# so for now: a custom 'world2pixel' method
def w2p(self, x, y, mupp, minx, maxy):
pixX = (x - minx)/mupp
pixY = (y - maxy)/mupp
return [int(pixX), int(-pixY)]
class SimpleSvg:
MSG_BOX_TITLE = "QGIS SimpleSvg Plugin "
def __init__(self, iface):
# Save reference to the QGIS interface
self.iface = iface
self.svgFilename = QSettings().value('/simplesvg/lastfile', '')
self.svgType = SVG_TYPE_PATH
self.strokeLineJoin = 'round' # miter, round, bevel
# normal usage: current scale, only the features which touch current mapcanvas
# if setting this false, ALL features will be taken from the dataprovider
# and rendered as vectors, NOTE: not working for raster layers !
self.featuresInMapcanvasOnly = True
def initGui(self):
# Create action that will start plugin configuration
self.action = QAction(QIcon(":/plugins/simplesvg/icon.png"), \
"Save as SVG", self.iface.mainWindow())
# connect the action to the run method
QObject.connect(self.action, SIGNAL("activated()"), self.run)
# Add toolbar button and menu item
self.iface.addToolBarIcon(self.action)
self.dlg = SimpleSvgDialog(self.iface)
self.dlg.setFilePath(self.svgFilename)
QObject.connect(self.dlg, SIGNAL("showHelp()"), self.showHelp)
QObject.connect(self.dlg, SIGNAL("accepted()"), self.writeToFile)
QObject.connect(self.dlg, SIGNAL("cbFeaturesInMapcanvasOnlyChanged"),
self.setFeaturesInMapcanvasOnly)
# about
self.aboutAction = QAction(QIcon(":/plugins/simplesvg/help.png"), \
"About", self.iface.mainWindow())
self.aboutAction.setWhatsThis("SimpleSvg Plugin About")
QObject.connect(self.aboutAction, SIGNAL("activated()"), self.about)
# help
self.helpAction = QAction(QIcon(":/plugins/simplesvg/help.png"), \
"Help", self.iface.mainWindow())
self.helpAction.setWhatsThis("SimpleSvg Plugin Help")
QObject.connect(self.helpAction, SIGNAL("activated()"), self.showHelp)
if hasattr(self.iface, "addPluginToWebMenu"):
self.iface.addPluginToWebMenu("&Save as SVG", self.action)
self.iface.addPluginToWebMenu("&Save as SVG", self.aboutAction)
self.iface.addPluginToWebMenu("&Save as SVG", self.helpAction)
else:
self.iface.addPluginToMenu("&Save as SVG", self.action)
self.iface.addPluginToMenu("&Save as SVG", self.aboutAction)
self.iface.addPluginToMenu("&Save as SVG", self.helpAction)
def setFeaturesInMapcanvasOnly(self, checked):
if not checked:
QMessageBox.information(
self.dlg, "Warning",
"Be carefull: unchecking this, means QGIS is going to fetch ALL objects from your data.\nHandle with care for big datasets."
)
self.featuresInMapcanvasOnly = checked
def showHelp(self):
docFile = os.path.join(os.path.dirname(__file__), "docs", "index.html")
QDesktopServices.openUrl(QUrl("file:" + docFile))
def writeToFile(self):
self.svgFilename = self.dlg.getFilePath()
# save this filename in settings for later
QSettings().setValue('/simplesvg/lastfile', self.svgFilename)
output = self.writeSVG()
file = open(self.svgFilename, "w")
#print output
for line in output:
#print '%s - %s' % (type(line),line)
file.write(line.encode('utf-8'))
file.close()
QMessageBox.information(self.iface.mainWindow(), \
"SimpleSvg Plugin", "Finished writing to svg")
def about(self):
try:
infoString = QString(
"Written by Richard Duivenvoorde\nEmail - [email protected]\n")
infoString = infoString.append(
"Company - http://www.webmapper.net\n")
infoString = infoString.append(
"Source: http://github.com/rduivenvoorde/simplesvg/")
except NameError:
infoString = "Written by Richard Duivenvoorde\nEmail - [email protected]\n"
infoString += "Company - http://www.webmapper.net\n"
infoString += "Source: http://github.com/rduivenvoorde/simplesvg/"
QMessageBox.information(self.iface.mainWindow(), \
"SimpleSvg Plugin About", infoString)
def unload(self):
# Remove the plugin menu item and icon
if hasattr(self.iface, "addPluginToWebMenu"):
self.iface.removePluginWebMenu("&Save as SVG", self.action)
self.iface.removePluginWebMenu("&Save as SVG", self.helpAction)
self.iface.removePluginWebMenu("&Save as SVG", self.aboutAction)
else:
self.iface.removePluginMenu("&Save as SVG", self.action)
self.iface.removePluginMenu("&Save as SVG", self.helpAction)
self.iface.removePluginMenu("&Save as SVG", self.aboutAction)
self.iface.removeToolBarIcon(self.action)
QObject.disconnect(self.aboutAction, SIGNAL("activated()"), self.about)
QObject.disconnect(self.helpAction, SIGNAL("activated()"),
self.showHelp)
QObject.disconnect(self.action, SIGNAL("activated()"), self.run)
QObject.disconnect(self.dlg, SIGNAL("accepted()"), self.writeToFile)
# run method that performs all the real work
def run(self):
self.dlg.show()
def writeSVG(self):
# determine extent for later use (only write geoms that are at least partially contained)
self.currentExtent = self.iface.mapCanvas().extent()
w = self.iface.mapCanvas().size().width()
h = self.iface.mapCanvas().size().height()
# keep the current extent as a Geometry to be able to do some 'contains' tests later
self.extentAsPoly = QgsGeometry()
self.extentAsPoly = QgsGeometry.fromRect(self.currentExtent)
svg = [u'<?xml version="1.0" standalone="no"?>\n']
svg.append(
u'<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n'
)
svg.append(
u'<svg xmlns="http://www.w3.org/2000/svg" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox = "0 0 '
+ str(w) + ' ' + str(h) + '" version = "1.1">\n')
svg.append(u'<!-- svg generated using QGIS www.qgis.org -->\n')
# for all visible layers, from bottom to top (-1)
for i in range(self.iface.mapCanvas().layerCount() - 1, -1, -1):
layer = self.iface.mapCanvas().layer(i)
if layer.type() == 0: # vector
if self.isRendererV2(layer):
#QMessageBox.information(self.iface.mainWindow(), "Warning", "New Symbology layer found for layer '"+layer.name()+"'\n\nThe plugin cannot handle layer(s) which use 'New Symbology' yet.\n\nThis layer will be ignored in export.\n\nPlease change symbology of these layer(s) to 'Old Symbology' if you want this layer in svg.")
#pass
svg.extend(self.writeVectorLayer(layer, False))
else: # old symbology
svg.extend(self.writeVectorLayer(layer, False))
elif layer.type() == 1: # raster
svg.extend(self.writeRaster(layer))
# layers like OpenLayers/OpenStreetmap/Google are plugin layer: write as raster for now
elif layer.type() == 2: # plugin layer
svg.extend(self.writeRaster(layer))
# now layers with labels
for i in range(self.iface.mapCanvas().layerCount() - 1, -1, -1):
layer = self.iface.mapCanvas().layer(i)
if layer.type() == 0: # vector
lblSettings = QgsPalLayerSettings()
lblSettings.readFromLayer(layer)
#TODO: fix this if layer.type()==0 and layer.hasLabelsEnabled(): # only vectors have labels
if layer.type(
) == 0 and lblSettings.enabled: # only vectors have labels
svg.extend(self.writeVectorLayer(layer, True))
# qgis extent, usable for clipping in Inkscape
svg.extend(self.writeExtent())
svg.append(u'</svg>')
return svg
def isRendererV2(self, layer):
return (layer.type() == 0 and hasattr(layer, 'isUsingRendererV2')
and layer.isUsingRendererV2()) or (
layer.type() == 0
and not hasattr(layer, 'isUsingRendererV2') and
('rendererV2' in dir(layer)))
def isRendererV2SIP2(self, layer):
return (layer.type() == 0 and not hasattr(layer, 'isUsingRendererV2')
and ('rendererV2' in dir(layer)))
def writeVectorLayer(self, layer, labels=False):
# in case of 'on the fly projection'
# AND
# different crs's for mapCanvas/project and layer we have to reproject stuff
if hasattr(self.iface.mapCanvas().mapRenderer(), "destinationSrs"):
# QGIS < 2.0
destinationCrs = self.iface.mapCanvas().mapRenderer(
).destinationSrs()
layerCrs = layer.srs()
else:
destinationCrs = self.iface.mapCanvas().mapRenderer(
).destinationCrs()
layerCrs = layer.crs()
if self.featuresInMapcanvasOnly:
mapCanvasExtent = self.iface.mapCanvas().extent()
else:
mapCanvasExtent = layer.extent()
#print 'destination crs: %s:' % destinationCrs.toProj4()
#print 'layer crs: %s:' % layerCrs.toProj4()
doCrsTransform = False
if not destinationCrs == layerCrs:
# we have to transform the mapCanvasExtent to the data/layer Crs to be able
# to retrieve the features from the data provider
# but ONLY if we are working with on the fly projection
# (because in that case we just 'fly' to the raw coordinates from data)
if self.iface.mapCanvas().hasCrsTransformEnabled():
# only if we have 'on te fly transformation' enabled
# AND the mapCanvasExtent is the real mapcanvas extent (note: if we
# are going to write ALL features, then mapCanvasExtent is actually the layer extent)
if self.featuresInMapcanvasOnly:
crsTransform = QgsCoordinateTransform(
destinationCrs, layerCrs)
mapCanvasExtent = crsTransform.transformBoundingBox(
mapCanvasExtent)
# we have to have a transformer to do the transformation of the geometries
# to the mapcanvas crs ourselves:
crsTransform = QgsCoordinateTransform(layerCrs, destinationCrs)
doCrsTransform = True
lblSettings = QgsPalLayerSettings()
lblSettings.readFromLayer(layer)
# select features within current extent,
# with ALL attributes, WITHIN currentExtent, WITH geom, AND using Intersect instead of bbox
# we are going to group all features by their symbol so in svg we can group them in a <g> tag with the symbol style
if self.isRendererV2(layer):
if hasattr(layer, 'isUsingRendererV2'):
# For QGis 1.8 API, new symbology
provider = layer.dataProvider()
provider.select(provider.attributeIndexes(), mapCanvasExtent,
True, True)
else:
# For QGis 2.0 cleaned-up API
provider = layer.getFeatures(
QgsFeatureRequest().setFilterRect(mapCanvasExtent))
renderer = layer.rendererV2()
if str(renderer.type()) not in ("singleSymbol",
"categorizedSymbol",
"graduatedSymbol"):
QMessageBox.information(
self.iface.mainWindow(), "Warning",
"New Symbology layer found for layer '" + layer.name() +
"'\n\nThis layer uses a Renderer/Style which cannot be used with this plugin.\n\nThis layer will be ignored in export."
)
return ""
else:
# For QGis <= 1.8 API, old symbology
provider = layer.dataProvider()
provider.select(provider.attributeIndexes(), mapCanvasExtent, True,
True)
renderer = layer.renderer()
symbols = renderer.symbols()
symbolFeatureMap = dict.fromkeys(symbols, [])
id = self.sanitizeStr(unicode(layer.name()).lower())
if labels:
id = id + '_labels'
svg = [
u'<g id="' + id + '" inkscape:groupmode="layer" inkscape:label="' +
id + '">\n'
]
# start of layer g-element
# now iterate through each feature and group by feature
f = QgsFeature()
feature = None
#print "1 symbols holds %s symbols" % len(symbols)
while provider.nextFeature(f):
feature = QgsFeature(f)
geom = feature.geometry()
if hasattr(layer, "srs"):
# QGIS < 2.0
layerCrs = layer.srs()
else:
layerCrs = layer.crs()
if doCrsTransform:
if hasattr(geom, "transform"):
geom.transform(crsTransform)
else:
QMessageBox.warning(self.iface.mainWindow(
), self.MSG_BOX_TITLE, (
"Cannot crs-transform geometry in your QGIS version ...\n"
"Only QGIS version 1.5 and above can transform geometries on the fly\n"
"As a workaround, you can try to save the layer in the destination crs (eg as shapefile) and reload that layer...\n"
), QMessageBox.Ok, QMessageBox.Ok)
break
symbol = self.symbolForFeature(layer, feature)
#print "feature: %s symbol: %s rgb: %s %s %s" % (feature, symbol, symbol.color().red(), symbol.color().green(), symbol.color().blue())
# Continous Color does NOT have all symbols, but ONLY start and end color
# that's why we do some extra stuff here...
# ONLY needed for Old Symbology (which have 'name()' and not 'type()')
if hasattr(renderer,
'name') and renderer.name() == "Continuous Color":
symbols.append(symbol)
if symbol in symbolFeatureMap:
symbolFeatureMap[symbol] = [feature]
else:
symbolFeatureMap.update({symbol: [feature]})
else:
if not symbol in symbolFeatureMap or len(
symbolFeatureMap[symbol]) == 0:
symbolFeatureMap[symbol] = [feature]
else:
symbolFeatureMap[symbol].append(feature)
# now iterate over symbols IF there are any features in this view from this layer
if feature != None:
id = id + '_'
i = 0
#print "2 symbols holds %s symbols" % len(symbols)
for symbol in symbols:
if self.isRendererV2(layer):
sym = self.symbolV2(feature, symbol)
else:
sym = self.symbol(feature, symbol)
# start of symbol g-element, holds colors and stroke etc
if not labels:
fill = ''
if sym.has_key('fill'):
fill = 'fill="' + sym['fill'] + '"'
svg.append(u'<g stroke="' + sym['stroke'] + '" ' + fill +
' stroke-linejoin="' + self.strokeLineJoin +
'" stroke-width="' + sym['stroke-width'] +
'">\n')
else:
# TODO fix this
if False:
lc = layer.label().labelAttributes().color()
lblColor = u'rgb(%s,%s,%s)' % (lc.red(), lc.green(),
lc.blue())
else: # labels all black for now...
lblColor = u'rgb(0,0,0)'
svg.append(u'<g stroke="none" fill="' + lblColor + '">\n')
for feature in symbolFeatureMap[symbol]:
i = i + 1
# labeltxt is used both for the real labels, AND for the inkscape-label attributes of g and txt elements
# TODO fix this
if lblSettings.enabled:
labeltxt = self.sanitizeStr(
feature[lblSettings.fieldName])
else:
#labeltxt = self.sanitizeStr(layer.label().fieldValue(0, feature)) # only first field for now.
#labeltxt = self.sanitizeStr(unicode(feature.fields().field(0)))
labeltxt = self.sanitizeStr('')
if not labels:
svg.extend(
self.writeFeature(feature, id + str(i), labeltxt))
if labels:
geom = feature.geometry().centroid()
# centroid-method returns a NON-transformed centroid
if doCrsTransform:
if hasattr(geom, "transform"):
geom.transform(crsTransform)
else:
QMessageBox.warning(self.iface.mainWindow(
), self.MSG_BOX_TITLE, (
"Cannot crs-transform geometry in your QGIS version ...\n"
"Only QGIS version 1.5 and above can transform geometries on the fly\n"
"As a workaround, you can try to save the layer in the destination crs (eg as shapefile) and reload that layer...\n"
), QMessageBox.Ok, QMessageBox.Ok)
break
svg.extend(
self.label2svg(
geom.asPoint(), id + str(i),
self.symbolForFeature(layer, feature),
labeltxt))
svg.append(u'</g>\n')
# end of symbol
svg.append(u'</g>\n')
# end of layer
return svg
def symbol(self, feature, symbol):
sym = {}
sc = symbol.color()
sym['stroke'] = u'rgb(%s,%s,%s)' % (sc.red(), sc.green(), sc.blue())
# fill color: only non line features have fill color, lines have 'none'
geom = feature.geometry()
if geom.wkbType() in (QGis.WKBLineString, QGis.WKBLineString25D,
QGis.WKBMultiLineString,
QGis.WKBMultiLineString25D):
sym['fill'] = u'none'
else:
f = symbol.fillColor()
sym['fill'] = u'rgb(%s,%s,%s)' % (f.red(), f.green(), f.blue())
# pen: in QT pen can be 0
if symbol.pen().width() < 1:
sym['stroke-width'] = u'0.5'
else:
sym['stroke-width'] = unicode(symbol.pen().width())
return sym
def symbolV2(self, feature, symbol):
#print '##### symbol: %s, symbollayercount: %s' % (symbol, symbol.symbolLayerCount())
sym = {}
if symbol.symbolLayerCount() > 1:
QMessageBox.information(
self.iface.mainWindow(), "Warning", "Layer '" + layer.name() +
"' uses New Symbology, and styles with more the one Symbol Layer, only the first one will be use."
)
sl = symbol.symbolLayer(0)
slprops = sl.properties()
#print("symbollayer properties: %s" % slprops)
# region/polgyons have: color_border / style_border / offset / style / color / width_border
# {PyQt4.QtCore.QString(u'color_border'): PyQt4.QtCore.QString(u'0,0,0,255'), PyQt4.QtCore.QString(u'style_border'): PyQt4.QtCore.QString(u'solid'), PyQt4.QtCore.QString(u'offset'): PyQt4.QtCore.QString(u'0,0'), PyQt4.QtCore.QString(u'style'): PyQt4.QtCore.QString(u'solid'), PyQt4.QtCore.QString(u'color'): PyQt4.QtCore.QString(u'0,0,255,255'), PyQt4.QtCore.QString(u'width_border'): PyQt4.QtCore.QString(u'0.26')}
# markers/points have : color_border / offset / size / color / name / angle:
# {PyQt4.QtCore.QString(u'color_border'): PyQt4.QtCore.QString(u'0,0,0,255'), PyQt4.QtCore.QString(u'offset'): PyQt4.QtCore.QString(u'0,0'), PyQt4.QtCore.QString(u'size'): PyQt4.QtCore.QString(u'2'), PyQt4.QtCore.QString(u'color'): PyQt4.QtCore.QString(u'255,0,0,255'), PyQt4.QtCore.QString(u'name'): PyQt4.QtCore.QString(u'circle'), PyQt4.QtCore.QString(u'angle'): PyQt4.QtCore.QString(u'0')}
# lines have : color / offset / penstyle / width / use_custom_dash / joinstyle / customdash / capstyle:
# {PyQt4.QtCore.QString(u'color'): PyQt4.QtCore.QString(u'255,255,0,255'), PyQt4.QtCore.QString(u'offset'): PyQt4.QtCore.QString(u'0'), PyQt4.QtCore.QString(u'penstyle'): PyQt4.QtCore.QString(u'solid'), PyQt4.QtCore.QString(u'width'): PyQt4.QtCore.QString(u'0.5'), PyQt4.QtCore.QString(u'use_custom_dash'): PyQt4.QtCore.QString(u'0'), PyQt4.QtCore.QString(u'joinstyle'): PyQt4.QtCore.QString(u'bevel'), PyQt4.QtCore.QString(u'customdash'): PyQt4.QtCore.QString(u'5;2'), PyQt4.QtCore.QString(u'capstyle'): PyQt4.QtCore.QString(u'square')}
try:
strokekey = QString(u'line_color')
strokekey2 = QString(u'outline_color')
colorkey = QString(u'color')
stylekey = QString(u'style')
width_borderkey = QString(u'width_border')
widthkey = QString(u'width')
except NameError:
strokekey = u'line_color'
strokekey2 = u'outline_color'
colorkey = u'color'
stylekey = u'style'
width_borderkey = u'width_border'
widthkey = u'width'
if slprops.has_key(strokekey):
stroke = unicode(slprops[strokekey])
sym['stroke'] = u'rgb(%s)' % (stroke[:stroke.rfind(',')])
elif slprops.has_key(strokekey2):
stroke = unicode(slprops[strokekey2])
sym['stroke'] = u'rgb(%s)' % (stroke[:stroke.rfind(',')])
else:
sym['stroke'] = u'none'
# fill color: only non line features have fill color, lines have 'none'
geom = feature.geometry()
if slprops.has_key(colorkey):
fill = unicode(slprops[colorkey])
if geom.wkbType() in (QGis.WKBLineString, QGis.WKBLineString25D,
QGis.WKBMultiLineString,
QGis.WKBMultiLineString25D):
sym['stroke'] = u'rgb(%s)' % (fill[:fill.rfind(',')])
# points have fill and stroke
sym['fill'] = u'rgb(%s)' % (fill[:fill.rfind(',')])
# if feature is line OR when there is no brush: set fill to none
if geom.wkbType() in (QGis.WKBLineString, QGis.WKBLineString25D, QGis.WKBMultiLineString, QGis.WKBMultiLineString25D) \
or (slprops.has_key(stylekey) and slprops[stylekey] == 'no'):
sym['fill'] = u'none'
# pen: in QT pen can be 0
if slprops.has_key(width_borderkey):
sym['stroke-width'] = unicode(slprops[width_borderkey])
elif slprops.has_key(widthkey):
sym['stroke-width'] = unicode(slprops[widthkey])
else:
sym['stroke-width'] = u'0.40'
#print sym
return sym
def writeExtent(self):
svg = [
u'<!-- QGIS extent for clipping, eg in Inkscape -->\n<g id="qgisviewbox" inkscape:groupmode="layer" inkscape:label="qgisviewbox" stroke="rgb(255,0,0)" stroke-width="1" fill="none" >\n'
]
for ring in self.extentAsPoly.asPolygon():
svg.append(u'<path d="M ')
first = True
for point in ring:
pixpoint = self.w2p(point.x(), point.y(),
self.iface.mapCanvas().mapUnitsPerPixel(),
self.currentExtent.xMinimum(),
self.currentExtent.yMaximum())
if not first:
svg.append(u'L ')
svg.append(
(unicode(pixpoint[0]) + ',' + unicode(pixpoint[1]) + ' '))
first = False
svg.append(u'" />\n')
svg.append(u'</g>')
return svg
def writeRaster(self, layer):
# hide all layers except 'layer' and save as png image in current directory
# TODO? maybe inline it in svg?
# save visibility of layers
visibleList = self.iface.mapCanvas().layers()
legend = self.iface.legendInterface()
# set all layers invisible EXCEPT layer
for lyr in visibleList:
if lyr != layer:
legend.setLayerVisible(lyr, False)
lyrName = unicode(layer.name())
imgName = lyrName + '.png'
try:
imgPath = self.svgFilename[:self.svgFilename.rfind('/') + 1]
except NameError:
imgPath = self.svgFilename[:self.svgFilename.rfind('/') + 1]
# save image next to svg but put it in Image tag only the local filename
self.iface.mapCanvas().saveAsImage(imgPath + imgName)
# <image y="-7.7685061" x="27.115078" id="image3890" xlink:href="nl.png" />
svg = [
u'<g id="' + lyrName +
'" inkscape:groupmode="layer" inkscape:label="' + lyrName + '">\n'
]
#svg.append('<image y="0" x="0" xlink:href="'+imgPath+imgName+'" />')
svg.append(u'<image y="0" x="0" xlink:href="' + imgName + '" />')
svg.append(u'</g>') # end of raster layer
# now set earlier visible layers back to visible
for lyr in visibleList:
legend.setLayerVisible(lyr, True)
return svg
def label2svg(self, point, fid, symbol, labelTxt):
# <g> <text x="262.08704" y="523.79077">abc</text> </g>
#point = feature.geometry().centroid().asPoint()
xy = self.w2p(point.x(), point.y(),
self.iface.mapCanvas().mapUnitsPerPixel(),
self.currentExtent.xMinimum(),
self.currentExtent.yMaximum())
inkscapeLbl = ''
if len(labelTxt) > 0:
inkscapeLbl = 'inkscape:label="' + unicode(labelTxt + '_lbl') + '"'
svg = [
u'<text id="' + fid + '" x="' + unicode(xy[0]) + '" y="' +
unicode(xy[1]) + '" ' + inkscapeLbl + '>' + unicode(labelTxt) +
'</text>\n'
]
return svg
def sanitizeStr(self, string):
# TODO: find the right way to do this
return unicode(string).replace(' ', '_').replace('/', '_').replace(
',', '_').replace('.', '_')
def writeFeature(self, feature, fid, labelTxt):
svg = []
# <g>-element set's style attributes
inkscapeLbl = ''
if len(labelTxt) > 0:
inkscapeLbl = 'inkscape:label="' + unicode(labelTxt) + '"'
svg.append(u'<g id="' + fid + '" ' + inkscapeLbl + '>\n')
geom = feature.geometry()
currentExtent = self.currentExtent
# https://qgis.org/api/2.18/classQGis.html#a8da456870e1caec209d8ba7502cceff7
#print(geom.wkbType(), QGis.WKBPoint, QGis.WKBPoint25D)
if geom.wkbType() in (QGis.WKBPoint, QGis.WKBPoint25D): # 1 = WKBPoint
point = geom.asPoint()
svg.extend(self.point2svg(point, currentExtent))
if geom.wkbType() in (QGis.WKBMultiPoint, QGis.WKBMultiPoint25D):
multipoint = geom.asMultiPoint()
for point in multipoint:
svg.extend(self.point2svg(point, currentExtent))
if geom.wkbType() in (QGis.WKBPolygon,
QGis.WKBPolygon25D): # 3 = WKBTYPE.WKBPolygon:
polygon = geom.asPolygon() # returns a list
svg.extend(self.polygon2svg(feature, polygon, currentExtent))
if geom.wkbType() in (
QGis.WKBMultiPolygon,
QGis.WKBMultiPolygon25D): # 6 = WKBTYPE.WKBMultiPolygon:
multipolygon = geom.asMultiPolygon() # returns a list
for polygon in multipolygon:
svg.extend(self.polygon2svg(feature, polygon, currentExtent))
if geom.wkbType() in (
QGis.WKBLineString,
QGis.WKBLineString25D): # 6 = WKBTYPE.WKBLineString:
line = geom.asPolyline() # returns a list of points
svg.extend(self.line2svg(feature, line, currentExtent))
if geom.wkbType() in (
QGis.WKBMultiLineString,
QGis.WKBMultiLineString25D): # 6 = WKBTYPE.WKBLineString:
multiline = geom.asMultiPolyline() # returns a list of points
for line in multiline:
svg.extend(self.line2svg(feature, line, currentExtent))
svg.append(u'</g>\n')
return svg
def point2svg(self, point, currentExtent):
#point = feature.geometry().asPoint()
xy = self.w2p(point.x(), point.y(),
self.iface.mapCanvas().mapUnitsPerPixel(),
self.currentExtent.xMinimum(),
self.currentExtent.yMaximum())
#print(point, xy, point.x(), point.y(), self.iface.mapCanvas().mapUnitsPerPixel(), self.currentExtent.xMinimum(), self.currentExtent.yMaximum())
# TODO take current extent into account
svg = [
'<circle cx="' + unicode(xy[0]) + '" cy="' + unicode(xy[1]) +
'" r="5" />'
]
return svg
def symbolForFeature(self, layer, feature):
if self.isRendererV2(layer):
return layer.rendererV2().symbolForFeature(feature)
else:
# symbolForFeatures seems not to work for Old Symbology?? Do it ourselves:
# OLD symbolisation:
# Graduated Symbol: every symbol has BOTH upper and lower bound/value
# Unique Value: every symbol has BOTH upper and lower value
# Continues Color: HAS lower(==value) but NO upper value, BUT has just two symbols: MIN and MAX color, see http://doc.qgis.org/head/qgscontinuouscolorrenderer_8cpp-source.html
# Single Simbol: just one symbol, return it
renderer = layer.renderer()
#print "renderer.name(): %s" % renderer.name()
default = None
if renderer.name(
) == "Single Symbol": # there is just one symbol: return it
return renderer.symbols()[0]
if renderer.name() == "Continuous Color":
#pass # already done, should not come here !!
minSymbol = renderer.symbols()[0]
minValue = (minSymbol.lowerValue()).toDouble(
)[0] # we know Continuous Color only works with numeric attributes
minRed = minSymbol.fillColor().red()
minGreen = minSymbol.fillColor().green()
minBlue = minSymbol.fillColor().blue()
maxSymbol = renderer.symbols()[1]
maxValue = (maxSymbol.lowerValue()).toDouble(
)[0] # we know Continuous Color only works with numeric attributes
maxRed = maxSymbol.fillColor().red()
maxGreen = maxSymbol.fillColor().green()
maxBlue = maxSymbol.fillColor().blue()
# create new symbol and set RGB according to calculation in http://doc.qgis.org/head/qgscontinuouscolorrenderer_8cpp-source.html
symbol = QgsSymbol(minSymbol) # copy
value = (feature.attributeMap(
)[renderer.classificationAttributes()[0]]).toDouble(
)[0] # we know Continuous Color only works with numeric attributes
if (maxValue - minValue) <> 0:
red = int(maxRed * (value - minValue) /
(maxValue - minValue) + minRed *
(maxValue - value) / (maxValue - minValue))
green = int(maxGreen * (value - minValue) /
(maxValue - minValue) + minGreen *
(maxValue - value) / (maxValue - minValue))
blue = int(maxBlue * (value - minValue) /
(maxValue - minValue) + minBlue *
(maxValue - value) / (maxValue - minValue))
else:
red = minRed
green = minGreen
blue = minBlue
newFillColor = QColor(red, green, blue)
symbol.setFillColor(newFillColor)
if renderer.drawPolygonOutline():
# always black
color = QColor(0, 0, 0)
symbol.setColor(color)
else:
symbol.setColor(newFillColor)
return symbol
# else loop over symbols to find the current symbol for this feature
# value can be string or numbers...
value = (feature.attributeMap()[
renderer.classificationAttributes()[0]]).toString()
for symbol in renderer.symbols():
lower = symbol.lowerValue()
upper = symbol.upperValue()
#print "lower: %s upper: %s value: %s notlower %s, notupper %s, value==lower %s, value=upper %s, str(value)[0].isdigit() %s" % (lower, upper, value, (not lower), (not upper), (value == lower), (value == upper), str(value)[0].isdigit())
if not lower and not upper:
# 'default value' given for default in Unique Value
default = symbol
# Unique Value symbols have the value in both upper and lower value (if values are string!)
elif (value == lower and value == upper):
return symbol
# Unique Value symbols for numbers do not have an upper
elif str(value)[0].isdigit() and not upper and float(
value) == float(symbol.lowerValue()):
return symbol
# Graduated Classifications have lower AND uppervalues AND values are always numbers
elif str(value)[0].isdigit() and upper and lower and (
float(value) >= float(symbol.lowerValue())
and float(value) <= float(symbol.upperValue())):
#print "Graduated Classification: %s between %s and %s " % (value, symbol.lowerValue(), symbol.upperValue())
return symbol
#else:
# print "NEXT..."
#print "RETURNING DEFAULT!!"
return default
def line2svg(self, feature, line, currentExtent):
#print("calling line2svg...")
linesvg = []
svg = u''
if self.svgType == SVG_TYPE_PATH:
svg += '<path d="M '
else: # SVG_TYPE_SHAPE
svg += '<polyline points="'
lastPixel = [0, 0]
insideExtent = False
coordCount = 0
for point in line:
if self.extentAsPoly.contains(
point) or not self.featuresInMapcanvasOnly:
insideExtent = True
pixpoint = self.w2p(point.x(), point.y(),
self.iface.mapCanvas().mapUnitsPerPixel(),
currentExtent.xMinimum(),
currentExtent.yMaximum())
#print(pixpoint)
if lastPixel <> pixpoint:
coordCount = coordCount + 1
if self.svgType == SVG_TYPE_PATH and coordCount > 1:
svg += 'L '
svg += (str(pixpoint[0]) + ',' + str(pixpoint[1]) + ' ')
lastPixel = pixpoint
# if at least ONE pixel of this ring is in current view extent, return the area-string, otherwise return an empty string
if not insideExtent:
#print("SKIPPING: Ring fully outside extent...?")
pass
else:
# check if there are more then 2 coords: very small polygons on current map can have coordinates
# which if rounded to pixels all come to the same pixel, resulting in just ONE x,y coordinate
# we skip these
if coordCount < 2:
#print("SKIPPING: Line contains just one pixel coordinate pair")
pass
else:
svg += '"/>\n'
linesvg.append(svg)
#print(linesvg)
return linesvg
# SHAPE-svg
# <polygon stroke="rgb(0,0,0)" fill="rgb(234,102,228)" stroke-width="1" points="439,238 445,230 ... 439,238"/>
# or
# <polygon points="439,238 445,230 ... 439,238"/>
# PATH-svg
# <g stroke="rgb(0,0,0)" fill="rgb(234,102,228)" stroke-width="1" ><path d="M 439 238 L 445 220 ... L 439 238" /> </g>
def polygon2svg(self, feature, polygon, currentExtent):
#print "calling polygon2svg..."
polygonsvg = ['']
for ring in polygon:
svg = ''
if self.svgType == SVG_TYPE_PATH:
svg += '<path d="M '
else: # SVG_TYPE_SHAPE
svg = '<polygon points="'
lastPixel = [0, 0]
insideExtent = False
coordCount = 0
for point in ring:
if self.extentAsPoly.contains(
point) or not self.featuresInMapcanvasOnly:
insideExtent = True
pixpoint = self.w2p(point.x(), point.y(),
self.iface.mapCanvas().mapUnitsPerPixel(),
currentExtent.xMinimum(),
currentExtent.yMaximum())
if lastPixel <> pixpoint:
coordCount = coordCount + 1
if self.svgType == SVG_TYPE_PATH and coordCount > 1:
svg += 'L '
svg += (str(pixpoint[0]) + ',' + str(pixpoint[1]) + ' ')
lastPixel = pixpoint
# if at least ONE pixel of this ring is in current view extent, return the area-string, otherwise return an empty string
if not insideExtent:
#print "RING FULLY OUTSIDE EXTENT: %s " % ring
None
else:
# check if there are more then 2 coords: very small polygons on current map can have coordinates
# which if rounded to pixels all come to the same pixel, resulting in just ONE x,y coordinate
# we skip these
if coordCount < 2:
#print "Ring contains just one pixel coordinate pair: skipping"
None
else:
svg += '" />\n'
polygonsvg.append(svg)
return polygonsvg
# NOT WORKING ????
# pixpoint = m2p.transform(point.x(), point.y())
# print m2p.transform(point.x(), point.y())
# so for now: a custom 'world2pixel' method
def w2p(self, x, y, mupp, minx, maxy):
pixX = (x - minx) / mupp
pixY = (y - maxy) / mupp
return [int(pixX), int(-pixY)]