def createClassifiedLayer(self):
if not self.vl:
return
self.removeClassifiedLayer()
# create the output layer
classField = "classType"
fields = map(lambda x: x[1],
sorted(self.vl.dataProvider().fields().iteritems()))
fields += [QgsField(classField, QVariant.String)]
vl = Utils.createMemoryLayer('Point',
self.vl.crs().authid(), fields,
"classified")
if not vl:
return
# set style
LayerStyler.setClassifiedStyle(vl, classField, 0.8)
self.classifiedVl = vl
QObject.connect(self.classifiedVl, SIGNAL("layerDeleted()"),
self.classifiedLayerDestroyed)
def setLayer(self, vl):
""" set the layer as the current one used by the plugin """
# store the new layer
LayerStyler.setEarthquakesStyle(vl)
self.vl = vl
QObject.connect( self.vl, SIGNAL("layerDeleted()"), self.layerDestroyed )
# create the layer that will contain classified point
self.createClassifiedLayer()
# enable the filter/plot panel
self.createDock()
self.updateActionsState()
def setLayer(self, vl):
""" set the layer as the current one used by the plugin """
# store the new layer
LayerStyler.setEarthquakesStyle(vl)
self.vl = vl
QObject.connect(self.vl, SIGNAL("layerDeleted()"), self.layerDestroyed)
# create the layer that will contain classified point
self.createClassifiedLayer()
# enable the filter/plot panel
self.createDock()
self.updateActionsState()
def addBasemapLayer(self):
if self.basemapVl:
return # already added
current_dir = QFileInfo(__file__).absoluteDir()
basemap = current_dir.absoluteFilePath( u"data/basemap/Countries.shp" )
# load the basemap layer
vl = QgsVectorLayer(basemap, QFileInfo(basemap).baseName(), "ogr")
if not vl.isValid():
vl.deleteLater()
return
# add the basemap layer to canvas
LayerStyler.setBasemapStyle(vl)
self.basemapVl = vl
QObject.connect( self.basemapVl, SIGNAL("layerDeleted()"), self.basemapLayerDestroyed )
Utils.addVectorLayer(vl)
def addBasemapLayer(self):
if self.basemapVl:
return # already added
current_dir = QFileInfo(__file__).absoluteDir()
basemap = current_dir.absoluteFilePath(u"data/basemap/Countries.shp")
# load the basemap layer
vl = QgsVectorLayer(basemap, QFileInfo(basemap).baseName(), "ogr")
if not vl.isValid():
vl.deleteLater()
return
# add the basemap layer to canvas
LayerStyler.setBasemapStyle(vl)
self.basemapVl = vl
QObject.connect(self.basemapVl, SIGNAL("layerDeleted()"),
self.basemapLayerDestroyed)
Utils.addVectorLayer(vl)
def createClassifiedLayer(self):
if not self.vl:
return
self.removeClassifiedLayer()
# create the output layer
classField = "classType"
fields = map( lambda x: x[1], sorted(self.vl.dataProvider().fields().iteritems()) )
fields += [ QgsField(classField, QVariant.String) ]
vl = Utils.createMemoryLayer( 'Point', self.vl.crs().authid(), fields, "classified" )
if not vl:
return
# set style
LayerStyler.setClassifiedStyle( vl, classField, 0.8 )
self.classifiedVl = vl
QObject.connect( self.classifiedVl, SIGNAL("layerDeleted()"), self.classifiedLayerDestroyed )
