def makeVecAddAbundDict(setupObject, layerList, idFieldName, convFactor):
addAbundDict = {}
addFeatIDSet = set()
decPrec = setupObject.decimalPlaces
puLayer = QgsVectorLayer(setupObject.puPath, "Planning units", "ogr")
layerNumber = 1
for aLayer in layerList:
layerGeomType = aLayer.geometryType()
qgis.utils.iface.mainWindow().statusBar().showMessage("Intersecting layer " + str(layerNumber) + "...")
dirPath = os.path.dirname(setupObject.puPath)
intersectShapeFileNameNumber = cluz_setup.returnLowestUnusedFileNameNumber(dirPath, "temp_int", ".shp")
tempIntersectLayer = dirPath + os.sep + "temp_int" + str(intersectShapeFileNameNumber) + ".shp"
overlayAnalyzer = QgsOverlayAnalyzer()
overlayAnalyzer.intersection(puLayer, aLayer, tempIntersectLayer)
outputLayer = QgsVectorLayer(tempIntersectLayer, "Temp", "ogr")
outputFeatures = outputLayer.getFeatures()
outputIDField = outputLayer.fieldNameIndex('Unit_ID')
outputFeatIDField = outputLayer.fieldNameIndex(idFieldName)
if layerGeomType == 1:
lineBool = True
polyBool = False
elif layerGeomType == 2:
lineBool = False
polyBool = True
qgis.utils.iface.mainWindow().statusBar().showMessage("Calculating data from layer " + str(layerNumber) + "...")
for outputFeature in outputFeatures:
outputAttributes = outputFeature.attributes()
unitID = outputAttributes[outputIDField]
featID = outputAttributes[outputFeatIDField]
addFeatIDSet.add(featID)
#Produce intersect of lines
if lineBool:
finalShapeAmount = calcFeatLineLengthInPU(outputFeature, convFactor, decPrec)
#Produce intersect of polygons
if polyBool:
finalShapeAmount = calcFeatPolygonAreaInPU(outputFeature, convFactor, decPrec)
if finalShapeAmount > 0:
try:
puAddAbundDict = addAbundDict[unitID]
except KeyError:
puAddAbundDict = {}
try:
addAmount = puAddAbundDict[featID]
except KeyError:
addAmount = 0
addAmount += finalShapeAmount
puAddAbundDict[featID] = addAmount
addAbundDict[unitID] = puAddAbundDict
layerNumber += 1
qgis.utils.iface.mainWindow().statusBar().showMessage("")
addFeatIDList = list(addFeatIDSet)
addFeatIDList.sort()
return addAbundDict, addFeatIDList
def setInitialShapeFilePath(self, setupObject):
dirPath = os.path.dirname(setupObject.puPath)
distShapeFileNameNumber = cluz_setup.returnLowestUnusedFileNameNumber(dirPath, "cluz_dist", ".shp")
distShapeFileFullPath = dirPath + os.sep + "cluz_dist" + str(distShapeFileNameNumber) + ".shp"
self.filePathlineEdit.setText(distShapeFileFullPath)