Ejemplo n.º 1
0
    def testStatistics(self):
        """Test zonal stats"""
        TEST_DATA_DIR = unitTestDataPath() + "/zonalstatistics/"
        myTempPath = QDir.tempPath() + "/"
        testDir = QDir(TEST_DATA_DIR)
        for f in testDir.entryList(QDir.Files):
            QFile.remove(myTempPath + f)
            QFile.copy(TEST_DATA_DIR + f, myTempPath + f)

        myVector = QgsVectorLayer(myTempPath + "polys.shp", "poly", "ogr")
        myRasterPath = myTempPath + "edge_problem.asc"
        zs = QgsZonalStatistics(myVector, myRasterPath, "", 1)
        zs.calculateStatistics(None)

        feat = QgsFeature()
        # validate statistics for each feature
        request = QgsFeatureRequest().setFilterFid(0)
        feat = next(myVector.getFeatures(request))
        myMessage = ('Expected: %f\nGot: %f\n' % (12.0, feat[1]))
        assert feat[1] == 12.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (8.0, feat[2]))
        assert feat[2] == 8.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (0.666666666666667, feat[3]))
        assert abs(feat[3] - 0.666666666666667) < 0.00001, myMessage

        request.setFilterFid(1)
        feat = next(myVector.getFeatures(request))
        myMessage = ('Expected: %f\nGot: %f\n' % (9.0, feat[1]))
        assert feat[1] == 9.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (5.0, feat[2]))
        assert feat[2] == 5.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (0.555555555555556, feat[3]))
        assert abs(feat[3] - 0.555555555555556) < 0.00001, myMessage

        request.setFilterFid(2)
        feat = next(myVector.getFeatures(request))
        myMessage = ('Expected: %f\nGot: %f\n' % (6.0, feat[1]))
        assert feat[1] == 6.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (5.0, feat[2]))
        assert feat[2] == 5.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (0.833333333333333, feat[3]))
        assert abs(feat[3] - 0.833333333333333) < 0.00001, myMessage
Ejemplo n.º 2
0
    def testStatistics(self):
        """Test zonal stats"""
        TEST_DATA_DIR = unitTestDataPath() + "/zonalstatistics/"
        myTempPath = QDir.tempPath() + "/"
        testDir = QDir(TEST_DATA_DIR)
        for f in testDir.entryList(QDir.Files):
            QFile.remove(myTempPath + f)
            QFile.copy(TEST_DATA_DIR + f, myTempPath + f)

        myVector = QgsVectorLayer(myTempPath + "polys.shp", "poly", "ogr")
        myRasterPath = myTempPath + "edge_problem.asc"
        zs = QgsZonalStatistics(myVector, myRasterPath, "", 1)
        zs.calculateStatistics(None)

        feat = QgsFeature()
        # validate statistics for each feature
        request = QgsFeatureRequest().setFilterFid(0)
        feat = next(myVector.getFeatures(request))
        myMessage = ('Expected: %f\nGot: %f\n' % (12.0, feat[1]))
        assert feat[1] == 12.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (8.0, feat[2]))
        assert feat[2] == 8.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (0.666666666666667, feat[3]))
        assert abs(feat[3] - 0.666666666666667) < 0.00001, myMessage

        request.setFilterFid(1)
        feat = next(myVector.getFeatures(request))
        myMessage = ('Expected: %f\nGot: %f\n' % (9.0, feat[1]))
        assert feat[1] == 9.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (5.0, feat[2]))
        assert feat[2] == 5.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (0.555555555555556, feat[3]))
        assert abs(feat[3] - 0.555555555555556) < 0.00001, myMessage

        request.setFilterFid(2)
        feat = next(myVector.getFeatures(request))
        myMessage = ('Expected: %f\nGot: %f\n' % (6.0, feat[1]))
        assert feat[1] == 6.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (5.0, feat[2]))
        assert feat[2] == 5.0, myMessage
        myMessage = ('Expected: %f\nGot: %f\n' % (0.833333333333333, feat[3]))
        assert abs(feat[3] - 0.833333333333333) < 0.00001, myMessage
Ejemplo n.º 3
0
    def finished(self):
        outFn = self.getOutputFileName()
        if self.needOverwrite:
            oldFile = QFile(outFn)
            newFile = QFile(self.tempFile)
            if oldFile.remove():
                newFile.rename(outFn)

        fileInfo = QFileInfo(outFn)
        if fileInfo.exists():
            if self.base.loadCheckBox.isChecked():
                self.addLayerIntoCanvas(fileInfo)
            QMessageBox.information(self, self.tr("Finished"), self.tr("Processing completed."))
        else:
            QMessageBox.warning(self, self.tr("Warning"), self.tr("{0} not created.").format(outFn))
Ejemplo n.º 4
0
    def onFinished(self, exitCode, status):
        if not self.isBatchEnabled():
            BasePluginWidget.onFinished(self, exitCode, status)
            return

        msg = bytes.decode(bytes(self.base.process.readAllStandardError()))
        if msg != '':
            self.errors.append(">> " + self.inFiles[self.batchIndex] + "<br>" + msg.replace("\n", "<br>"))

        self.base.process.close()

        # overwrite existent files
        inDir = self.getInputFileName()
        outDir = self.getOutputFileName()
        if outDir is None or inDir == outDir:
            oldFile = QFile(self.inFiles[self.batchIndex])
            newFile = QFile(self.outFiles[self.batchIndex])
            if oldFile.remove():
                newFile.rename(self.inFiles[self.batchIndex])

        self.batchIndex += 1
        self.runItem(self.batchIndex, self.batchTotal)