def test_AddPALToVectorLayer(self): """Check if we can set a label field, verify that PAL is assigned and that output is rendered correctly""" # TODO: add UTM PAL-specific shps, with 4326 as on-the-fly cross-check # setCanvasCrs(26913) myShpFile = os.path.join(TEST_DATA_DIR, 'lines.shp') myVectorLayer = QgsVectorLayer(myShpFile, 'Lines', 'ogr') self._MapRegistry.addMapLayer(myVectorLayer) myLayers = QStringList() myLayers.append(myVectorLayer.id()) self._MapRenderer.setLayerSet(myLayers) self._MapRenderer.setExtent(myVectorLayer.extent()) self._Canvas.zoomToFullExtent() # check layer labeling is PAL with customProperty access # should not be activated on layer load myPalSet = myVectorLayer.customProperty( "labeling" ).toString() myMessage = '\nExpected: Empty QString\nGot: %s' % (str(myPalSet)) assert str(myPalSet) == '', myMessage # simulate clicking checkbox, setting label field and clicking apply self._testFont.setPointSize(20) myPalLyr = QgsPalLayerSettings() myPalLyr.enabled = True myPalLyr.fieldName = 'Name' myPalLyr.placement = QgsPalLayerSettings.Line myPalLyr.placementFlags = QgsPalLayerSettings.AboveLine myPalLyr.xQuadOffset = 0 myPalLyr.yQuadOffset = 0 myPalLyr.xOffset = 0 myPalLyr.yOffset = 0 myPalLyr.angleOffset = 0 myPalLyr.centroidWhole = False myPalLyr.textFont = self._testFont myPalLyr.textNamedStyle = QString("Medium") myPalLyr.textColor = Qt.black myPalLyr.textTransp = 0 myPalLyr.previewBkgrdColor = Qt.white myPalLyr.priority = 5 myPalLyr.obstacle = True myPalLyr.dist = 0 myPalLyr.scaleMin = 0 myPalLyr.scaleMax = 0 myPalLyr.bufferSize = 1 myPalLyr.bufferColor = Qt.white myPalLyr.bufferTransp = 0 myPalLyr.bufferNoFill = False myPalLyr.bufferJoinStyle = Qt.RoundJoin myPalLyr.formatNumbers = False myPalLyr.decimals = 3 myPalLyr.plusSign = False myPalLyr.labelPerPart = False myPalLyr.displayAll = True myPalLyr.mergeLines = False myPalLyr.minFeatureSize = 0.0 myPalLyr.vectorScaleFactor = 1.0 myPalLyr.rasterCompressFactor = 1.0 myPalLyr.addDirectionSymbol = False myPalLyr.upsidedownLabels = QgsPalLayerSettings.Upright myPalLyr.fontSizeInMapUnits = False myPalLyr.bufferSizeInMapUnits = False myPalLyr.labelOffsetInMapUnits = True myPalLyr.distInMapUnits = False myPalLyr.wrapChar = "" myPalLyr.preserveRotation = True myPalLyr.writeToLayer(myVectorLayer) # check layer labeling is PAL with customProperty access myPalSet = myVectorLayer.customProperty( "labeling" ).toString() myMessage = '\nExpected: pal\nGot: %s' % (str(myPalSet)) assert str(myPalSet) == 'pal', myMessage # check layer labeling is PAL via engine interface myMessage = '\nCould not get whether PAL enabled from labelingEngine' assert self._PalEngine.willUseLayer(myVectorLayer), myMessage # myChecker = QgsRenderChecker() myChecker.setControlName("expected_pal_aboveLineLabeling") myChecker.setMapRenderer(self._MapRenderer) myResult = myChecker.runTest("pal_aboveLineLabeling_python"); myMessage = ('\nVector layer \'above line\' label engine ' 'rendering test failed') assert myResult, myMessage # compare against a straight rendering/save as from QgsMapCanvasMap # unnecessary? works a bit different than QgsRenderChecker, though # myImage = os.path.join(unicode(QDir.tempPath()), # 'render_pal_aboveLineLabeling.png') # self._Map.render() # self._Canvas.saveAsImage(myImage) # myChecker.setRenderedImage(myImage) # myResult = myChecker.compareImages("pal_aboveLineLabeling_python") # myMessage = ('\nVector layer \'above line\' label engine ' # 'comparison to QgsMapCanvasMap.render() test failed') # assert myResult, myMessage self._MapRegistry.removeMapLayer(myVectorLayer.id())
def testVectorBlending(self): """Test that blend modes work for vector layers.""" #Add vector layers to map myLayers = QStringList() myLayers.append(self.mLineLayer.id()) myLayers.append(self.mPolygonLayer.id()) self.mMapRenderer.setLayerSet(myLayers) self.mMapRenderer.setExtent(self.mPointLayer.extent()) #Set blending modes for both layers self.mLineLayer.setBlendMode(QPainter.CompositionMode_Difference) self.mPolygonLayer.setBlendMode(QPainter.CompositionMode_Difference) checker = QgsRenderChecker() checker.setControlName("expected_vector_blendmodes") checker.setMapRenderer(self.mMapRenderer) myResult = checker.runTest("vector_blendmodes") myMessage = ('vector blending failed') assert myResult, myMessage #Reset layers self.mLineLayer.setBlendMode(QPainter.CompositionMode_SourceOver) self.mPolygonLayer.setBlendMode(QPainter.CompositionMode_SourceOver)
def testVectorBlending(self): """Test that blend modes work for vector layers.""" #Add vector layers to map myLayers = [] myLayers.append(self.mLineLayer.id()) myLayers.append(self.mPolygonLayer.id()) self.mMapRenderer.setLayerSet(myLayers) self.mMapRenderer.setExtent(self.mPointLayer.extent()) #Set blending modes for both layers self.mLineLayer.setBlendMode(QPainter.CompositionMode_Difference) self.mPolygonLayer.setBlendMode(QPainter.CompositionMode_Difference) checker = QgsRenderChecker() checker.setControlName("expected_vector_blendmodes") checker.setMapRenderer(self.mMapRenderer) myResult = checker.runTest("vector_blendmodes"); myMessage = ('vector blending failed') assert myResult, myMessage #Reset layers self.mLineLayer.setBlendMode(QPainter.CompositionMode_SourceOver) self.mPolygonLayer.setBlendMode(QPainter.CompositionMode_SourceOver)
def renderCheck(self, mismatch=0): chk = QgsRenderChecker() chk.setControlPathPrefix('expected_' + self._TestGroupPrefix) chk.setControlName(self._Test) chk.setMapRenderer(self._MapRenderer) res = chk.runTest(self._Test, mismatch) if PALREPORT and not res: # don't report ok checks testname = self._TestGroup + ' . ' + self._Test PALREPORTS[testname] = str(chk.report().toLocal8Bit()) msg = '\nRender check failed for "{0}"'.format(self._Test) return res, msg
def test_getmap(self): test_name = 'qgis_local_server' success, img_path = MAPSERV.get_map(self.getmap_params()) msg = '\nLocal server get_map failed' assert success, msg chk = QgsRenderChecker() chk.setControlName('expected_' + test_name) chk.setMapRenderer(None) res = chk.compareImages(test_name, 0, str(img_path)) if QGIS_TEST_REPORT and not res: # don't report ok checks TESTREPORTS[test_name] = str(chk.report().toLocal8Bit()) msg = '\nRender check failed for "{0}"'.format(test_name) assert res, msg
def testRasterBlending(self): """Test that blend modes work for raster layers.""" #Add raster layers to map myLayers = QStringList() myLayers.append(self.mRasterLayer1.id()) myLayers.append(self.mRasterLayer2.id()) self.mMapRenderer.setLayerSet(myLayers) self.mMapRenderer.setExtent(self.mRasterLayer1.extent()) #Set blending mode for top layer self.mRasterLayer1.setBlendMode(QPainter.CompositionMode_Plus) checker = QgsRenderChecker() checker.setControlName("expected_raster_blendmodes") checker.setMapRenderer(self.mMapRenderer) myResult = checker.runTest("raster_blendmodes"); myMessage = ('raster blending failed') assert myResult, myMessage
def testRasterBlending(self): """Test that blend modes work for raster layers.""" #Add raster layers to map myLayers = QStringList() myLayers.append(self.mRasterLayer1.id()) myLayers.append(self.mRasterLayer2.id()) self.mMapRenderer.setLayerSet(myLayers) self.mMapRenderer.setExtent(self.mRasterLayer1.extent()) #Set blending mode for top layer self.mRasterLayer1.setBlendMode(QPainter.CompositionMode_Plus) checker = QgsRenderChecker() checker.setControlName("expected_raster_blendmodes") checker.setMapRenderer(self.mMapRenderer) myResult = checker.runTest("raster_blendmodes") myMessage = ('raster blending failed') assert myResult, myMessage
def renderCheck(self, mismatch=0): chk = QgsRenderChecker() chk.setControlPathPrefix('expected_' + self._TestGroupPrefix) chk.setControlName(self._Test) chk.setMapRenderer(self._MapRenderer) res = chk.runTest(self._Test, mismatch) if self._PalReportDir and not res: # don't report ok checks testname = self._TestGroup + ' . ' + self._Test report = '<html>' report += '<head><title>{0}</title></head>'.format(testname) report += '<body>' + chk.report().toLocal8Bit() + '</body>' report += '</html>' f = QFile(os.path.join(self._PalReportDir, testname + '.html')) if f.open(QIODevice.ReadWrite | QIODevice.Truncate): f.write(report) f.close() msg = '\nRender check failed for "{0}"'.format(self._Test) return res, msg
def testVectorLayerTransparency(self): """Test that layer transparency works for vector layers.""" #Add vector layers to map myLayers = QStringList() myLayers.append(self.mLineLayer.id()) myLayers.append(self.mPolygonLayer.id()) self.mMapRenderer.setLayerSet(myLayers) self.mMapRenderer.setExtent(self.mPointLayer.extent()) #Set feature blending for line layer self.mLineLayer.setLayerTransparency(50) checker = QgsRenderChecker() checker.setControlName("expected_vector_layertransparency") checker.setMapRenderer(self.mMapRenderer) myResult = checker.runTest("vector_layertransparency") myMessage = ('vector layer transparency failed') assert myResult, myMessage
def testVectorLayerTransparency(self): """Test that layer transparency works for vector layers.""" #Add vector layers to map myLayers = [] myLayers.append(self.mLineLayer.id()) myLayers.append(self.mPolygonLayer.id()) self.mMapRenderer.setLayerSet(myLayers) self.mMapRenderer.setExtent(self.mPointLayer.extent()) #Set feature blending for line layer self.mLineLayer.setLayerTransparency( 50 ) checker = QgsRenderChecker() checker.setControlName("expected_vector_layertransparency") checker.setMapRenderer(self.mMapRenderer) myResult = checker.runTest("vector_layertransparency"); myMessage = ('vector layer transparency failed') assert myResult, myMessage
def testVectorFeatureBlending(self): """Test that feature blend modes work for vector layers.""" #Add vector layers to map myLayers = QStringList() myLayers.append(self.mLineLayer.id()) myLayers.append(self.mPolygonLayer.id()) self.mMapRenderer.setLayerSet(myLayers) self.mMapRenderer.setExtent(self.mPointLayer.extent()) self.mPolygonLayer.setBlendMode(QPainter.CompositionMode_Multiply) #Set feature blending for line layer self.mLineLayer.setFeatureBlendMode(QPainter.CompositionMode_Plus) checker = QgsRenderChecker() checker.setControlName("expected_vector_featureblendmodes") checker.setMapRenderer(self.mMapRenderer) myResult = checker.runTest("vector_featureblendmodes"); myMessage = ('vector feature blending failed') assert myResult, myMessage
def renderCheck(self, mismatch=0, imgpath='', grpprefix=''): """Check rendered map canvas or existing image against control image mismatch: number of pixels different from control, and still valid check imgpath: existing image; if present, skips rendering canvas grpprefix: compare test image/rendering against different test group """ if not grpprefix: grpprefix = self._TestGroupPrefix chk = QgsRenderChecker() chk.setControlPathPrefix('expected_' + grpprefix) chk.setControlName(self._Test) chk.setMapRenderer(self._MapRenderer) res = False if imgpath: res = chk.compareImages(self._Test, mismatch, str(imgpath)) else: res = chk.runTest(self._Test, mismatch) if PALREPORT and not res: # don't report ok checks testname = self._TestGroup + ' . ' + self._Test PALREPORTS[testname] = str(chk.report().toLocal8Bit()) msg = '\nRender check failed for "{0}"'.format(self._Test) return res, msg
def testTransparency(self): myPath = os.path.join(unitTestDataPath('raster'), 'band1_float32_noct_epsg4326.tif') myFileInfo = QFileInfo(myPath) myBaseName = myFileInfo.baseName() myRasterLayer = QgsRasterLayer(myPath, myBaseName) myMessage = 'Raster not loaded: %s' % myPath assert myRasterLayer.isValid(), myMessage renderer = QgsSingleBandGrayRenderer(myRasterLayer.dataProvider(), 1) myRasterLayer.setRenderer(renderer) myRasterLayer.setContrastEnhancement( QgsContrastEnhancement.StretchToMinimumMaximum, QgsRaster.ContrastEnhancementMinMax) myContrastEnhancement = myRasterLayer.renderer().contrastEnhancement() # print ("myContrastEnhancement.minimumValue = %.17g" % # myContrastEnhancement.minimumValue()) # print ("myContrastEnhancement.maximumValue = %.17g" % # myContrastEnhancement.maximumValue()) # Unfortunately the minimum/maximum values calculated in C++ and Python # are slightly different (e.g. 3.3999999521443642e+38 x # 3.3999999521444001e+38) # It is not clear where the precision is lost. # We set the same values as C++. myContrastEnhancement.setMinimumValue(-3.3319999287625854e+38) myContrastEnhancement.setMaximumValue(3.3999999521443642e+38) #myType = myRasterLayer.dataProvider().dataType(1); #myEnhancement = QgsContrastEnhancement(myType); myTransparentSingleValuePixelList = [] rasterTransparency = QgsRasterTransparency() myTransparentPixel1 = \ QgsRasterTransparency.TransparentSingleValuePixel() myTransparentPixel1.min = -2.5840000772112106e+38 myTransparentPixel1.max = -1.0879999684602689e+38 myTransparentPixel1.percentTransparent = 50 myTransparentSingleValuePixelList.append(myTransparentPixel1) myTransparentPixel2 = \ QgsRasterTransparency.TransparentSingleValuePixel() myTransparentPixel2.min = 1.359999960575336e+37 myTransparentPixel2.max = 9.520000231087593e+37 myTransparentPixel2.percentTransparent = 70 myTransparentSingleValuePixelList.append(myTransparentPixel2) rasterTransparency.setTransparentSingleValuePixelList( myTransparentSingleValuePixelList) rasterRenderer = myRasterLayer.renderer() assert rasterRenderer rasterRenderer.setRasterTransparency(rasterTransparency) QgsMapLayerRegistry.instance().addMapLayers([ myRasterLayer, ]) myMapRenderer = QgsMapRenderer() myLayers = [] myLayers.append(myRasterLayer.id()) myMapRenderer.setLayerSet(myLayers) myMapRenderer.setExtent(myRasterLayer.extent()) myChecker = QgsRenderChecker() myChecker.setControlName("expected_raster_transparency") myChecker.setMapRenderer(myMapRenderer) myResultFlag = myChecker.runTest("raster_transparency_python") assert myResultFlag, "Raster transparency rendering test failed"
def testTransparency(self): myPath = os.path.join(unitTestDataPath('raster'), 'band1_float32_noct_epsg4326.tif') myFileInfo = QFileInfo(myPath) myBaseName = myFileInfo.baseName() myRasterLayer = QgsRasterLayer(myPath, myBaseName) myMessage = 'Raster not loaded: %s' % myPath assert myRasterLayer.isValid(), myMessage renderer = QgsSingleBandGrayRenderer(myRasterLayer.dataProvider(), 1) myRasterLayer.setRenderer(renderer) myRasterLayer.setContrastEnhancementAlgorithm( QgsContrastEnhancement.StretchToMinimumMaximum, QgsRasterLayer.ContrastEnhancementMinMax) myContrastEnhancement = myRasterLayer.renderer().contrastEnhancement() #print ("myContrastEnhancement.minimumValue = %.17g" % # myContrastEnhancement.minimumValue()) #print ("myContrastEnhancement.maximumValue = %.17g" % # myContrastEnhancement.maximumValue()) # Unfortunately the minimum/maximum values calculated in C++ and Python # are slightly different (e.g. 3.3999999521443642e+38 x # 3.3999999521444001e+38) # It is not clear where the precision is lost. # We set the same values as C++. myContrastEnhancement.setMinimumValue(-3.3319999287625854e+38) myContrastEnhancement.setMaximumValue(3.3999999521443642e+38) #myType = myRasterLayer.dataProvider().dataType(1); #myEnhancement = QgsContrastEnhancement(myType); myTransparentSingleValuePixelList = [] rasterTransparency = QgsRasterTransparency() myTransparentPixel1 = \ QgsRasterTransparency.TransparentSingleValuePixel() myTransparentPixel1.min = -2.5840000772112106e+38 myTransparentPixel1.max = -1.0879999684602689e+38 myTransparentPixel1.percentTransparent = 50 myTransparentSingleValuePixelList.append(myTransparentPixel1) myTransparentPixel2 = \ QgsRasterTransparency.TransparentSingleValuePixel() myTransparentPixel2.min = 1.359999960575336e+37 myTransparentPixel2.max = 9.520000231087593e+37 myTransparentPixel2.percentTransparent = 70 myTransparentSingleValuePixelList.append(myTransparentPixel2) rasterTransparency.setTransparentSingleValuePixelList( myTransparentSingleValuePixelList) rasterRenderer = myRasterLayer.renderer() assert rasterRenderer rasterRenderer.setRasterTransparency(rasterTransparency) QgsMapLayerRegistry.instance().addMapLayers([ myRasterLayer, ]) myMapRenderer = QgsMapRenderer() myLayers = QStringList() myLayers.append(myRasterLayer.id()) myMapRenderer.setLayerSet(myLayers) myMapRenderer.setExtent(myRasterLayer.extent()) myChecker = QgsRenderChecker() myChecker.setControlName("expected_raster_transparency") myChecker.setMapRenderer(myMapRenderer) myResultFlag = myChecker.runTest("raster_transparency_python"); assert myResultFlag, "Raster transparency rendering test failed"
def test_AddPALToVectorLayer(self): """Check if we can set a label field, verify that PAL is assigned and that output is rendered correctly""" # TODO: add UTM PAL-specific shps, with 4326 as on-the-fly cross-check # setCanvasCrs(26913) myShpFile = os.path.join(TEST_DATA_DIR, 'lines.shp') myVectorLayer = QgsVectorLayer(myShpFile, 'Lines', 'ogr') self._MapRegistry.addMapLayer(myVectorLayer) myLayers = QStringList() myLayers.append(myVectorLayer.id()) self._MapRenderer.setLayerSet(myLayers) self._MapRenderer.setExtent(myVectorLayer.extent()) self._Canvas.zoomToFullExtent() # check layer labeling is PAL with customProperty access # should not be activated on layer load myPalSet = myVectorLayer.customProperty("labeling").toString() myMessage = '\nExpected: Empty QString\nGot: %s' % (str(myPalSet)) assert str(myPalSet) == '', myMessage # simulate clicking checkbox, setting label field and clicking apply self._testFont.setPointSize(20) myPalLyr = QgsPalLayerSettings() myPalLyr.enabled = True myPalLyr.fieldName = 'Name' myPalLyr.placement = QgsPalLayerSettings.Line myPalLyr.placementFlags = QgsPalLayerSettings.AboveLine myPalLyr.xQuadOffset = 0 myPalLyr.yQuadOffset = 0 myPalLyr.xOffset = 0 myPalLyr.yOffset = 0 myPalLyr.angleOffset = 0 myPalLyr.centroidWhole = False myPalLyr.textFont = self._testFont myPalLyr.textNamedStyle = QString("Medium") myPalLyr.textColor = Qt.black myPalLyr.textTransp = 0 myPalLyr.previewBkgrdColor = Qt.white myPalLyr.priority = 5 myPalLyr.obstacle = True myPalLyr.dist = 0 myPalLyr.scaleMin = 0 myPalLyr.scaleMax = 0 myPalLyr.bufferSize = 1 myPalLyr.bufferColor = Qt.white myPalLyr.bufferTransp = 0 myPalLyr.bufferNoFill = False myPalLyr.bufferJoinStyle = Qt.RoundJoin myPalLyr.formatNumbers = False myPalLyr.decimals = 3 myPalLyr.plusSign = False myPalLyr.labelPerPart = False myPalLyr.displayAll = True myPalLyr.mergeLines = False myPalLyr.minFeatureSize = 0.0 myPalLyr.vectorScaleFactor = 1.0 myPalLyr.rasterCompressFactor = 1.0 myPalLyr.addDirectionSymbol = False myPalLyr.upsidedownLabels = QgsPalLayerSettings.Upright myPalLyr.fontSizeInMapUnits = False myPalLyr.bufferSizeInMapUnits = False myPalLyr.labelOffsetInMapUnits = True myPalLyr.distInMapUnits = False myPalLyr.wrapChar = "" myPalLyr.preserveRotation = True myPalLyr.writeToLayer(myVectorLayer) # check layer labeling is PAL with customProperty access myPalSet = myVectorLayer.customProperty("labeling").toString() myMessage = '\nExpected: pal\nGot: %s' % (str(myPalSet)) assert str(myPalSet) == 'pal', myMessage # check layer labeling is PAL via engine interface myMessage = '\nCould not get whether PAL enabled from labelingEngine' assert self._PalEngine.willUseLayer(myVectorLayer), myMessage # myChecker = QgsRenderChecker() myChecker.setControlName("expected_pal_aboveLineLabeling") myChecker.setMapRenderer(self._MapRenderer) myResult = myChecker.runTest("pal_aboveLineLabeling_python") myMessage = ('\nVector layer \'above line\' label engine ' 'rendering test failed') assert myResult, myMessage # compare against a straight rendering/save as from QgsMapCanvasMap # unnecessary? works a bit different than QgsRenderChecker, though # myImage = os.path.join(unicode(QDir.tempPath()), # 'render_pal_aboveLineLabeling.png') # self._Map.render() # self._Canvas.saveAsImage(myImage) # myChecker.setRenderedImage(myImage) # myResult = myChecker.compareImages("pal_aboveLineLabeling_python") # myMessage = ('\nVector layer \'above line\' label engine ' # 'comparison to QgsMapCanvasMap.render() test failed') # assert myResult, myMessage self._MapRegistry.removeMapLayer(myVectorLayer.id())