本文整理汇总了Python中qgis.analysis.QgsRelief类的典型用法代码示例。如果您正苦于以下问题:Python QgsRelief类的具体用法?Python QgsRelief怎么用?Python QgsRelief使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了QgsRelief类的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Python代码示例。
示例1: on_btnAuto_clicked
def on_btnAuto_clicked(self):
if self.layer is None:
return
relief = QgsRelief(self.layer, system.getTempFilename(), 'GTiff')
colors = relief.calculateOptimizedReliefClasses()
self.populateColors(colors)
开发者ID:cayetanobv,项目名称:QGIS,代码行数:7,代码来源:ReliefColorsWidget.py
示例2: processAlgorithm
def processAlgorithm(self, feedback):
inputFile = self.getParameterValue(self.INPUT_LAYER)
zFactor = self.getParameterValue(self.Z_FACTOR)
automaticColors = self.getParameterValue(self.AUTO_COLORS)
colors = self.getParameterValue(self.COLORS)
outputFile = self.getOutputValue(self.OUTPUT_LAYER)
frequencyDistribution = self.getOutputValue(self.FREQUENCY_DISTRIBUTION)
outputFormat = raster.formatShortNameFromFileName(outputFile)
relief = QgsRelief(inputFile, outputFile, outputFormat)
if automaticColors:
reliefColors = relief.calculateOptimizedReliefClasses()
else:
if colors is None:
raise GeoAlgorithmExecutionException(
self.tr('Specify relief colors or activate "Generate relief classes automatically" option.'))
reliefColors = []
for c in colors.split(';'):
v = c.split(',')
color = QgsRelief.ReliefColor(QColor(int(v[2]), int(v[3]), int(v[4])),
float(v[0]),
float(v[1]))
reliefColors.append(color)
relief.setReliefColors(reliefColors)
relief.setZFactor(zFactor)
relief.exportFrequencyDistributionToCsv(frequencyDistribution)
relief.processRaster(None)
开发者ID:cayetanobv,项目名称:QGIS,代码行数:31,代码来源:Relief.py
示例3: processAlgorithm
def processAlgorithm(self, parameters, context, feedback):
inputFile = self.parameterAsRasterLayer(parameters, self.INPUT, context).source()
zFactor = self.parameterAsDouble(parameters, self.Z_FACTOR, context)
automaticColors = self.parameterAsBoolean(parameters, self.AUTO_COLORS, context)
outputFile = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
frequencyDistribution = self.parameterAsFileOutput(parameters, self.FREQUENCY_DISTRIBUTION, context)
outputFormat = QgsRasterFileWriter.driverForExtension(os.path.splitext(outputFile)[1])
relief = QgsRelief(inputFile, outputFile, outputFormat)
if automaticColors:
reliefColors = relief.calculateOptimizedReliefClasses()
else:
colors = ParameterReliefColors.valueToColors(parameters[self.COLORS])
if colors is None or len(colors) == 0:
raise QgsProcessingException(
self.tr('Specify relief colors or activate "Generate relief classes automatically" option.'))
reliefColors = []
for c in colors:
v = c.split(',')
color = QgsRelief.ReliefColor(QColor(int(v[2]), int(v[3]), int(v[4])),
float(v[0]),
float(v[1]))
reliefColors.append(color)
relief.setReliefColors(reliefColors)
relief.setZFactor(zFactor)
if frequencyDistribution:
relief.exportFrequencyDistributionToCsv(frequencyDistribution)
relief.processRaster(feedback)
return {self.OUTPUT: outputFile, self.FREQUENCY_DISTRIBUTION: frequencyDistribution}
开发者ID:alexbruy,项目名称:QGIS,代码行数:34,代码来源:Relief.py
示例4: processAlgorithm
def processAlgorithm(self, progress):
inputFile = self.getParameterValue(self.INPUT_LAYER)
zFactor = self.getParameterValue(self.Z_FACTOR)
outputFile = self.getOutputValue(self.OUTPUT_LAYER)
frequencyDistribution = self.getOutputValue(self.FREQUENCY_DISTRIBUTION)
outputFormat = raster.formatShortNameFromFileName(outputFile)
relief = QgsRelief(inputFile, outputFile, outputFormat)
colors = relief.calculateOptimizedReliefClasses()
relief.setReliefColors(colors)
relief.setZFactor(zFactor)
relief.exportFrequencyDistributionToCsv(frequencyDistribution)
relief.processRaster(None)
开发者ID:liminlu0314,项目名称:QGIS,代码行数:14,代码来源:ReliefAuto.py
注:本文中的qgis.analysis.QgsRelief类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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