本文整理汇总了Python中qgis.core.QgsProcessingModelAlgorithm.fromFile方法的典型用法代码示例。如果您正苦于以下问题：Python QgsProcessingModelAlgorithm.fromFile方法的具体用法？Python QgsProcessingModelAlgorithm.fromFile怎么用？Python QgsProcessingModelAlgorithm.fromFile使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类qgis.core.QgsProcessingModelAlgorithm的用法示例。
在下文中一共展示了QgsProcessingModelAlgorithm.fromFile方法的5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，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: createDataItem
# 需要导入模块: from qgis.core import QgsProcessingModelAlgorithm [as 别名]
# 或者: from qgis.core.QgsProcessingModelAlgorithm import fromFile [as 别名]
def createDataItem(self, path, parentItem):
file_info = QFileInfo(path)
if file_info.suffix().lower() == 'model3':
alg = QgsProcessingModelAlgorithm()
if alg.fromFile(path):
return ProcessingModelItem(parentItem, alg.name(), path)
return None示例2: runAlg
# 需要导入模块: from qgis.core import QgsProcessingModelAlgorithm [as 别名]
# 或者: from qgis.core.QgsProcessingModelAlgorithm import fromFile [as 别名]
def runAlg(file):
alg = QgsProcessingModelAlgorithm()
if not alg.fromFile(file):
return False
alg.setProvider(QgsApplication.processingRegistry().providerById('model'))
dlg = AlgorithmDialog(alg)
dlg.show()
return True示例3: execute
# 需要导入模块: from qgis.core import QgsProcessingModelAlgorithm [as 别名]
# 或者: from qgis.core.QgsProcessingModelAlgorithm import fromFile [as 别名]
def execute(self):
settings = QgsSettings()
lastDir = settings.value('Processing/lastModelsDir', '')
filename, selected_filter = QFileDialog.getOpenFileName(self.toolbox,
self.tr('Open Model', 'AddModelFromFileAction'), lastDir,
self.tr('Processing models (*.model3 *.MODEL3)', 'AddModelFromFileAction'))
if filename:
settings.setValue('Processing/lastModelsDir',
QFileInfo(filename).absoluteDir().absolutePath())
alg = QgsProcessingModelAlgorithm()
if not alg.fromFile(filename):
QMessageBox.warning(
self.toolbox,
self.tr('Open Model', 'AddModelFromFileAction'),
self.tr('The selected file does not contain a valid model', 'AddModelFromFileAction'))
return
destFilename = os.path.join(ModelerUtils.modelsFolders()[0], os.path.basename(filename))
shutil.copyfile(filename, destFilename)
QgsApplication.processingRegistry().providerById('model').refreshAlgorithms()示例4: loadFromFolder
# 需要导入模块: from qgis.core import QgsProcessingModelAlgorithm [as 别名]
# 或者: from qgis.core.QgsProcessingModelAlgorithm import fromFile [as 别名]
def loadFromFolder(self, folder):
if not os.path.exists(folder):
return
for path, subdirs, files in os.walk(folder):
for descriptionFile in files:
if descriptionFile.endswith('model3'):
try:
fullpath = os.path.join(path, descriptionFile)
alg = QgsProcessingModelAlgorithm()
if alg.fromFile(fullpath):
if alg.name():
alg.setSourceFilePath(fullpath)
self.algs.append(alg)
else:
QgsMessageLog.logMessage(self.tr('Could not load model {0}', 'ModelerAlgorithmProvider').format(descriptionFile),
self.tr('Processing'), QgsMessageLog.CRITICAL)
except WrongModelException as e:
QgsMessageLog.logMessage(self.tr('Could not load model {0}\n{1}', 'ModelerAlgorithmProvider').format(descriptionFile, e.msg),
self.tr('Processing'), QgsMessageLog.CRITICAL)示例5: openModel
# 需要导入模块: from qgis.core import QgsProcessingModelAlgorithm [as 别名]
# 或者: from qgis.core.QgsProcessingModelAlgorithm import fromFile [as 别名]
def openModel(self):
filename, selected_filter = QFileDialog.getOpenFileName(self,
self.tr('Open Model'),
ModelerUtils.modelsFolders()[0],
self.tr('Processing models (*.model3 *.MODEL3)'))
if filename:
alg = QgsProcessingModelAlgorithm()
if alg.fromFile(filename):
self.model = alg
self.model.setProvider(QgsApplication.processingRegistry().providerById('model'))
self.textGroup.setText(alg.group())
self.textName.setText(alg.name())
self.repaintModel()
self.view.centerOn(0, 0)
self.hasChanged = False
else:
QgsMessageLog.logMessage(self.tr('Could not load model {0}').format(filename),
self.tr('Processing'),
QgsMessageLog.CRITICAL)
QMessageBox.critical(self, self.tr('Could not open model'),
self.tr('The selected model could not be loaded.\n'
'See the log for more information.'))