本文整理汇总了Python中qgis.core.QgsProcessingModelAlgorithm类的典型用法代码示例。如果您正苦于以下问题:Python QgsProcessingModelAlgorithm类的具体用法?Python QgsProcessingModelAlgorithm怎么用?Python QgsProcessingModelAlgorithm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QgsProcessingModelAlgorithm类的15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
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
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: loadAlgorithms
def loadAlgorithms(self):
if self.is_loading:
return
self.is_loading = True
for definition in self.model_definitions.values():
algorithm = QgsProcessingModelAlgorithm()
if algorithm.loadVariant(definition):
self.addAlgorithm(algorithm)
else:
QgsMessageLog.logMessage(
self.tr('Could not load model from project', 'ProjectProvider'),
self.tr('Processing'), Qgis.Critical)
self.is_loading = False
示例4: read_project
def read_project(self, doc):
"""
Reads the project model definitions from the project DOM document
:param doc: DOM document
"""
self.model_definitions = {}
project_models_nodes = doc.elementsByTagName('projectModels')
if project_models_nodes:
project_models_node = project_models_nodes.at(0)
model_nodes = project_models_node.childNodes()
for n in range(model_nodes.count()):
model_element = model_nodes.at(n).toElement()
definition = QgsXmlUtils.readVariant(model_element)
algorithm = QgsProcessingModelAlgorithm()
if algorithm.loadVariant(definition):
self.model_definitions[algorithm.name()] = definition
self.refreshAlgorithms()
示例5: remove_model
def remove_model(self, model):
"""
Removes a model from the project
:type model: QgsProcessingModelAlgorithm
:param model: model to remove
"""
if model is None:
return
filtered_model_definitions = []
for m in self.model_definitions:
algorithm = QgsProcessingModelAlgorithm()
if algorithm.loadVariant(m) and algorithm.name() == model.name():
# found matching model definition, skip it
continue
filtered_model_definitions.append(m)
self.model_definitions = filtered_model_definitions
self.refreshAlgorithms()
示例6: execute
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7: loadFromFolder
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8: openModel
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.'))
示例9: testDelete
def testDelete(self):
"""
Test deleting a model from the project
"""
p = QgsProject()
provider = ProjectProvider(p)
# add some models
alg = QgsProcessingModelAlgorithm('test name', 'test group')
provider.add_model(alg)
alg2 = QgsProcessingModelAlgorithm('test name2', 'test group2')
provider.add_model(alg2)
self.assertEqual(len(provider.algorithms()), 2)
# try to delete
provider.remove_model(None)
self.assertEqual(len(provider.algorithms()), 2)
# not in provider!
alg3 = QgsProcessingModelAlgorithm('test name3', 'test group')
provider.remove_model(alg3)
self.assertEqual(len(provider.algorithms()), 2)
# delete model actually in project
provider.remove_model(alg)
self.assertEqual(len(provider.algorithms()), 1)
self.assertEqual(provider.algorithms()[0].name(), 'test name2')
# overwrite model
alg2b = QgsProcessingModelAlgorithm('test name2', 'test group2')
alg2b.setHelpContent({'test': 'test'})
provider.add_model(alg2b)
self.assertEqual(len(provider.algorithms()), 1)
self.assertEqual(provider.algorithms()[0].helpContent(), {'test': 'test'})
provider.remove_model(alg2)
self.assertEqual(len(provider.algorithms()), 0)
示例10: testModelerParametersDialogAvailableValuesOfType
def testModelerParametersDialogAvailableValuesOfType(self):
# test getAvailableValuesOfType from ModelerParametersDialog
m = QgsProcessingModelAlgorithm()
string_param_1 = QgsProcessingModelParameter('string')
m.addModelParameter(QgsProcessingParameterString('string'), string_param_1)
string_param_2 = QgsProcessingModelParameter('string2')
m.addModelParameter(QgsProcessingParameterString('string2'), string_param_2)
num_param = QgsProcessingModelParameter('number')
m.addModelParameter(QgsProcessingParameterNumber('number'), num_param)
table_field_param = QgsProcessingModelParameter('field')
m.addModelParameter(QgsProcessingParameterField('field'), table_field_param)
file_param = QgsProcessingModelParameter('file')
m.addModelParameter(QgsProcessingParameterFile('file'), file_param)
dlg = ModelerParametersDialog(m, m)
# test single types
self.assertEqual(set(p.parameterName() for p in dlg.getAvailableValuesOfType(QgsProcessingParameterNumber)),
set(['number']))
self.assertEqual(set(p.parameterName() for p in dlg.getAvailableValuesOfType(QgsProcessingParameterField)),
set(['field']))
self.assertEqual(set(p.parameterName() for p in dlg.getAvailableValuesOfType(QgsProcessingParameterFile)),
set(['file']))
# test multiple types
self.assertEqual(set(p.parameterName() for p in dlg.getAvailableValuesOfType([QgsProcessingParameterString, QgsProcessingParameterNumber, QgsProcessingParameterFile])),
set(['string', 'string2', 'number', 'file']))
示例11: __init__
#.........这里部分代码省略.........
def _mouseReleaseEvent(e):
QGraphicsView.mouseReleaseEvent(self.view, e)
self.view.viewport().setCursor(Qt.ArrowCursor)
def _mousePressEvent(e):
if e.button() == Qt.MidButton:
self.previousMousePos = e.pos()
else:
QGraphicsView.mousePressEvent(self.view, e)
def _mouseMoveEvent(e):
if e.buttons() == Qt.MidButton:
offset = self.previousMousePos - e.pos()
self.previousMousePos = e.pos()
self.view.verticalScrollBar().setValue(self.view.verticalScrollBar().value() + offset.y())
self.view.horizontalScrollBar().setValue(self.view.horizontalScrollBar().value() + offset.x())
else:
QGraphicsView.mouseMoveEvent(self.view, e)
self.view.setDragMode(QGraphicsView.ScrollHandDrag)
self.view.dragEnterEvent = _dragEnterEvent
self.view.dropEvent = _dropEvent
self.view.dragMoveEvent = _dragMoveEvent
self.view.wheelEvent = _wheelEvent
self.view.enterEvent = _enterEvent
self.view.mousePressEvent = _mousePressEvent
self.view.mouseMoveEvent = _mouseMoveEvent
def _mimeDataInput(items):
mimeData = QMimeData()
text = items[0].data(0, Qt.UserRole)
mimeData.setText(text)
return mimeData
self.inputsTree.mimeData = _mimeDataInput
self.inputsTree.setDragDropMode(QTreeWidget.DragOnly)
self.inputsTree.setDropIndicatorShown(True)
self.algorithms_model = ModelerToolboxModel(self, QgsApplication.processingRegistry())
self.algorithmTree.setToolboxProxyModel(self.algorithms_model)
self.algorithmTree.setDragDropMode(QTreeWidget.DragOnly)
self.algorithmTree.setDropIndicatorShown(True)
filters = QgsProcessingToolboxProxyModel.Filters(QgsProcessingToolboxProxyModel.FilterModeler)
if ProcessingConfig.getSetting(ProcessingConfig.SHOW_ALGORITHMS_KNOWN_ISSUES):
filters |= QgsProcessingToolboxProxyModel.FilterShowKnownIssues
self.algorithmTree.setFilters(filters)
if hasattr(self.searchBox, 'setPlaceholderText'):
self.searchBox.setPlaceholderText(QCoreApplication.translate('ModelerDialog', 'Search…'))
if hasattr(self.textName, 'setPlaceholderText'):
self.textName.setPlaceholderText(self.tr('Enter model name here'))
if hasattr(self.textGroup, 'setPlaceholderText'):
self.textGroup.setPlaceholderText(self.tr('Enter group name here'))
# Connect signals and slots
self.inputsTree.doubleClicked.connect(self.addInput)
self.searchBox.textChanged.connect(self.algorithmTree.setFilterString)
self.algorithmTree.doubleClicked.connect(self.addAlgorithm)
# Ctrl+= should also trigger a zoom in action
ctrlEquals = QShortcut(QKeySequence("Ctrl+="), self)
ctrlEquals.activated.connect(self.zoomIn)
self.mActionOpen.triggered.connect(self.openModel)
self.mActionSave.triggered.connect(self.save)
self.mActionSaveAs.triggered.connect(self.saveAs)
self.mActionSaveInProject.triggered.connect(self.saveInProject)
self.mActionZoomIn.triggered.connect(self.zoomIn)
self.mActionZoomOut.triggered.connect(self.zoomOut)
self.mActionZoomActual.triggered.connect(self.zoomActual)
self.mActionZoomToItems.triggered.connect(self.zoomToItems)
self.mActionExportImage.triggered.connect(self.exportAsImage)
self.mActionExportPdf.triggered.connect(self.exportAsPdf)
self.mActionExportSvg.triggered.connect(self.exportAsSvg)
#self.mActionExportPython.triggered.connect(self.exportAsPython)
self.mActionEditHelp.triggered.connect(self.editHelp)
self.mActionRun.triggered.connect(self.runModel)
if model is not None:
self.model = model.create()
self.model.setSourceFilePath(model.sourceFilePath())
self.textGroup.setText(self.model.group())
self.textName.setText(self.model.displayName())
self.repaintModel()
else:
self.model = QgsProcessingModelAlgorithm()
self.model.setProvider(QgsApplication.processingRegistry().providerById('model'))
self.update_variables_gui()
self.fillInputsTree()
self.view.centerOn(0, 0)
self.help = None
self.hasChanged = False
示例12: ModelerDialog
#.........这里部分代码省略.........
# Connect signals and slots
self.inputsTree.doubleClicked.connect(self.addInput)
self.searchBox.textChanged.connect(self.algorithmTree.setFilterString)
self.algorithmTree.doubleClicked.connect(self.addAlgorithm)
# Ctrl+= should also trigger a zoom in action
ctrlEquals = QShortcut(QKeySequence("Ctrl+="), self)
ctrlEquals.activated.connect(self.zoomIn)
self.mActionOpen.triggered.connect(self.openModel)
self.mActionSave.triggered.connect(self.save)
self.mActionSaveAs.triggered.connect(self.saveAs)
self.mActionSaveInProject.triggered.connect(self.saveInProject)
self.mActionZoomIn.triggered.connect(self.zoomIn)
self.mActionZoomOut.triggered.connect(self.zoomOut)
self.mActionZoomActual.triggered.connect(self.zoomActual)
self.mActionZoomToItems.triggered.connect(self.zoomToItems)
self.mActionExportImage.triggered.connect(self.exportAsImage)
self.mActionExportPdf.triggered.connect(self.exportAsPdf)
self.mActionExportSvg.triggered.connect(self.exportAsSvg)
#self.mActionExportPython.triggered.connect(self.exportAsPython)
self.mActionEditHelp.triggered.connect(self.editHelp)
self.mActionRun.triggered.connect(self.runModel)
if model is not None:
self.model = model.create()
self.model.setSourceFilePath(model.sourceFilePath())
self.textGroup.setText(self.model.group())
self.textName.setText(self.model.displayName())
self.repaintModel()
else:
self.model = QgsProcessingModelAlgorithm()
self.model.setProvider(QgsApplication.processingRegistry().providerById('model'))
self.update_variables_gui()
self.fillInputsTree()
self.view.centerOn(0, 0)
self.help = None
self.hasChanged = False
def closeEvent(self, evt):
settings = QgsSettings()
settings.setValue("/Processing/stateModeler", self.saveState())
settings.setValue("/Processing/geometryModeler", self.saveGeometry())
if self.hasChanged:
ret = QMessageBox.question(
self, self.tr('Save Model?'),
self.tr('There are unsaved changes in this model. Do you want to keep those?'),
QMessageBox.Save | QMessageBox.Cancel | QMessageBox.Discard, QMessageBox.Cancel)
if ret == QMessageBox.Save:
self.saveModel(False)
evt.accept()
elif ret == QMessageBox.Discard:
evt.accept()
else:
evt.ignore()
else:
evt.accept()
def editHelp(self):
示例13: __init__
#.........这里部分代码省略.........
QGraphicsView.mouseReleaseEvent(self.view, e)
self.view.viewport().setCursor(Qt.ArrowCursor)
def _mousePressEvent(e):
if e.button() == Qt.MidButton:
self.previousMousePos = e.pos()
else:
QGraphicsView.mousePressEvent(self.view, e)
def _mouseMoveEvent(e):
if e.buttons() == Qt.MidButton:
offset = self.previousMousePos - e.pos()
self.previousMousePos = e.pos()
self.view.verticalScrollBar().setValue(self.view.verticalScrollBar().value() + offset.y())
self.view.horizontalScrollBar().setValue(self.view.horizontalScrollBar().value() + offset.x())
else:
QGraphicsView.mouseMoveEvent(self.view, e)
self.view.setDragMode(QGraphicsView.ScrollHandDrag)
self.view.dragEnterEvent = _dragEnterEvent
self.view.dropEvent = _dropEvent
self.view.dragMoveEvent = _dragMoveEvent
self.view.wheelEvent = _wheelEvent
self.view.enterEvent = _enterEvent
self.view.mousePressEvent = _mousePressEvent
self.view.mouseMoveEvent = _mouseMoveEvent
def _mimeDataInput(items):
mimeData = QMimeData()
text = items[0].text(0)
mimeData.setText(text)
return mimeData
self.inputsTree.mimeData = _mimeDataInput
self.inputsTree.setDragDropMode(QTreeWidget.DragOnly)
self.inputsTree.setDropIndicatorShown(True)
def _mimeDataAlgorithm(items):
item = items[0]
mimeData = None
if isinstance(item, TreeAlgorithmItem):
mimeData = QMimeData()
mimeData.setText(item.alg.id())
return mimeData
self.algorithmTree.mimeData = _mimeDataAlgorithm
self.algorithmTree.setDragDropMode(QTreeWidget.DragOnly)
self.algorithmTree.setDropIndicatorShown(True)
if hasattr(self.searchBox, 'setPlaceholderText'):
self.searchBox.setPlaceholderText(QCoreApplication.translate('ModelerDialog', 'Search…'))
if hasattr(self.textName, 'setPlaceholderText'):
self.textName.setPlaceholderText(self.tr('Enter model name here'))
if hasattr(self.textGroup, 'setPlaceholderText'):
self.textGroup.setPlaceholderText(self.tr('Enter group name here'))
# Connect signals and slots
self.inputsTree.doubleClicked.connect(self.addInput)
self.searchBox.textChanged.connect(self.textChanged)
self.algorithmTree.doubleClicked.connect(self.addAlgorithm)
# Ctrl+= should also trigger a zoom in action
ctrlEquals = QShortcut(QKeySequence("Ctrl+="), self)
ctrlEquals.activated.connect(self.zoomIn)
self.mActionOpen.triggered.connect(self.openModel)
self.mActionSave.triggered.connect(self.save)
self.mActionSaveAs.triggered.connect(self.saveAs)
self.mActionZoomIn.triggered.connect(self.zoomIn)
self.mActionZoomOut.triggered.connect(self.zoomOut)
self.mActionZoomActual.triggered.connect(self.zoomActual)
self.mActionZoomToItems.triggered.connect(self.zoomToItems)
self.mActionExportImage.triggered.connect(self.exportAsImage)
self.mActionExportPdf.triggered.connect(self.exportAsPdf)
self.mActionExportSvg.triggered.connect(self.exportAsSvg)
#self.mActionExportPython.triggered.connect(self.exportAsPython)
self.mActionEditHelp.triggered.connect(self.editHelp)
self.mActionRun.triggered.connect(self.runModel)
if model is not None:
self.model = model.create()
self.model.setSourceFilePath(model.sourceFilePath())
self.textGroup.setText(self.model.group())
self.textName.setText(self.model.displayName())
self.repaintModel()
else:
self.model = QgsProcessingModelAlgorithm()
self.model.setProvider(QgsApplication.processingRegistry().providerById('model'))
self.fillInputsTree()
self.fillTreeUsingProviders()
self.view.centerOn(0, 0)
self.help = None
self.hasChanged = False
示例14: ModelerDialog
#.........这里部分代码省略.........
self.textGroup.setPlaceholderText(self.tr('Enter group name here'))
# Connect signals and slots
self.inputsTree.doubleClicked.connect(self.addInput)
self.searchBox.textChanged.connect(self.textChanged)
self.algorithmTree.doubleClicked.connect(self.addAlgorithm)
# Ctrl+= should also trigger a zoom in action
ctrlEquals = QShortcut(QKeySequence("Ctrl+="), self)
ctrlEquals.activated.connect(self.zoomIn)
self.mActionOpen.triggered.connect(self.openModel)
self.mActionSave.triggered.connect(self.save)
self.mActionSaveAs.triggered.connect(self.saveAs)
self.mActionZoomIn.triggered.connect(self.zoomIn)
self.mActionZoomOut.triggered.connect(self.zoomOut)
self.mActionZoomActual.triggered.connect(self.zoomActual)
self.mActionZoomToItems.triggered.connect(self.zoomToItems)
self.mActionExportImage.triggered.connect(self.exportAsImage)
self.mActionExportPdf.triggered.connect(self.exportAsPdf)
self.mActionExportSvg.triggered.connect(self.exportAsSvg)
#self.mActionExportPython.triggered.connect(self.exportAsPython)
self.mActionEditHelp.triggered.connect(self.editHelp)
self.mActionRun.triggered.connect(self.runModel)
if model is not None:
self.model = model.create()
self.model.setSourceFilePath(model.sourceFilePath())
self.textGroup.setText(self.model.group())
self.textName.setText(self.model.displayName())
self.repaintModel()
else:
self.model = QgsProcessingModelAlgorithm()
self.model.setProvider(QgsApplication.processingRegistry().providerById('model'))
self.fillInputsTree()
self.fillTreeUsingProviders()
self.view.centerOn(0, 0)
self.help = None
self.hasChanged = False
def closeEvent(self, evt):
settings = QgsSettings()
settings.setValue("/Processing/stateModeler", self.saveState())
settings.setValue("/Processing/geometryModeler", self.saveGeometry())
if self.hasChanged:
ret = QMessageBox.question(
self, self.tr('Save Model?'),
self.tr('There are unsaved changes in this model. Do you want to keep those?'),
QMessageBox.Save | QMessageBox.Cancel | QMessageBox.Discard, QMessageBox.Cancel)
if ret == QMessageBox.Save:
self.saveModel(False)
evt.accept()
elif ret == QMessageBox.Discard:
evt.accept()
else:
evt.ignore()
else:
evt.accept()
def editHelp(self):
示例15: ModelerDialog
#.........这里部分代码省略.........
self.algorithmTree.doubleClicked.connect(self.addAlgorithm)
# Ctrl+= should also trigger a zoom in action
ctrlEquals = QShortcut(QKeySequence("Ctrl+="), self)
ctrlEquals.activated.connect(self.zoomIn)
try:
iconSize = int(settings.value("IconSize", 24))
except:
iconSize = 24
self.mToolbar.setIconSize(QSize(iconSize, iconSize))
self.mActionOpen.triggered.connect(self.openModel)
self.mActionSave.triggered.connect(self.save)
self.mActionSaveAs.triggered.connect(self.saveAs)
self.mActionZoomIn.triggered.connect(self.zoomIn)
self.mActionZoomOut.triggered.connect(self.zoomOut)
self.mActionZoomActual.triggered.connect(self.zoomActual)
self.mActionZoomToItems.triggered.connect(self.zoomToItems)
self.mActionExportImage.triggered.connect(self.exportAsImage)
self.mActionExportPdf.triggered.connect(self.exportAsPdf)
self.mActionExportSvg.triggered.connect(self.exportAsSvg)
self.mActionExportPython.triggered.connect(self.exportAsPython)
self.mActionEditHelp.triggered.connect(self.editHelp)
self.mActionRun.triggered.connect(self.runModel)
if model is not None:
self.model = model.create()
self.model.setSourceFilePath(model.sourceFilePath())
self.textGroup.setText(self.model.group())
self.textName.setText(self.model.displayName())
self.repaintModel()
else:
self.model = QgsProcessingModelAlgorithm()
self.model.setProvider(QgsApplication.processingRegistry().providerById('model'))
self.fillInputsTree()
self.fillAlgorithmTree()
self.view.centerOn(0, 0)
self.help = None
self.hasChanged = False
def closeEvent(self, evt):
settings = QgsSettings()
settings.setValue("/Processing/stateModeler", self.saveState())
settings.setValue("/Processing/geometryModeler", self.saveGeometry())
if self.hasChanged:
ret = QMessageBox.question(
self, self.tr('Save?'),
self.tr('There are unsaved changes in this model, do you want to keep those?'),
QMessageBox.Save | QMessageBox.Cancel | QMessageBox.Discard, QMessageBox.Cancel)
if ret == QMessageBox.Save:
self.saveModel(False)
evt.accept()
elif ret == QMessageBox.Discard:
evt.accept()
else:
evt.ignore()
else:
evt.accept()
def editHelp(self):