本文整理汇总了Python中processing.modeler.ModelerGraphicItem.ModelerGraphicItem.addArrow方法的典型用法代码示例。如果您正苦于以下问题：Python ModelerGraphicItem.addArrow方法的具体用法？Python ModelerGraphicItem.addArrow怎么用？Python ModelerGraphicItem.addArrow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processing.modeler.ModelerGraphicItem.ModelerGraphicItem的用法示例。
在下文中一共展示了ModelerGraphicItem.addArrow方法的2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: paintModel
# 需要导入模块: from processing.modeler.ModelerGraphicItem import ModelerGraphicItem [as 别名]
# 或者: from processing.modeler.ModelerGraphicItem.ModelerGraphicItem import addArrow [as 别名]
def paintModel(self, model, controls=True):
self.model = model
context = createContext()
# Inputs
for inp in list(model.parameterComponents().values()):
item = ModelerGraphicItem(inp, model, controls, scene=self)
item.setFlag(QGraphicsItem.ItemIsMovable, True)
item.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.addItem(item)
item.setPos(inp.position().x(), inp.position().y())
self.paramItems[inp.parameterName()] = item
# Input dependency arrows
for input_name in list(model.parameterComponents().keys()):
idx = 0
parameter_def = model.parameterDefinition(input_name)
if hasattr(parameter_def, 'parentLayerParameterName') and parameter_def.parentLayerParameterName():
parent_name = parameter_def.parentLayerParameterName()
if input_name in self.paramItems and parent_name in self.paramItems:
input_item = self.paramItems[input_name]
parent_item = self.paramItems[parent_name]
arrow = ModelerArrowItem(parent_item, -1, input_item, -1)
input_item.addArrow(arrow)
parent_item.addArrow(arrow)
arrow.setPenStyle(Qt.DotLine)
arrow.updatePath()
self.addItem(arrow)
# We add the algs
for alg in list(model.childAlgorithms().values()):
item = ModelerGraphicItem(alg, model, controls, scene=self)
item.setFlag(QGraphicsItem.ItemIsMovable, True)
item.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.addItem(item)
item.setPos(alg.position().x(), alg.position().y())
self.algItems[alg.childId()] = item
# And then the arrows
for alg in list(model.childAlgorithms().values()):
idx = 0
for parameter in alg.algorithm().parameterDefinitions():
if not parameter.isDestination() and not parameter.flags() & QgsProcessingParameterDefinition.FlagHidden:
if parameter.name() in alg.parameterSources():
sources = alg.parameterSources()[parameter.name()]
else:
sources = []
for source in sources:
sourceItems = self.getItemsFromParamValue(source, alg.childId(), context)
for sourceItem, sourceIdx in sourceItems:
arrow = ModelerArrowItem(sourceItem, sourceIdx, self.algItems[alg.childId()], idx)
sourceItem.addArrow(arrow)
self.algItems[alg.childId()].addArrow(arrow)
arrow.updatePath()
self.addItem(arrow)
idx += 1
for depend in alg.dependencies():
arrow = ModelerArrowItem(self.algItems[depend], -1,
self.algItems[alg.childId()], -1)
self.algItems[depend].addArrow(arrow)
self.algItems[alg.childId()].addArrow(arrow)
arrow.updatePath()
self.addItem(arrow)
# And finally the outputs
for alg in list(model.childAlgorithms().values()):
outputs = alg.modelOutputs()
outputItems = {}
idx = 0
for key, out in outputs.items():
if out is not None:
item = ModelerGraphicItem(out, model, controls, scene=self)
item.setFlag(QGraphicsItem.ItemIsMovable, True)
item.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.addItem(item)
pos = out.position()
if pos is None:
pos = (alg.position() + QPointF(ModelerGraphicItem.BOX_WIDTH, 0) +
self.algItems[alg.childId()].getLinkPointForOutput(idx))
item.setPos(pos)
outputItems[key] = item
arrow = ModelerArrowItem(self.algItems[alg.childId()], idx, item,
-1)
self.algItems[alg.childId()].addArrow(arrow)
item.addArrow(arrow)
arrow.updatePath()
self.addItem(arrow)
idx += 1
else:
outputItems[key] = None
self.outputItems[alg.childId()] = outputItems示例2: paintModel
# 需要导入模块: from processing.modeler.ModelerGraphicItem import ModelerGraphicItem [as 别名]
# 或者: from processing.modeler.ModelerGraphicItem.ModelerGraphicItem import addArrow [as 别名]
def paintModel(self, model, controls=True):
self.model = model
# Inputs
for inp in list(model.inputs.values()):
item = ModelerGraphicItem(inp, model, controls)
item.setFlag(QGraphicsItem.ItemIsMovable, True)
item.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.addItem(item)
item.setPos(inp.pos.x(), inp.pos.y())
self.paramItems[inp.param.name] = item
# We add the algs
for alg in list(model.algs.values()):
item = ModelerGraphicItem(alg, model, controls)
item.setFlag(QGraphicsItem.ItemIsMovable, True)
item.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.addItem(item)
item.setPos(alg.pos.x(), alg.pos.y())
self.algItems[alg.modeler_name] = item
# And then the arrows
for alg in list(model.algs.values()):
idx = 0
for parameter in alg.algorithm.parameters:
if not parameter.hidden:
if parameter.name in alg.params:
value = alg.params[parameter.name]
else:
value = None
sourceItems = self.getItemsFromParamValue(value)
for sourceItem, sourceIdx in sourceItems:
arrow = ModelerArrowItem(sourceItem, sourceIdx, self.algItems[alg.modeler_name], idx)
sourceItem.addArrow(arrow)
self.algItems[alg.modeler_name].addArrow(arrow)
arrow.updatePath()
self.addItem(arrow)
idx += 1
for depend in alg.dependencies:
arrow = ModelerArrowItem(self.algItems[depend], -1,
self.algItems[alg.modeler_name], -1)
self.algItems[depend].addArrow(arrow)
self.algItems[alg.modeler_name].addArrow(arrow)
arrow.updatePath()
self.addItem(arrow)
# And finally the outputs
for alg in list(model.algs.values()):
outputs = alg.outputs
outputItems = {}
idx = 0
for key in outputs:
out = outputs[key]
if out is not None:
item = ModelerGraphicItem(out, model, controls)
item.setFlag(QGraphicsItem.ItemIsMovable, True)
item.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.addItem(item)
pos = alg.outputs[key].pos
if pos is None:
pos = (alg.pos + QPointF(ModelerGraphicItem.BOX_WIDTH, 0) +
self.algItems[alg.modeler_name].getLinkPointForOutput(idx))
item.setPos(pos)
outputItems[key] = item
arrow = ModelerArrowItem(self.algItems[alg.modeler_name], idx, item,
-1)
self.algItems[alg.modeler_name].addArrow(arrow)
item.addArrow(arrow)
arrow.updatePath()
self.addItem(arrow)
idx += 1
else:
outputItems[key] = None
self.outputItems[alg.modeler_name] = outputItems