我想在pyqtgraph中使用一条随着鼠标移动的无限线。单击鼠标左键后,函数将返回xposition。我可以通过鼠标左键点击并移动无限线来检索x值。然而,我只是停留在返回x位置。我想等待左键单击,因为我想重复这个过程多次。你知道吗
def addVerticalLineAndGetXOnClick(self):
def changePosVertLine(event):
if self.sceneBoundingRect().contains(event):
mousePoint = self.plotItem.vb.mapSceneToView(event)
line.setPos(mousePoint.x())
def onMouseClick(event):
if event.button() == 1:
self.removeItem(line)
self.scene().sigMouseClicked.disconnect()
self.setMouseTracking(False)
mousePoint = self.plotItem.vb.mapSceneToView(event.scenePos())
self.xPos.emit(mousePoint.x())
penLin = mkPen(color = '#000000', width = 1)
line = LRI(0.,pen = penLin, name= 'singleLineToGetXPos' )
self.addItem(line)
self.setMouseTracking(True)
self.scene().sigMouseMoved.connect(changePosVertLine)
self.scene().sigMouseClicked.connect(onMouseClick)
#wait to return after mouse click and return
"""???"""
目前没有回答
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