我是一個新的pyqtgraph用戶,請按照http://www.pyqtgraph.org/documentation/how_to_use.html中的說明嘗試「在PyQt應用程序中嵌入小部件」。在我的例子中,我提倡的圖形視圖來PlotWidget,然後另存爲「test2.ui」,也遵循「十字/鼠標交互」的例子,我的代碼:如何獲取鼠標位置
import sys
import numpy
from PyQt5 import QtCore, QtGui,uic,QtWidgets
from PyQt5.QtWidgets import *
import pyqtgraph as pg
import os
hw,QtBaseClass=uic.loadUiType("test.ui")
def gaussian(A, B, x):
return A * numpy.exp(-(x/(2. * B)) ** 2.)
class MyApp(QtWidgets.QMainWindow, hw):
def __init__(self):
super().__init__()
self.setupUi(self)
winSize=self.size()
self.view.resize(winSize.width(),winSize.height())
x = numpy.linspace(-5., 5., 10000)
y =gaussian(5.,0.2, x)
self.p=self.view.plot(x,y)
proxy = pg.SignalProxy(self.view.scene().sigMouseMoved, rateLimit=60, slot=self.mouseMoved)
self.view.enableAutoRange("xy", True)
def mouseMoved(evt):
print("mouseTest")
mousePoint = self.p.vb.mapSceneToView(evt[0])
label.setText(
"<span style='font-size: 14pt; color: white'> x = %0.2f, <span style='color: white'> y = %0.2f</span>" % (
mousePoint.x(), mousePoint.y()))
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
window = MyApp()
window.show()
sys.exit(app.exec_())
似乎沒有得到鼠標移動事件; 後變化 代理= pg.SignalProxy(self.view.scene()。sigMouseMoved,rateLimit = 60,空位= self.mouseMoved) 到 self.view.scene()。sigMouseMoved.connect(self.mouseMoved), 輸出「MouseTest」,但程序imediatly崩潰。 任何一個可以給我一些幫助