在Pyqtgraph中,可以通过以下步骤将平移事件从滚轮拖动改为鼠标右键拖动:
from pyqtgraph.Qt import QtGui, QtCore
import pyqtgraph as pg
pg.PlotWidget
的自定义类,并重写mousePressEvent
、mouseMoveEvent
和mouseReleaseEvent
方法:class CustomPlotWidget(pg.PlotWidget):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.setMouseTracking(True)
self.dragging = False
self.drag_start = None
def mousePressEvent(self, event):
if event.button() == QtCore.Qt.RightButton:
self.dragging = True
self.drag_start = event.pos()
def mouseMoveEvent(self, event):
if self.dragging:
delta = event.pos() - self.drag_start
self.getViewBox().translateBy(delta.x(), delta.y())
self.drag_start = event.pos()
def mouseReleaseEvent(self, event):
if event.button() == QtCore.Qt.RightButton:
self.dragging = False
CustomPlotWidget
添加到窗口中:app = QtGui.QApplication([])
win = QtGui.QMainWindow()
plot_widget = CustomPlotWidget()
win.setCentralWidget(plot_widget)
win.show()
通过以上步骤,我们成功将平移事件从滚轮拖动改为鼠标右键拖动。你可以根据自己的需求进行进一步的定制和优化。
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