Python 在pyqtgraph中使用AxisItem打开栅格会导致轴缩放中断

Python 在pyqtgraph中使用AxisItem打开栅格会导致轴缩放中断,python,pyqt,pyqtgraph,Python,Pyqt,Pyqtgraph,我对这个项目有困难。一旦我同时启用x和y轴网,x轴就无法通过缩放/平移功能进行缩放。有什么想法吗 from PyQt4 import QtCore, QtGui from pyqtgraph import Point import pyqtgraph as pg pg.setConfigOption('background', 'w') pg.setConfigOption('foreground', 'k') class plotClass(QtGui.QMainWindow):

我对这个项目有困难。一旦我同时启用x和y轴网,x轴就无法通过缩放/平移功能进行缩放。有什么想法吗

from PyQt4 import QtCore, QtGui 
from pyqtgraph import Point 
import pyqtgraph as pg


pg.setConfigOption('background', 'w')
pg.setConfigOption('foreground', 'k')

class plotClass(QtGui.QMainWindow):  
    def setupUi(self, MainWindow):

        self.centralwidget = QtGui.QWidget(MainWindow)      
        MainWindow.resize(1900, 1000)

        self.viewbox = pg.GraphicsView(MainWindow, useOpenGL=None, background='default')
        self.viewbox.setGeometry(QtCore.QRect(0, 0, 1600, 1000))

        self.layout = pg.GraphicsLayout()
        self.viewbox.setCentralWidget(self.layout)
        self.viewbox.show()

        self.view = self.layout.addViewBox()

        self.axis1 = pg.AxisItem('bottom', linkView=self.view, parent=self.layout)
        self.axis2 = pg.AxisItem('right', linkView=self.view, parent=self.layout)

        self.axis1.setGrid(255)
        self.axis2.setGrid(255)

        self.layout.addItem(self.axis1, row=1, col=0)
        self.layout.addItem(self.axis2, row=0, col=1)

if __name__== "__main__":
    import sys
    app = QtGui.QApplication(sys.argv)
    MainWindow = QtGui.QMainWindow()
    ui = plotClass()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

看你最后的评论,考虑一下这个选项:

pyqtgraph examples文件夹包含一个“GraphItem.py”示例,该示例仅通过ViewBox向窗口添加和显示GraphItem对象。但是,它们不使用网格,因此如果要使用带有GraphItem的网格,只需先添加一个PlotItem(它已经有一个关联的ViewBox…您猜到了,…网格的AxisItems!),。。。然后让ViewBox添加您的石墨。修改后的GraphItem.py如下所示(附带showGrid):


我对此进行了测试,启用网格后滚动/缩放仍然有效,因此仍然不确定为什么用其他方法不起作用,但有时找到另一种方法是最好的答案:)

你能澄清你的最终意图吗?目前您没有显示任何内容,因此很难缩小范围。如果您使用setGrid命令,我可以确认即使在他们设计的示例(../examples/ViewBox.py)上也会出现这种情况。但是,我不确定您是否真的需要直接访问setGrid。例如,如果您最终要添加一个实际的绘图,那么PlotItem对象有一个showGrid方法,它可以正确地执行此操作,而不会把事情搞砸。我的最终目的是使用graphItem()显示大型数据集。非常感谢!我尝试了一些类似的方法,但无法使其工作,然后我让一个viewbox覆盖另一个,并遇到了更多的问题。
import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import numpy as np

# Enable antialiasing for prettier plots
pg.setConfigOptions(antialias=True)

w = pg.GraphicsWindow()
w.setWindowTitle('pyqtgraph example: GraphItem')

### comment out their add of the viewbox
### since the PlotItem we're adding will have it's 
### own ViewBox

#v = w.addViewBox()


pItem1 = w.addPlot()  # this is our new PlotItem
v = pItem1.getViewBox()  # get the PlotItem's ViewBox
v.setAspectLocked()  # same as before

g = pg.GraphItem() # same as before
v.addItem(g)  # same as before

pItem1.showGrid(x=True,y=True)  # now we can turn on the grid

### remaining code is the same as their example

## Define positions of nodes
pos = np.array([
    [0,0],
    [10,0],
    [0,10],
    [10,10],
    [5,5],
    [15,5]
    ])

## Define the set of connections in the graph
adj = np.array([
    [0,1],
    [1,3],
    [3,2],
    [2,0],
    [1,5],
    [3,5],
    ])

## Define the symbol to use for each node (this is optional)
symbols = ['o','o','o','o','t','+']

## Define the line style for each connection (this is optional)
lines = np.array([
    (255,0,0,255,1),
    (255,0,255,255,2),
    (255,0,255,255,3),
    (255,255,0,255,2),
    (255,0,0,255,1),
    (255,255,255,255,4),
    ], dtype=[('red',np.ubyte),('green',np.ubyte),('blue',np.ubyte),('alpha',np.ubyte),('width',float)])

## Update the graph
g.setData(pos=pos, adj=adj, pen=lines, size=1, symbol=symbols, pxMode=False)


## Start Qt event loop unless running in interactive mode or using pyside.
if __name__ == '__main__':
    import sys
    if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
        QtGui.QApplication.instance().exec_()