我正在使用PyQt和pyqtgraph构建实时数据监控应用程序。 GUI有三个PlotWidgets，它们是垂直布局的。
图表显示了传感器的位置。第一个显示X坐标，第二个显示Y坐标，第三个图显示Z坐标。横坐标是时间，对于所有三个图都是相同的。
我的问题是三个纵坐标轴（即Y轴）的水平位置在PlotWidget内移动而不对齐。我认为这主要是由于Y轴刻度标签，根据显示的位数，可能需要更多或更少的空间。
这是一种修复或手动设置图的轴位置的方法吗？
谢谢
作为参考，这就是我设置PlotItems的方法：
ui.graphicsView_x.setLabel("left", text="X", units="m")
ui.graphicsView_y.setLabel("left", text="Y", units="m")
ui.graphicsView_z.setLabel("left", text="Z", units="m")
ui.graphicsView_x.setLabel("bottom", text="Time", units="s")
ui.graphicsView_y.setLabel("bottom", text="Time", units="s")
ui.graphicsView_z.setLabel("bottom", text="Time", units="s")
## Create plot items for speed: we'll only call setData method for data display
colors = ['r','g','b']
## sensor rx1
it_rx1_x = ui.graphicsView_x.plot(clear=False, pen=colors[0])
it_rx1_y = ui.graphicsView_y.plot(clear=False, pen=colors[0])
it_rx1_z = ui.graphicsView_z.plot(clear=False, pen=colors[0])
## sensor rx2
it_rx2_x = ui.graphicsView_x.plot(clear=False, pen=colors[1])
it_rx2_y = ui.graphicsView_y.plot(clear=False, pen=colors[1])
it_rx2_z = ui.graphicsView_z.plot(clear=False, pen=colors[1])
## sensor rx3
it_rx3_x = ui.graphicsView_x.plot(clear=False, pen=colors[2])
it_rx3_y = ui.graphicsView_y.plot(clear=False, pen=colors[2])
it_rx3_z = ui.graphicsView_z.plot(clear=False, pen=colors[2])
## Link axes, so we only have to set one (the x graph in this case)
vBx = ui.graphicsView_x.getPlotItem().getViewBox()
vBy = ui.graphicsView_y.getPlotItem().getViewBox()
vBz = ui.graphicsView_z.getPlotItem().getViewBox()
vBy.linkView(vBy.XAxis, vBx)
vBz.linkView(vBz.XAxis, vBx)
ui.graphicsView_x.show()
ui.graphicsView_y.show()
ui.graphicsView_z.show()
这就是我绘图的方式：
def updatePlots():
global xData_Rx1_X
global xData_Rx1_Y
global xData_Rx1_Z
global yData_Rx1_X
global yData_Rx1_Y
global yData_Rx1_Z
global xData_Rx2_X
global xData_Rx2_Y
global xData_Rx2_Z
global yData_Rx2_X
global yData_Rx2_Y
global yData_Rx2_Z
global xData_Rx3_X
global xData_Rx3_Y
global xData_Rx3_Z
global yData_Rx3_X
global yData_Rx3_Y
global yData_Rx3_Z
## Note: we linked the X axes of the ViewBoxes. To set the scale of all,
## only manipulate the X coordinate plot.
graphWidth = ui.horizontalSlider.value()
## For some reason, Y limits are not properly auto-adjusted when we show
## only a portion of the entire data time series (by setting the X-limits
## to show only the data of interest).
## For this reason, we manually determine and set Y limits
maxX = []
maxY_x = []
minY_x = []
maxY_y = []
minY_y = []
maxY_z = []
minY_z = []
if ui.rx1_checkBox.isChecked() and len(xData_Rx1_X) > 0:
X , Y = truncateData(xData_Rx1_X,yData_Rx1_X,graphWidth)
it_rx1_x.setData(np.hstack(X),np.hstack(Y))
maxX.append(max(X))
maxY_x.append(max(Y))
minY_x.append(min(Y))
X , Y = truncateData(xData_Rx1_Y,yData_Rx1_Y,graphWidth)
it_rx1_y.setData(np.hstack(X),np.hstack(Y))
maxY_y.append(max(Y))
minY_y.append(min(Y))
X , Y = truncateData(xData_Rx1_Z,yData_Rx1_Z,graphWidth)
it_rx1_z.setData(np.hstack(X),np.hstack(Y))
maxY_z.append(max(Y))
minY_z.append(min(Y))
if ui.rx2_checkBox.isChecked() and len(xData_Rx2_X) > 0:
X , Y = truncateData(xData_Rx2_X,yData_Rx2_X,graphWidth)
it_rx2_x.setData(np.hstack(X),np.hstack(Y))
maxX.append(max(X))
maxY_x.append(max(Y))
minY_x.append(min(Y))
X , Y = truncateData(xData_Rx2_Y,yData_Rx2_Y,graphWidth)
it_rx2_y.setData(np.hstack(X),np.hstack(Y))
maxY_y.append(max(Y))
minY_y.append(min(Y))
X , Y = truncateData(xData_Rx2_Z,yData_Rx2_Z,graphWidth)
it_rx2_z.setData(np.hstack(X),np.hstack(Y))
maxY_z.append(max(Y))
minY_z.append(min(Y))
if ui.rx3_checkBox.isChecked() and len(xData_Rx3_X) > 0:
X , Y = truncateData(xData_Rx3_X,yData_Rx3_X,graphWidth)
it_rx3_x.setData(np.hstack(X),np.hstack(Y))
maxX.append(max(X))
maxY_x.append(max(Y))
minY_x.append(min(Y))
X , Y = truncateData(xData_Rx3_Y,yData_Rx3_Y,graphWidth)
it_rx3_y.setData(np.hstack(X),np.hstack(Y))
maxY_y.append(max(Y))
minY_y.append(min(Y))
X , Y = truncateData(xData_Rx3_Z,yData_Rx3_Z,graphWidth)
it_rx3_z.setData(np.hstack(xData_Rx3_Z),np.hstack(yData_Rx3_Z))
it_rx3_z.setData(np.hstack(X),np.hstack(Y))
maxY_z.append(max(Y))
minY_z.append(min(Y))
## temporarily delete curves when box is unchecked
if not ui.rx1_checkBox.isChecked() and len(xData_Rx1_X) > 0:
it_rx1_x.setData([],[])
it_rx1_y.setData([],[])
it_rx1_z.setData([],[])
if not ui.rx2_checkBox.isChecked() and len(xData_Rx2_X) > 0:
it_rx2_x.setData([],[])
it_rx2_y.setData([],[])
it_rx2_z.setData([],[])
if not ui.rx3_checkBox.isChecked() and len(xData_Rx3_X) > 0:
it_rx3_x.setData([],[])
it_rx3_y.setData([],[])
it_rx3_z.setData([],[])
if len(maxX) > 0:
## the view boxes are linked, just need to set x plot limits
ui.graphicsView_x.setXRange(max(maxX) - graphWidth, max(maxX))
if len(minY_x) > 0:
ui.graphicsView_x.setYRange(min(minY_x), max(maxY_x))
if len(minY_y) > 0:
ui.graphicsView_y.setYRange(min(minY_y), max(maxY_y))
if len(minY_z) > 0:
ui.graphicsView_z.setYRange(min(minY_z), max(maxY_z))
## We don't show the X-label
ui.graphicsView_x.getPlotItem().showAxis('bottom', show=False)
ui.graphicsView_x.getPlotItem().showGrid(x=False, y=True, alpha=1.)
ui.graphicsView_y.getPlotItem().showAxis('bottom', show=False)
ui.graphicsView_y.getPlotItem().showGrid(x=False, y=True, alpha=1.)
ui.graphicsView_z.getPlotItem().showAxis('bottom', show=False)
ui.graphicsView_z.getPlotItem().showGrid(x=False, y=True, alpha=1.)
这是代码的精简版本：
import time
import datetime
import numpy as np
import dbus
from dbus.mainloop.qt import DBusQtMainLoop
from PyQt4 import QtCore, QtDBus, QtGui
import pyqtgraph as pg
from upy018_gui import *
import sys
def appendData(X,Y,x,y,maxX):
if len(X) == 0:
Xlist = [x]
Ylist = [y]
else:
X.append(x)
Y.append(y)
Xarray = np.array(X)
Yarray = np.array(Y)
ind, = (Xarray >= Xarray.max() - float(maxX)).nonzero()
Xarray = Xarray[ind]
Yarray = Yarray[ind]
Xlist = Xarray.tolist()
Ylist = Yarray.tolist()
return Xlist, Ylist
def truncateData(X,Y,maxX):
if len(X) > 0:
Xarray = np.array(X)
Yarray = np.array(Y)
ind, = (Xarray >= Xarray.max() - float(maxX)).nonzero()
Xarray = Xarray[ind]
Yarray = Yarray[ind]
Xlist = Xarray.tolist()
Ylist = Yarray.tolist()
else:
Xlist = X
Ylist = Y
return Xlist, Ylist
def updatePnO(*arg):
global maxLengthStored
global pauseDisplay
global xData_Rx1_X
global xData_Rx1_Y
global xData_Rx1_Z
global yData_Rx1_X
global yData_Rx1_Y
global yData_Rx1_Z
global xData_Rx2_X
global xData_Rx2_Y
global xData_Rx2_Z
global yData_Rx2_X
global yData_Rx2_Y
global yData_Rx2_Z
global xData_Rx3_X
global xData_Rx3_Y
global xData_Rx3_Z
global yData_Rx3_X
global yData_Rx3_Y
global yData_Rx3_Z
global numUpdatesReceived
global numReceiversAttached
receiverID = int(arg[0])
numUpdatesReceived += 1
x_update = float(arg[2]) / 1000
y_update = float(arg[3]) / 1000
z_update = float(arg[4]) / 1000
if receiverID == 1:
xData_Rx1_X,yData_Rx1_X = appendData(xData_Rx1_X,yData_Rx1_X,time.time(),x_update,maxLengthStored)
xData_Rx1_Y,yData_Rx1_Y = appendData(xData_Rx1_Y,yData_Rx1_Y,time.time(),y_update,maxLengthStored)
xData_Rx1_Z,yData_Rx1_Z = appendData(xData_Rx1_Z,yData_Rx1_Z,time.time(),z_update,maxLengthStored)
if receiverID == 2:
xData_Rx2_X,yData_Rx2_X = appendData(xData_Rx2_X,yData_Rx2_X,time.time(),x_update,maxLengthStored)
xData_Rx2_Y,yData_Rx2_Y = appendData(xData_Rx2_Y,yData_Rx2_Y,time.time(),y_update,maxLengthStored)
xData_Rx2_Z,yData_Rx2_Z = appendData(xData_Rx2_Z,yData_Rx2_Z,time.time(),z_update,maxLengthStored)
if receiverID == 3:
xData_Rx3_X,yData_Rx3_X = appendData(xData_Rx3_X,yData_Rx3_X,time.time(),x_update,maxLengthStored)
xData_Rx3_Y,yData_Rx3_Y = appendData(xData_Rx3_Y,yData_Rx3_Y,time.time(),y_update,maxLengthStored)
xData_Rx3_Z,yData_Rx3_Z = appendData(xData_Rx3_Z,yData_Rx3_Z,time.time(),z_update,maxLengthStored)
## only update graphs when we have received an update to all connected receivers
if not pauseDisplay and numUpdatesReceived == numReceiversAttached:
updatePlots()
if numUpdatesReceived >= numReceiversAttached: # can be larger, if we disconnect a receiver at the wrong moment
numUpdatesReceived = 0
def updatePlots():
global xData_Rx1_X
global xData_Rx1_Y
global xData_Rx1_Z
global yData_Rx1_X
global yData_Rx1_Y
global yData_Rx1_Z
global xData_Rx2_X
global xData_Rx2_Y
global xData_Rx2_Z
global yData_Rx2_X
global yData_Rx2_Y
global yData_Rx2_Z
global xData_Rx3_X
global xData_Rx3_Y
global xData_Rx3_Z
global yData_Rx3_X
global yData_Rx3_Y
global yData_Rx3_Z
## Note: we linked the X axes of the ViewBoxes. To set the scale of all, only manipulate the X coordinate plot.
graphWidth = ui.horizontalSlider.value()
## For some reason, Y limits are not properly auto-adjusted when
## we show only a portion of the entire data time series (by setting the X-limits to show only the data of interest).
## For this reason, we manually determine and set Y limits
maxX = []
maxY_x = []
minY_x = []
maxY_y = []
minY_y = []
maxY_z = []
minY_z = []
if ui.rx1_checkBox.isChecked() and len(xData_Rx1_X) > 0:
X , Y = truncateData(xData_Rx1_X,yData_Rx1_X,graphWidth)
it_rx1_x.setData(np.hstack(X),np.hstack(Y))
maxX.append(max(X))
maxY_x.append(max(Y))
minY_x.append(min(Y))
X , Y = truncateData(xData_Rx1_Y,yData_Rx1_Y,graphWidth)
it_rx1_y.setData(np.hstack(X),np.hstack(Y))
maxY_y.append(max(Y))
minY_y.append(min(Y))
X , Y = truncateData(xData_Rx1_Z,yData_Rx1_Z,graphWidth)
it_rx1_z.setData(np.hstack(X),np.hstack(Y))
maxY_z.append(max(Y))
minY_z.append(min(Y))
if ui.rx2_checkBox.isChecked() and len(xData_Rx2_X) > 0:
X , Y = truncateData(xData_Rx2_X,yData_Rx2_X,graphWidth)
it_rx2_x.setData(np.hstack(X),np.hstack(Y))
maxX.append(max(X))
maxY_x.append(max(Y))
minY_x.append(min(Y))
X , Y = truncateData(xData_Rx2_Y,yData_Rx2_Y,graphWidth)
it_rx2_y.setData(np.hstack(X),np.hstack(Y))
maxY_y.append(max(Y))
minY_y.append(min(Y))
X , Y = truncateData(xData_Rx2_Z,yData_Rx2_Z,graphWidth)
it_rx2_z.setData(np.hstack(X),np.hstack(Y))
maxY_z.append(max(Y))
minY_z.append(min(Y))
if ui.rx3_checkBox.isChecked() and len(xData_Rx3_X) > 0:
X , Y = truncateData(xData_Rx3_X,yData_Rx3_X,graphWidth)
it_rx3_x.setData(np.hstack(X),np.hstack(Y))
maxX.append(max(X))
maxY_x.append(max(Y))
minY_x.append(min(Y))
X , Y = truncateData(xData_Rx3_Y,yData_Rx3_Y,graphWidth)
it_rx3_y.setData(np.hstack(X),np.hstack(Y))
maxY_y.append(max(Y))
minY_y.append(min(Y))
X , Y = truncateData(xData_Rx3_Z,yData_Rx3_Z,graphWidth)
it_rx3_z.setData(np.hstack(xData_Rx3_Z),np.hstack(yData_Rx3_Z))
it_rx3_z.setData(np.hstack(X),np.hstack(Y))
maxY_z.append(max(Y))
minY_z.append(min(Y))
## temporarily delete curves when box is unchecked
if not ui.rx1_checkBox.isChecked() and len(xData_Rx1_X) > 0:
it_rx1_x.setData([],[])
it_rx1_y.setData([],[])
it_rx1_z.setData([],[])
if not ui.rx2_checkBox.isChecked() and len(xData_Rx2_X) > 0:
it_rx2_x.setData([],[])
it_rx2_y.setData([],[])
it_rx2_z.setData([],[])
if not ui.rx3_checkBox.isChecked() and len(xData_Rx3_X) > 0:
it_rx3_x.setData([],[])
it_rx3_y.setData([],[])
it_rx3_z.setData([],[])
if len(maxX) > 0:
## the view boxes are linked, just need to set x plot limits
ui.graphicsView_x.setXRange(max(maxX) - graphWidth, max(maxX))
if len(minY_x) > 0:
ui.graphicsView_x.setYRange(min(minY_x), max(maxY_x))
if len(minY_y) > 0:
ui.graphicsView_y.setYRange(min(minY_y), max(maxY_y))
if len(minY_z) > 0:
ui.graphicsView_z.setYRange(min(minY_z), max(maxY_z))
def sliderAdjusted():
global graphWidth
graphWidth = float(ui.horizontalSlider.value())
thestring = "Window width: %d s" % graphWidth
ui.graphWidth_label.setText(thestring)
def clickedOnGraph_x(self):
pass
def clickedOnGraph_y(self):
pass
def clickedOnGraph_z(self):
pass
def pause():
global pauseDisplay
global launchTime
global xData_Rx1_X
global xData_Rx1_Y
global xData_Rx1_Z
global yData_Rx1_X
global yData_Rx1_Y
global yData_Rx1_Z
global xData_Rx2_X
global xData_Rx2_Y
global xData_Rx2_Z
global yData_Rx2_X
global yData_Rx2_Y
global yData_Rx2_Z
global xData_Rx3_X
global xData_Rx3_Y
global xData_Rx3_Z
global yData_Rx3_X
global yData_Rx3_Y
global yData_Rx3_Z
pauseDisplay = True
ui.pause_toolButton.hide()
ui.graphWidth_label.hide()
ui.start_toolButton.show()
ui.horizontalSlider.hide()
ui.graphicsView_x.getViewBox().enableAutoRange()
ui.graphicsView_y.getViewBox().enableAutoRange()
ui.graphicsView_z.getViewBox().enableAutoRange()
if ui.rx1_checkBox.isChecked() and len(xData_Rx1_X) > 0:
it_rx1_x.setData(np.hstack(xData_Rx1_X)-launchTime,np.hstack(yData_Rx1_X))
it_rx1_y.setData(np.hstack(xData_Rx1_Y)-launchTime,np.hstack(yData_Rx1_Y))
it_rx1_z.setData(np.hstack(xData_Rx1_Z)-launchTime,np.hstack(yData_Rx1_Z))
if ui.rx2_checkBox.isChecked() and len(xData_Rx2_X) > 0:
it_rx2_x.setData(np.hstack(xData_Rx2_X)-launchTime,np.hstack(yData_Rx2_X))
it_rx2_y.setData(np.hstack(xData_Rx2_Y)-launchTime,np.hstack(yData_Rx2_Y))
it_rx2_z.setData(np.hstack(xData_Rx2_Z)-launchTime,np.hstack(yData_Rx2_Z))
if ui.rx3_checkBox.isChecked() and len(xData_Rx3_X) > 0:
it_rx3_x.setData(np.hstack(xData_Rx3_X)-launchTime,np.hstack(yData_Rx3_X))
it_rx3_y.setData(np.hstack(xData_Rx3_Y)-launchTime,np.hstack(yData_Rx3_Y))
it_rx3_z.setData(np.hstack(xData_Rx3_Z)-launchTime,np.hstack(yData_Rx3_Z))
## temporarily delete curves when box is unchecked
if not ui.rx1_checkBox.isChecked() and len(xData_Rx1_X) > 0:
it_rx1_x.setData([],[])
it_rx1_y.setData([],[])
it_rx1_z.setData([],[])
if not ui.rx2_checkBox.isChecked() and len(xData_Rx2_X) > 0:
it_rx2_x.setData([],[])
it_rx2_y.setData([],[])
it_rx2_z.setData([],[])
if not ui.rx3_checkBox.isChecked() and len(xData_Rx3_X) > 0:
it_rx3_x.setData([],[])
it_rx3_y.setData([],[])
it_rx3_z.setData([],[])
ui.graphicsView_x.getPlotItem().showAxis('bottom', show=True)
ui.graphicsView_y.getPlotItem().showAxis('bottom', show=True)
ui.graphicsView_z.getPlotItem().showAxis('bottom', show=True)
#print(ui.graphicsView_x.getPlotItem().viewRange())
def restart():
global pauseDisplay
pauseDisplay = False
ui.pause_toolButton.show()
ui.graphWidth_label.show()
ui.start_toolButton.hide()
ui.horizontalSlider.show()
ui.graphicsView_x.getPlotItem().showAxis('bottom', show=False)
ui.graphicsView_y.getPlotItem().showAxis('bottom', show=False)
ui.graphicsView_z.getPlotItem().showAxis('bottom', show=False)
def getOut():
app.quit()
# ======================================= #
# #
# MAIN #
# #
# ======================================= #
if __name__ == '__main__':
## Global variables
graphWidthMax = 45. # maximum data length that can be shown while data acquisition is running (seconds)
graphWidth = 30. # data length shown in graph at program launch (seconds)
maxLengthStored = 120.# stores up to this many seconds worth of data
pauseDisplay = False
numUpdatesReceived = 0
numReceiversAttached = 0
xData_Rx1_X = []
xData_Rx1_Y = []
xData_Rx1_Z = []
yData_Rx1_X = []
yData_Rx1_Y = []
yData_Rx1_Z = []
xData_Rx2_X = []
xData_Rx2_Y = []
xData_Rx2_Z = []
yData_Rx2_X = []
yData_Rx2_Y = []
yData_Rx2_Z = []
xData_Rx3_X = []
xData_Rx3_Y = []
xData_Rx3_Z = []
yData_Rx3_X = []
yData_Rx3_Y = []
yData_Rx3_Z = []
## Create application
app = QtGui.QApplication(sys.argv)
MainWindow = QtGui.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
DBusQtMainLoop(set_as_default=True)
## set up DBus communication
bus = dbus.SessionBus()
signalReceiver_positionAndOrientationUpdate = bus.add_signal_receiver(updatePnO,"positionUpdate","tcf.PositionService","tcf.PositionService","/")
## Construct an interface object for method calls
# First, obtain proxy object
remote_object = bus.get_object("tcf.PositionService", "/")
trackerService = dbus.Interface(remote_object, 'tcf.PositionService')
ui.quit_pushButton.connect(ui.quit_pushButton,QtCore.SIGNAL("clicked()"),getOut)
ui.horizontalSlider.setMaximum(graphWidthMax)
ui.horizontalSlider.setMinimum(5)
ui.horizontalSlider.setValue(graphWidth)
ui.horizontalSlider.connect(ui.horizontalSlider,QtCore.SIGNAL("valueChanged(int)"),sliderAdjusted)
enableChangeCheckBoxes("initialize")
thestring = "Window width: %d s" % graphWidth
ui.graphWidth_label.setText(thestring)
icon = QtGui.QIcon('./upy018_ICON_pause.png')
ui.pause_toolButton.setIcon(icon)
ui.pause_toolButton.connect(ui.pause_toolButton,QtCore.SIGNAL("clicked()"),pause)
icon = QtGui.QIcon('./upy018_ICON_play.png')
ui.start_toolButton.setIcon(icon)
ui.start_toolButton.hide()
ui.start_toolButton.connect(ui.start_toolButton,QtCore.SIGNAL("clicked()"),restart)
## Set up P&O graphs
ui.graphicsView_x.setLabel("left", text="X", units="m")
ui.graphicsView_y.setLabel("left", text="Y", units="m")
ui.graphicsView_z.setLabel("left", text="Z", units="m")
ui.graphicsView_x.setLabel("bottom", text="Time", units="s")
ui.graphicsView_y.setLabel("bottom", text="Time", units="s")
ui.graphicsView_z.setLabel("bottom", text="Time", units="s")
#ui.graphicsView_x.getPlotItem().getAxis('left').setWidth(100)
#ui.graphicsView_y.getPlotItem().getAxis('left').setWidth(100)
#ui.graphicsView_z.getPlotItem().getAxis('left').setWidth(100)
## Create plot items for speed: we'll only call setData method for data display
colors = ['r','g','b']
it_rx1_x = ui.graphicsView_x.plot(clear=False, pen=colors[0])
it_rx1_y = ui.graphicsView_y.plot(clear=False, pen=colors[0])
it_rx1_z = ui.graphicsView_z.plot(clear=False, pen=colors[0])
it_rx2_x = ui.graphicsView_x.plot(clear=False, pen=colors[1])
it_rx2_y = ui.graphicsView_y.plot(clear=False, pen=colors[1])
it_rx2_z = ui.graphicsView_z.plot(clear=False, pen=colors[1])
it_rx3_x = ui.graphicsView_x.plot(clear=False, pen=colors[2])
it_rx3_y = ui.graphicsView_y.plot(clear=False, pen=colors[2])
it_rx3_z = ui.graphicsView_z.plot(clear=False, pen=colors[2])
## Link axes, so we only have to set one (the x graph in this case)
vBx = ui.graphicsView_x.getPlotItem().getViewBox()
vBy = ui.graphicsView_y.getPlotItem().getViewBox()
vBz = ui.graphicsView_z.getPlotItem().getViewBox()
vBy.linkView(vBy.XAxis, vBx)
vBz.linkView(vBz.XAxis, vBx)
ui.graphicsView_y.setXLink(ui.graphicsView_x)
ui.graphicsView_z.setXLink(ui.graphicsView_x)
## We don't show the X-label, unless we pause
ui.graphicsView_x.getPlotItem().showAxis('bottom', show=False)
ui.graphicsView_x.getPlotItem().showGrid(x=False, y=True, alpha=1.)
ui.graphicsView_y.getPlotItem().showAxis('bottom', show=False)
ui.graphicsView_y.getPlotItem().showGrid(x=False, y=True, alpha=1.)
ui.graphicsView_z.getPlotItem().showAxis('bottom', show=False)
ui.graphicsView_z.getPlotItem().showGrid(x=False, y=True, alpha=1.)
ui.graphicsView_y.setXLink(ui.graphicsView_x)
ui.graphicsView_z.setXLink(ui.graphicsView_x)
## The commands below will only be working in pyqtgraph version 0.9.9
#ui.graphicsView_x.getPlotItem().getAxis('left').setStyle(tickTextWidth=60)
#ui.graphicsView_y.getPlotItem().getAxis('left').setStyle(tickTextWidth=60)
#ui.graphicsView_z.getPlotItem().getAxis('left').setStyle(tickTextWidth=60)
#ui.graphicsView_x.getPlotItem().getAxis('left').setWidth(250)
#vBx.disableAutoRange(vBx.XAxis)
#vBy.disableAutoRange(vBy.XAxis)
#vBz.disableAutoRange(vBz.XAxis)
#ui.graphicsView_x.getPlotItem().getAxis('left').setTicks([[(0, 'zero'), (0.020, 'twenty')]])
#ui.graphicsView_y.getPlotItem().getAxis('left').setTicks([[(1, 'one'), (2, 'two')]])
#ui.graphicsView_z.getPlotItem().getAxis('left').setTicks([[(1, 'one'), (2, 'two')]])
ui.graphicsView_x.show()
ui.graphicsView_y.show()
ui.graphicsView_z.show()
launchTime = time.time()
MainWindow.show()
sys.exit(app.exec_())
答案 0 :(得分：0)
我建议将x轴连接在一起;这将确保它们的值彼此对齐，而不管y轴的大小。请参阅pyqtgraph/examples/linkedViews.py。
也许是这样的：
ui.graphicsView_y.setXLink(ui.graphicsView_x)
ui.graphicsView_z.setXLink(ui.graphicsView_x)