<https://lh3.googleusercontent.com/-te9W_vffBzo/V-1_OwEZx2I/AAAAAAAAABs/lzHQh3ehckkZvhGHRjxPhmXkXgPMr28OgCLcB/s1600/plot.png>
I modified one of the multiple axes examples from the Internet to use in my
code. I am embedding it into a graphicsView widget promoted to a
PlotWidget. When I call showGrid I get a grid for two axes when I would
just prefer just the p1 grid. I am calling the showGrid function on line 29
of the code below. Any help would be greatly appreciated.
#imports
from PyQt4 import QtGui
#from PyQt4 import QtCore
import ui_test #Gui File
import sys
import pyqtgraph as pg
class Gui(QtGui.QMainWindow, ui_test.Ui_MainWindow):
def __init__(self):
super(self.__class__, self).__init__()
self.setupUi(self)
self.pg_plot()
self.updateViews()
self.plotdata()
def pg_plot(self):
## Switch to using white background and black foreground
self.bepx = 30
self.bepy = 800
pg.setConfigOption('background', 'w')
pg.setConfigOption('foreground', 'k')
self.p1 = pg.PlotItem()
self.graphicsView.setCentralWidget(self.p1)
self.p1.showGrid(x = True, y = True ,alpha = 0.3)
lr = pg.LinearRegionItem([20,40], movable = False, brush =
'#ffcccc33') #Set linear region
self.p1.addItem(lr)
## create a new ViewBox, link the right axis to its coordinate
system
self.p2 = pg.ViewBox()
self.p1.showAxis('right')
self.p1.scene().addItem(self.p2)
self.p1.getAxis('right').linkToView(self.p2)
self.p2.setXLink(self.p1)
self.p1.getAxis('right').setLabel('eff', color='g')
pg.LinearRegionItem([20,40])
## create third ViewBox.
## this time we need to create a new axis as well.
self.p3 = pg.ViewBox()
self.ax3 = pg.AxisItem('right')
self.p1.layout.addItem(self.ax3,2,3)
self.p1.scene().addItem(self.p3)
self.ax3.linkToView(self.p3)
self.p3.setXLink(self.p1)
self.ax3.setZValue(-10000)
self.ax3.setLabel('Power', color='r')
## Handle view resizing
def updateViews(self):
## view has resized; update auxiliary views to match
self.p2.setGeometry(self.p1.vb.sceneBoundingRect())
self.p3.setGeometry(self.p1.vb.sceneBoundingRect())
## need to re-update linked axes since this was called
## incorrectly while views had different shapes.
## (probably this should be handled in ViewBox.resizeEvent)
self.p2.linkedViewChanged(self.p1.vb, self.p2.XAxis)
self.p3.linkedViewChanged(self.p1.vb, self.p3.XAxis)
def plotdata(self):
#Plot Datapoints
self.p1.plot([0,10,20,30,40,50], [1,2,4,8,16,32], pen = 'g')
self.p2.addItem(pg.PlotCurveItem([0,10,20,30,40,50],
[10,20,40,80,40,20], pen='b'))
self.p3.addItem(pg.PlotCurveItem([0,10,20,30,40,50],
[3200,1600,800,2500,200,100], pen='r'))
self.bepx = 50
self.bepy = 1000
def main():
app = QtGui.QApplication(sys.argv)
form = Gui()
form.show()
app.exec_()
if __name__ == '__main__': # if we're running file directly and not
importing it
main() # run the main function
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