how to remove border of graphicsLayoutWidget

[julien....@polytechnique.edu]

Hi

I use a  graphicsLayoutWidget to plot an image from a camera. But i want to remove the 2 black border around and to full fill the widget.

Does somebody know how to do it? 

My program is :

self.winImage = pg.GraphicsLayoutWidget(border=(100,100,1))

        self.winImage.setAspectLocked(True)

        self.winImage.setContentsMargins(1,1,1,1)

        vbox2=QVBoxLayout()

        vbox2.addWidget(self.winImage)

        vbox2.setContentsMargins(0,0,0,0)

        self.p1=self.winImage.addPlot()

        self.imh=pg.ImageItem(border='w')

        self.p1.addItem(self.imh)

        self.p1.setMouseEnabled(x=False,y=False)

        self.p1.setContentsMargins(1,1,1,1)

        self.p1.setAspectLocked(True,ratio=1)

        self.p1.setContentsMargins(0,0,0,0)

hMainLayout=QHBoxLayout()

        hMainLayout.addLayout(vbox2)

        hMainLayout.addLayout(vbox1)

        hMainLayout.setContentsMargins(0,0,0,0)

        hMainLayout.setStretch(2,1)

        

        self.setLayout(hMainLayout)

        self.setContentsMargins(1,1,1,1)

[Patrick]

Hi,

There's two sets of "borders" I think you're talking about. Outside the yellow box and inside.

For outside, this is the contents margin of the GraphicsLayout -- but you'll need to get the reference to that from the central item in the GraphicsLayoutWidget:

self.winImage.ci.setContentsMargins(0, 0, 0, 0)

For inside the yellow box, this is about the extent of the ViewBox (essentially the plot limits). Set them manually eg:

self.p1.setLimits(xMin=0, 100, yMin=0, yMax=100)

So an example would be:

#!/usr/bin/env python3

import numpy as np
from PyQt5 import QtWidgets
from PyQt5.QtWidgets import QVBoxLayout, QHBoxLayout
import pyqtgraph as pg

class TestImage(QtWidgets.QMainWindow):

    def __init__(self):
        super().__init__()

        # Create empty data structure
        self.data = np.random.rand(100, 100)

        self.winImage = pg.GraphicsLayoutWidget()
        self.winImage.ci.setContentsMargins(0, 0, 0, 0)
        self.p1 = self.winImage.addPlot()
        self.imh = pg.ImageItem(self.data)
        self.p1.addItem(self.imh)
        self.p1.setMouseEnabled(x=False,y=False)

        self.p1.hideAxis('left')
        self.p1.hideAxis('bottom')
        self.p1.hideButtons()

        self.p1.scale(1.0, 1.0)
        self.p1.setLimits(xMin=0, xMax=self.data.shape[0], yMin=0, yMax=self.data.shape[1])
       
        self.setCentralWidget(self.winImage)

def main():
    import sys
    app = QtWidgets.QApplication(sys.argv)
    mainwindow = TestImage()
    mainwindow.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()

Patrick

[julien....@polytechnique.edu]

Hi

It 's perfect

Thanks a lot