Hello Pyqtgraph community,
I want to create a "fixed" text object in a 3D interactive plot generated
in PyQtGraph. This text object will contain simulation-related information
and should be visible at all times, regardless if you zoom in/out or pan to
the left or right; and the location of the window should not change.
So far all the solutions I have found, create a text object that moves as
the scaling of the axes changes. For example, the code below prints text on
3D axis, but once you zoom in/out the text moves all over the place. Any
ideas would be greatly appreciated.
Thanks
from pyqtgraph.Qt import QtCore, QtGui
import pyqtgraph.opengl as gl
from pyqtgraph.opengl.GLGraphicsItem import GLGraphicsItem
class GLTextItem(GLGraphicsItem):
"""
Class for plotting text on a GLWidget
"""
def __init__(self, X=None, Y=None, Z=None, text=None):
GLGraphicsItem.__init__(self)
self.setGLOptions('translucent')
self.text = text
self.X = X
self.Y = Y
self.Z = Z
def setGLViewWidget(self, GLViewWidget):
self.GLViewWidget = GLViewWidget
def setText(self, text):
self.text = text
self.update()
def setX(self, X):
self.X = X
self.update()
def setY(self, Y):
self.Y = Y
self.update()
def setZ(self, Z):
self.Z = Z
self.update()
def paint(self):
self.GLViewWidget.qglColor(QtCore.Qt.white)
self.GLViewWidget.renderText(self.X, self.Y, self.Z, self.text)
if __name__ == '__main__':
# Create app
app = QtGui.QApplication([])
w1 = gl.GLViewWidget()
w1.resize(800, 800)
w1.show()
w1.setWindowTitle('Earth 3D')
gl_txt = GLTextItem(10, 10, 10, 'Sample test')
gl_txt.setGLViewWidget(w1)
w1.addItem(gl_txt)
while w1.isVisible():
app.processEvents()
python-3.x
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