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add comment about definition of viewport

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KIU Shueng Chuan 2021-07-17 10:40:27 +08:00
parent 1b00d3448a
commit b5fc3d2a7e
1 changed files with 2 additions and 0 deletions
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pyqtgraph/opengl/GLViewWidget.py
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@ -230,6 +230,8 @@ class GLViewWidget(QtWidgets.QOpenGLWidget):
if viewport is None: if viewport is None:
glViewport(*self.getViewport()) glViewport(*self.getViewport())
else: else:
# note: the following code means that we have defined "viewport"
# to be in device pixels.
glViewport(*viewport) glViewport(*viewport)
self.setProjection(region=region) self.setProjection(region=region)
self.setModelview() self.setModelview()