I am sure there is an another way, but you can override GlViewWidget
mouseMoveEvent method (original code is commented out).
import pyqtgraph.opengl as gl
import pyqtgraph as pg
from pyqtgraph import QtCore
class GLViewWidgetLeftHanded(gl.GLViewWidget):
def __init__(self):
super(GLViewWidgetLeftHanded, self).__init__()
def mouseMoveEvent(self, ev):
diff = ev.pos() - self.mousePos
self.mousePos = ev.pos()
# if ev.buttons() == QtCore.Qt.LeftButton:
if ev.buttons() == QtCore.Qt.RightButton:
self.orbit(-diff.x(), diff.y())
elif ev.buttons() == QtCore.Qt.MidButton:
if (ev.modifiers() & QtCore.Qt.ControlModifier):
self.pan(diff.x(), 0, diff.y(), relative=True)
else:
self.pan(diff.x(), diff.y(), 0, relative=True)
app = pg.QtGui.QApplication([])
fig = GLViewWidgetLeftHanded()
axis = gl.GLAxisItem()
fig.addItem(axis)
fig.setWindowTitle('left v right')
fig.show()
pg.QtGui.QApplication.instance().exec_()
On Wed, May 31, 2017 at 1:59 PM, ron <[email protected]> wrote:
> Is the pyqtgraph GLViewWidget() inherently a left handed or right handed
> coordinate system? Is there a way to set this?
>
> The code below is just enough to show the GLAxisItem. It looks like a
> lefty!
>
> Is there a way to change the setup to a right-handed coordinate system?
>
> import pyqtgraph.opengl as gl
> import pyqtgraph as pg
> import PySide
> app = PySide.QtGui.QApplication([])
> fig = gl.GLViewWidget()
> axis = gl.GLAxisItem()
> fig.addItem(axis)
> fig.setWindowTitle('left v right')
> fig.show()
> pg.QtGui.QApplication.instance().exec_()
>
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