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"""Qt module for VTK/Python.
Example usage:
import sys
import PyQt5
from PyQt5.QtWidgets import QApplication
from vtkmodules.qt.QVTKRenderWindowInteractor import QVTKRenderWindowInteractor
app = QApplication(sys.argv)
widget = QVTKRenderWindowInteractor()
widget.Initialize()
widget.Start()
renwin = widget.GetRenderWindow()
For more information, see QVTKRenderWidgetConeExample() in the file
QVTKRenderWindowInteractor.py.
"""
import importlib
import sys
# PyQtImpl can be set by the user
PyQtImpl = None
# Has an implementation has been imported yet?
for impl in ["PySide6", "PyQt6", "PyQt5", "PySide2", "PyQt4", "PySide"]:
if impl in sys.modules:
# Sometimes an attempted import can be crufty (e.g., unclean
# uninstalls of PyQt5), so let's try to import the actual functionality
try:
importlib.import_module(impl + '.QtCore')
except Exception:
pass
else:
PyQtImpl = impl
break
# QVTKRWIBase, base class for QVTKRenderWindowInteractor,
# can be altered by the user to "QGLWidget" or "QOpenGLWidget"
# in case of rendering errors (e.g. depth check problems,
# readGLBuffer warnings...)
QVTKRWIBase = "QWidget"
__all__ = ['QVTKRenderWindowInteractor']
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