GLViewWidget¶
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class
pyqtgraph.opengl.
GLViewWidget
(parent=None, devicePixelRatio=None, rotationMethod='euler')[source]¶ -
__init__
(parent=None, devicePixelRatio=None, rotationMethod='euler')[source]¶ Basic widget for displaying 3D data - Rotation/scale controls - Axis/grid display - Export options
Arguments:
parent
(QObject, optional): Parent QObject. Defaults to None.
devicePixelRatio
(float, optional): High-DPI displays Qt5 should automatically detect the correct resolution. For Qt4, specify the
devicePixelRatio
argument when initializing the widget (usually this value is 1-2). Defaults to None.rotationMethod
(str): Mechanimsm to drive the rotation method, options are ‘euler’ and ‘quaternion’. Defaults to ‘euler’.
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cameraPosition
()[source]¶ Return current position of camera based on center, dist, elevation, and azimuth
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checkOpenGLVersion
(msg)[source]¶ Give exception additional context about version support.
Only to be called from within exception handler. As this check is only performed on error, unsupported versions might still work!
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itemsAt
(region=None)[source]¶ Return a list of the items displayed in the region (x, y, w, h) relative to the widget.
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orbit
(azim, elev)[source]¶ Orbits the camera around the center position. azim and elev are given in degrees.
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paintGL
(region=None, viewport=None, useItemNames=False)[source]¶ viewport specifies the arguments to glViewport. If None, then we use self.opts[‘viewport’] region specifies the sub-region of self.opts[‘viewport’] that should be rendered. Note that we may use viewport != self.opts[‘viewport’] when exporting.
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pan
(dx, dy, dz, relative='global')[source]¶ Moves the center (look-at) position while holding the camera in place.
Arguments:
dx
Distance to pan in x direction
dy
Distance to pan in y direction
dz
Distance to pan in z direction
relative
String that determines the direction of dx,dy,dz. If “global”, then the global coordinate system is used. If “view”, then the z axis is aligned with the view direction, and x and y axes are in the plane of the view: +x points right, +y points up. If “view-upright”, then x is in the global xy plane and points to the right side of the view, y is in the global xy plane and orthogonal to x, and z points in the global z direction.
Distances are scaled roughly such that a value of 1.0 moves by one pixel on screen.
Prior to version 0.11, relative was expected to be either True (x-aligned) or False (global). These values are deprecated but still recognized.
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