GLGETCLIPPLANE(3G) OpenGL Manual GLGETCLIPPLANE(3G)
NAME
glGetClipPlane - return the coefficients of the specified clipping plane
C SPECIFICATION
void glGetClipPlane(GLenum plane, GLdouble * equation);
PARAMETERS
plane
Specifies a clipping plane. The number of clipping planes depends on the implementation, but at least six clipping planes are
supported. They are identified by symbolic names of the form GL_CLIP_PLANEi where i ranges from 0 to the value of GL_MAX_CLIP_PLANES -
1.
equation
Returns four double-precision values that are the coefficients of the plane equation of plane in eye coordinates. The initial value is
(0, 0, 0, 0).
DESCRIPTION
glGetClipPlane returns in equation the four coefficients of the plane equation for plane.
NOTES
It is always the case that GL_CLIP_PLANEi = GL_CLIP_PLANE0 + i.
If an error is generated, no change is made to the contents of equation.
ERRORS
GL_INVALID_ENUM is generated if plane is not an accepted value.
GL_INVALID_OPERATION is generated if glGetClipPlane is executed between the execution of glBegin() and the corresponding execution of
glEnd().
SEE ALSO
glClipPlane()
COPYRIGHT
Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/.
AUTHORS
opengl.org
opengl.org 06/10/2014 GLGETCLIPPLANE(3G)