glGetClipPlane man page on RedHat
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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_PLANE i 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_PLANE i = 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 © 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 03/16/2013 GLGETCLIPPLANE(3G)
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