glGetClipPlane

GLGETCLIPPLANE(3G)					   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 0 ≤ i < GL_MAX_CLIP_PLANES.

       equation	 Returns four double-precision values that  are	 the  coeffi-
		 cients	 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 equa-
       tion.

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(3G)



							   GLGETCLIPPLANE(3G)