glGetClipPlane(3G)	       OpenGL Reference		    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 coefficients
	       of the plane equation of	plane in eye coordinates.


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


















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