Returns the coefficients of the clipping plane.
OpenGL C bindings library: libGL.a
void glGetClipPlane(GLenum Plane, GLdouble *Equation)
|Plane||Specifies a clipping plane. The number of clipping planes depends on the implementation; however, 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.|
The glGetClipPlane subroutine returns in Equation the four coefficients of the plane equation for Plane.
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.
|GL_INVALID_ENUM||Plane is not an accepted value.|
|GL_INVALID_OPERATION||The glGetClipPlane subroutine is called between a call to glBegin and the corresponding call to glEnd.|
|/usr/include/GL/gl.h||Contains C language constants, variable type definitions, and ANSI function prototypes for OpenGL.|
The glBegin or glEnd subroutine, glClipPlane subroutine.