MirOS Manual: glGetClipPlane(3)


GLGETCLIPPLANE(3G)  UNIX Programmer's 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 iden-
               tified 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 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 exe-
     cuted between the execution of glBegin and the corresponding
     execution of glEnd.

SEE ALSO

     glClipPlane(3G)

MirOS BSD #10-current  Printed 03.04.2017                       1

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