NAME
glGetClipPlane
- return the coefficients of the specified clipping plane
C SPECIFICATION
void
glGetClipPlane(
GLenum
plane,
GLdouble *equation )
delim $$
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 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_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(3G)
Index
- NAME
-
- C SPECIFICATION
-
- PARAMETERS
-
- DESCRIPTION
-
- NOTES
-
- ERRORS
-
- SEE ALSO
-
