redhat man page for glupwlcurve

GLUPWLCURVE(3G) 														   GLUPWLCURVE(3G)

NAME
       gluPwlCurve - describe a piecewise linear NURBS trimming curve

C SPECIFICATION
       void gluPwlCurve( GLUnurbs* nurb,
			 GLint count,
			 GLfloat* data,
			 GLint stride,
			 GLenum type )

PARAMETERS
       nurb    Specifies the NURBS object (created with gluNewNurbsRenderer).

       count   Specifies the number of points on the curve.

       data    Specifies an array containing the curve points.

       stride  Specifies the offset (a number of single-precision floating-point values) between points on the curve.

       type    Specifies the type of curve.  Must be either GLU_MAP1_TRIM_2 or GLU_MAP1_TRIM_3.

DESCRIPTION
       gluPwlCurve describes a piecewise linear trimming curve for a NURBS surface.  A piecewise linear curve consists of a list of coordinates of
       points in the parameter space for the NURBS surface to be trimmed. These points are connected with line segments to form a  curve.  If  the
       curve  is an approximation to a curve that is not piecewise linear, the points should be close enough in parameter space that the resulting
       path appears curved at the resolution used in the application.

       If type is GLU_MAP1_TRIM_2, then it describes a curve in two-dimensional (u and v) parameter space.  If	it  is	GLU_MAP1_TRIM_3,  then	it
       describes  a  curve in two-dimensional homogeneous (u, v, and w) parameter space.  See the gluBeginTrim reference page for more information
       about trimming curves.

NOTES
       To describe a trim curve that closely follows the contours of a NURBS surface, call gluNurbsCurve.

SEE ALSO
       gluBeginCurve(3G), gluBeginTrim(3G), gluNewNurbsRenderer(3G), gluNurbsCurve(3G)

																   GLUPWLCURVE(3G)