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 sur‐
       face.  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  ap‐
       pears 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, gluBeginTrim, gluNewNurbsRenderer, gluNurbsCurve

                                                                GLUPWLCURVE(3G)