gluPwlCurve - describe a piecewise linear NURBS trimming
GLenum type );
Specifies the NURBS object (created with gluNewNurbsRenderer()).
Specifies the number of points on the curve.
Specifies an array containing the curve points. Specifies
the offset (a number of single-precision floating-point
values) between points on the curve. Specifies the type
of curve. Must be either GLU_MAP1_TRIM_2 or
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
To describe a trim curve that closely follows the contours
of a NURBS surface, call gluNurbsCurve().
gluBeginCurve(3), gluBeginTrim(3), gluNewNurbsRenderer(3),
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