The gluPwlCurve function describes a piecewise linear NURBS trimming curve.

void gluPwlCurve(
  GLUnurbsObj *nobj,
  GLint count,
  GLfloat *array,
  GLint stride,
  GLenum type


The NURBS object (created with gluNewNurbsRenderer).
The number of points on the curve.
An array containing the curve points.
The offset (a number of single precisionfloating-point values) between points on the curve.
The type of curve. Must be either GLU_MAP1_TRIM_2 or GLU_MAP1_TRIM_3.


The gluPwlCurve function 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 real curve, the points should be close enough that the resulting path appears curved at the resolution used in the application.

If type is GLU_MAP1_TRIM_2, 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. For more information about trimming curves, see gluBeginTrim.


  Windows NT/2000: Requires Windows NT 3.5 or later.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in Glu.h.
  Library: Use Glu32.lib.

See Also

gluBeginCurve, gluBeginTrim, gluNewNurbsRenderer, gluNurbsCurve


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