1GLUPWLCURVE(3G)                  OpenGL Manual                 GLUPWLCURVE(3G)
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NAME

6       gluPwlCurve - describe a piecewise linear NURBS trimming curve
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C SPECIFICATION

9       void gluPwlCurve(GLUnurbs* nurb, GLint count, GLfloat* data,
10                        GLint stride, GLenum type);
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PARAMETERS

13       nurb
14           Specifies the NURBS object (created with gluNewNurbsRenderer()).
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16       count
17           Specifies the number of points on the curve.
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19       data
20           Specifies an array containing the curve points.
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22       stride
23           Specifies the offset (a number of single-precision floating-point
24           values) between points on the curve.
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26       type
27           Specifies the type of curve. Must be either GLU_MAP1_TRIM_2 or
28           GLU_MAP1_TRIM_3.
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DESCRIPTION

31       gluPwlCurve describes a piecewise linear trimming curve for a NURBS
32       surface. A piecewise linear curve consists of a list of coordinates of
33       points in the parameter space for the NURBS surface to be trimmed.
34       These points are connected with line segments to form a curve. If the
35       curve is an approximation to a curve that is not piecewise linear, the
36       points should be close enough in parameter space that the resulting
37       path appears curved at the resolution used in the application.
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39       If type is GLU_MAP1_TRIM_2, then it describes a curve in
40       two-dimensional (u and v) parameter space. If it is GLU_MAP1_TRIM_3,
41       then it describes a curve in two-dimensional homogeneous (u, v, and w)
42       parameter space. See the gluBeginTrim() reference page for more
43       information about trimming curves.
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NOTES

46       To describe a trim curve that closely follows the contours of a NURBS
47       surface, call gluNurbsCurve().
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SEE ALSO

50       gluBeginCurve(), gluBeginTrim(), gluNewNurbsRenderer(), gluNurbsCurve()
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53       Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed
54       under the SGI Free Software B License. For details, see
55       http://oss.sgi.com/projects/FreeB/.
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AUTHORS

58       opengl.org
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62opengl.org                        06/10/2014                   GLUPWLCURVE(3G)
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