GLUPWLCURVE - Online Linux Manual PageSection : 3G
NAME"gluPwlCurve − describe a piecewise linear NURBS trimming curve
C SPECIFICATIONvoid gluPwlCurve( GLUnurbs* nurb, GLint count, GLfloat* data, GLint stride, GLenum type )
PARAMETERSnurb  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.
DESCRIPTION­gluPwlCurve 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.
NOTESTo describe a trim curve that closely follows the contours of a NURBS surface, call ­gluNurbsCurve.
SEE ALSO­gluBeginCurve(3G), ­gluBeginTrim(3G), ­gluNewNurbsRenderer(3G), ­gluNurbsCurve(3G) 0
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