CagdCrvEvalToPolyline

Section: C Library Functions (3)
Updated: IRIT Version 6.0
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NAME

CagdCrvEvalToPolyline()

SYNOPSIS

cagd_lib/cbspeval.c:134

int CagdCrvEvalToPolyline(CagdCrvStruct *Crv,
                          int FineNess,
                          CagdRType *Points[],
                          BspKnotAlphaCoeffType *A,
                          CagdBType OptiLin)

DESCRIPTION

Samples the curve at FineNess location equally spaced in the curve's parametric domain. Computes a refinement alpha matrix (If FineNess > 0), refines the curve and uses refined control polygon as the approximation to the curve. If FineNess == 0, Alpha matrix A is used instead. Returns the actual number of points in polyline (<= FineNess). Note this routine may be invoked with Bezier curves as well as Bspline.

PARAMETERS:

Crv: To approximate as a polyline.

FineNess: Control on number of samples.

Points: Where to put the resulting polyline.

A: Optional alpha matrix for refinement.

OptiLin: If TRUE, optimize linear curves.

FUNCTION RETURN VALUE

int: The actual number of samples placed in Points. Always less than or eaul to FineNess.

ORIGIN

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Time: 07:27:17 GMT, October 17, 2022