SymbDistCrvPoint

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

SymbDistCrvPoint()

SYNOPSIS

symb_lib/distance.c:47

CagdRType SymbDistCrvPoint(CagdCrvStruct *Crv,
                           CagdPType Pt,
                           CagdBType MinDist,
                           CagdRType Epsilon)

DESCRIPTION

Given a curve and a point, finds the nearest point (if MinDist) or the farest location (if MinDist FALSE) from the curve to the given point. Returned is the parameter value of the curve. Computes the zero set of (Crv(t) - Pt) . Crv'(t).

PARAMETERS:

Crv: The curve to find its nearest (farest) point to Pt.

Pt: The point to find the nearest (farest) point on Crv to it.

MinDist: If TRUE nearest points is needed, if FALSE farest.

Epsilon: Accuracy of computation.

FUNCTION RETURN VALUE

CagdRType: Parameter value in the parameter space of Crv of the nearest (farest) point to point Pt.

ORIGIN

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