CGPointFromLinePlane01

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

CGPointFromLinePlane01()

SYNOPSIS

geom_lib/geomat3d.c:781

int CGPointFromLinePlane01(PointType Pl,
                           PointType Vl,
                           PlaneType Plane,
                           PointType InterPoint,
                           RealType *t)

DESCRIPTION

Routine to find the intersection point of a line and a plane (if any). The Plane is prescribed using four coefficients : Ax + By + Cz + D = 0 given as four elements vector. The line is define via a point on it Pl and a direction vector Vl. Returns TRUE only if such point exists. this routine accepts solutions only for t between zero and one.

PARAMETERS:

Pl, Vl: Position and direction that defines the line.

Plane: To find the intersection with the line.

InterPoint: Where the intersection occured.

t: Parameter along the line of the intersection location (as Pl + Vl * t).

FUNCTION RETURN VALUE

int: TRUE, if successful and t between zero and one.

ORIGIN

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Time: 07:27:18 GMT, October 17, 2022