ckint_fac.c File Reference

intersect faces,edges UT2D_ckint_ More...

#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include "../ut/ut_geo.h"

Functions
int	UT2D_ckint_EdgFac_ (Point2 *f1, Point2 *f2, Point2 *f3, Point2 *e1, Point2 *e2)
int	UT2D_ckint_EdgFac2 (Point2 *f1, Point2 *f2, Point2 *f3, Point2 *e1, Point2 *e2)
int	UT2D_ckint_EdgFac1 (int *i11, int *i12, int *i21, int *i22, int *i31, int *i32)
int	UT2D_ckint_FacFac (Point2 *a1, Point2 *a2, Point2 *a3, Point2 *b1, Point2 *b2, Point2 *b3)
Variables
static int	s1
static int	s2
static int	s3

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Detailed Description

intersect faces,edges UT2D_ckint_

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Liste_Funktionen_Beginn:

UT2D_ckint_FacFac          check if 2 Faces intersect
UT2D_ckint_EdgFac_         check if Edge intersects Face
UT2D_ckint_EdgFac1         -
UT2D_ckint_EdgFac2         -

Liste_Funktionen_Ende:
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Function Documentation

int UT2D_ckint_EdgFac_	(	Point2 *	f1,
		Point2 *	f2,
		Point2 *	f3,
		Point2 *	e1,
		Point2 *	e2
	)

    UT2D_ck_intEdgFac_          check if Edge intersects Face
    Face must be oriented CCW !
    if Edge touches Face: no intersection !
    if Edge lies on FaceEdge: is intersection !
    Identical Points werden nicht getestet ! (vorher machen)
    
    RetCod:
      0: nein, Edge e1-e2 schneidet Face f1-f2-f3 NICHT
      1: ja, Edge e1-e2 beruehrt eines der FaceEdges
      2: ja, Edge e1-e2 liegt genau auf einem FaceEdge
      3: ja, Edge e1-e2 liegt inside Face f1-f2-f3

int UT2D_ckint_EdgFac2	(	Point2 *	f1,
		Point2 *	f2,
		Point2 *	f3,
		Point2 *	e1,
		Point2 *	e2
	)

int UT2D_ckint_EdgFac1	(	int *	i11,
		int *	i12,
		int *	i21,
		int *	i22,
		int *	i31,
		int *	i32
	)

int UT2D_ckint_FacFac	(	Point2 *	a1,
		Point2 *	a2,
		Point2 *	a3,
		Point2 *	b1,
		Point2 *	b2,
		Point2 *	b3
	)

    UT2D_ck_intEdgFac           check if Edge intersects Face
    Face must be oriented CCW !
    if Edge touches Face: no intersection !
    if Edge lies on FaceEdge: is intersection !
    Identical Points werden nicht getestet ! (vorher machen)
    
    RetCod:
      0: nein, Face b schneidet Face a NICHT
      1: ja, Face b beruehrt eines der FaceEdges
      2: ja, Face b liegt genau auf einem FaceEdge
      3: ja, Face b liegt inside Face a

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Variable Documentation

int s1 [static]

int s2 [static]

int s3 [static]