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/*****************************************************************
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geo_app_point_face.cpp Type:Func
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Appartenance d un point a une face
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Date de creation : 14-8-1997 15 :39 :35
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Derniere version : 14-8-1997 15 :39 :35
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Vincent FRANCOIS
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*****************************************************************/
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/**************************/
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/* include */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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#include "const.h"
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#include "memoire.h"
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#include "struct.h"
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#include "prototype.h"
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/**************************/
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/* variables globales */
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extern struct environnement env;
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extern struct s_mesh *mesh;
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extern struct s_maillage *maillage;
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extern struct s_acis *acis;
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int geo_app_point_face(struct s_face *face,struct s_mnoeud *mno)
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{
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struct s_cone *cone;
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struct s_plane *plane;
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float x,y,z,xtmp,ytmp,ztmp;
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float terme1,terme2,test;
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float n[4],vec[4];
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int rep;
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cone=NULL;
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plane=NULL;
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if (strcmp(acis->type_entite[face->surface],"cone-surface")==0)
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cone=(struct s_cone *)acis->entity[face->surface];
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if (strcmp(acis->type_entite[face->surface],"plane-surface")==0)
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plane=(struct s_plane *)acis->entity[face->surface];
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x=mno->x;
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y=mno->y;
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z=mno->z;
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if (cone!=NULL)
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{
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xtmp=cone->param->u[0]*(x-cone->param->centre[0])+cone->param->u[1]*(y-cone->param->centre[1])+cone->param->u[2]*(z-cone->param->centre[2]);
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ytmp=cone->param->v[0]*(x-cone->param->centre[0])+cone->param->v[1]*(y-cone->param->centre[1])+cone->param->v[2]*(z-cone->param->centre[2]);
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ztmp=cone->param->w[0]*(x-cone->param->centre[0])+cone->param->w[1]*(y-cone->param->centre[1])+cone->param->w[2]*(z-cone->param->centre[2]);
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terme1=cone->param->a*(1.+ztmp*cone->param->tg/cone->param->a);
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if (EGAL(terme1,0.0,0.0001)) return(0);
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else terme1=xtmp/terme1;
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terme2=cone->param->b*(1.+ztmp*cone->param->tg/cone->param->a);
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if (EGAL(terme2,0.0,0.0001)) return(0);
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else terme2=ytmp/terme2;
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test=terme1*terme1+terme2*terme2;
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if (EGAL(test,1.,0.0001))
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{
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eval_cone(face,cone->param,&mno->u,&mno->v,INVERSE,&x,&y,&z,0.);
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rep=1;
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}
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else rep=0;
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}
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if (plane!=NULL)
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{
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PVEC(n,plane->param->dir1,plane->param->dir2);
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vec[0]=plane->param->root[0]-mno->x;
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vec[1]=plane->param->root[1]-mno->y;
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vec[2]=plane->param->root[2]-mno->z;
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NORME(n);
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NORME(vec);
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test=PSCA(n,vec);
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if (EGAL(test,0.,0.0001))
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{
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eval_plane(face,plane->param,&mno->u,&mno->v,INVERSE,&x,&y,&z);
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rep=1;
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}
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else rep=0;
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}
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return(rep);
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}
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