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/*****************************************************************
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m2d_ex_sol.c Type:Func
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analyse les solutions de la recherche de l'intersection seg seg
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Date de creation : Wed Feb 19 14:38:14 1997
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Derniere version : Tue Apr 22 13:39:09 1997
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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 <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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/**************************/
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/* programme principal */
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#define VRAI 1
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#define FAUX 0
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int m2d_ex_sol(float sol1,float sol2,int ntype_sol)
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{
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float epsilon=0.0001;
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if (ntype_sol==1)
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{
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if ( (sol1>epsilon) && ((sol1)<(1-epsilon)) && (sol2>epsilon) && ((sol2)<(1-epsilon)) ) return(VRAI);
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if ( ( (EGAL(sol1,0,epsilon)) || (EGAL(sol1,1,epsilon))) && ( (sol2>epsilon) && ((sol2)<(1-epsilon)) ) ) return(VRAI);
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if ( ( (EGAL(sol2,0,epsilon)) || (EGAL(sol2,1,epsilon))) && ( (sol1>epsilon) && ((sol1)<(1-epsilon)) ) ) return(VRAI);
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if ( (sol1>epsilon) && ((sol1)<(1-epsilon)) && (sol2>(-0.1-epsilon)) && ((sol2)<(1.1-epsilon)) ) return(VRAI);
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if ( (sol2>epsilon) && ((sol2)<(1-epsilon)) && (sol1>(-0.1-epsilon)) && ((sol1)<(1.1-epsilon)) ) return(VRAI);
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}
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if (ntype_sol==2)
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{
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if ( (sol1>epsilon) && ((sol1)<(1-epsilon)) ) return(VRAI);
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if ( (sol2>epsilon) && ((sol2)<(1-epsilon)) ) return(VRAI);
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if ( ((sol1)>(1+epsilon)) && ((-sol2)>epsilon) ) return(VRAI);
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if ( ((sol2)>(1+epsilon)) && ((-sol1)>epsilon) ) return(VRAI);
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}
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return(FAUX);
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}
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