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Annotation of researchv8dc/cmd/map/libmap/bicentric.c, revision 1.1

1.1     ! root        1: #include "map.h"
        !             2: 
        !             3: static struct coord center;
        !             4: 
        !             5: Xbicentric(p,x,y)
        !             6: struct place *p;
        !             7: float *x, *y;
        !             8: {
        !             9:        if(p->wlon.c<=.01||p->nlat.c<=.01)
        !            10:                return(-1);
        !            11:        *x = -center.c*p->wlon.s/p->wlon.c;
        !            12:        *y = p->nlat.s/(p->nlat.c*p->wlon.c);
        !            13:        return(*x**x+*y**y<=9);
        !            14: }
        !            15: 
        !            16: int (*bicentric(l))()
        !            17: float l;
        !            18: {
        !            19:        l = fabs(l);
        !            20:        if(l>89)
        !            21:                return(0);
        !            22:        deg2rad(l,&center);
        !            23:        return(Xbicentric);
        !            24: }

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