Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>
#include "map.h"

static double a;

static int
Xcylequalarea(struct place *place, double *x, double *y)
{
        *x = - place->wlon.l * a;
        *y = place->nlat.s;
        return(1);
}

proj
cylequalarea(double par)
{
        struct coord stdp0;
        if(par > 89.0)
                return(0);
        deg2rad(par, &stdp0);
        a = stdp0.c*stdp0.c;
        return(Xcylequalarea);
}