1 #include <u.h> 2 #include <libc.h> 3 #include "map.h" 4 5 int Xazequalarea(struct place * place,double * x,double * y)6Xazequalarea(struct place *place, double *x, double *y) 7 { 8 double r; 9 r = sqrt(1. - place->nlat.s); 10 *x = - r * place->wlon.s; 11 *y = - r * place->wlon.c; 12 return(1); 13 } 14 15 proj azequalarea(void)16azequalarea(void) 17 { 18 return(Xazequalarea); 19 } 20