/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include "map.h" intXazequalarea(struct place *place, double *x, double *y){	double r;	r = sqrt(1. - place->nlat.s);	*x = - r * place->wlon.s;	*y = - r * place->wlon.c;	return(1);} projazequalarea(void){	return(Xazequalarea);}