/*  * 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" static struct coord stdpar; static intXconic(struct place *place, double *x, double *y){	double r;	if(fabs(place->nlat.l-stdpar.l) > 80.*RAD)		return(-1);	r = stdpar.c/stdpar.s - tan(place->nlat.l - stdpar.l);	*x = - r*sin(place->wlon.l * stdpar.s);	*y = - r*cos(place->wlon.l * stdpar.s);	if(r>3) return(0);	return(1);} projconic(double par){	if(fabs(par) <.1)		return(Xcylindrical);	deg2rad(par, &stdpar);	return(Xconic);}