#include <u.h>#include <libc.h>#include "map.h" static double a; static intXnewyorker(struct place *place, double *x, double *y){	double r = PI/2 - place->nlat.l;	double s;	if(r<.001)	/* cheat to plot center */		s = 0;	else if(r<a)		return -1;	else		s = log(r/a);	*x = -s * place->wlon.s;	*y = -s * place->wlon.c;	return(1);} projnewyorker(double a0){	a = a0*RAD;	return(Xnewyorker);}