#include <u.h>#include <libc.h>#include "map.h" #define Xaitwist Xaitpole.nlatstatic struct place Xaitpole; static intXaitoff(struct place *place, double *x, double *y){	struct place p;	copyplace(place,&p);	p.wlon.l /= 2.;	sincos(&p.wlon);	norm(&p,&Xaitpole,&Xaitwist);	Xazequalarea(&p,x,y);	*x *= 2.;	return(1);} projaitoff(void){	latlon(0.,0.,&Xaitpole);	return(Xaitoff);}