#include "map.h" #define Xaitwist Xaitpole.nlat static struct place Xaitpole; static int Xaitoff(struct place *place, float *x, float *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); } proj aitoff(void) { latlon(0.,0.,&Xaitpole); return(Xaitoff); }