Subversion Repositories planix.SVN

Rev

Rev 2 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 - 1 
#include <u.h>
2 
#include <libc.h>
3 
#include "map.h"
4 
 
5 
static struct coord center;
6 
 
7 
static int
8 
Xbicentric(struct place *place, double *x, double *y)
9 
{
10 
	if(place->wlon.c<=.01||place->nlat.c<=.01)
11 
		return(-1);
12 
	*x = -center.c*place->wlon.s/place->wlon.c;
13 
	*y = place->nlat.s/(place->nlat.c*place->wlon.c);
14 
	return(*x**x+*y**y<=9);
15 
}
16 
 
17 
proj
18 
bicentric(double l)
19 
{
20 
	l = fabs(l);
21 
	if(l>89)
22 
		return(0);
23 
	deg2rad(l,&center);
24 
	return(Xbicentric);
25 
}