int px_size = 512;
private boolean setLocation(double lat, double lng) {
- Point2D.Double north_1nm;
+ Point2D.Double north_step;
+ double step_nm = 0.5;
for (zoom = 3; zoom < 22; zoom++) {
coord_pt = pt(lat, lng, new Point2D.Double(0,0), zoom);
- north_1nm = pt(lat+1/60.0, lng, new Point2D.Double(0,0), zoom);
- if (coord_pt.y - north_1nm.y > px_size/2)
+ north_step = pt(lat+step_nm/60.0, lng,
+ new Point2D.Double(0,0), zoom);
+ if (coord_pt.y - north_step.y > px_size/2)
break;
}
coord_pt.x = -px_size * Math.floor(coord_pt.x/px_size + off_x);