/**
* This returns true when the line between pt1 and pt2 crosses the seam. When the cone is
* flattened, the "seam" is lon0 +- 180.
*
* @param pt1 point 1
* @param pt2 point 2
* @return true when the line between pt1 and pt2 crosses the seam.
*/
public boolean crossSeam(ProjectionPoint pt1, ProjectionPoint pt2) {
// either point is infinite
if (ProjectionPointImpl.isInfinite(pt1) || ProjectionPointImpl.isInfinite(pt2)) return true;
// opposite signed X values, larger then 5000 km
return (pt1.getX() * pt2.getX() < 0) && (Math.abs(pt1.getX() - pt2.getX()) > 5000.0);
}
/**
* Does the line between these two points cross the projection "seam".
*
* @param pt1 the line goes between these two points
* @param pt2 the line goes between these two points
* @return false if there is no seam
*/
public boolean crossSeam(ProjectionPoint pt1, ProjectionPoint pt2) {
// either point is infinite
if (ProjectionPointImpl.isInfinite(pt1) || ProjectionPointImpl.isInfinite(pt2)) {
return true;
}
// opposite signed long lines: LOOK ????
return (pt1.getX() * pt2.getX() < 0);
}