@Test
public void testLinerRing() {
Point pt = getRandomPoint();
Geodetic2DBounds bbox = new Geodetic2DBounds(pt.asGeodetic2DPoint());
bbox.grow(500);
// System.out.println(bbox);
LinearRing ring1 = new LinearRing(bbox);
// create second linear ring centered at north/east edge of the first
// so it intersects
bbox = new Geodetic2DBounds(pt.asGeodetic2DPoint());
bbox.grow(50);
System.out.println(bbox);
LinearRing ring2 = new LinearRing(bbox);
assertTrue(ring1.intersects(ring2));
assertTrue(ring2.intersects(ring1));
// create third linear ring at other side of the hemisphere so it cannot intersect
bbox =
new Geodetic2DBounds(
new Geodetic2DPoint(
new Longitude(-bbox.getEastLon().inRadians()),
new Latitude(-bbox.getNorthLat().inRadians())));
bbox.grow(10);
// System.out.println(bbox);
LinearRing ring3 = new LinearRing(bbox);
assertFalse(ring1.intersects(ring3));
assertFalse(ring1.contains(ring3));
}
@Test
public void testRegionAtPole() {
List<Point> pts = new ArrayList<Point>(5);
// 3km box that closely matches google earth lat/lon grids lines
// ctr=(65� 0' 0" E, 89� 54' 18" S) -89.905 65.0
// bbox=(60� 0' 0" E, 89� 54' 36" S) .. (70� 0' 0" E, 89� 54' 0" S)
final Point firstPt = new Point(-89.90, 70.0);
pts.add(firstPt);
pts.add(new Point(-89.90, 60.0));
pts.add(new Point(-89.91, 60.0));
pts.add(new Point(-89.91, 70.0));
pts.add(firstPt);
Line line = new Line(pts);
Geodetic2DPoint cp = line.getCenter();
// System.out.println("Fctr=" + cp + " " + cp.getLatitudeAsDegrees() + " " +
// cp.getLongitudeAsDegrees());
LinearRing ring = new LinearRing(pts, true);
assertEquals(cp, ring.getCenter());
final Geodetic2DBounds bbox = line.getBoundingBox();
assertTrue(bbox != null && bbox.contains(cp));
// System.out.println("bbox=" + bbox);
assertTrue(
bbox.getNorthLat().inDegrees()
> bbox.getSouthLat().inDegrees()); // north=-89.90 south=-89.91
assertTrue(
bbox.getWestLon().inDegrees() < bbox.getEastLon().inDegrees()); // west=60.0 east=70.0 degs
Geodetic2DBounds bounds = new Geodetic2DBounds(bbox);
bounds.grow(100); // grow 100 bbox meters larger
assertTrue(bounds.contains(bbox));
for (Point pt : pts) {
assertTrue(bounds.contains(pt.asGeodetic2DPoint()));
}
// create a bounding box from 1-km MGRS grid that intersects the region
MGRS mgrs = new MGRS(new MGRS(cp).toString(2)); // BAN0904
bounds = mgrs.getBoundingBox();
assertTrue(bounds.intersects(bbox));
assertTrue(bbox.intersects(bounds));
}