protected Point randomPointIn(Rectangle r) {
double x = r.getMinX() + randomDouble() * r.getWidth();
double y = r.getMinY() + randomDouble() * r.getHeight();
x = normX(x);
y = normY(y);
Point p = ctx.makePoint(x, y);
assertEquals(CONTAINS, r.relate(p));
return p;
}
protected Point randomPointIn(Shape shape) {
if (!shape.hasArea()) // or try the center?
throw new UnsupportedOperationException("Need area to define shape!");
Rectangle bbox = shape.getBoundingBox();
Point p;
do {
p = randomPointIn(bbox);
} while (!bbox.relate(p).intersects());
return p;
}
@Override
public SpatialRelation relate(Shape other) {
final SpatialRelation bboxSect = bbox.relate(other);
if (bboxSect == SpatialRelation.DISJOINT || bboxSect == SpatialRelation.WITHIN) return bboxSect;
final boolean containsWillShortCircuit =
(other instanceof Point) || relateContainsShortCircuits();
SpatialRelation sect = null;
for (Shape shape : shapes) {
SpatialRelation nextSect = shape.relate(other);
if (sect == null) { // first pass
sect = nextSect;
} else {
sect = sect.combine(nextSect);
}
if (sect == INTERSECTS) return INTERSECTS;
if (sect == CONTAINS && containsWillShortCircuit) return CONTAINS;
}
return sect;
}