const Shape<T, D> &get_shape() const { return *shape; }
const AffineTransformation<T, D> &get_transformation() const { return transformation; }
- virtual BoundingBox<T, D> get_axis_aligned_bounding_box() const;
+ virtual BoundingBox<T, D> get_axis_aligned_bounding_box(unsigned = 0) const;
virtual bool contains(const LinAl::Vector<T, D> &) const;
virtual unsigned get_max_ray_intersections() const { return shape->get_max_ray_intersections(); }
virtual unsigned get_intersections(const Ray<T, D> &, SurfacePoint<T, D> *, unsigned) const;
}
template<typename T, unsigned D>
-inline BoundingBox<T, D> TransformedShape<T, D>::get_axis_aligned_bounding_box() const
+inline BoundingBox<T, D> TransformedShape<T, D>::get_axis_aligned_bounding_box(unsigned detail) const
{
+ if(detail)
+ return this->bisect_axis_aligned_bounding_box(detail);
+
return transformation.transform(shape->get_axis_aligned_bounding_box());
}
template<typename T, unsigned D>
inline Coverage TransformedShape<T, D>::get_coverage(const BoundingBox<T, D> &bbox) const
{
- return shape->get_coverage(inverse_trans.transform(bbox));
+ BoundingBox<T, D> local_bbox = inverse_trans.transform(bbox);
+ Coverage coverage = shape->get_coverage(local_bbox);
+ if(coverage==PARTIAL_COVERAGE)
+ {
+ BoundingBox<T, D> outer_bbox = transformation.transform(local_bbox);
+ LinAl::Vector<T, D> min_pt = local_bbox.get_minimum_point();
+ LinAl::Vector<T, D> max_pt = local_bbox.get_maximum_point();
+ for(unsigned i=0; i<D; ++i)
+ {
+ T scale_ratio = (1-bbox.get_dimension(i)/outer_bbox.get_dimension(i))*local_bbox.get_dimension(i);
+ T low_gap = bbox.get_minimum_coordinate(i)-outer_bbox.get_minimum_coordinate(i);
+ T high_gap = outer_bbox.get_maximum_coordinate(i)-bbox.get_maximum_coordinate(i);
+ min_pt[i] += low_gap*scale_ratio;
+ max_pt[i] -= high_gap-scale_ratio;
+ }
+
+ local_bbox = BoundingBox<T, D>(min_pt, max_pt);
+ if(shape->get_coverage(local_bbox)>=PARTIAL_COVERAGE)
+ return PARTIAL_COVERAGE;
+ else
+ return UNCERTAIN_COVERAGE;
+ }
+ else
+ return coverage;
}
} // namespace Geometry