Make the check_intersection function non-virtual

Almost all shapes were implementing it with a call to get_intersections,
so might as well make the base class do that.  Performance loss is likely
negligible.

diff --git a/source/geometry/compositeshape.h b/source/geometry/compositeshape.h
index 50b04e80c506e93f7dc995187140e871dec66e27..9476f99287843b33f52b1cf55fa0dfd6bdc85d94 100644 (file)
--- a/source/geometry/compositeshape.h
+++ b/source/geometry/compositeshape.h
@@ -28,7 +28,6 @@ public:
 
        virtual HyperBox<T, D> get_axis_aligned_bounding_box() const;
        virtual bool contains(const LinAl::Vector<T, D> &) const;
-       virtual bool check_intersection(const Ray<T, D> &) const;
        virtual unsigned get_max_ray_intersections() const;
        virtual unsigned get_intersections(const Ray<T, D> &, SurfacePoint<T, D> *, unsigned) const;
 };
@@ -86,12 +85,6 @@ inline bool CompositeShape<T, D, O>::contains(const LinAl::Vector<T, D> &point)
        return inside;
 }
 
-template<typename T, unsigned D, typename O>
-inline bool CompositeShape<T, D, O>::check_intersection(const Ray<T, D> &ray) const
-{
-       return get_intersections(ray, 0, 1);
-}
-
 template<typename T, unsigned D, typename O>
 inline unsigned CompositeShape<T, D, O>::get_max_ray_intersections() const
 {

diff --git a/source/geometry/extrudedshape.h b/source/geometry/extrudedshape.h
index 7aeedb0cd146e30e761e3c88b41d54dde680cdfb..83933b0808a02f32d8febcce5eee8c8a23ad85d0 100644 (file)
--- a/source/geometry/extrudedshape.h
+++ b/source/geometry/extrudedshape.h
@@ -33,7 +33,6 @@ public:
 
        virtual HyperBox<T, D> get_axis_aligned_bounding_box() const;
        virtual bool contains(const LinAl::Vector<T, D> &) const;
-       virtual bool check_intersection(const Ray<T, D> &) const;
        virtual unsigned get_max_ray_intersections() const;
        virtual unsigned get_intersections(const Ray<T, D> &, SurfacePoint<T, D> *, unsigned) const;
 };
@@ -92,12 +91,6 @@ inline bool ExtrudedShape<T, D>::contains(const LinAl::Vector<T, D> &point) cons
        return base->contains(LinAl::Vector<T, D-1>(point));
 }
 
-template<typename T, unsigned D>
-inline bool ExtrudedShape<T, D>::check_intersection(const Ray<T, D> &ray) const
-{
-       return get_intersections(ray, 0, 1);
-}
-
 template<typename T, unsigned D>
 inline unsigned ExtrudedShape<T, D>::get_max_ray_intersections() const
 {

diff --git a/source/geometry/hyperbox.h b/source/geometry/hyperbox.h
index 9a161f35fb0fdbc5ff604735d51eb6e1d060eeaf..11c197e72ebb059814e0c92f685ac533b72acaa2 100644 (file)
--- a/source/geometry/hyperbox.h
+++ b/source/geometry/hyperbox.h
@@ -33,7 +33,6 @@ public:
 
        virtual HyperBox<T, D> get_axis_aligned_bounding_box() const { return *this; }
        virtual bool contains(const LinAl::Vector<T, D> &) const;
-       virtual bool check_intersection(const Ray<T, D> &) const;
        virtual unsigned get_max_ray_intersections() const { return 2; }
        virtual unsigned get_intersections(const Ray<T, D> &, SurfacePoint<T, D> *, unsigned) const;
 };
@@ -77,12 +76,6 @@ inline bool HyperBox<T, D>::contains(const LinAl::Vector<T, D> &point) const
        return true;
 }
 
-template<typename T, unsigned D>
-inline bool HyperBox<T, D>::check_intersection(const Ray<T, D> &ray) const
-{
-       return get_intersections(ray, 0, 1);
-}
-
 template<typename T, unsigned D>
 inline unsigned HyperBox<T, D>::get_intersections(const Ray<T, D> &ray, SurfacePoint<T, D> *points, unsigned size) const
 {

diff --git a/source/geometry/hypersphere.h b/source/geometry/hypersphere.h
index cbec2d99af744e7182f4b5f0081379b059a14d95..abdd1939508c2a717f5856fed975da0690226a0a 100644 (file)
--- a/source/geometry/hypersphere.h
+++ b/source/geometry/hypersphere.h
@@ -32,7 +32,6 @@ public:
 
        virtual HyperBox<T, D> get_axis_aligned_bounding_box() const;
        virtual bool contains(const LinAl::Vector<T, D> &) const;
-       virtual bool check_intersection(const Ray<T, D> &) const;
        virtual unsigned get_max_ray_intersections() const { return 2; }
        virtual unsigned get_intersections(const Ray<T, D> &, SurfacePoint<T, D> *, unsigned) const;
 };
@@ -66,16 +65,6 @@ inline bool HyperSphere<T, D>::contains(const LinAl::Vector<T, D> &point) const
        return inner_product(point, point)<=radius*radius;
 }
 
-template<typename T, unsigned D>
-inline bool HyperSphere<T, D>::check_intersection(const Ray<T, D> &ray) const
-{
-       T x = inner_product(ray.get_direction(), ray.get_start());
-       if(x>0)
-               return contains(ray.get_start());
-       else
-               return contains(ray.get_start()-ray.get_direction()*x);
-}
-
 template<typename T, unsigned D>
 inline unsigned HyperSphere<T, D>::get_intersections(const Ray<T, D> &ray, SurfacePoint<T, D> *points, unsigned size) const
 {

diff --git a/source/geometry/negation.h b/source/geometry/negation.h
index 0fc01964b869efd4d841f2bee439da3feffb24d8..6746aed113f487618e0e7f254f088fd8bdc2289e 100644 (file)
--- a/source/geometry/negation.h
+++ b/source/geometry/negation.h
@@ -25,7 +25,6 @@ public:
 
        virtual HyperBox<T, D> get_axis_aligned_bounding_box() const;
        virtual bool contains(const LinAl::Vector<T, D> &) const;
-       virtual bool check_intersection(const Ray<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;
 };
@@ -54,12 +53,6 @@ inline bool Negation<T, D>::contains(const LinAl::Vector<T, D> &point) const
        return !shape->contains(point);
 }
 
-template<typename T, unsigned D>
-inline bool Negation<T, D>::check_intersection(const Ray<T, D> &ray) const
-{
-       return get_intersections(ray, 0, 1);
-}
-
 template<typename T, unsigned D>
 inline unsigned Negation<T, D>::get_intersections(const Ray<T, D> &ray, SurfacePoint<T, D> *points, unsigned size) const
 {

diff --git a/source/geometry/shape.h b/source/geometry/shape.h
index 3f52613bef98d9df47e3c935fd4ddca213e98b82..7b1d190b5a762b82c7213a012e58190c7ba8d66c 100644 (file)
--- a/source/geometry/shape.h
+++ b/source/geometry/shape.h
@@ -33,14 +33,20 @@ public:
 
        virtual HyperBox<T, D> get_axis_aligned_bounding_box() const = 0;
        virtual bool contains(const LinAl::Vector<T, D> &) const = 0;
-       virtual bool check_intersection(const Ray<T, D> &) const = 0;
+       bool check_intersection(const Ray<T, D> &) const;
        virtual unsigned get_max_ray_intersections() const = 0;
        virtual unsigned get_intersections(const Ray<T, D> &, SurfacePoint<T, D> *, unsigned) const = 0;
        std::vector<SurfacePoint<T, D> > get_intersections(const Ray<T, D> &) const;
 };
 
 template<typename T, unsigned D>
-std::vector<SurfacePoint<T, D> > Shape<T, D>::get_intersections(const Ray<T, D> &ray) const
+inline bool Shape<T, D>::check_intersection(const Ray<T, D> &ray) const
+{
+       return get_intersections(ray, 0, 1);
+}
+
+template<typename T, unsigned D>
+inline std::vector<SurfacePoint<T, D> > Shape<T, D>::get_intersections(const Ray<T, D> &ray) const
 {
        unsigned max_isect = get_max_ray_intersections();
        std::vector<SurfacePoint<T, D> > points(max_isect);

diff --git a/source/geometry/transformedshape.h b/source/geometry/transformedshape.h
index 5a5cf11e8dab05ded01006b2d21189b7b97dc5c9..02587bfd87877efac86f365d39e1a68e072a7020 100644 (file)
--- a/source/geometry/transformedshape.h
+++ b/source/geometry/transformedshape.h
@@ -35,7 +35,6 @@ public:
 private:
        Ray<T, D> make_local_ray(const Ray<T, D> &) const;
 public:
-       virtual bool check_intersection(const Ray<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;
 };
@@ -96,12 +95,6 @@ inline Ray<T, D> TransformedShape<T, D>::make_local_ray(const Ray<T, D> &ray) co
        return Ray<T, D>(inverse_trans.transform(ray.get_start()), local_dir, ray.get_limit()*distortion);
 }
 
-template<typename T, unsigned D>
-inline bool TransformedShape<T, D>::check_intersection(const Ray<T, D> &ray) const
-{
-       return shape->check_intersection(make_local_ray(ray));
-}
-
 template<typename T, unsigned D>
 inline unsigned TransformedShape<T, D>::get_intersections(const Ray<T, D> &ray, SurfacePoint<T, D> *points, unsigned size) const
 {