54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
#ifndef BOUNDINGVOLUMESPHERE_H
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#define BOUNDINGVOLUMESPHERE_H
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#include "BoundingVolume.h"
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#include "../Sphere3.h"
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#include "../Point3.h"
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class BoundingVolumeSphere : public BoundingVolume, public Sphere3 {
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public:
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BoundingVolumeSphere() {;}
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BoundingVolumeSphere(const Sphere3& s) : Sphere3(s) {;}
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float getVolumeSize() const {
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return (4.0f / 3.0f) * M_PI * (radius*radius*radius);
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}
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bool contains(const Point3 p) const {
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return Sphere3::contains(p);
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}
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bool intersects(const Ray3& ray) const {
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return Sphere3::intersects(ray);
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}
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/** does the volume intersect with the given volume? */
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bool intersects(const BoundingVolume& other) const {
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const BoundingVolumeSphere& sphere = (const BoundingVolumeSphere&) other;
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return Sphere3::intersects(sphere);
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}
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/** does the volume contain the given volume? */
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bool contains(const BoundingVolume& other) const {
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const BoundingVolumeSphere& sphere = (const BoundingVolumeSphere&) other;
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return Sphere3::contains(sphere);
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}
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/** construct a volume around the given point-set */
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static BoundingVolumeSphere fromVertices(const std::vector<Point3>& verts) {
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BoundingVolumeSphere bvs;
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bvs.adjustToPointSet(verts);
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return bvs;
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}
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static BoundingVolumeSphere join(const BoundingVolumeSphere a, const BoundingVolumeSphere b) {
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return BoundingVolumeSphere(Sphere3::join(a, b));
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}
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};
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#endif // BOUNDINGVOLUMESPHERE_H
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