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| |
| #ifndef QT3DRENDER_RENDER_SPHERE_H |
| #define QT3DRENDER_RENDER_SPHERE_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of other Qt classes. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <Qt3DRender/private/qt3drender_global_p.h> |
| #include <Qt3DCore/qnodeid.h> |
| #include <Qt3DCore/private/matrix4x4_p.h> |
| #include <Qt3DRender/private/boundingsphere_p.h> |
| |
| #include <QMatrix4x4> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace Qt3DRender { |
| |
| namespace Render { |
| |
| class Q_3DRENDERSHARED_PRIVATE_EXPORT Sphere : public RayCasting::BoundingSphere |
| { |
| public: |
| inline Sphere(Qt3DCore::QNodeId i = Qt3DCore::QNodeId()) |
| : m_center() |
| , m_radius(-1.0f) |
| , m_id(i) |
| {} |
| |
| inline Sphere(const Vector3D &c, float r, Qt3DCore::QNodeId i = Qt3DCore::QNodeId()) |
| : m_center(c) |
| , m_radius(r) |
| , m_id(i) |
| {} |
| |
| void setCenter(const Vector3D &c); |
| Vector3D center() const override; |
| |
| bool isNull() const { return m_center == Vector3D() && m_radius == -1.0f; } |
| |
| void setRadius(float r); |
| float radius() const override; |
| |
| void clear(); |
| void initializeFromPoints(const QVector<Vector3D> &points); |
| void expandToContain(const Vector3D &point); |
| inline void expandToContain(const QVector<Vector3D> &points) |
| { |
| for (const Vector3D &p : points) |
| expandToContain(p); |
| } |
| |
| void expandToContain(const Sphere &sphere); |
| |
| Sphere transformed(const Matrix4x4 &mat) const; |
| inline Sphere &transform(const Matrix4x4 &mat) |
| { |
| *this = transformed(mat); |
| return *this; |
| } |
| |
| Qt3DCore::QNodeId id() const final; |
| bool intersects(const RayCasting::QRay3D &ray, Vector3D *q, Vector3D *uvw = nullptr) const final; |
| Type type() const final; |
| |
| static Sphere fromPoints(const QVector<Vector3D> &points); |
| |
| private: |
| Vector3D m_center; |
| float m_radius; |
| Qt3DCore::QNodeId m_id; |
| |
| static const float ms_epsilon; |
| }; |
| |
| inline void Sphere::setCenter(const Vector3D &c) |
| { |
| m_center = c; |
| } |
| |
| inline Vector3D Sphere::center() const |
| { |
| return m_center; |
| } |
| |
| inline void Sphere::setRadius(float r) |
| { |
| Q_ASSERT(r >= 0.0f); |
| if (r >= 0.0f) |
| m_radius = r; |
| } |
| |
| inline float Sphere::radius() const |
| { |
| return m_radius; |
| } |
| |
| inline void Sphere::clear() |
| { |
| m_center = Vector3D(); |
| m_radius = -1.0f; |
| } |
| |
| inline bool intersects(const Sphere &a, const Sphere &b) |
| { |
| if (a.isNull() || b.isNull()) |
| return false; |
| |
| // Calculate squared distance between sphere centers |
| const Vector3D d = a.center() - b.center(); |
| const float distSq = Vector3D::dotProduct(d, d); |
| |
| // Spheres intersect if squared distance is less than squared |
| // sum of radii |
| const float sumRadii = a.radius() + b.radius(); |
| return distSq <= sumRadii * sumRadii; |
| } |
| |
| #ifndef QT_NO_DEBUG_STREAM |
| Q_3DRENDERSHARED_EXPORT QDebug operator<<(QDebug dbg, const Sphere &sphere); |
| #endif |
| |
| } // Render |
| |
| } // Qt3DRender |
| |
| QT_END_NAMESPACE |
| |
| Q_DECLARE_METATYPE(Qt3DRender::Render::Sphere) // LCOV_EXCL_LINE |
| |
| #endif // QT3DRENDER_RENDER_SPHERE_H |