UT_OBBox.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        UT_OBBox.h ( UT Library, C++)
 *
 * COMMENTS:
 */

#ifndef __UT_OBBox_h__
#define __UT_OBBox_h__

#include "UT_API.h"
#include "UT_Matrix3.h"
#include "UT_Vector3.h"
#include "UT_BoundingBox.h"
#include "UT_QuickHull.h"

template<typename T>
class UT_Array;

/// Arbitrarily Oriented Bounding (OBB)
template <typename T>
class UT_API UT_OBBoxT
{
public:
    UT_OBBoxT();
    UT_OBBoxT(const UT_Matrix4T<T> &transform, const UT_BoundingBoxT<T> &bbox);
    UT_OBBoxT(const UT_Array<UT_Vector3T<T> > &points, int refinement = 6);

    bool operator==(const UT_OBBoxT<T> &other) const;

    /// Calculate the OBB for the set of points
    void calcOBB(const UT_Array<UT_Vector3T<T> > &points, int refinement = 6);
    /// Return the basis that defines the orientation of the OBB
    UT_Matrix3T<T> getBasis() const {return myBasis;}
    /// Return the half radii(side length) of the OBB
    UT_Vector3T<T> getRadii() const {return myRadii;}
    /// Return the rotation i radians
    UT_Vector3T<T> getRotation() const {return myRotation;}
    /// Return the center of the OBB
    UT_Vector3T<T> getCenter() const {return myCenter;}
    /// Return the tranform matrix of the OBB
    UT_Matrix4T<T> getTransform() const;
    /// Return the non-oriented bounding box.
    UT_BoundingBoxT<T> getBBox() const {return myBB;}
    /// Return the given axis direction
    UT_Vector3T<T> getAxis(int axis) const;
    /// Return the minimum axis direction
    UT_Vector3T<T> getMinAxis() const;

protected:
    UT_BoundingBoxT<T>  myBB;
    UT_Matrix3T<T>      myBasis;
    UT_Vector3T<T>      myCenter;
    UT_Vector3T<T>      myRotation;
    UT_Vector3T<T>      myRadii;
    bool                init;
};

typedef UT_OBBoxT<fpreal>       UT_OBBoxR;
typedef UT_OBBoxT<fpreal32>     UT_OBBoxF;
typedef UT_OBBoxT<fpreal64>     UT_OBBoxD;
typedef UT_OBBoxT<float>        UT_OBBox;       // deprecated

#endif