TS/TS_Quadric.h

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/* quadric.h
 *
 * Copyright 1993,1994,1995 Algorithmic Arts, Inc.
 * All Rights Reserved.
 *
 * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Algorithmic Arts, Inc.;
 * the contents of this file may not be disclosed to third parties, copied or
 * duplicated in any form, in whole or in part, without the prior written
 * permission of Algorithmic Arts, Inc.
 *
 * AUTHOR:
 *      Dave Gordon
 *
 *
 * $XDate: 1995/10/19 19:14:32 $
 * $XRevision: 1.3 $
 *
 *  Basic quadric surface data types.
 *
 */

#ifndef _TS_QUADRIC_H_
#define _TS_QUADRIC_H_

#include "TS_API.h"
#include <UT/UT_Vector3.h>
#include <UT/UT_Matrix4.h>
#include <UT/UT_DMatrix4.h>
#include <UT/UT_BoundingBox.h>

class Conic;

class TS_API TS_Quadric {
  public:
                TS_Quadric();
                TS_Quadric(const UT_Matrix4 &);
                operator UT_Matrix4() const;
    TS_Quadric  &operator*=(float rhs);
    TS_Quadric  &operator+=(float rhs);
    TS_Quadric  &operator/=(float rhs);
    TS_Quadric  &operator-=(float rhs);
    void        toMatrix4(UT_Matrix4 &m) const;
    void        fromMatrix4(const UT_Matrix4 &m);
    void        toMatrix4(UT_DMatrix4 &m) const;
    void        fromMatrix4(const UT_DMatrix4 &m);
    void        cylinder(const UT_Vector3 &p0, const UT_Vector3 &axis, float radius = 1.0F);
    void        sphere(const UT_Vector3 &center, float radius = 1.0F);
    void        planes(const UT_Vector3 &p0, const UT_Vector3 &n, float r);
    void        transform(const UT_Matrix4 &m);
    void        zeroTransform();
    int         computeBound(UT_Vector3 &min, UT_Vector3 &max) const;
    int         computeBound(UT_BoundingBox &bound) const;
    fpreal64    eval(const UT_Vector3 &) const;
    fpreal64    eval2(const UT_Vector3 &) const;
    fpreal64    evalMix(const UT_Vector3 &p0, const UT_Vector3 &p1) const;
    void        evalGrad(const UT_Vector3 &p, UT_Vector3 &n) const;


    fpreal64    xx, yy, zz, xy, xz, yz, xw, yw, zw, ww;
};


#endif  // _TS_QUADRIC_H_

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