GD/GD_Point.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.
 *
 * Produced by:
 *      Cristin Barghiel
 *      Side Effects Software Inc.
 *      20 Maud St.
 *      Toronto, Ontario,  M5V 2M5
 *      Canada
 *      416-366-4607
 *
 * NAME:        Geometry Library (C++)
 *
 * COMMENTS:
 *
 */

#ifndef __GD_Point_H__
#define __GD_Point_H__

#include "GD_API.h"
#include <iostream.h>
#include <UT/UT_Vector3.h>
#include <GB/GB_Element.h>

class GD_API GD_Point : public GB_Element
{
public:
    // Class constructors and destructors.
    GD_Point()                      : GB_Element() { myPos.assign(0,0,1); }
    GD_Point(const UT_Vector3 &pos) : GB_Element() { myPos = pos; }
    virtual ~GD_Point();

    void                 copy(const GD_Point &src) { myPos = src.myPos; }

    UT_Vector3          &getPos()       { return myPos; }
    const UT_Vector3    &getPos() const { return myPos; }

    virtual int          isPrimary(void) const;

    // Express this point in homogeneous coordinates or vice-versa:
    void                homogenize  (void)      { myPos.homogenize(); }
    void                dehomogenize(void)      { myPos.dehomogenize(); }

    // I/O methods:
    int                 save(ostream &os, int binary) const;
    bool                load(UT_IStream &is);

private:
    UT_Vector3          myPos;  // Position of the point (homogeneous coords)
};

#endif

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