Transform.hxx

// 
// Copyright (C) 2006 James M. Lawrence.  All rights reserved.
// 
// software: esve-1.0.3
// file: esve/engine/dim3/Transform.hxx
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 
// 2. The origin of this software must not be misrepresented; you must
//    not claim that you wrote the original software.  If you use this
//    software in a product, an acknowledgment in the product 
//    documentation would be appreciated but is not required.
// 
// 3. Altered source versions must be plainly marked as such, and must
//    not be misrepresented as being the original software.
// 
// 4. The name of the author may not be used to endorse or promote
//    products derived from this software without specific prior written
//    permission.
// 
// THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY,
// AND WITH NO CLAIM AS TO ITS SUITABILITY FOR ANY PURPOSE.  IN NO EVENT
// SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM WHATSOEVER MADE IN CONNECTION
// TO THIS SOFTWARE.
// 
#ifndef esve_engine_dim3_Transform_hxx
#define esve_engine_dim3_Transform_hxx

#include <esve/types/quat.hxx>
#include <esve/types/pure.hxx>

namespace esve { namespace engine { namespace dim3 {


class Transform
{
public:
    static const Transform & IDENTITY ;


    virtual const types::quat & rotation() const = 0 ;
    virtual void rotation( const types::quat & a ) = 0 ;

    virtual const types::pure & translation() const = 0 ;
    virtual void translation( const types::pure & a ) = 0 ;

    virtual types::real scaling() const  = 0 ;
    virtual void scaling( types::real a ) = 0 ;



    virtual void left_act( const Transform & a ) = 0 ;

    virtual void right_act( const Transform & a ) = 0 ;

    virtual void act( const Transform & action,
                      const Transform & basis ) = 0 ;

    virtual
    void
    rotate( types::real angle,
            const types::pure & axis,
            const Transform & basis = IDENTITY ) = 0 ;

    virtual
    void
    translate( const types::pure & dt,
               const Transform & basis = IDENTITY ) = 0 ;

    virtual
    void
    scalate( types::real ds,
             const Transform & basis = IDENTITY ) = 0 ;


    virtual void identity() = 0 ;

    virtual void invert() = 0 ;

    virtual void assign( const Transform & a ) = 0 ;

    virtual void normalize() = 0 ;

    virtual bool operator==( const Transform & ) const = 0 ;

    virtual bool operator!=( const Transform & ) const = 0 ;


    virtual ~Transform() = 0 ;

protected:
    Transform() ;

private:
    Transform( const Transform & ) ;
    Transform & operator=( const Transform & ) ;
} ;

}}} // namespace esve::engine::dim3

#endif

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