GeScale2d.h

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// Copyright (C) 2002-2022, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
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// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Open Design Alliance software pursuant to a license 
//   agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2022 by Open Design Alliance. 
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#ifndef OD_GESCL2D_H
#define OD_GESCL2D_H 
class OdGeMatrix2d;
class OdGeScale3d;
#include "Ge/GeGbl.h"
#include "TD_PackPush.h"
 
class GE_TOOLKIT_EXPORT OdGeScale2d
{
public:
 
  OdGeScale2d();
  
  OdGeScale2d(
    double factor);
  
  OdGeScale2d(
    double xFactor,
    double yFactor);
 
  GE_STATIC_EXPORT static const   OdGeScale2d kIdentity; // Multplicitive identity vector.
 
  OdGeScale2d operator *(
    const OdGeScale2d& scaleVec) const;
 
  friend OdGeScale2d operator *(
    double factor,
    const OdGeScale2d& scaleVec);
 
  OdGeScale2d& operator *=(
    const OdGeScale2d& scaleVec);
 
  OdGeScale2d& preMultBy(const OdGeScale2d& leftSide)
  {
    return operator *=(leftSide);
  }
 
  OdGeScale2d& postMultBy(const OdGeScale2d& rightSide)
  {
    return operator *=(rightSide);
  }
 
 
  OdGeScale2d& setToProduct(
    const OdGeScale2d& scaleVec, double factor);
 
  OdGeScale2d& setToProduct(
    const OdGeScale2d& scaleVec1,
    const OdGeScale2d& scaleVec2);
 
  OdGeScale2d operator *(
    double factor) const;
 
 
  OdGeScale2d& operator *=(
    double factor);
 
  OdGeScale2d inverse() const;
 
  OdGeScale2d& invert();
 
  bool isProportional(
    const OdGeTol& tol = OdGeContext::gTol) const;
 
  bool operator ==(
    const OdGeScale2d& scaleVec) const;
  
  bool operator !=(
    const OdGeScale2d& scaleVec) const;
 
  bool isEqualTo(
    const OdGeScale2d& scaleVec,
    const OdGeTol& tol = OdGeContext::gTol) const;
 
  double& operator [](
    unsigned int i)
  {
    return * (&sx + i);
  }
  
  double operator [](
    unsigned int i) const
  {
    return * (&sx + i);
  }
 
  OdGeScale2d& set(
    double xFactor, 
    double yFactor);
 
 
  void getMatrix(
    OdGeMatrix2d& xfm) const;
    
  OdGeScale2d& extractScale(
    const OdGeMatrix2d& xfm);
    
  OdGeScale2d& removeScale(
    OdGeMatrix2d& xfm);
 
  operator OdGeMatrix2d() const;
  operator OdGeScale3d() const;
 
  double sx; // X scale *factor*.
  double sy; // Y scale *factor*.
};
 
#include "TD_PackPop.h"
 
#endif // OD_GESCL2D_H