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// File: Bnd_B2x.lxx
// Created: 08.09.05 20:13:23
// Author: Alexander GRIGORIEV
// Copyright: Open Cascade 2005
#include <gp_Pnt2d.hxx>
#ifndef Bnd_B2x_RealLast
#define Bnd_B2x_RealLast RealType(1e30);
#endif
/**
* Empty constructor
*/
inline Bnd_B2x::Bnd_B2x ()
{
Clear();
}
/**
* Constructor.
* @param theCenter
* Center of the created box
* @param theHSize
* Half-diagonal of the box, both X and Y should be non-negative
*/
inline Bnd_B2x::Bnd_B2x (const gp_XY& theCenter,
const gp_XY& theHSize)
{
myCenter[0] = RealType(theCenter.X());
myCenter[1] = RealType(theCenter.Y());
myHSize[0] = RealType(theHSize.X());
myHSize[1] = RealType(theHSize.Y());
}
/**
* Reset the box data.
*/
inline void Bnd_B2x::Clear ()
{
myCenter[0] = Bnd_B2x_RealLast;
myCenter[1] = Bnd_B2x_RealLast;
myHSize[0] = -Bnd_B2x_RealLast;
myHSize[1] = -Bnd_B2x_RealLast;
}
/**
* Check if the box is empty.
*/
inline Standard_Boolean Bnd_B2x::IsVoid () const
{
return (myHSize[0] < -1e-5);
}
/**
* Update the box by point.
*/
inline void Bnd_B2x::Add (const gp_Pnt2d& thePnt)
{
Add (thePnt.XY());
}
/**
* Update the box by another box.
*/
inline void Bnd_B2x::Add (const Bnd_B2x& theBox)
{
if (theBox.IsVoid() == Standard_False) {
Add (theBox.CornerMin());
Add (theBox.CornerMax());
}
}
/**
* Query a box corner.
*/
inline gp_XY Bnd_B2x::CornerMin () const
{
return gp_XY (myCenter[0] - myHSize[0], myCenter[1] - myHSize[1]);
}
/**
* Query a box corner.
*/
inline gp_XY Bnd_B2x::CornerMax () const
{
return gp_XY (myCenter[0] + myHSize[0], myCenter[1] + myHSize[1]);
}
/**
* Query the square diagonal.
*/
inline Standard_Real Bnd_B2x::SquareExtent () const
{
return 4 * (myHSize[0] * myHSize[0] + myHSize[1] * myHSize[1]);
}
/**
* Set the Center coordinates.
*/
inline void Bnd_B2x::SetCenter (const gp_XY& theCenter)
{
myCenter[0] = RealType(theCenter.X());
myCenter[1] = RealType(theCenter.Y());
}
/**
* Set the HSize coordinates.
*/
inline void Bnd_B2x::SetHSize (const gp_XY& theHSize)
{
myHSize[0] = RealType(theHSize.X());
myHSize[1] = RealType(theHSize.Y());
}
/**
* Increase the box.
* @param aDiff
* absolute value of this parameter is added to the box size in all dimensions.
*/
inline void Bnd_B2x::Enlarge (const Standard_Real aDiff)
{
const RealType aD = RealType(Abs(aDiff));
myHSize[0] += aD;
myHSize[1] += aD;
}
/**
* Intersection Box - Point
*/
inline Standard_Boolean Bnd_B2x::IsOut (const gp_XY& thePnt) const
{
return (Abs(RealType(thePnt.X()) - myCenter[0]) > myHSize[0] ||
Abs(RealType(thePnt.Y()) - myCenter[1]) > myHSize[1]);
}
/**
* Intersection Box-Box.
*/
inline Standard_Boolean Bnd_B2x::IsOut (const Bnd_B2x& theBox) const
{
return (Abs(theBox.myCenter[0]-myCenter[0]) > theBox.myHSize[0]+myHSize[0] ||
Abs(theBox.myCenter[1]-myCenter[1]) > theBox.myHSize[1]+myHSize[1]);
}
/**
* Test the complete inclusion of this box in theBox.
*/
inline Standard_Boolean Bnd_B2x::IsIn (const Bnd_B2x& theBox) const
{
return (Abs(theBox.myCenter[0]-myCenter[0]) < theBox.myHSize[0]-myHSize[0] &&
Abs(theBox.myCenter[1]-myCenter[1]) < theBox.myHSize[1]-myHSize[1]);
}
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