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// Copyright: Matra-Datavision 1995
// File: Select2D_SensitiveCircle.cxx
// Created: Mon Jan 30 16:58:02 1995
// Author: Mister rmi
// <rmi>
#include <Select2D_SensitiveCircle.ixx>
#include <BndLib.hxx>
#include <Bnd_Box2d.hxx>
//=====================================================
// Function : Create
// Purpose :Constructor
//=====================================================
Select2D_SensitiveCircle::
Select2D_SensitiveCircle(const Handle(SelectBasics_EntityOwner)& OwnerId,
const gp_Circ2d& aCirc,
const Select2D_TypeOfSelection atype):
Select2D_SensitiveEntity(OwnerId),
myCirc(aCirc),
mytype(atype){}
//=====================================================
// Function : Areas
// Purpose :
//=====================================================
void Select2D_SensitiveCircle::
Areas (SelectBasics_ListOfBox2d& boxes)
{
Bnd_Box2d abox;
BndLib::Add(myCirc,myCirc.Radius()/100.,abox);
boxes.Append(abox);
}
//=====================================================
// Function : Matches
// Purpose :
//=====================================================
Standard_Boolean Select2D_SensitiveCircle::
Matches (const Standard_Real X,
const Standard_Real Y,
const Standard_Real aTol,
Standard_Real& DMin)
{
Standard_Real TheTol = HasOwnTolerance()? myOwnTolerance : aTol;
switch(mytype){
case Select2D_TOS_INTERIOR:
{
if(myCirc.Contains(gp_Pnt2d(X,Y),TheTol) )
{DMin=0.;
return Standard_True;}
else
{DMin=myCirc.Distance(gp_Pnt2d(X,Y));}
}
case Select2D_TOS_BOUNDARY:
{
DMin = myCirc.Distance(gp_Pnt2d(X,Y));
if(DMin<= TheTol) return Standard_True;
}
}
return Standard_False;
}
Standard_Boolean Select2D_SensitiveCircle::
Matches (const Standard_Real XMin,
const Standard_Real YMin,
const Standard_Real XMax,
const Standard_Real YMax,
const Standard_Real aTol)
{
Standard_Real TheTol = HasOwnTolerance()? myOwnTolerance : aTol;
Bnd_Box2d abox, BoundBox;
BoundBox.Update(XMin-TheTol,YMin-TheTol,XMax+TheTol,YMax+TheTol);
BndLib::Add(myCirc,myCirc.Radius()/100.,abox);
if(BoundBox.IsOut(abox)) return Standard_False;
return Standard_True;
}
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