//--------------------------------------------------------------------
//
//  File Name : IGESDimen_CenterLine.cxx
//  Date      :
//  Author    : CKY / Contract Toubro-Larsen
//  Copyright : MATRA-DATAVISION 1993
//
//--------------------------------------------------------------------

#include <IGESDimen_CenterLine.ixx>
#include <Standard_DimensionMismatch.hxx>
#include <IGESData_LineFontEntity.hxx>
#include <gp_GTrsf.hxx>


    IGESDimen_CenterLine::IGESDimen_CenterLine ()    {  }


    void  IGESDimen_CenterLine::Init
  (const Standard_Integer aDataType,
   const Standard_Real aZdisp,
   const Handle(TColgp_HArray1OfXY)& dataPnts)
{
  if (dataPnts->Lower() != 1)
    Standard_DimensionMismatch::Raise("IGESDimen_CenterLine : Init");
  theDatatype      = aDataType;
  theZDisplacement = aZdisp;
  theDataPoints    = dataPnts;
  InitTypeAndForm(106,FormNumber());
// FormNumber :  20:points, 21:centres cercles
}

    void  IGESDimen_CenterLine::SetCrossHair (const Standard_Boolean mode)
{
  InitTypeAndForm(106, (mode ? 20 : 21));
}


    Standard_Integer  IGESDimen_CenterLine::Datatype () const 
{
  return theDatatype;
}

    Standard_Integer  IGESDimen_CenterLine::NbPoints () const 
{
  return theDataPoints->Length();
}

    Standard_Real  IGESDimen_CenterLine::ZDisplacement () const 
{
  return theZDisplacement;
}

    gp_Pnt  IGESDimen_CenterLine::Point (const Standard_Integer Index) const 
{
  gp_XY tempXY = theDataPoints->Value(Index);
  gp_Pnt point(tempXY.X(), tempXY.Y(), theZDisplacement);
  return point;
}

    gp_Pnt  IGESDimen_CenterLine::TransformedPoint
  (const Standard_Integer Index) const 
{
  gp_XY point2d = (theDataPoints->Value(Index));
  gp_XYZ point(point2d.X(), point2d.Y(), theZDisplacement);
  if (HasTransf()) Location().Transforms(point);
  return gp_Pnt(point);
}

    Standard_Boolean  IGESDimen_CenterLine::IsCrossHair () const 
{
  return(FormNumber() == 20);
}