src/HYDROData/HYDROData_ObstacleAltitude.cxx

   1
   2 #include "HYDROData_ObstacleAltitude.h"
   3
   4 #include "HYDROData_Document.h"
   5 #include "HYDROData_Object.h"
   6 #include "HYDROData_Projection.h"
   7
   8 #include <Precision.hxx>
   9
  10 #include <TopoDS_Shape.hxx>
  11
  12 IMPLEMENT_STANDARD_HANDLE(HYDROData_ObstacleAltitude, HYDROData_IAltitudeObject)
  13 IMPLEMENT_STANDARD_RTTIEXT(HYDROData_ObstacleAltitude, HYDROData_IAltitudeObject)
  14
  15 HYDROData_ObstacleAltitude::HYDROData_ObstacleAltitude()
  16 : HYDROData_IAltitudeObject()
  17 {
  18 }
  19
  20 HYDROData_ObstacleAltitude::~HYDROData_ObstacleAltitude()
  21 {
  22 }
  23
  24 double HYDROData_ObstacleAltitude::GetAltitudeForPoint( const gp_XY& thePoint ) const
  25 {
  26   double aResAltitude = GetInvalidAltitude();
  27
  28   Handle(HYDROData_Object) anObject =
  29     Handle(HYDROData_Object)::DownCast( GetFatherObject() );
  30   if ( anObject.IsNull() )
  31     return aResAltitude;
  32
  33   TopoDS_Shape anObjectShape3D = anObject->GetShape3D();
  34   if ( anObjectShape3D.IsNull() )
  35     return aResAltitude;
  36
  37   HYDROData_Make3dMesh aMesher3D( anObjectShape3D, Precision::Intersection() );
  38
  39   gp_Pnt aHighestPoint;
  40   if ( aMesher3D.GetHighestOriginal( thePoint.X(), thePoint.Y(), aHighestPoint ) )
  41     aResAltitude = aHighestPoint.Z();
  42
  43   return aResAltitude;
  44 }
  45
  46
  47
  48