0027104: DownCast() cannot return null for mismatched handle

[occt.git] / src / IGESAppli / IGESAppli_NodalConstraint.hxx

// Created on: 1993-01-11
// Created by: CKY / Contract Toubro-Larsen ( Anand NATRAJAN )
// Copyright (c) 1993-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#ifndef _IGESAppli_NodalConstraint_HeaderFile
#define _IGESAppli_NodalConstraint_HeaderFile

#include <Standard.hxx>
#include <Standard_Type.hxx>

#include <Standard_Integer.hxx>
#include <IGESDefs_HArray1OfTabularData.hxx>
#include <IGESData_IGESEntity.hxx>
class IGESAppli_Node;
class Standard_OutOfRange;
class IGESDefs_TabularData;


class IGESAppli_NodalConstraint;
DEFINE_STANDARD_HANDLE(IGESAppli_NodalConstraint, IGESData_IGESEntity)

//! defines NodalConstraint, Type <418> Form <0>
//! in package IGESAppli
//! Relates loads and/or constraints to specific nodes in
//! the Finite Element Model by creating a relation between
//! Node entities and Tabular Data Property that contains
//! the load or constraint data
class IGESAppli_NodalConstraint : public IGESData_IGESEntity
{

public:

  
  Standard_EXPORT IGESAppli_NodalConstraint();
  
  //! This method is used to set the fields of the class
  //! NodalConstraint
  //! - aType      : Loads / Constraints
  //! - aNode      : the Node
  //! - allTabData : Tabular Data Property carrying the load
  //! or constraint vector
  Standard_EXPORT void Init (const Standard_Integer aType, const Handle(IGESAppli_Node)& aNode, const Handle(IGESDefs_HArray1OfTabularData)& allTabData);
  
  //! returns total number of cases
  Standard_EXPORT Standard_Integer NbCases() const;
  
  //! returns whether Loads (1) or Constraints (2)
  Standard_EXPORT Standard_Integer Type() const;
  
  //! returns the Node
  Standard_EXPORT Handle(IGESAppli_Node) NodeEntity() const;
  
  //! returns Tabular Data Property carrying load or constraint vector
  //! raises exception if Index <= 0 or Index > NbCases
  Standard_EXPORT Handle(IGESDefs_TabularData) TabularData (const Standard_Integer Index) const;




  DEFINE_STANDARD_RTTIEXT(IGESAppli_NodalConstraint,IGESData_IGESEntity)

protected:




private:


  Standard_Integer theType;
  Handle(IGESAppli_Node) theNode;
  Handle(IGESDefs_HArray1OfTabularData) theTabularDataProps;


};







#endif // _IGESAppli_NodalConstraint_HeaderFile