OCCT

// Created on: 1997-04-14
// Created by: Olga PILLOT
// Copyright (c) 1997-1999 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 _BRepFeat_MakeLinearForm_HeaderFile
#define _BRepFeat_MakeLinearForm_HeaderFile

#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.hxx>

#include <gp_Vec.hxx>
#include <TopoDS_Shape.hxx>
#include <NCollection_List.hxx>
#include <TopTools_ShapeMapHasher.hxx>
#include <NCollection_DataMap.hxx>
#include <BRepFeat_RibSlot.hxx>
#include <Standard_Integer.hxx>
class Geom_Curve;
class Geom_Plane;
class TopoDS_Shape;
class TopoDS_Wire;
class TopoDS_Edge;
class TopoDS_Face;
class gp_Pnt;

//! Builds a rib or a groove along a developable, planar surface.
//! The semantics of mechanical features is built around
//! giving thickness to a contour. This thickness can either
//! be symmetrical - on one side of the contour - or
//! dissymmetrical - on both sides. As in the semantics of
//! form features, the thickness is defined by construction of
//! shapes in specific contexts.
//! The development contexts differ, however, in case of
//! mechanical features. Here they include extrusion:
//! -   to a limiting face of the basis shape
//! -   to or from a limiting plane
//! -   to a height.
class BRepFeat_MakeLinearForm : public BRepFeat_RibSlot
{
public:
  DEFINE_STANDARD_ALLOC

  //! initializes the linear form class
  BRepFeat_MakeLinearForm();

  //! contour W, a shape Sbase and a
  //! plane P are initialized to serve as the basic
  //! elements in the construction of the rib or groove.
  //! Direction and Direction1 give The vectors for
  //! defining the direction(s) in which thickness will be built up.
  //! Fuse offers a choice between:
  //! -   removing matter with a Boolean cut using the
  //! setting 0 in case of the groove
  //! -   adding matter with Boolean fusion using the
  //! setting 1 in case of the rib.
  BRepFeat_MakeLinearForm(const TopoDS_Shape&            Sbase,
                          const TopoDS_Wire&             W,
                          const occ::handle<Geom_Plane>& P,
                          const gp_Vec&                  Direction,
                          const gp_Vec&                  Direction1,
                          const int                      Fuse,
                          const bool                     Modify);

  //! Initializes this construction algorithm.
  //! A contour W, a shape Sbase and a plane P are
  //! initialized to serve as the basic elements in the
  //! construction of the rib or groove. The vectors for
  //! defining the direction(s) in which thickness will be built
  //! up are given by Direction and Direction1.
  //! Fuse offers a choice between:
  //! -   removing matter with a Boolean cut using the setting
  //! 0 in case of the groove
  //! -   adding matter with Boolean fusion using the setting 1
  //! in case of the rib.
  Standard_EXPORT void Init(const TopoDS_Shape&            Sbase,
                            const TopoDS_Wire&             W,
                            const occ::handle<Geom_Plane>& P,
                            const gp_Vec&                  Direction,
                            const gp_Vec&                  Direction1,
                            const int                      Fuse,
                            const bool                     Modify);

  //! Indicates that the edge <E> will slide on the face
  //! <OnFace>.
  //! Raises ConstructionError if the face does not belong to the
  //! basis shape, or the edge to the prismed shape.
  Standard_EXPORT void Add(const TopoDS_Edge& E, const TopoDS_Face& OnFace);

  //! Performs a prism from the wire to the plane along the
  //! basis shape Sbase. Reconstructs the feature topologically.
  Standard_EXPORT void Perform();

  //! Limits construction of the linear form feature by using
  //! one of the following three semantics:
  //! -   from a limiting plane
  //! -   to a limiting plane
  //! -   from one limiting plane to another.
  //! The setting is provided by a flag, flag, which can be set
  //! to from and/or until. The third semantic possibility above
  //! is selected by showing both from and until at the same time.
  Standard_EXPORT void TransformShapeFU(const int flag);

  Standard_EXPORT bool Propagate(NCollection_List<TopoDS_Shape>& L,
                                 const TopoDS_Face&              F,
                                 const gp_Pnt&                   FPoint,
                                 const gp_Pnt&                   LPoint,
                                 bool&                           falseside);

private:
  occ::handle<Geom_Curve> myCrv;
  gp_Vec                  myDir;
  gp_Vec                  myDir1;
  occ::handle<Geom_Plane> myPln;
  double                  myBnd;
  NCollection_DataMap<TopoDS_Shape, NCollection_List<TopoDS_Shape>, TopTools_ShapeMapHasher>
                                 mySlface;
  NCollection_List<TopoDS_Shape> myListOfEdges;
  double                         myTol;
};

#include <BRepFeat_MakeLinearForm.lxx>

#endif // _BRepFeat_MakeLinearForm_HeaderFile