1 // Created on: 1997-03-04
2 // Created by: Jean-Pierre COMBE
3 // Copyright (c) 1997-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
5 //
6 // This file is part of Open CASCADE Technology software library.
7 //
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
13 //
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
16 
17 #ifndef _AIS_OffsetDimension_HeaderFile
18 #define _AIS_OffsetDimension_HeaderFile
19 
20 #include <AIS_Relation.hxx>
21 #include <AIS_KindOfDimension.hxx>
22 
23 DEFINE_STANDARD_HANDLE(AIS_OffsetDimension, AIS_Relation)
24 
25 //! A framework to display dimensions of offsets.
26 //! The relation between the offset and the basis shape
27 //! is indicated. This relation is displayed with arrows and
28 //! text. The text gives the dsitance between the offset
29 //! and the basis shape.
30 class AIS_OffsetDimension : public AIS_Relation
31 {
32   DEFINE_STANDARD_RTTIEXT(AIS_OffsetDimension, AIS_Relation)
33 public:
34 
35   //! Constructs the offset display object defined by the
36   //! first shape aFShape, the second shape aSShape, the
37   //! dimension aVal, and the text aText.
38   Standard_EXPORT AIS_OffsetDimension(const TopoDS_Shape& FistShape, const TopoDS_Shape& SecondShape, const Standard_Real aVal, const TCollection_ExtendedString& aText);
39 
40   //! computes the presentation according to a point of view
41   //! given by <aProjector>.
42   //! To be Used when the associated degenerated Presentations
43   //! have been transformed by <aTrsf> which is not a Pure
44   //! Translation. The HLR Prs can't be deducted automatically
45   //! WARNING :<aTrsf> must be applied
46   //! to the object to display before computation  !!!
47   Standard_EXPORT virtual void Compute (const Handle(Prs3d_Projector)& aProjector, const Handle(Geom_Transformation)& aTrsf, const Handle(Prs3d_Presentation)& aPresentation) Standard_OVERRIDE;
48 
49 
50   //! Indicates that the dimension we are concerned with is an offset.
51     virtual AIS_KindOfDimension KindOfDimension() const Standard_OVERRIDE;
52 
53   //! Returns true if the offset datum is movable.
54     virtual Standard_Boolean IsMovable() const Standard_OVERRIDE;
55 
56   //! Sets a transformation aTrsf for presentation and
57   //! selection to a relative position.
58     void SetRelativePos (const gp_Trsf& aTrsf);
59 
60 private:
61 
62   Standard_EXPORT virtual void Compute (const Handle(PrsMgr_PresentationManager3d)& aPresentationManager, const Handle(Prs3d_Presentation)& aPresentation, const Standard_Integer aMode = 0) Standard_OVERRIDE;
63 
64   Standard_EXPORT void Compute (const Handle(Prs3d_Projector)& aProjector, const Handle(Prs3d_Presentation)& aPresentation) Standard_OVERRIDE;
65 
66   Standard_EXPORT virtual void ComputeSelection (const Handle(SelectMgr_Selection)& aSelection, const Standard_Integer aMode) Standard_OVERRIDE;
67 
68   Standard_EXPORT void ComputeTwoFacesOffset (const Handle(Prs3d_Presentation)& aPresentation, const gp_Trsf& aTrsf);
69 
70   Standard_EXPORT void ComputeTwoAxesOffset (const Handle(Prs3d_Presentation)& aPresentation, const gp_Trsf& aTrsf);
71 
72   Standard_EXPORT void ComputeAxeFaceOffset (const Handle(Prs3d_Presentation)& aPresentation, const gp_Trsf& aTrsf);
73 
74   gp_Pnt myFAttach;
75   gp_Pnt mySAttach;
76   gp_Dir myDirAttach;
77   gp_Dir myDirAttach2;
78   gp_Trsf myRelativePos;
79 
80 };
81 
82 #include <AIS_OffsetDimension.lxx>
83 
84 #endif // _AIS_OffsetDimension_HeaderFile
85