| 7fd59977 |
1 | -- File: AIS_TangentRelation.cdl |
| 2 | -- Created: Thu Dec 5 10:43:26 1996 |
| 3 | -- Author: Jean-Pierre COMBE/Odile Olivier |
| 4 | -- <odl@sacadox.paris1.matra-dtv.fr> |
| 5 | ---Copyright: Matra Datavision 1996 |
| 6 | |
| 7 | class TangentRelation from AIS inherits Relation from AIS |
| 8 | ---Purpose: A framework to display tangency constraints between |
| 9 | -- two or more Interactive Objects of the datum type. |
| 10 | -- The datums are normally faces or edges. |
| 11 | uses Shape from TopoDS, |
| 12 | Presentation from Prs3d, |
| 13 | PresentationManager3d from PrsMgr, |
| 14 | Selection from SelectMgr, |
| 15 | Pnt from gp, |
| 16 | Dir from gp, |
| 17 | Projector from Prs3d, |
| 18 | Transformation from Geom, |
| 19 | PresentationManager2d from PrsMgr, |
| 20 | GraphicObject from Graphic2d, |
| 21 | Plane from Geom |
| 22 | |
| 23 | is |
| 24 | Create (aFShape : Shape from TopoDS; |
| 25 | aSShape : Shape from TopoDS; |
| 26 | aPlane : Plane from Geom; |
| 27 | anExternRef : Integer from Standard = 0) |
| 28 | ---Purpose: TwoFacesTangent or TwoEdgesTangent relation |
| 29 | returns mutable TangentRelation from AIS; |
| 30 | ---Purpose: Constructs an object to display tangency constraints. |
| 31 | -- This object is defined by the first shape aFShape, the |
| 32 | -- second shape aSShape, the plane aPlane and the index anExternRef. |
| 33 | -- aPlane serves as an optional axis. |
| 34 | -- anExternRef set to 0 indicates that there is no relation. |
| 35 | |
| 36 | ExternRef(me: mutable) returns Integer from Standard |
| 37 | is static; |
| 38 | ---Purpose: Returns the external reference for tangency. |
| 39 | -- The values are as follows: |
| 40 | -- - 0 - there is no connection; |
| 41 | -- - 1 - there is a connection to the first shape; |
| 42 | -- - 2 - there is a connection to the second shape. |
| 43 | -- This reference is defined at construction time. |
| 44 | |
| 45 | SetExternRef(me: mutable;aRef : Integer from Standard) |
| 46 | is static; |
| 47 | ---Purpose: Sets the external reference for tangency, aRef. |
| 48 | -- The values are as follows: |
| 49 | -- - 0 - there is no connection; |
| 50 | -- - 1 - there is a connection to the first shape; |
| 51 | -- - 2 - there is a connection to the second shape. |
| 52 | -- This reference is initially defined at construction time. |
| 53 | |
| 54 | Compute(me : mutable; |
| 55 | aPresentationManager: PresentationManager3d from PrsMgr; |
| 56 | aPresentation : mutable Presentation from Prs3d; |
| 57 | aMode : Integer from Standard= 0) |
| 58 | is redefined static private; |
| 59 | |
| 60 | Compute(me:mutable; |
| 61 | aProjector: Projector from Prs3d; |
| 62 | aPresentation: mutable Presentation from Prs3d) |
| 63 | is redefined static private; |
| 64 | |
| 65 | Compute(me:mutable; |
| 66 | aPresentationManager: PresentationManager2d from PrsMgr; |
| 67 | aPresentation: mutable GraphicObject from Graphic2d; |
| 68 | aMode: Integer from Standard = 0) |
| 69 | is redefined static private; |
| 70 | |
| 71 | Compute(me : mutable; |
| 72 | aProjector : Projector from Prs3d; |
| 73 | aTrsf : Transformation from Geom; |
| 74 | aPresentation : mutable Presentation from Prs3d) |
| 75 | is redefined; |
| 76 | ---Purpose: computes the presentation according to a point of view |
| 77 | -- given by <aProjector>. |
| 78 | -- To be Used when the associated degenerated Presentations |
| 79 | -- have been transformed by <aTrsf> which is not a Pure |
| 80 | -- Translation. The HLR Prs can't be deducted automatically |
| 81 | -- WARNING :<aTrsf> must be applied |
| 82 | -- to the object to display before computation !!! |
| 83 | |
| 84 | -- Methods from SelectableObject |
| 85 | |
| 86 | ComputeSelection(me : mutable; |
| 87 | aSelection : mutable Selection from SelectMgr; |
| 88 | aMode : Integer from Standard)is private; |
| 89 | |
| 90 | |
| 91 | -- |
| 92 | -- Computation private methods |
| 93 | -- |
| 94 | |
| 95 | ComputeTwoFacesTangent(me: mutable; |
| 96 | aPresentation : mutable Presentation from Prs3d) |
| 97 | is private; |
| 98 | |
| 99 | ComputeTwoEdgesTangent(me: mutable; |
| 100 | aPresentation : mutable Presentation from Prs3d) |
| 101 | is private; |
| 102 | |
| 103 | |
| 104 | fields |
| 105 | |
| 106 | myAttach : Pnt from gp; |
| 107 | myDir : Dir from gp; |
| 108 | myLength : Real from Standard; |
| 109 | myExternRef : Integer from Standard; ---purpose: (0 no attachment,1 attachment with first shape, 2 attachment with second shape) |
| 110 | |
| 111 | end TangentRelation; |
| 112 | |
projects / occt.git / blame