-- Created on: 1996-12-05 -- Created by: Flore Lantheaume/Odile Olivier -- Copyright (c) 1996-1999 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. class FixRelation from AIS inherits Relation from AIS ---Purpose: Constructs and manages a constraint by a fixed -- relation between two or more interactive datums. This -- constraint is represented by a wire from a shape - -- point, vertex, or edge - in the first datum and a -- corresponding shape in the second. -- Warning: This relation is not bound with any kind of parametric -- constraint : it represents the "status" of an parametric -- object. uses PresentationManager3d from PrsMgr, Presentation from Prs3d, Selection from SelectMgr, Shape from TopoDS, Vertex from TopoDS, Edge from TopoDS, Wire from TopoDS, Curve from Geom, Circ from gp, Lin from gp, Pnt from gp, Projector from Prs3d, Transformation from Geom, Plane from Geom is Create (aShape : Shape from TopoDS; aPlane : Plane from Geom; aWire : Wire from TopoDS) ---Purpose: initializes the vertex aShape, the -- plane aPlane and the wire aWire, which connects -- the two vertices in a fixed relation. returns FixRelation from AIS; Create (aShape : Shape from TopoDS; aPlane : Plane from Geom; aWire : Wire from TopoDS; aPosition : Pnt from gp; anArrowSize : Real from Standard = 0.01) ---Purpose: initializes the vertex aShape, the -- plane aPlane and the wire aWire, the position -- aPosition, the arrow size anArrowSize and the -- wire aWire, which connects the two vertices in a fixed relation. returns FixRelation from AIS; Create (aShape : Shape from TopoDS; aPlane : Plane from Geom) ---Purpose: initializes the edge aShape and the plane aPlane. returns FixRelation from AIS; Create (aShape : Shape from TopoDS; aPlane : Plane from Geom; aPosition : Pnt from gp; anArrowSize : Real from Standard = 0.01) ---Purpose: initializes the edge aShape, the -- plane aPlane, the position aPosition and the arrow -- size anArrowSize. returns FixRelation from AIS; Wire(me: mutable) returns Wire from TopoDS is static; ---Purpose: Returns the wire which connects vertices in a fixed relation. SetWire(me: mutable;aWire : Wire from TopoDS) is static; --- Purpose: Constructs the wire aWire. This connects vertices -- which are in a fixed relation. IsMovable(me) returns Boolean from Standard ---C++: inline ---Purpose: Returns true if the Interactive Objects in the relation -- are movable. is redefined; -- Methods from PresentableObject Compute(me : mutable; aPresentationManager: PresentationManager3d from PrsMgr; aPresentation : Presentation from Prs3d; aMode : Integer from Standard= 0) is redefined static private; Compute(me:mutable; aProjector: Projector from Prs3d; aPresentation: Presentation from Prs3d) is redefined static private; Compute(me : mutable; aProjector : Projector from Prs3d; aTrsf : Transformation from Geom; aPresentation : Presentation from Prs3d) is redefined; ---Purpose: computes the presentation according to a point of view -- given by . -- To be Used when the associated degenerated Presentations -- have been transformed by which is not a Pure -- Translation. The HLR Prs can't be deducted automatically -- WARNING : must be applied -- to the object to display before computation !!! -- Methods from SelectableObject ComputeSelection(me : mutable; aSelection : Selection from SelectMgr; aMode : Integer from Standard) is redefined private; -- -- Computation private methods -- ComputeVertex(me : mutable; FixVertex : Vertex from TopoDS; curpos : out Pnt from gp) ---Purpose: computes the presentation for if it's a -- vertex. is private; ComputePosition(me; curv1 : Curve from Geom; curv2 : Curve from Geom; firstp1 : Pnt from gp; lastp1 : Pnt from gp ; firstp2 : Pnt from gp; lastp2 : Pnt from gp) returns Pnt from gp is private; ComputePosition(me; curv : Curve from Geom; firstp : Pnt from gp; lastp : Pnt from gp) returns Pnt from gp is private; ComputeEdge(me : mutable; FixEdge : Edge from TopoDS; curpos : out Pnt from gp) ---Purpose: computes the presentation for if it's a -- edge. is private; ComputeLinePosition(me : mutable; glin : Lin from gp; pos : out Pnt from gp; pfirst : out Real from Standard; plast : out Real from Standard) is private; ComputeCirclePosition(me : mutable; gcirc : Circ from gp; pos : out Pnt from gp; pfirst : out Real from Standard; plast : out Real from Standard) is private; ConnectedEdges(myclass; aWire : Wire from TopoDS; aVertex : Vertex from TopoDS; Edge1,Edge2 : out Edge from TopoDS) returns Boolean from Standard is private; fields myWire : Wire from TopoDS; myPntAttach : Pnt from gp; end FixRelation;