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-- File: AIS_FixRelation.cdl
-- Created: Thu Dec 5 10:08:10 1996
-- Author: Flore Lantheaume/Odile Olivier
-- <odl@sacadox.paris1.matra-dtv.fr>
---Copyright: Matra Datavision 1996
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,
PresentationManager2d from PrsMgr,
GraphicObject from Graphic2d,
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 mutable 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 mutable FixRelation from AIS;
Create (aShape : Shape from TopoDS;
aPlane : Plane from Geom)
---Purpose: initializes the edge aShape and the plane aPlane.
returns mutable 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 mutable 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 : mutable Presentation from Prs3d;
aMode : Integer from Standard= 0)
is redefined static private;
Compute(me:mutable;
aProjector: Projector from Prs3d;
aPresentation: mutable Presentation from Prs3d)
is redefined static private;
Compute(me:mutable;
aPresentationManager: PresentationManager2d from PrsMgr;
aPresentation: mutable GraphicObject from Graphic2d;
aMode: Integer from Standard = 0)
is redefined static private;
Compute(me : mutable;
aProjector : Projector from Prs3d;
aTrsf : Transformation from Geom;
aPresentation : mutable Presentation from Prs3d)
is redefined;
---Purpose: computes the presentation according to a point of view
-- given by <aProjector>.
-- To be Used when the associated degenerated Presentations
-- have been transformed by <aTrsf> which is not a Pure
-- Translation. The HLR Prs can't be deducted automatically
-- WARNING :<aTrsf> must be applied
-- to the object to display before computation !!!
-- Methods from SelectableObject
ComputeSelection(me : mutable;
aSelection : mutable 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 <myFixShape> 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 <myFixShape> 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;
haspos : Boolean from Standard;
end FixRelation;
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