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-- File: ChFi2d_Builder.cdl
-- Created: Mon Jun 12 13:53:51 1995
-- Author: Philippe DERVIEUX
-- <phd@tlefon>
---Copyright: Matra Datavision 1995
-- Modified: Tue Oct 22 09:23:11 1996
-- Author: Joelle CHAUVET
-- <jct@sgi38>
-- add new method BuildNewEdge with special flag IsDegenerated (PRO4896)
class Builder from ChFi2d
---Purpose: This class contains the algorithm used to build
-- fillet on planar wire.
uses
Face from TopoDS,
Edge from TopoDS,
Vertex from TopoDS,
ConstructionError from ChFi2d,
SequenceOfShape from TopTools,
DataMapOfShapeShape from TopTools,
Pln from gp,
Real from Standard,
Boolean from Standard
is
Create ;
Create ( F : Face );
---Purpose: The face <F> can be build on a closed or an open
-- wire.
Init( me : in out; F : Face );
Init( me : in out; RefFace, ModFace : Face );
AddFillet ( me : in out; V : Vertex; Radius : Real ) returns Edge;
---Purpose: Add a fillet of radius <Radius> on the wire
-- between the two edges connected to the vertex <V>.
-- <AddFillet> returns the fillet edge. The returned
-- edge has sense only if the status <status> is
-- <IsDone>
ModifyFillet ( me : in out; Fillet : Edge; Radius : Real)
returns Edge;
---Purpose: modify the fillet radius and return the new fillet
-- edge. this edge has sense only if the status
-- <status> is <IsDone>.
RemoveFillet( me : in out; Fillet : Edge)
returns Vertex;
---Purpose: removes the fillet <Fillet> and returns the vertex
-- connecting the two adjacent edges to this fillet.
AddChamfer ( me : in out; E1, E2 : Edge; D1, D2 : Real )
returns Edge;
---Purpose: Add a chamfer on the wire between the two edges
-- connected <E1> and <E2>. <AddChamfer> returns the
-- chamfer edge. This edge has sense only if the
-- status <status> is <IsDone>.
AddChamfer ( me : in out; E : Edge; V : Vertex; D, Ang : Real )
returns Edge;
---Purpose: Add a chamfer on the wire between the two edges
-- connected to the vertex <V>. The chamfer will make
-- an angle <Ang> with the edge <E>, and one of its
-- extremities will be on <E> at distance <D>. The
-- returned edge has sense only if the status
-- <status> is <IsDone>.
-- Warning: The value of <Ang> must be expressed in Radian.
ModifyChamfer ( me : in out; Chamfer : Edge;
E1 : Edge; E2 : Edge; D1, D2 : Real)
returns Edge;
---Purpose: modify the chamfer <Chamfer> and returns the new
-- chamfer edge.
-- This edge as sense only if the status <status> is
-- <IsDone>.
ModifyChamfer ( me : in out; Chamfer, E : Edge; D, Ang : Real)
returns Edge;
---Purpose: modify the chamfer <Chamfer> and returns the new
-- chamfer edge. This edge as sense only if the
-- status <status> is <IsDone>.
-- Warning: The value of <Ang> must be expressed in Radian.
RemoveChamfer( me : in out; Chamfer : Edge)
returns Vertex;
---Purpose: removes the chamfer <Chamfer> and returns the
-- vertex connecting the two adjacent edges to this
-- chamfer.
Result( me ) returns Face;
---Purpose: returns the modified face
---C++: inline
IsModified( me; E : Edge ) returns Boolean;
---C++: inline
FilletEdges( me ) returns SequenceOfShape;
---Purpose: returns the list of new edges
---C++: return const &
---C++: inline
NbFillet( me ) returns Integer;
---C++: inline
ChamferEdges( me ) returns SequenceOfShape;
---Purpose: returns the list of new edges
---C++: return const &
---C++: inline
NbChamfer( me ) returns Integer;
---C++: inline
HasDescendant( me; E : Edge) returns Boolean;
---C++: inline
DescendantEdge( me; E : Edge) returns Edge;
---Purpose: returns the modified edge if <E> has descendant or
-- <E> in the other case.
---C++: return const &
---C++: inline
BasisEdge( me; E : Edge) returns Edge;
---Purpose: Returns the parent edge of <E>
-- Warning: If <E>is a basis edge, the returned edge would be
-- equal to <E>
---C++: return const &
Status(me) returns ConstructionError from ChFi2d;
---C++: inline
ComputeFillet ( me : in out; V : Vertex; E1, E2 : Edge; Radius : Real;
TrimE1, TrimE2, Fillet : out Edge)
is private;
---Purpose: Is internaly used by <AddFillet>.
-- Warning: <TrimE1>, <TrimE2>, <Fillet> has sense only if the
-- status <status> is equal to <IsDone>
ComputeChamfer ( me : in out; V : Vertex; E1, E2 : Edge;
D1, D2 : Real;
TrimE1, TrimE2, Chamfer : out Edge)
is private;
---Purpose: Is internaly used by <AddChamfer>. The chamfer is
-- computed from a vertex, two edges and two
-- distances
-- Warning: <TrimE1>, <TrimE2> and <Chamfer> has sense only if
-- if the status <status> is equal to <IsDone>
ComputeChamfer ( me : in out; V : Vertex; E1 : Edge; D, Ang : Real;
E2 : Edge; TrimE1, TrimE2, Chamfer : out Edge)
is private;
---Purpose: Is internaly used by <AddChamfer>. The chamfer is
-- computed from an edge, a vertex, a distance
-- and an angle
-- Warning: <TrimE1>, <TrimE2>, and <Chamfer> has
-- sense only if the status <status> is equal to
-- <IsDone>
BuildFilletEdge(me : in out; V : Vertex; AdjEdge1, AdjEdge2 : Edge;
Radius : Real;
NewExtr1, NewExtr2 : out Vertex)
returns Edge
is private;
---Purpose: Is internaly used by <ComputeFillet>.
-- <NewExtr1> and <NewExtr2> will contains the new
-- extremities of <AdjEdge1> and <AdjEdge2>
-- Warning: The returned edge has sense only if the status
-- <status> is equal to <IsDone>
-- or to one of those specific cases :
-- <FirstEdgeDegenerated>
-- <LastEdgeDegenerated>
-- <BothEdgesDegenerated>
BuildChamferEdge(me : in out; V : Vertex; AdjEdge1, AdjEdge2 : Edge;
D1, D2 : Real;
NewExtr1, NewExtr2 : out Vertex)
returns Edge
is private;
---Purpose: Is internaly used by <ComputeFillet>.
-- <NewExtr1> and <NewExtr2> will contains the new
-- extremities of <AdjEdge1> and <AdjEdge2>
-- Warning: The returned edge has sense only if the status
-- <status> is equal to <IsDone>
BuildChamferEdge(me : in out; V : Vertex; AdjEdge2 : Edge;
D, Ang : Real;
AdjEdge1 : Edge; NewExtr1, NewExtr2 : out Vertex)
returns Edge
is private;
---Purpose: Is internaly used by <ComputeFillet>.
-- <NewExtr1> and <NewExtr2> will contains the new
-- extremities of <AdjEdge1> and <AdjEdge2>
-- Warning: The returned edge has sense only if the status
-- <status> is equal to <IsDone>
BuildNewWire ( me : in out; OldE1, OldE2, E1, Fillet, E2 : Edge)
is private;
---Purpose: replaces in the new face <newFace> <OldE1> and
-- <OldE2> by <E1>, <Fillet> and <E2>
-- or by <Fillet> and <E2> if <E1> is degenerated
-- or by <E1> and <Fillet> if <E2> is degenerated
-- or by <Fillet> if <E1> and <E2> are degenerated .
BuildNewEdge ( me ; E1 : Edge; OldExtr, NewExtr : Vertex)
returns Edge
is private;
---Purpose: Changes <OldExtr> of <E1> by <NewExtr>
BuildNewEdge ( me ; E1 : Edge; OldExtr, NewExtr : Vertex;
IsDegenerated : out Boolean)
returns Edge
is private;
---Purpose: Changes <OldExtr> of <E1> by <NewExtr>
-- returns E1 and IsDegenerated = Standard_True
-- if the new edge is degenerated
UpDateHistory( me : in out; E1, E2, TrimE1, TrimE2, NewEdge : Edge;
Id : Integer)
is private;
---Purpose: Writes <NewEdge> in <fillets> if <Id> is equal to
-- 1, or in <chamfers> if <Id> is Equal to 2.
-- Writes the modifications in <history> :
-- <TrimE1> is given by <E1>, <TrimE2> by <E2>
-- if <TrimE1> and <TrimE2> are not degenerated.
UpDateHistory( me : in out; E1, E2, TrimE1, TrimE2 : Edge)
is private;
---Purpose: Writes the modifications in <history> . <TrimE1>
-- is given by <E1>, <TrimE2> by <E2>.
IsAFillet( me; E : Edge) returns Boolean is private;
IsAChamfer( me; E : Edge) returns Boolean is private;
fields
status : ConstructionError from ChFi2d;
refFace : Face from TopoDS;
newFace : Face from TopoDS;
fillets : SequenceOfShape from TopTools;
chamfers : SequenceOfShape from TopTools;
history : DataMapOfShapeShape from TopTools;
end Builder;
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