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-- File: BooleanOperations.cdl
-- Created: Mon Jul 10 10:19:21 2000
-- Author: Vincent DELOS
-- <vds@bulox.paris1.matra-dtv.fr>
---Copyright: Matra Datavision 2000
package BooleanOperations
---Purpose: package to perform Boolean Operations between two
-- solids called Object and Tool.
uses
gp,
Bnd,
math,
BRep,
Geom,
TopAbs,
TopExp,
TopoDS,
TColStd,
TopTools,
Standard,
TCollection,
BRepAdaptor,
GeomAdaptor,
IntTools,
BOPTColStd
is
class AncestorsAndSuccessors;
---Purpose: to have a fast access in the class ShapesDataStructure
-- to the upper and lower shapes of a given shape.
-- e.g. : ancestors of an edge are the wires that contain
-- it and its successors are the vertices that it holds.
--modified by NIZNHY-PKV Wed Feb 2 14:47:51 2005f
-- class InterferenceResult;
--Purpose: to describe a single interference between two shapes
-- in the class ShapesDataStructure.
-- pointer PInterferenceResult to InterferenceResult from BooleanOperations;
-- class InterferencesList;
--Purpose: if the considered shape S belongs to the Object this
-- class will list all the shapes of the Tool whose
-- bounding boxes intersects with the bounding box of S;
-- if S belongs to the Tool we store all the shapes of
-- the Object whose intersection with S is not empty.
--modified by NIZNHY-PKV Wed Feb 2 14:48:00 2005t
class ShapeAndInterferences;
---Purpose: contains a shape S, its bounding box, its state
-- according to the other solid, its ancestors and
-- successors, all of its interferences with the other
-- solid.
pointer PShapeAndInterferences to ShapeAndInterferences from BooleanOperations;
class ShapesDataStructure;
---Purpose: contains all the shapes of the Object and Tool, all
-- the shapes created by intersection, their bounding
-- boxes, their states, their ancestors and successors,
-- and all of their interferences.
pointer PShapesDataStructure to ShapesDataStructure from BooleanOperations;
class Explorer;
---Purpose: to find subshapes of a given shape of the Data Structure.
class OnceExplorer;
---Purpose: the derived class of Explorer to find subshapes only once.
--class BooleanOperations;
---Purpose: is to be deferred with inherited classes Cut, Common,
-- Fuse to perform boolean operations .
enumeration StateOfShape is
---Purpose: State of a Shape of the 1st solid according to the
-- 2nd one. State INOROUT is used when we know that
-- a shape is totally IN or totally OUT. State
-- INTERSECTED refers to a shape of the 1st solid cut
-- by the 2nd solid. When a shape has a state
-- different of INTERSECTED or UNKNOWN all of its
-- subshapes have the same state.
IN,
OUT,
ON,
UNKNOWN,
INOROUT,
INTERSECTED
end StateOfShape;
enumeration KindOfInterference is
---Purpose: Interferences describe an intersection between two
-- shapes. They are classified following a hierarchy
-- from the lower until the upper.
SurfaceSurface,
EdgeSurface,
VertexSurface,
EdgeEdge,
VertexEdge,
VertexVertex,
UnknownInterference
end StateOfShape;
enumeration KindOfIntersection is
---Purpose: Describes the fact that we can have no
-- intersection between two shapes, or a true or a
-- tangent one.
NoIntersection,
TrueIntersection,
SameDomain
end KindOfIntersection;
------------------------
-- For internal needs --
------------------------
class AncestorsSeqAndSuccessorsSeq;
class IndexedDataMapOfShapeAncestorsSuccessors instantiates IndexedDataMap from TCollection
(Shape from TopoDS,AncestorsSeqAndSuccessorsSeq from BooleanOperations,ShapeMapHasher from TopTools);
class IndexedDataMapOfShapeInteger instantiates
IndexedDataMap from TCollection(Shape from TopoDS,
Integer from Standard,
ShapeMapHasher from TopTools);
end BooleanOperations;
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