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-- File: PTopoDS.cdl
-- Created: Mon Mar 8 19:32:02 1993
-- Author: Remi LEQUETTE
-- <rle@phobox>
-- Update: Frederic Maupas
-- <fma@pronox>
---Copyright: Matra Datavision 1993
package PTopoDS
---Purpose: The package PTopoDS provides persistent classes to
-- store Topological Data Structures in Data Base.
--
-- The structure of this persistent topology is
-- similar to the transient topology (see its
-- documentation for more comprehension of this one).
-- But some differences occure:
--
-- * The class Model and derivatives disappear;
--
-- * The "free" information disappears, because a
-- TShape stored in the Data Base is always "frozen";
--
-- * The class HShape inherits from ExternShareable from
-- ObjMgt, so that an intance of HShape may be
-- shared by a TShape even if the HShape is not in the
-- same Container.
--
-- * The class Shape1 inherits from Storable from
-- Standard.
--
-- Note that the use of this topology is managed by
-- the package MgtTopoDS.
--
-- About the question of "Location", see the package
-- PTopLoc itself; about naming, referencing and
-- using persistent Shapes outsing the topological
-- world, see the package TopoDB.
uses
ObjMgt,
Standard,
TopAbs, -- basic enumerations : ShapeEnum, Orientation
PTopLoc, -- Persistent local coordinate systems
PCollection,
TCollection
is
---Category: Old version of Shape/TShape.
-- ============================
class HShape;
---Purpose: A reference (even outside the same container) to a
-- Topological shape with Location, Orientation.
deferred class TShape;
-- inherits ExternShareable from ObjMgt
---Purpose: A topological shape is a structure made from other
-- shapes. This is a deferred class used to support
-- topological objects.
deferred class TVertex;
---Purpose: A TVertex is a topological point in two or three
-- dimensions.
class Vertex;
---Purpose: A Vertex is a TVertex with a Location and an
-- Orientation.
-- It inherits HShape
deferred class TEdge;
---Purpose: A topological part of a curve in 2D or 3D, the
-- boundary is a set of oriented Vertices.
class Edge;
---Purpose: A Edge is a TEdge with a Location and an
-- Orientation.
-- It inherits HShape
class TWire;
---Purpose: A set of Edges making a wire structure, it can be
-- a wireframe or a composite line.
class Wire;
---Purpose: A Wire is a TWire with a Location and an
-- Orientation.
-- It inherits HShape
class TFace;
---Purpose: A topological part of a surface or of the 2D
-- space. The boundary is a set of wires and edges.
class Face;
---Purpose: A Face is a TFace with a Location and an
-- Orientation.
-- It inherits HShape
class TShell;
---Purpose: A set of Faces or Shells, a topological surface or
-- any faces structure.
class Shell;
---Purpose: A Shell is a TShell with a Location and an
-- Orientation.
-- It inherits HShape
class TSolid;
---Purpose: A Topological part of 3D space, bounded by Shells
-- and Faces.
class Solid;
---Purpose: A Solid is a TSolid with a Location and an
-- Orientation.
-- It inherits HShape
class TCompSolid;
---Purpose: A structure of Solids sharing Faces.
class CompSolid;
---Purpose: A CompSolid is a TCompSolid with a Location and an
-- Orientation.
-- It inherits HShape
class TCompound;
---Purpose: A TCompound is an all-purpose set of Shapes.
class Compound;
---Purpose: A Compound is a TCompound with a Location and an
-- Orientation.
-- It inherits HShape
class HArray1OfHShape instantiates HArray1 from PCollection
(HShape from PTopoDS);
---Category: New version of Shape/TShape.
-- ============================
class Shape1;
---Purpose: A reference to a Topological TShape with Location,
-- Orientation.
deferred class TShape1;
-- inherits ExternShareable from ObjMgt
---Purpose: A topological shape is a structure made from other
-- shapes. This is a deferred class used to support
-- topological objects.
deferred class TVertex1;
---Purpose: A TVertex is a topological point in two or three
-- dimensions.
deferred class TEdge1;
---Purpose: A topological part of a curve in 2D or 3D, the
-- boundary is a set of oriented Vertices.
class TWire1;
---Purpose: A set of Edges making a wire structure, it can be
-- a wireframe or a composite line.
class TFace1;
---Purpose: A topological part of a surface or of the 2D
-- space. The boundary is a set of wires and edges.
class TShell1;
---Purpose: A set of Faces or Shells, a topological surface or
-- any faces structure.
class TSolid1;
---Purpose: A Topological part of 3D space, bounded by Shells
-- and Faces.
class TCompSolid1;
---Purpose: A structure of Solids sharing Faces.
class TCompound1;
---Purpose: A TCompound is an all-purpose set of Shapes.
class HArray1OfShape1 instantiates HArray1 from PCollection
(Shape1 from PTopoDS);
end PTopoDS;
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