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-- File: ShapeFix.cdl
-- Created: Wed Jun 3 12:07:35 1998
-- Author: data exchange team
-- <det@nnov.matra-dtv.fr>
---Copyright: Matra Datavision 1998
package ShapeFix
---Purpose: This package provides algorithms for fixing
-- problematic (violating Open CASCADE requirements) shapes.
-- Tools from package ShapeAnalysis are used for detecting the problems. The
-- detecting and fixing is done taking in account various
-- criteria implemented in BRepCheck package.
-- Each class of package ShapeFix deals with one
-- certain type of shapes or with some family of problems.
uses
gp,
Geom,
Geom2d,
Geom2dAPI,
GeomAbs,
Adaptor3d,
TCollection,
TColStd,
TopAbs,
TopLoc,
TopoDS,
TopTools,
Message,
ShapeExtend,
ShapeAnalysis,
ShapeConstruct,
ShapeBuild,
Bnd
is
-- classes
class Root;
class EdgeProjAux;
class Edge;
---Purpose: Fixing different problems on edge
class Wire;
---Purpose: Fixing different problems with wires
class Face;
---Purpose: Fixing problems with face (orientation of wires and wrong wires)
class FixSmallFace;
---Purpose: Fixing face with small size
class WireVertex;
---Purpose: Fixing disconnected edges in the wire
class Wireframe;
---Purpose: Provides methods to fix wireframe of shape
class FreeBounds;
---Purpose: Fixing free bounds of the shape (connecting open wires)
class FaceConnect;
---Purpose: Rebuilds connectivity between faces in shell
class Shell;
---Purpose: Fixing orientation of faces in shell
class Solid;
---Purpose: Creating solid from shell and orienting it to have finite volume
class ShapeTolerance;
---Purpose: Modifying shape tolerances
class Shape;
---Purpose: Fixing problem of shape.
class EdgeConnect;
---Purpose: Rebuilds edges to connect with new vertices, was moved from ShapeBuild
class ComposeShell;
---Purpose: Splits a (pseudo)face onto grid of faces (shell)
class SplitCommonVertex;
---Purpose: Splits vertex which is common for two wires
-- (for writing into STEP)
class WireSegment;
---Purpose: Auxiliary class (data storage) for ComposeShell
class IntersectionTool;
---Purpose: Tool for fixing selfintersecting wire
-- and intersecting wires
--class OverlappingTool; now it is in package OverlapShape of Products
---Purpose: Tool for fixing overlapping
class SplitTool;
---Purpose: Tool for splitting and cutting edges; incudes methods
-- used in OverlappingTool and IntersectionTool
class SequenceOfWireSegment instantiates Sequence from TCollection
(WireSegment from ShapeFix);
class DataMapOfShapeBox2d instantiates DataMap from TCollection
(Shape from TopoDS, Box2d from Bnd, ShapeMapHasher from TopTools);
SameParameter (shape : Shape from TopoDS;
enforce: Boolean;
preci : Real = 0.0)
returns Boolean;
---Purpose : Runs SameParameter from BRepLib with these adaptations :
-- <enforce> forces computations, else they are made only on
-- Edges with flag SameParameter false
-- <preci>, if not precised, is taken for each EDge as its own
-- Tolerance
-- Returns True when done, False if an exception has been raised
-- In case of exception anyway, as many edges as possible have
-- been processed
EncodeRegularity (shape: Shape from TopoDS; tolang: Real = 1.0e-10);
---Purpose : Runs EncodeRegularity from BRepLib taking into account
-- shared components of assemblies, so that each component
-- is processed only once
RemoveSmallEdges (shape: in out Shape from TopoDS; Tolerance: Real; context: in out ReShape from ShapeBuild)
returns Shape from TopoDS;
---Purpose: Removes edges which are less than given tolerance from shape
-- with help of ShapeFix_Wire::FixSmall()
FixVertexPosition(theshape: in out Shape from TopoDS;
theTolerance: Real;
thecontext: ReShape from ShapeBuild) returns Boolean;
---Purpose: Fix position of the vertices having tolerance more tnan specified one.;
LeastEdgeSize(theshape: in out Shape from TopoDS) returns Real;
---Purpose: Calculate size of least edge;
end ShapeFix;
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