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The copying permission statements at the beginning of source files updated to refer to LGPL. Copyright dates extended till 2014 in advance.
170 lines
6.4 KiB
Plaintext
170 lines
6.4 KiB
Plaintext
-- Created on: 1997-10-13
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-- Created by: Roman BORISOV
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-- Copyright (c) 1997-1999 Matra Datavision
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-- Copyright (c) 1999-2014 OPEN CASCADE SAS
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--
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-- This file is part of Open CASCADE Technology software library.
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--
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-- This library is free software; you can redistribute it and / or modify it
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-- under the terms of the GNU Lesser General Public version 2.1 as published
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-- by the Free Software Foundation, with special exception defined in the file
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-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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-- distribution for complete text of the license and disclaimer of any warranty.
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--
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-- Alternatively, this file may be used under the terms of Open CASCADE
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-- commercial license or contractual agreement.
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class NormalProjection from BRepOffsetAPI inherits MakeShape from BRepBuilderAPI
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---Purpose: A framework to define projection onto a shape
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-- according to the normal from each point to be projected.
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-- The target shape is a face, and the source shape is an edge or a wire.
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-- The target face is considered to be a 2D surface.
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uses Shape from TopoDS,
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Edge from TopoDS,
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Shape from GeomAbs,
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NormalProjection from BRepAlgo,
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ListOfShape from TopTools
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raises ConstructionError from Standard,
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NoSuchObject from Standard,
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NotDone from StdFail
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is
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Create
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---Purpose: Constructs an empty framework to define projection on
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-- a shape according to the normal from each point to be
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-- projected to the shape.
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returns NormalProjection;
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Create(S: Shape from TopoDS)
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returns NormalProjection;
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---Purpose: Constructs a framework to define projection onto the
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-- basis shape S according to the normal from each point
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-- to be projected from the shape added to this framework by Add.
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-- Default parameters of the algorithm: Tol3D = 1.e-04, Tol2D =sqr(tol3d)
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-- , InternalContinuity = GeomAbs_C2, MaxDegree = 14, MaxSeg = 16.
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Init(me: in out; S: Shape from TopoDS)
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---Purpose: Initializes the empty constructor framework with the shape S.
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is static;
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Add(me: in out; ToProj: Shape from TopoDS)
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---Purpose: Adds the shape ToProj to the framework for calculation
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-- of the projection by Compute3d.
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-- ToProj is an edge or a wire and will be projected onto the basis shape.
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-- Exceptions
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-- Standard_ConstructionError if ToProj is not added.
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raises ConstructionError from Standard
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is static;
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SetParams(me : in out; Tol3D, Tol2D : Real from Standard;
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InternalContinuity : Shape from GeomAbs;
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MaxDegree , MaxSeg : Integer from Standard)
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---Purpose: Sets the parameters used for computation
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-- Tol3 is the requiered tolerance between the 3d projected
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-- curve and its 2d representation
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-- InternalContinuity is the order of constraints
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-- used for approximation
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-- MaxDeg and MaxSeg are the maximum degree and the maximum
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-- number of segment for BSpline resulting of an approximation.
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is static;
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SetMaxDistance(me: in out; MaxDist: Real from Standard)
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---Purpose: Sets the maximum distance between target shape and
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-- shape to project. If this condition is not satisfied then corresponding
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-- part of solution is discarded.
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-- if MaxDist < 0 then this method does not affect the algorithm
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is static;
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SetLimit(me : in out; FaceBoundaries: Boolean from Standard = Standard_True)
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---Purpose: Manage limitation of projected edges.
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--By default edges are limited by face boundaries,
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--else they are limited by supporting surface boundaries.
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is static;
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Compute3d(me: in out; With3d: Boolean from Standard = Standard_True)
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---Purpose: Returns true if a 3D curve is computed. If not, false is
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-- returned and an initial 3D curve is kept to build the resulting edges.
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is static;
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Build(me: in out)
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is redefined;
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---Purpose: Builds the result of the projection as a compound of
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-- wires. Tries to build oriented wires.
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IsDone(me)
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---Purpose:
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returns Boolean from Standard
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is redefined static;
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---Purpose: Returns true if the object was correctly built by the shape
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-- construction algorithm.
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-- If at the construction time of the shape, the algorithm
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-- cannot be completed, or the original data is corrupted,
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-- IsDone returns false and therefore protects the use of
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-- functions to access the result of the construction
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-- (typically the Shape function).
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Projection(me)
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---Purpose: Performs the projection.
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-- The construction of the result is performed by Build.
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-- Exceptions
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-- StdFail_NotDone if the projection was not performed.
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returns Shape from TopoDS
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---C++: return const&
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raises NotDone from StdFail
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is static;
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Couple(me; E: Edge from TopoDS)
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---Purpose: Returns the initial face corresponding to the projected edge E.
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-- Exceptions
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-- StdFail_NotDone if no face was found.
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-- Standard_NoSuchObject if if a face corresponding to
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-- E has already been found.
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returns Shape from TopoDS
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---C++: return const&
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raises NotDone from StdFail,
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NoSuchObject from Standard
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is static;
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Generated (me: in out; S : Shape from TopoDS)
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---Purpose: Returns the list of shapes generated from the
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-- shape <S>.
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---C++: return const &
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---Level: Public
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returns ListOfShape from TopTools
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is redefined;
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Ancestor(me; E: Edge from TopoDS)
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---Purpose: Returns the initial edge corresponding to the edge E
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-- resulting from the computation of the projection.
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-- Exceptions
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-- StdFail_NotDone if no edge was found.
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-- Standard_NoSuchObject if an edge corresponding to
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-- E has already been found.
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returns Shape from TopoDS
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---C++: return const&
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raises NotDone from StdFail,
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NoSuchObject from Standard
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is static;
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BuildWire(me; Liste : out ListOfShape from TopTools)
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returns Boolean from Standard
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is static;
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--- Purpose : build the result as a list of wire if possible in --
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-- a first returns a wire only if there is only a wire.
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fields
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myNormalProjector : NormalProjection from BRepAlgo;
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end NormalProjection;
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