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b71cb85f67
Add new option to convert input contours into ones consisting of 2D circular arcs and 2D linear segments only. Update documentation
96 lines
4.2 KiB
C++
96 lines
4.2 KiB
C++
// Created on: 1997-01-17
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// Created by: Didier PIFFAULT
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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 under
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// the terms of the GNU Lesser General Public License 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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#ifndef _BRepAlgo_HeaderFile
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#define _BRepAlgo_HeaderFile
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#include <GeomAbs_Shape.hxx>
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#include <TopTools_ListOfShape.hxx>
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class TopoDS_Wire;
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class TopoDS_Edge;
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class TopoDS_Face;
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class TopoDS_Shape;
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//! The BRepAlgo class provides the following tools for:
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//! - Checking validity of the shape;
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//! - Concatenation of the edges of the wire.
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class BRepAlgo
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{
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public:
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//! this method makes a wire whose edges are C1 from
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//! a Wire whose edges could be G1. It removes a vertex
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//! between G1 edges.
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//! Option can be G1 or C1.
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Standard_EXPORT static TopoDS_Wire ConcatenateWire (const TopoDS_Wire& Wire,
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const GeomAbs_Shape Option,
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const Standard_Real AngularTolerance = 1.0e-4);
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//! this method makes an edge from a wire.
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//! Junction points between edges of wire may be sharp,
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//! resulting curve of the resulting edge may be C0.
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Standard_EXPORT static TopoDS_Edge ConcatenateWireC0 (const TopoDS_Wire& Wire);
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//! Method of wire conversion, calls BRepAlgo_Approx internally.
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//! @param theWire
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//! Input Wire object.
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//! @param theAngleTolerance
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//! Angle (in radians) defining the continuity of the wire: if two vectors
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//! differ by less than this angle, the result will be smooth (zero angle of
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//! tangent lines between curve elements).
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//! @return
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//! The new TopoDS_Wire object consisting of edges each representing an arc
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//! of circle or a linear segment. The accuracy of conversion is defined
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//! as the maximal tolerance of edges in theWire.
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static Standard_EXPORT TopoDS_Wire ConvertWire
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(const TopoDS_Wire& theWire,
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const Standard_Real theAngleTolerance,
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const TopoDS_Face& theFace);
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//! Method of face conversion. The API corresponds to the method ConvertWire.
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//! This is a shortcut for calling ConvertWire() for each wire in theFace.
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static Standard_EXPORT TopoDS_Face ConvertFace
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(const TopoDS_Face& theFace,
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const Standard_Real theAngleTolerance);
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//! Checks if the shape is "correct". If not, returns
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//! <Standard_False>, else returns <Standard_True>.
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Standard_EXPORT static Standard_Boolean IsValid (const TopoDS_Shape& S);
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//! Checks if the Generated and Modified Faces from
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//! the shapes <arguments> in the shape <result> are
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//! "correct". The args may be empty, then all faces
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//! will be checked.
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//! If <Closed> is True, only closed shape are valid.
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//! If <GeomCtrl> is False the geometry of new
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//! vertices and edges are not verified and the
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//! auto-intersection of new wires are not searched.
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Standard_EXPORT static Standard_Boolean IsValid (const TopTools_ListOfShape& theArgs,
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const TopoDS_Shape& theResult,
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const Standard_Boolean closedSolid = Standard_False,
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const Standard_Boolean GeomCtrl = Standard_True);
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//! Checks if the shape is "correct".
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//! If not, returns FALSE, else returns TRUE.
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//! This method differs from the previous one in the fact that no geometric controls
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//! (intersection of wires, pcurve validity) are performed.
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Standard_EXPORT static Standard_Boolean IsTopologicallyValid (const TopoDS_Shape& S);
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};
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#endif // _BRepAlgo_HeaderFile
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