75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
/***************************************************************************
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* Copyright (c) 2015 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#ifndef FEM_TOOLS_H
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#define FEM_TOOLS_H
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#include <Base/Vector3D.h>
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#include <gp_XYZ.hxx>
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class TopoDS_Shape;
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class TopoDS_Edge;
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class TopoDS_Face;
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namespace Fem
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{
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class AppFemExport Tools
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{
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public:
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/*!
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Get the direction of the shape. If the shape is a planar face
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then get its normal direction. If it's 'linear' then get its
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direction vector.
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@see isLinear
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@see isPlanar
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*/
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static Base::Vector3d getDirectionFromShape(const TopoDS_Shape&);
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/*!
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Checks whether the curve of the edge is 'linear' which is the case
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for a line or a spline or Bezier curve with collinear control points.
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*/
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static bool isLinear(const TopoDS_Edge&);
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/*!
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Checks whether the surface of the face is planar.
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*/
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static bool isPlanar(const TopoDS_Face&);
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/*!
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It is assumed that the edge is 'linear'.
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The direction vector of the line is returned.
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@see isLinear
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*/
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static gp_XYZ getDirection(const TopoDS_Edge&);
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/*!
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It is assumed that the face is 'planar'.
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The normal vector of the plane is returned.
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@see isPlanar
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*/
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static gp_XYZ getDirection(const TopoDS_Face&);
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};
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} //namespace Fem
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#endif // FEM_TOOLS_H
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