FreeCAD

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/***************************************************************************
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 *   Copyright (c) 2005 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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#include "PreCompiled.h"
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#include "Core/Curvature.h"
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#include "FeatureMeshCurvature.h"
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#include "MeshFeature.h"
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using namespace Mesh;
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PROPERTY_SOURCE(Mesh::Curvature, App::DocumentObject)
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Curvature::Curvature()
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{
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    ADD_PROPERTY(Source, (nullptr));
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    ADD_PROPERTY(CurvInfo, (CurvatureInfo()));
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}
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short Curvature::mustExecute() const
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{
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    if (Source.isTouched()) {
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        return 1;
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    }
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    if (Source.getValue() && Source.getValue()->isTouched()) {
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        return 1;
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    }
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    return 0;
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}
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App::DocumentObjectExecReturn* Curvature::execute()
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{
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    Mesh::Feature* pcFeat = dynamic_cast<Mesh::Feature*>(Source.getValue());
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    if (!pcFeat || pcFeat->isError()) {
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        return new App::DocumentObjectExecReturn("No mesh object attached.");
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    }
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    // get all points
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    const MeshCore::MeshKernel& rMesh = pcFeat->Mesh.getValue().getKernel();
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    MeshCore::MeshCurvature meshCurv(rMesh);
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    meshCurv.ComputePerVertex();
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    const std::vector<MeshCore::CurvatureInfo>& curv = meshCurv.GetCurvature();
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    std::vector<CurvatureInfo> values;
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    values.reserve(curv.size());
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    for (const auto& it : curv) {
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        CurvatureInfo ci;
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        ci.cMaxCurvDir = it.cMaxCurvDir;
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        ci.cMinCurvDir = it.cMinCurvDir;
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        ci.fMaxCurvature = it.fMaxCurvature;
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        ci.fMinCurvature = it.fMinCurvature;
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        values.push_back(ci);
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    }
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    CurvInfo.setValues(values);
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    return App::DocumentObject::StdReturn;
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}
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