Revision f89d17468c01386b0105cd72a1216c1faf02db57 authored by Dmitry Yu. Naumov on 22 January 2021, 20:39:39 UTC, committed by Dmitry Yu. Naumov on 22 January 2021, 20:39:39 UTC
upload new strength reduction pdf file See merge request ogs/ogs!3413
FaceRule.cpp
/**
* \file
* \copyright
* Copyright (c) 2012-2021, OpenGeoSys Community (http://www.opengeosys.org)
* Distributed under a Modified BSD License.
* See accompanying file LICENSE.txt or
* http://www.opengeosys.org/project/license
*
*/
#include "FaceRule.h"
#include "MathLib/MathTools.h"
#include "MeshLib/Node.h"
#include "Element.h"
namespace MeshLib
{
bool FaceRule::testElementNodeOrder(const Element* e)
{
return getSurfaceNormal(e)[2] < 0;
}
Eigen::Vector3d FaceRule::getFirstSurfaceVector(Element const* const e)
{
auto const a =
Eigen::Map<Eigen::Vector3d const>(e->getNode(0)->getCoords());
auto const b =
Eigen::Map<Eigen::Vector3d const>(e->getNode(1)->getCoords());
Eigen::Vector3d const v = a - b;
return v;
}
Eigen::Vector3d FaceRule::getSecondSurfaceVector(Element const* const e)
{
auto const a =
Eigen::Map<Eigen::Vector3d const>(e->getNode(1)->getCoords());
auto const b =
Eigen::Map<Eigen::Vector3d const>(e->getNode(2)->getCoords());
Eigen::Vector3d const v = b - a;
return v;
}
Eigen::Vector3d FaceRule::getSurfaceNormal(const Element* e)
{
Eigen::Vector3d const u = getFirstSurfaceVector(e);
Eigen::Vector3d const v = getSecondSurfaceVector(e);
return u.cross(v);
}
} // namespace MeshLib
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