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/***************************************************************************
* Copyright (c) 2005 Imetric 3D GmbH *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#ifndef MESH_HELPERS_H
#define MESH_HELPERS_H
#include "Elements.h"
namespace MeshCore
{
/**
* Helper class for points.
*/
struct MeshExport MeshHelpPoint
{
inline void Set(FacetIndex ulCorner, FacetIndex ulFacet, const Base::Vector3f& rclPt);
inline bool operator<(const MeshHelpPoint& rclObj) const;
inline bool operator==(const MeshHelpPoint& rclObj) const;
FacetIndex Index() const
{
return _ulInd >> 2;
}
FacetIndex Corner() const
{
return _ulInd & 3;
}
MeshPoint _clPt;
FacetIndex _ulInd {FACET_INDEX_MAX};
};
/**
* Helper class for list of points.
*/
struct MeshPointBuilder: public std::vector<MeshHelpPoint>
{
inline void Add(FacetIndex ulCorner, FacetIndex ulFacet, const Base::Vector3f& rclPt);
};
/**
* Helper class for edges.
*/
struct MeshExport MeshHelpBuilderEdge
{
FacetIndex Side() const
{
return _ulFIndex & 3;
}
FacetIndex Index() const
{
return _ulFIndex >> 2;
}
inline void Set(PointIndex ulInd1, PointIndex ulInd2, FacetIndex ulSide, FacetIndex ulFInd);
inline bool operator<(const MeshHelpBuilderEdge& rclObj) const;
inline bool operator==(const MeshHelpBuilderEdge& rclObj) const;
inline bool operator!=(const MeshHelpBuilderEdge& rclObj) const;
FacetIndex _ulFIndex; // facet index
PointIndex _aulInd[2]; // point index
};
/**
* Helper class to build up list of edges.
*/
struct MeshEdgeBuilder: public std::vector<MeshHelpBuilderEdge>
{
using _TIterator = std::vector<MeshHelpBuilderEdge>::iterator;
inline void Add(PointIndex ulInd1, PointIndex ulInd2, FacetIndex ulSide, FacetIndex ulFInd);
};
inline void MeshHelpPoint::Set(FacetIndex ulCorner, FacetIndex ulFacet, const Base::Vector3f& rclPt)
{
_ulInd = (ulFacet << 2) | ulCorner;
_clPt = rclPt;
}
inline bool MeshHelpPoint::operator<(const MeshHelpPoint& rclObj) const
{
if (_clPt.x == rclObj._clPt.x) {
if (_clPt.y == rclObj._clPt.y) {
return _clPt.z < rclObj._clPt.z;
}
else {
return _clPt.y < rclObj._clPt.y;
}
}
else {
return _clPt.x < rclObj._clPt.x;
}
}
inline bool MeshHelpPoint::operator==(const MeshHelpPoint& rclObj) const
{
return Base::DistanceP2(_clPt, rclObj._clPt) < MeshDefinitions::_fMinPointDistanceP2;
}
inline void MeshPointBuilder::Add(FacetIndex ulCorner, FacetIndex ulFacet, const Base::Vector3f& rclPt)
{
MeshHelpPoint clObj;
clObj.Set(ulCorner, ulFacet, rclPt);
push_back(clObj);
}
inline void MeshHelpBuilderEdge::Set(
PointIndex ulInd1,
PointIndex ulInd2,
FacetIndex ulSide,
FacetIndex ulFInd
)
{
if (ulInd1 < ulInd2) {
_aulInd[0] = ulInd1;
_aulInd[1] = ulInd2;
}
else {
_aulInd[0] = ulInd2;
_aulInd[1] = ulInd1;
}
_ulFIndex = (ulFInd << 2) | ulSide;
}
inline bool MeshHelpBuilderEdge::operator<(const MeshHelpBuilderEdge& rclObj) const
{
if (_aulInd[0] == rclObj._aulInd[0]) {
return _aulInd[1] < rclObj._aulInd[1];
}
else {
return _aulInd[0] < rclObj._aulInd[0];
}
}
inline bool MeshHelpBuilderEdge::operator==(const MeshHelpBuilderEdge& rclObj) const
{
return (_aulInd[0] == rclObj._aulInd[0]) && (_aulInd[1] == rclObj._aulInd[1]);
}
inline bool MeshHelpBuilderEdge::operator!=(const MeshHelpBuilderEdge& rclObj) const
{
return (_aulInd[0] != rclObj._aulInd[0]) || (_aulInd[1] != rclObj._aulInd[1]);
}
inline void MeshEdgeBuilder::Add(PointIndex ulInd1, PointIndex ulInd2, FacetIndex ulSide, FacetIndex ulFInd)
{
MeshHelpBuilderEdge clObj {};
clObj.Set(ulInd1, ulInd2, ulSide, ulFInd);
push_back(clObj);
}
} // namespace MeshCore
#endif // MESH_HELPERS_H
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