wrlfacet.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2016 Cirilo Bernardo <[email protected]>
 * Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */

#ifndef WRLFACET_H
#define WRLFACET_H

#include <list>
#include <vector>
#include "wrltypes.h"
#include "plugins/3dapi/ifsg_all.h"


class SGNODE;

class FACET
{
public:
 FACET();

 void Init();
 bool HasMinPoints();
 bool HasColors();

 void AddVertex( WRLVEC3F& aVertex, int aIndex );

 void AddColor( const SGCOLOR& aColor );

 float CalcFaceNormal();

 void Renormalize( float aMaxValue );

 void CalcVertexNormal( int aIndex, std::list< FACET* >& aFacetList, float aCreaseAngle );

 bool GetWeightedNormal( int aIndex, WRLVEC3F& aNorm );

 bool GetFaceNormal( WRLVEC3F& aNorm );

 bool GetData( std::vector< WRLVEC3F >& aVertexList, std::vector< WRLVEC3F >& aNormalsList,
 std::vector< SGCOLOR >& aColorsList, WRL1_ORDER aVertexOrder );

 int GetMaxIndex()
 {
 return maxIdx;
 }

 void CollectVertices( std::vector< std::list< FACET* > >& aFacetList );

private:
 std::vector< WRLVEC3F > vertices; // vertices of the facet
 std::vector< SGCOLOR > colors; // per-vertex/per-face color (if any)
 std::vector< int > indices; // index of each vertex

 WRLVEC3F face_normal; // normal of this facet
 std::vector< WRLVEC3F > norms; // per-vertex normals
 std::vector< WRLVEC3F > vnweight; // angle weighted per vertex normal

 int maxIdx; // maximum index used
};


class SHAPE
{
public:
 ~SHAPE();

 FACET* NewFacet();
 SGNODE* CalcShape( SGNODE* aParent, SGNODE* aColor, WRL1_ORDER aVertexOrder,
 float aCreaseLimit = 0.74317, bool isVRML2 = false );

private:
 std::list< FACET* > facets;
};

#endif // WRLFACET_H