1 /* 2 * This program source code file is part of KiCad, a free EDA CAD application. 3 * 4 * Copyright (C) 2015 Cirilo Bernardo <cirilo.bernardo@gmail.com> 5 * Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, you may find one here: 19 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html 20 * or you may search the http://www.gnu.org website for the version 2 license, 21 * or you may write to the Free Software Foundation, Inc., 22 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA 23 */ 24 25 /** 26 * @file sg_coordindex.h 27 */ 28 29 #ifndef SG_COORDINDEX_H 30 #define SG_COORDINDEX_H 31 32 #include "3d_cache/sg/sg_index.h" 33 34 /** 35 * An object to maintain a coordinate index list. 36 * 37 * Users must ensure that coordinate indices are specified as triplets (triangular faces) 38 * since no checking is performed. In instances where it is not possible to determine which 39 * side of the triangle is to be rendered (for example IGES entities) then the user must 40 * supply each triplet in both point orders. 41 */ 42 class SGCOORDINDEX : public SGINDEX 43 { 44 public: 45 SGCOORDINDEX( SGNODE* aParent ); 46 virtual ~SGCOORDINDEX(); 47 48 /** 49 * Add all coordinate indices to the given list in preparation for a normals calculation. 50 */ 51 void GatherCoordIndices( std::vector< int >& aIndexList ); 52 }; 53 54 #endif // SG_COORDINDEX_H 55