60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
/**
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* \file texcoord.hxx
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* Routine to handle texture coordinate generation.
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*/
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// Written by Curtis Olson, started March 1999.
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//
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// Copyright (C) 1999 Curtis L. Olson - http://www.flightgear.org/~curt
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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 GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#ifndef _TEXCOORD_HXX
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#define _TEXCOORD_HXX
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#ifndef __cplusplus
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# error This library requires C++
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#endif
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#include <simgear/bucket/newbucket.hxx>
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#include <simgear/math/sg_types.hxx>
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#include <simgear/math/SGMathFwd.hxx>
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#include <simgear/math/SGGeod.hxx>
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#include <simgear/math/SGVec2.hxx>
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/**
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* Traverse the specified fan/strip/list of vertices and attempt to
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* calculate "none stretching" texture coordinates.
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* @param b the bucket containing the structure
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* @param geod_nodes vertices in geodetic coordinates
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* @param fan integer list of indices pointing into the vertex list
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* @param scale (default = 1.0) scaling factor
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* @return list of texture coordinates
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*/
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std::vector<SGVec2f> sgCalcTexCoords( const SGBucket& b, const std::vector<SGGeod>& geod_nodes,
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const int_list& fan, double scale = 1.0 );
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std::vector<SGVec2f> sgCalcTexCoords( double centerLat, const std::vector<SGGeod>& geod_nodes,
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const int_list& fan, double scale = 1.0 );
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#endif // _TEXCOORD_HXX
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