60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
// Copyright (C) 2008 Tim Moore timoore@redhat.com
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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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#ifdef HAVE_CONFIG_H
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# include <simgear_config.h>
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#endif
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#include "SGMath.hxx"
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#ifndef NO_OPENSCENEGRAPH_INTERFACE
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osg::Matrix SGGeod::makeSimulationFrameRelative() const
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{
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SGQuatd hlOr = SGQuatd::fromLonLat(*this);
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return osg::Matrix(toOsg(hlOr));
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}
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osg::Matrix SGGeod::makeSimulationFrame() const
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{
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osg::Matrix result(makeSimulationFrameRelative());
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SGVec3d coord;
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SGGeodesy::SGGeodToCart(*this, coord);
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result.setTrans(toOsg(coord));
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return result;
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}
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osg::Matrix SGGeod::makeZUpFrameRelative() const
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{
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osg::Matrix result(makeSimulationFrameRelative());
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// 180 degree rotation around Y axis
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osg::Quat flip(0.0, 1.0, 0.0, 0.0);
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result.preMult(osg::Matrix(flip));
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return result;
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}
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osg::Matrix SGGeod::makeZUpFrame() const
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{
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osg::Matrix result(makeZUpFrameRelative());
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SGVec3d coord;
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SGGeodesy::SGGeodToCart(*this, coord);
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result.setTrans(toOsg(coord));
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return result;
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}
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#endif
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