Equalizer  1.4.1
osgScaleViewer/tracker.h
00001 
00002 /* Copyright (c) 2006, Dustin Wueest <wueest@dustin.ch>
00003  *
00004  * Redistribution and use in source and binary forms, with or without
00005  * modification, are permitted provided that the following conditions are met:
00006  *
00007  * - Redistributions of source code must retain the above copyright notice, this
00008  *   list of conditions and the following disclaimer.
00009  * - Redistributions in binary form must reproduce the above copyright notice,
00010  *   this list of conditions and the following disclaimer in the documentation
00011  *   and/or other materials provided with the distribution.
00012  * - Neither the name of Eyescale Software GmbH nor the names of its
00013  *   contributors may be used to endorse or promote products derived from this
00014  *   software without specific prior written permission.
00015  *
00016  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00017  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00018  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00019  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
00020  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00021  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00022  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00023  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00024  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00025  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00026  * POSSIBILITY OF SUCH DAMAGE.
00027  */
00028 
00029 #ifndef FOB_TRACKER_H
00030 #define FOB_TRACKER_H
00031 
00032 #define EQ_IGNORE_GLEW
00033 #include <eq/eq.h>
00034 #include <string>
00035 
00036     class Tracker
00037     {
00038     public:
00042         Tracker();
00043 
00053         bool init( const std::string& port );
00054 
00061         void setWorldToEmitter( const eq::Matrix4f& matrix )
00062             { _worldToEmitter = matrix; }
00063 
00070         void setSensorToObject( const eq::Matrix4f& matrix )
00071             { _sensorToObject = matrix; }
00072 
00079         bool isRunning() const { return _running; }
00080 
00090         bool update();
00091 
00100         const eq::Matrix4f& getMatrix() const { return _matrix; }
00101 
00102     private:
00103         bool _update(); //update without state checking
00104         bool _read( unsigned char* buffer, const size_t size,
00105                     const unsigned long int timeout );
00106 
00108         bool  _running;
00109 
00110         int   _fd;
00111 
00116         eq::Matrix4f _matrix;
00117 
00119         eq::Matrix4f _worldToEmitter;
00121         eq::Matrix4f _sensorToObject;
00122     };
00123 
00124 #endif // FOB_TRACKER_H
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