00001 /* 00002 This file is part of the Virtual Object System of 00003 the Interreality project (http://interreality.org). 00004 00005 Copyright (C) 2002 Reed Hedges 00006 00007 This software was written at the University of Massachusetts with 00008 support from NSF grant #EIA 9703217 00009 00010 This library is free software; you can redistribute it and/or 00011 modify it under the terms of the GNU Lesser General Public 00012 License as published by the Free Software Foundation; either 00013 version 2 of the License, or (at your option) any later version. 00014 00015 This library is distributed in the hope that it will be useful, 00016 but WITHOUT ANY WARRANTY; without even the implied warranty of 00017 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00018 Lesser General Public License for more details. 00019 00020 You should have received a copy of the GNU Lesser General Public 00021 License along with this library; if not, write to the Free Software 00022 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00023 00024 Reed Hedges <reed@zerohour.net> 00025 */ 00026 00027 #ifndef _POSITIONTRK_HH_ 00028 #define _POSITIONTRK_HH_ 00029 00030 #include "tracker.hh" 00031 00032 00033 /** This class provides an interface for position information */ 00034 class Position : public Tracker 00035 { 00036 protected: 00037 double xScale; 00038 double yScale; 00039 double zScale; 00040 double xOffset; 00041 double yOffset; 00042 double zOffset; 00043 00044 public: 00045 /** Constructor. */ 00046 Position() : Tracker(), xScale(1), yScale(1), zScale(1), xOffset(0), yOffset(0), zOffset(0) {} 00047 00048 /** Get position. x and z are horizontal axes, y is vertical. Scale and 00049 * origin are (unfortunately) tracker-dependent. */ 00050 virtual void getPosition(double* x, double* y, double* z) = 0; 00051 00052 /** Set scaling */ 00053 virtual void setScaling(double x, double y, double z) { 00054 xScale = x; 00055 yScale = y; 00056 zScale = z; 00057 } 00058 00059 /** Set offset */ 00060 virtual void setOffsets(double x, double y, double z) { 00061 xOffset = x; 00062 yOffset = y; 00063 zOffset = z; 00064 } 00065 }; 00066 00067 00068 #endif
1.3.2