svcore
1.9
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00001 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ 00002 00003 /* 00004 Sonic Visualiser 00005 An audio file viewer and annotation editor. 00006 Centre for Digital Music, Queen Mary, University of London. 00007 This file copyright 2006 Chris Cannam. 00008 00009 This program is free software; you can redistribute it and/or 00010 modify it under the terms of the GNU General Public License as 00011 published by the Free Software Foundation; either version 2 of the 00012 License, or (at your option) any later version. See the file 00013 COPYING included with this distribution for more information. 00014 */ 00015 00016 #ifndef _LOG_RANGE_H_ 00017 #define _LOG_RANGE_H_ 00018 00019 #include <vector> 00020 #include "Debug.h" 00021 00022 class LogRange 00023 { 00024 public: 00031 static void mapRange(float &min, float &max, float thresh = -10); 00032 00038 static float map(float value, float thresh = -10); 00039 00044 static float unmap(float value); 00045 00051 static bool useLogScale(std::vector<float> values); 00052 00053 }; 00054 00055 #endif