Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/Cartesian2Polar.cpp
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00001 /*
00002 ** Copyright (C) 1998-2006 George Tzanetakis <gtzan@cs.uvic.ca>
00003 **
00004 ** This program is free software; you can redistribute it and/or modify
00005 ** it under the terms of the GNU General Public License as published by
00006 ** the Free Software Foundation; either version 2 of the License, or
00007 ** (at your option) any later version.
00008 **
00009 ** This program is distributed in the hope that it will be useful,
00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 ** GNU General Public License for more details.
00013 **
00014 ** You should have received a copy of the GNU General Public License
00015 ** along with this program; if not, write to the Free Software
00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017 */
00018 
00019 #include "Cartesian2Polar.h"
00020 
00021 using std::ostringstream;
00022 using namespace Marsyas;
00023 
00024 Cartesian2Polar::Cartesian2Polar(mrs_string name):MarSystem("Cartesian2Polar", name)
00025 {
00026 }
00027 
00028 Cartesian2Polar::Cartesian2Polar(const Cartesian2Polar& a) : MarSystem(a)
00029 {
00030 }
00031 
00032 Cartesian2Polar::~Cartesian2Polar()
00033 {
00034 }
00035 
00036 MarSystem*
00037 Cartesian2Polar::clone() const
00038 {
00039   return new Cartesian2Polar(*this);
00040 }
00041 
00042 void
00043 Cartesian2Polar::addControls()
00044 {
00045 }
00046 
00047 void
00048 Cartesian2Polar::myUpdate(MarControlPtr sender)
00049 {
00050   MarSystem::myUpdate(sender);
00051 }
00052 
00053 
00054 void
00055 Cartesian2Polar::myProcess(realvec& in, realvec& out)
00056 {
00057   mrs_natural o,t;
00058   mrs_natural N = inObservations_/2;
00059 
00060   for (t = 0; t < inSamples_; t++)
00061   {
00062     for (o=0; o < N; o++)
00063     {
00064       out(o,t) = sqrt(in(2*o,t)*in(2*o,t)+in(2*o+1,t)*in(2*o+1,t));
00065       out(o+N,t) = atan2(in(2*o+1,t), in(2*o,t));
00066     }
00067   }
00068 }