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/*
* Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
* UNIVERSITAT POMPEU FABRA
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/** @file UserTutorial4.cxx CLAM tutorial, example 4.
* This example illustrates:
* * a more efficient way to change the value of a dynamic attribute
* such as an array of samples.
* * How to synchronize different dynamic attributes in a data object.
*/
#include <Spectrum.hxx>
#include <SpectrumConfig.hxx>
#include <Array.hxx>
#include <Complex.hxx>
int main()
{
using namespace CLAM;
SpecTypeFlags flags;
flags.bMagPhase=false;
flags.bComplex=true;
SpectrumConfig spec_cfg;
spec_cfg.SetSize(513);
spec_cfg.SetType(flags);
Spectrum spec(spec_cfg);
// Instead of creating and initialize our own array, like in
// example 3, we get a reference to the uninitialized complex
// array (which already has the right size)
Array<Complex > &cplx = spec.GetComplexArray();
// ... and we initialize it directly.
for (int i=0; i<513; i++)
{
cplx[i].SetReal(1.0);
cplx[i].SetImag(1.0);
}
// We now add the Polar array attribute using the dynamic type
// mechanism.
spec.AddPolarArray();
spec.UpdateData();
// Beware: The following is easy to forget.
// When adding an attribute with the AddXXX() method,
// its size is not initialised. You must do it manually:
spec.SetSize(513);
// We finally force the spectrum object to set the new attribute
// to the right values. The flags argument has the bComplex member
// set to "true", indicating that the ComplexArray attribute is
// the one from which values will be taken.
spec.SynchronizeTo(flags);
return 0;
}
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