71 lines
2 KiB
C++
71 lines
2 KiB
C++
// digitalfilter.hxx - a selection of digital filters
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//
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// Written by Torsten Dreyer
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// Based heavily on work created by Curtis Olson, started January 2004.
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//
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// Copyright (C) 2004 Curtis L. Olson - http://www.flightgear.org/~curt
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// Copyright (C) 2010 Torsten Dreyer - Torsten (at) t3r (dot) de
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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#ifndef __DIGITALFILTER_HXX
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#define __DIGITALFILTER_HXX 1
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "analogcomponent.hxx"
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namespace FGXMLAutopilot {
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/**
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* brief@ DigitalFilter - a selection of digital filters
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*
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*/
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class DigitalFilter : public AnalogComponent
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{
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private:
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SGSharedPtr<class DigitalFilterImplementation> _implementation;
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enum InitializeTo {
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INITIALIZE_OUTPUT,
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INITIALIZE_INPUT,
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INITIALIZE_NONE
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};
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protected:
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virtual bool configure( SGPropertyNode& cfg_node,
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const std::string& cfg_name,
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SGPropertyNode& prop_root );
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virtual void update( bool firstTime, double dt);
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InputValueList _Tf;
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InputValueList _samples;
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InputValueList _rateOfChange;
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InputValueList _gain;
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InitializeTo _initializeTo;
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public:
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DigitalFilter();
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~DigitalFilter();
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virtual bool configure( SGPropertyNode& prop_root,
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SGPropertyNode& cfg );
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};
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} // namespace FGXMLAutopilot
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#endif
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