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73 lines
2.3 KiB
73 lines
2.3 KiB
// This file is part of Kig, a KDE program for Interactive Geometry...
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// Copyright (C) 2004 Dominique Devriese <devriese@kde.org>
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// Copyright (C) 2004 Pino Toscano <toscano.pino@tiscali.it>
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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
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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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
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// 02110-1301, USA.
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#ifndef KIG_MISC_GONIOMETRY_H
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#define KIG_MISC_GONIOMETRY_H
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#include <tqstringlist.h>
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/**
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* Manage an angle and convert it from/to other goniometric systems.
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*/
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class Goniometry
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{
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public:
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enum System { Deg, Rad, Grad };
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Goniometry();
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Goniometry( double value, Goniometry::System system );
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~Goniometry();
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void setValue( double value );
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const double value() const;
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/**
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* Set the system of the current angle to \p system, but it doesn't
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* convert the value to the new system.
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*
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* \see convertTo()
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*/
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void setSystem( Goniometry::System system );
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/**
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* Set the system of the current angle to \p system and convert the
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* value to the new system using \ref convert().
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*
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* \see setSystem()
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*/
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void convertTo( Goniometry::System system );
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const Goniometry::System system() const;
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double getValue( Goniometry::System system );
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/**
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* The most useful method of this class: convert the specified
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* \p angle from the system \p from to the system \p to.
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*/
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static double convert( const double angle, const Goniometry::System from, const Goniometry::System to );
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/**
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* Get a list of the supported goniometric systems.
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*/
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static TQStringList systemList();
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static Goniometry::System intToSystem( const int index );
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Goniometry& operator= ( const Goniometry& g );
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private:
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double mvalue;
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typedef Goniometry::System goniosys;
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goniosys msys;
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};
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#endif
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