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80 lines
2.2 KiB
80 lines
2.2 KiB
6 years ago
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/*
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* interpolation.h
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*
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* interpolation - An interpolation library for Arduino.
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* Author: Jose Gama 2015
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*
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* This library is free software; you can redistribute it
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* and/or modify it under the terms of the GNU Lesser
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* General Public License as published by the Free Software
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* Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* This library is distributed in the hope that it will
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* be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser
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* General Public License along with this library; if not,
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* write to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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/*
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* From: https://github.com/tuxcell/interpolationArduino
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* replaced all doubles by float (wirtz@parasitstudio.de)
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*/
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#ifndef interpolation_h
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#define interpolation_h
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#if defined(ARDUINO) && ARDUINO >= 100
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#include <Arduino.h>
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#else
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#include <WProgram.h>
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#endif
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class interpolation
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{
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public:
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// constructor
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interpolation( void );
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interpolation( float x[], float y[], int lenXY);
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interpolation( float x[], float y[], int lenXY, float valInterp);
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void valueI( float valInterp );
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void valuelenXY( int lenXY );
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void valueX( float x[]);
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void valueY( float y[]);
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void valueXM( float XM[]);
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void valueZ( float Z[]);
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float LinearInterpolate();
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float CosineInterpolate();
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float CubicInterpolate();
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float LagrangeInterpolate();
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float QuadraticInterpolate();
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float AkimaInterpolate();
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private:
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float* _x;
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float* _y;
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float* _XM;
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float* _Z;
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int _lenXY;
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float _valInterp;
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float LinearInterp( float x[], float y[], int n, float p );
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float CosineInterp( float x[], float y[], int n, float p );
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float CubicInterp( float x[], float y[], int n, float p );
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float LagrangeInterp( float x[], float y[], int n, float p );
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float QuadraticInterp( float x[], float y[], int n, float p );
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float AkimaInterp( float x[], float y[], float XM[], float Z[], int n, float p );
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};
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#endif
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