79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
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/*
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Apophysis Plugin
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Copyright (C) 2007-2009 Michael Faber
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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// Must define this structure before we include apoplugin.h
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typedef struct
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{
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double oscope_separation;
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double oscope_frequency;
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double oscope_amplitude;
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double oscope_damping;
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double TWO_PI_freq;
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} Variables;
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#define _USE_MATH_DEFINES
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#include "apoplugin.h"
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// Set the name of this plugin
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APO_PLUGIN("oscilloscope");
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// Define the Variables
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APO_VARIABLES(
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VAR_REAL(oscope_separation, 1.0),
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VAR_REAL(oscope_frequency, M_PI),
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VAR_REAL(oscope_amplitude, 1.0),
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VAR_REAL(oscope_damping, 0.0)
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);
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int PluginVarPrepare(Variation* vp)
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{
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VAR(TWO_PI_freq) = VAR(oscope_frequency) * M_PI*2;
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return TRUE;
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}
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int PluginVarCalc(Variation* vp)
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{
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double t;
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if(VAR(oscope_damping) == 0)
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{
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t = VAR(oscope_amplitude)*cos(VAR(TWO_PI_freq)*FTx) + VAR(oscope_separation);
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}
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else
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{
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t = VAR(oscope_amplitude)*exp(-fabs(FTx)*VAR(oscope_damping))*cos(VAR(TWO_PI_freq)*FTx) + VAR(oscope_separation);
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}
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if(fabs(FTy) <= t)
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{
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FPx += VVAR*FTx;
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FPy -= VVAR*FTy;
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}
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else
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{
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FPx += VVAR*FTx;
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FPy += VVAR*FTy;
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}
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return TRUE;
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}
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