95a2f54683
git-svn-id: https://svn.code.sf.net/p/apophysis7x/svn/trunk@1 a5d1c0f9-a0e9-45c6-87dd-9d276e40c949
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/*
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Apophysis Plugin
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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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typedef struct
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{
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double polynomial_powx, polynomial_powy;
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double polynomial_lcx, polynomial_lcy;
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double polynomial_scx, polynomial_scy;
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} Variables;
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#include "apoplugin.h"
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APO_PLUGIN("polynomial");
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APO_VARIABLES(
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VAR_REAL(polynomial_powx, 1.0),
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VAR_REAL(polynomial_powy, 1.0),
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VAR_REAL(polynomial_lcx, 0.0),
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VAR_REAL(polynomial_lcy, 0.0),
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VAR_REAL(polynomial_scx, 0.0),
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VAR_REAL(polynomial_scy, 0.0)
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);
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int PluginVarPrepare(Variation* vp)
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{
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return TRUE;
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}
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inline double sgn(double v) { return (v < 0) ? -1 : (v > 0) ? 1 : 0; }
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int PluginVarCalc(Variation* vp)
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{
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double xp = pow(VVAR * fabs(FTx), VAR(polynomial_powx));
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double yp = pow(VVAR * fabs(FTy), VAR(polynomial_powy));
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double zp = VVAR * FTz;
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FPx += xp * sgn(FTx) + VAR(polynomial_lcx) * FTx + VAR(polynomial_scx);
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FPy += yp * sgn(FTy) + VAR(polynomial_lcy) * FTy + VAR(polynomial_scy);
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FPz += zp;
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return TRUE;
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}
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