57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
|
/*
|
||
|
|
Apophysis Plugin
|
||
|
|
|
||
|
|
This program is free software; you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation; either version 2 of the License, or
|
||
|
|
(at your option) any later version.
|
||
|
|
|
||
|
|
This program is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
GNU General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with this program; if not, write to the Free Software
|
||
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
double polynomial_powx, polynomial_powy;
|
||
|
|
double polynomial_lcx, polynomial_lcy;
|
||
|
|
double polynomial_scx, polynomial_scy;
|
||
|
|
} Variables;
|
||
|
|
|
||
|
|
#include "apoplugin.h"
|
||
|
|
|
||
|
|
APO_PLUGIN("polynomial");
|
||
|
|
|
||
|
|
APO_VARIABLES(
|
||
|
|
VAR_REAL(polynomial_powx, 1.0),
|
||
|
|
VAR_REAL(polynomial_powy, 1.0),
|
||
|
|
VAR_REAL(polynomial_lcx, 0.0),
|
||
|
|
VAR_REAL(polynomial_lcy, 0.0),
|
||
|
|
VAR_REAL(polynomial_scx, 0.0),
|
||
|
|
VAR_REAL(polynomial_scy, 0.0)
|
||
|
|
);
|
||
|
|
|
||
|
|
int PluginVarPrepare(Variation* vp)
|
||
|
|
{
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline double sgn(double v) { return (v < 0) ? -1 : (v > 0) ? 1 : 0; }
|
||
|
|
int PluginVarCalc(Variation* vp)
|
||
|
|
{
|
||
|
|
double xp = pow(VVAR * fabs(FTx), VAR(polynomial_powx));
|
||
|
|
double yp = pow(VVAR * fabs(FTy), VAR(polynomial_powy));
|
||
|
|
double zp = VVAR * FTz;
|
||
|
|
|
||
|
|
FPx += xp * sgn(FTx) + VAR(polynomial_lcx) * FTx + VAR(polynomial_scx);
|
||
|
|
FPy += yp * sgn(FTy) + VAR(polynomial_lcy) * FTy + VAR(polynomial_scy);
|
||
|
|
FPz += zp;
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|