/*
JWildfire - an image and animation processor written in Java
Copyright (C) 1995-2015 Andreas Maschke
This is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser
General Public License as published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This software 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with this software;
if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jwildfire.create.tina.variation;
import static org.jwildfire.base.mathlib.MathLib.M_PI;
import static org.jwildfire.base.mathlib.MathLib.cos;
import static org.jwildfire.base.mathlib.MathLib.sin;
import org.jwildfire.base.Tools;
import org.jwildfire.create.tina.base.XForm;
import org.jwildfire.create.tina.base.XYZPoint;
public class CannabisCurveWFFunc extends VariationFunc {
private static final long serialVersionUID = 1L;
public static final String PARAM_FILLED = "filled";
private static final String[] paramNames = { PARAM_FILLED };
private int filled = 1;
@Override
public void transform(FlameTransformationContext pContext, XForm pXForm, XYZPoint pAffineTP, XYZPoint pVarTP, double pAmount) {
double a = pAffineTP.getPrecalcAtan();
// cannabis curve (http://mathworld.wolfram.com/CannabisCurve.html)
double r = (1 + 9.0 / 10.0 * cos(8.0 * a)) * (1 + 1.0 / 10.0 * cos(24.0 * a)) * (9.0 / 10.0 + 1.0 / 10.0 * cos(200.0 * a)) * (1.0 + sin(a));
a += M_PI / 2.0;
if (filled == 1) {
r *= pContext.random();
}
double nx = sin(a) * r;
double ny = cos(a) * r;
pVarTP.x += pAmount * nx;
pVarTP.y += pAmount * ny;
if (pContext.isPreserveZCoordinate()) {
pVarTP.z += pAmount * pAffineTP.z;
}
}
@Override
public String[] getParameterNames() {
return paramNames;
}
@Override
public Object[] getParameterValues() {
return new Object[] { filled };
}
@Override
public void setParameter(String pName, double pValue) {
if (PARAM_FILLED.equalsIgnoreCase(pName))
filled = Tools.FTOI(pValue);
else
throw new IllegalArgumentException(pName);
}
@Override
public String getName() {
return "cannabiscurve_wf";
}
}