/*
JWildfire - an image and animation processor written in Java
Copyright (C) 1995-2011 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.fabs;
import static org.jwildfire.base.mathlib.MathLib.pow;
import org.jwildfire.create.tina.base.XForm;
import org.jwildfire.create.tina.base.XYZPoint;
public class LinearT3DFunc extends VariationFunc {
private static final long serialVersionUID = 1L;
private static final String PARAM_POWX = "powX";
private static final String PARAM_POWY = "powY";
private static final String PARAM_POWZ = "powZ";
private static final String[] paramNames = { PARAM_POWX, PARAM_POWY, PARAM_POWZ };
private double powX = 1.2;
private double powY = 1.2;
private double powZ = 1.2;
private double sgn(double arg)
{
if (arg > 0)
return 1.0;
else
return -1.0;
}
@Override
public void transform(FlameTransformationContext pContext, XForm pXForm, XYZPoint pAffineTP, XYZPoint pVarTP, double pAmount) {
// linearT3D by FractalDesire, http://fractaldesire.deviantart.com/journal/linearT-plugin-219864320
pVarTP.x += sgn(pAffineTP.x) * pow(fabs(pAffineTP.x), this.powX) * pAmount;
pVarTP.y += sgn(pAffineTP.y) * pow(fabs(pAffineTP.y), this.powY) * pAmount;
pVarTP.z += sgn(pAffineTP.z) * pow(fabs(pAffineTP.z), this.powZ) * pAmount;
}
@Override
public String[] getParameterNames() {
return paramNames;
}
@Override
public Object[] getParameterValues() {
return new Object[] { powX, powY, powZ };
}
@Override
public String[] getParameterAlternativeNames() {
return new String[] { "lT_powX", "lT_powY", "lT_powZ" };
}
@Override
public void setParameter(String pName, double pValue) {
if (PARAM_POWX.equalsIgnoreCase(pName))
powX = pValue;
else if (PARAM_POWY.equalsIgnoreCase(pName))
powY = pValue;
else if (PARAM_POWZ.equalsIgnoreCase(pName))
powZ = pValue;
else
throw new IllegalArgumentException(pName);
}
@Override
public String getName() {
return "linearT3D";
}
}