/*
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.atan2;
import static org.jwildfire.base.mathlib.MathLib.cos;
import static org.jwildfire.base.mathlib.MathLib.max;
import static org.jwildfire.base.mathlib.MathLib.min;
import static org.jwildfire.base.mathlib.MathLib.sin;
import static org.jwildfire.base.mathlib.MathLib.sqrt;
import org.jwildfire.base.Tools;
import org.jwildfire.create.tina.base.Layer;
import org.jwildfire.create.tina.base.XForm;
import org.jwildfire.create.tina.base.XYZPoint;
public class PostCircleCropFunc extends VariationFunc {
private static final long serialVersionUID = 1L;
private static final String PARAM_RADIUS = "radius";
private static final String PARAM_X = "x";
private static final String PARAM_Y = "y";
private static final String PARAM_SCATTER_AREA = "scatter_area";
private static final String PARAM_ZERO = "zero";
private static final String[] paramNames = { PARAM_RADIUS, PARAM_X, PARAM_Y, PARAM_SCATTER_AREA, PARAM_ZERO };
private double radius = 1.0;
private double x = 0.0;
private double y = 0.0;
private double scatter_area = 0.0;
private int zero = 1;
@Override
public void transform(FlameTransformationContext pContext, XForm pXForm, XYZPoint pAffineTP, XYZPoint pVarTP, double pAmount) {
// circlecrop by Xyrus02, http://xyrus02.deviantart.com/art/CircleCrop-Plugins-185353309
double x0 = x;
double y0 = y;
double cr = radius;
double ca = cA;
double vv = pAmount;
pVarTP.x -= x0;
pVarTP.y -= y0;
pVarTP.z += vv * pVarTP.z;
double rad = sqrt(pVarTP.x * pVarTP.x + pVarTP.y * pVarTP.y);
double ang = atan2(pVarTP.y, pVarTP.x);
double rdc = cr + (pContext.random() * 0.5 * ca);
boolean esc = rad > cr;
boolean cr0 = zero == 1;
double s = sin(ang);
double c = cos(ang);
pVarTP.doHide = false;
if (cr0 && esc) {
pVarTP.x = pVarTP.y = 0;
pVarTP.doHide = true;
}
else if (cr0 && !esc) {
pVarTP.x += vv * pVarTP.x + x0;
pVarTP.y += vv * pVarTP.y + y0;
}
else if (!cr0 && esc) {
pVarTP.x += vv * rdc * c + x0;
pVarTP.y += vv * rdc * s + y0;
}
else if (!cr0 && !esc) {
pVarTP.x += vv * pVarTP.x + x0;
pVarTP.y += vv * pVarTP.y + y0;
}
}
@Override
public String[] getParameterNames() {
return paramNames;
}
@Override
public Object[] getParameterValues() {
return new Object[] { radius, x, y, scatter_area, zero };
}
@Override
public void setParameter(String pName, double pValue) {
if (PARAM_RADIUS.equalsIgnoreCase(pName))
radius = pValue;
else if (PARAM_X.equalsIgnoreCase(pName))
x = pValue;
else if (PARAM_Y.equalsIgnoreCase(pName))
y = pValue;
else if (PARAM_SCATTER_AREA.equalsIgnoreCase(pName))
scatter_area = pValue;
else if (PARAM_ZERO.equalsIgnoreCase(pName))
zero = Tools.FTOI(pValue);
else
throw new IllegalArgumentException(pName);
}
@Override
public String getName() {
return "post_circlecrop";
}
private double cA;
@Override
public void init(FlameTransformationContext pContext, Layer pLayer, XForm pXForm, double pAmount) {
cA = max(-1.0, min(scatter_area, 1.0));
}
@Override
public int getPriority() {
return 1;
}
}