UEllipseHand.java
/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
*
* Project Info: https://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* https://plantuml.com/patreon (only 1$ per month!)
* https://plantuml.com/paypal
*
* This file is part of PlantUML.
*
* PlantUML 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 3 of the License, or
* (at your option) any later version.
*
* PlantUML 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*
* Original Author: Adrian Vogt
*
*/
package net.sourceforge.plantuml.klimt.drawing.hand;
import java.util.Random;
import net.sourceforge.plantuml.klimt.Shadowable;
import net.sourceforge.plantuml.klimt.geom.XPoint2D;
import net.sourceforge.plantuml.klimt.shape.UEllipse;
import net.sourceforge.plantuml.klimt.shape.UPolygon;
public class UEllipseHand {
private Shadowable poly;
private final Random rnd;
private double randomMe() {
return rnd.nextDouble();
}
public UEllipseHand(UEllipse source, Random rnd) {
this.rnd = rnd;
if (source.getStart() != 0 || source.getExtend() != 0) {
this.poly = source;
return;
}
poly = new UPolygon();
final double width = source.getWidth();
final double height = source.getHeight();
double angle = 0;
if (width == height) {
while (angle < Math.PI * 2) {
angle += (10 + randomMe() * 10) * Math.PI / 180;
final double variation = 1 + (randomMe() - 0.5) / 8;
final double x = width / 2 + Math.cos(angle) * width * variation / 2;
final double y = height / 2 + Math.sin(angle) * height * variation / 2;
// final XPoint2D p = new XPoint2D(x, y);
((UPolygon) poly).addPoint(x, y);
}
} else {
while (angle < Math.PI * 2) {
angle += Math.PI / 20;
final XPoint2D pt = getPoint(width, height, angle);
((UPolygon) poly).addPoint(pt.getX(), pt.getY());
}
}
this.poly.setDeltaShadow(source.getDeltaShadow());
}
private XPoint2D getPoint(double width, double height, double angle) {
final double x = width / 2 + Math.cos(angle) * width / 2;
final double y = height / 2 + Math.sin(angle) * height / 2;
final double variation = (randomMe() - 0.5) / 50;
return new XPoint2D(x + variation * width, y + variation * height);
}
public Shadowable getHanddrawn() {
return this.poly;
}
}