plantuml/src/net/sourceforge/plantuml/svek/extremity/MiddleSubset.java

83 lines
2.5 KiB
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: Arnaud Roques
*
*
*/
package net.sourceforge.plantuml.svek.extremity;
import net.sourceforge.plantuml.klimt.UStroke;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.geom.XPoint2D;
import net.sourceforge.plantuml.klimt.shape.UEllipse;
import net.sourceforge.plantuml.klimt.shape.ULine;
class MiddleSubset extends Extremity {
private final double radius = 6;
private final double length = 10;
private final double angle;
private final boolean reverse;
public MiddleSubset(double angle, boolean reverse) {
this.angle = angle;
this.reverse = reverse;
}
@Override
public XPoint2D somePoint() {
return null;
}
public void drawU(UGraphic ug) {
ug = ug.apply(UStroke.withThickness(1.5));
final double rotate = reverse ? -45 : 135;
ug.apply(new UTranslate(-radius, -radius)).draw(new UEllipse(2 * radius, 2 * radius, angle + rotate, 180));
final double sin = Math.sin(Math.toRadians(angle + rotate));
final double cos = Math.cos(Math.toRadians(angle + rotate));
ug.apply(new UTranslate(radius * cos, radius * -sin)).draw(new ULine(length * sin, length * cos));
ug.apply(new UTranslate(radius * -cos, radius * sin)).draw(new ULine(length * sin, length * cos));
}
@Override
public double getDecorationLength() {
return radius;
}
}