net.sourceforge.plantuml.jsondiagram.JsonCurve Maven / Gradle / Ivy
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PlantUML is a component that allows to quickly write diagrams from text.
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
* |
* | 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/liberapay (only 1€ per month!)
* https://plantuml.com/paypal
*
*
* PlantUML 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 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see points = new ArrayList<>();
private double maxX, maxY;
private final Mirror xMirror;
private final double veryFirstLine;
private final XPoint2D sp;
private final XPoint2D ep;
public JsonCurve(ST_Agedgeinfo_t data, Mirror xMirror, double veryFirstLine) {
this.veryFirstLine = veryFirstLine;
this.xMirror = xMirror;
final ST_splines splines = data.spl;
if (splines.size != 1) {
throw new IllegalStateException();
}
final ST_bezier beziers = splines.list.get__(0);
for (int i = 0; i < beziers.size; i++) {
final XPoint2D pt = getPoint(splines, i);
maxX = Math.max(maxX, pt.getX());
maxY = Math.max(maxY, pt.getY());
points.add(pt);
}
if (beziers.sp.x == 0 && beziers.sp.y == 0) {
sp = null;
} else {
sp = new XPoint2D(beziers.sp.x, beziers.sp.y);
}
if (beziers.ep.x == 0 && beziers.ep.y == 0) {
ep = null;
} else {
ep = new XPoint2D(beziers.ep.x, beziers.ep.y);
}
}
private XPoint2D getPoint(ST_splines splines, int i) {
final ST_bezier beziers = splines.list.get__(0);
final ST_pointf pt = beziers.list.get__(i);
return new XPoint2D(pt.x, pt.y);
}
public void drawCurve(HColor color, UGraphic ug) {
final UPath path = UPath.none();
path.moveTo(getVeryFirst());
path.lineTo(xMirror.invAndXYSwitch(points.get(0)));
for (int i = 1; i < points.size(); i += 3) {
final XPoint2D pt2 = xMirror.invAndXYSwitch(points.get(i));
final XPoint2D pt3 = xMirror.invAndXYSwitch(points.get(i + 1));
final XPoint2D pt4 = xMirror.invAndXYSwitch(points.get(i + 2));
path.cubicTo(pt2, pt3, pt4);
}
ug.draw(path);
if (ep != null) {
final XPoint2D last = xMirror.invAndXYSwitch(points.get(points.size() - 1));
final XPoint2D trueEp = xMirror.invAndXYSwitch(ep);
new Arrow(last, trueEp).drawArrow(ug.apply(color.bg()));
}
}
public void drawSpot(UGraphic ug) {
final double size = 3;
ug = ug.apply(UTranslate.point(getVeryFirst()).compose(new UTranslate(-size, -size)));
ug.apply(UStroke.simple()).draw(UEllipse.build(2 * size, 2 * size));
}
private XPoint2D getVeryFirst() {
return supp(xMirror.invAndXYSwitch(points.get(0)), xMirror.invAndXYSwitch(points.get(1)), veryFirstLine);
}
private static XPoint2D supp(XPoint2D center, XPoint2D direction, double len) {
final double full = center.distance(direction);
final double dx = (center.getX() - direction.getX()) / full;
final double dy = (center.getY() - direction.getY()) / full;
return new XPoint2D(center.getX() + dx * len, center.getY() + dy * len);
}
public double getMaxX() {
return maxX;
}
public double getMaxY() {
return maxY;
}
}