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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 beziers = new ArrayList<>();
private String comment;
private String codeLine;
public DotPath copy() {
final DotPath result = new DotPath();
for (XCubicCurve2D c : this.beziers)
result.beziers.add(new XCubicCurve2D(c.x1, c.y1, c.ctrlx1, c.ctrly1, c.ctrlx2, c.ctrly2, c.x2, c.y2));
return result;
}
public static DotPath fromBeziers(List beziers) {
final DotPath result = new DotPath();
result.beziers.addAll(Objects.requireNonNull(beziers));
return result;
}
public DotPath() {
}
public DotPath addCurve(XPoint2D pt1, XPoint2D pt2, XPoint2D pt3, XPoint2D pt4) {
final List beziersNew = new ArrayList<>(beziers);
beziersNew.add(new XCubicCurve2D(pt1.getX(), pt1.getY(), pt2.getX(), pt2.getY(), pt3.getX(), pt3.getY(),
pt4.getX(), pt4.getY()));
return fromBeziers(beziersNew);
}
public DotPath addCurve(XPoint2D pt2, XPoint2D pt3, XPoint2D pt4) {
final XCubicCurve2D last = beziers.get(beziers.size() - 1);
final XPoint2D p1 = last.getP2();
return addCurve(p1, pt2, pt3, pt4);
}
// private final String print;
public XPoint2D getStartPoint() {
return beziers.get(0).getP1();
}
public Set sample() {
final Set result = new HashSet<>();
for (XCubicCurve2D bez : beziers)
sample(bez, result);
return Collections.unmodifiableSet(result);
}
private static void sample(XCubicCurve2D bez, Set result) {
final XPoint2D p1 = bez.getCtrlP1();
final XPoint2D p2 = bez.getCtrlP2();
if (bez.getFlatnessSq() > 0.5 || p1.distance(p2) > 4) {
final XCubicCurve2D left = XCubicCurve2D.none();
final XCubicCurve2D right = XCubicCurve2D.none();
bez.subdivide(left, right);
sample(left, result);
sample(right, result);
} else {
result.add(p1);
result.add(p2);
}
}
public PointAndAngle getMiddle() {
XPoint2D result = null;
double angle = 0;
for (XCubicCurve2D bez : beziers) {
final XCubicCurve2D left = XCubicCurve2D.none();
final XCubicCurve2D right = XCubicCurve2D.none();
bez.subdivide(left, right);
final XPoint2D p1 = left.getP1();
final XPoint2D p2 = left.getP2();
final XPoint2D p3 = right.getP1();
final XPoint2D p4 = right.getP2();
if (result == null || getCost(p1) < getCost(result)) {
result = p1;
angle = BezierUtils.getStartingAngle(left);
}
if (getCost(p2) < getCost(result)) {
result = p2;
angle = BezierUtils.getEndingAngle(left);
}
if (getCost(p3) < getCost(result)) {
result = p3;
angle = BezierUtils.getStartingAngle(right);
}
if (getCost(p4) < getCost(result)) {
result = p4;
angle = BezierUtils.getEndingAngle(right);
}
}
return new PointAndAngle(result, angle);
}
private double getCost(XPoint2D pt) {
final XPoint2D start = getStartPoint();
final XPoint2D end = getEndPoint();
return pt.distanceSq(start) + pt.distanceSq(end);
}
// public void forceStartPoint(double x, double y) {
// beziers.get(0).x1 = x;
// beziers.get(0).y1 = y;
// beziers.get(0).ctrlx1 = x;
// beziers.get(0).ctrly1 = y;
// }
public void moveStartPoint(UTranslate move) {
moveStartPoint(move.getDx(), move.getDy());
}
public void moveEndPoint(UTranslate move) {
moveEndPoint(move.getDx(), move.getDy());
}
public void moveStartPoint(double dx, double dy) {
if (beziers.size() > 1 && Math.sqrt(dx * dx + dy * dy) >= beziers.get(0).getLength()) {
dx -= beziers.get(1).x1 - beziers.get(0).x1;
dy -= beziers.get(1).y1 - beziers.get(0).y1;
beziers.remove(0);
}
beziers.get(0).x1 += dx;
beziers.get(0).y1 += dy;
beziers.get(0).ctrlx1 += dx;
beziers.get(0).ctrly1 += dy;
}
public XPoint2D getEndPoint() {
return beziers.get(beziers.size() - 1).getP2();
}
// public void forceEndPoint(double x, double y) {
// beziers.get(beziers.size() - 1).x2 = x;
// beziers.get(beziers.size() - 1).y2 = y;
// beziers.get(beziers.size() - 1).ctrlx2 = x;
// beziers.get(beziers.size() - 1).ctrly2 = y;
// }
public void moveEndPoint(double dx, double dy) {
beziers.get(beziers.size() - 1).x2 += dx;
beziers.get(beziers.size() - 1).y2 += dy;
beziers.get(beziers.size() - 1).ctrlx2 += dx;
beziers.get(beziers.size() - 1).ctrly2 += dy;
}
public MinFinder getMinFinder() {
final MinFinder result = new MinFinder();
for (XCubicCurve2D c : beziers) {
result.manage(c.x1, c.y1);
result.manage(c.x2, c.y2);
result.manage(c.ctrlx1, c.ctrly1);
result.manage(c.ctrlx2, c.ctrly2);
}
return result;
}
public MinMax getMinMax() {
MinMax result = MinMax.getEmpty(false);
for (XCubicCurve2D c : beziers) {
result = result.addPoint(c.x1, c.y1);
result = result.addPoint(c.x2, c.y2);
result = result.addPoint(c.ctrlx1, c.ctrly1);
result = result.addPoint(c.ctrlx2, c.ctrly2);
}
return result;
}
public double getMinDist(XPoint2D ref) {
double result = Double.MAX_VALUE;
for (XCubicCurve2D c : beziers) {
final double d1 = ref.distance(c.x1, c.y1);
if (d1 < result)
result = d1;
final double d2 = ref.distance(c.x2, c.y2);
if (d2 < result)
result = d2;
final double d3 = ref.distance(c.ctrlx1, c.ctrly1);
if (d3 < result)
result = d3;
final double d4 = ref.distance(c.ctrlx2, c.ctrly2);
if (d4 < result)
result = d4;
}
return result;
}
public Line2D getEndTangeante() {
final XCubicCurve2D last = beziers.get(beziers.size() - 1);
double dx = last.x2 - last.ctrlx2;
double dy = last.y2 - last.ctrly2;
if (dx == 0 && dy == 0) {
dx = last.x2 - last.x1;
dy = last.y2 - last.y1;
}
return new Line2D.Double(last.x2, last.y2, last.x2 + dx, last.y2 + dy);
}
public double getEndAngle() {
final Line2D tan = getEndTangeante();
final double theta1 = Math.atan2(tan.getY2() - tan.getY1(), tan.getX2() - tan.getX1());
return theta1;
}
public double getStartAngle() {
final Line2D tan = getStartTangeante();
final double theta1 = Math.atan2(tan.getY2() - tan.getY1(), tan.getX2() - tan.getX1());
return theta1;
}
public Line2D getStartTangeante() {
final XCubicCurve2D first = beziers.get(0);
double dx = first.ctrlx1 - first.x1;
double dy = first.ctrly1 - first.y1;
if (dx == 0 && dy == 0) {
dx = first.x2 - first.x1;
dy = first.y2 - first.y1;
}
return new Line2D.Double(first.x1, first.y1, first.x1 + dx, first.y1 + dy);
}
public DotPath addBefore(XCubicCurve2D before) {
final List copy = new ArrayList<>(beziers);
copy.add(0, before);
return fromBeziers(copy);
}
private DotPath addBefore(DotPath other) {
final List copy = new ArrayList<>(beziers);
copy.addAll(0, other.beziers);
return fromBeziers(copy);
}
public DotPath addAfter(XCubicCurve2D after) {
final List copy = new ArrayList<>(beziers);
copy.add(after);
return fromBeziers(copy);
}
public DotPath addAfter(DotPath other) {
final List copy = new ArrayList<>(beziers);
copy.addAll(other.beziers);
return fromBeziers(copy);
}
public void draw(Graphics2D g2d, double x, double y) {
final GeneralPath p = new GeneralPath();
for (XCubicCurve2D bez : beziers) {
final CubicCurve2D.Double bez2 = new CubicCurve2D.Double(x + bez.x1, y + bez.y1, x + bez.ctrlx1,
y + bez.ctrly1, x + bez.ctrlx2, y + bez.ctrly2, x + bez.x2, y + bez.y2);
p.append(bez2, true);
}
g2d.draw(p);
}
public void manageEnsureVisible(double x, double y, EnsureVisible visible) {
for (XCubicCurve2D bez : beziers) {
visible.ensureVisible(x + bez.x1, y + bez.y1);
visible.ensureVisible(x + bez.x2, y + bez.y2);
}
}
public UPath toUPath() {
final UPath result = new UPath(comment, codeLine);
boolean start = true;
for (XCubicCurve2D bez : beziers) {
if (start) {
result.add(new double[] { bez.x1, bez.y1 }, USegmentType.SEG_MOVETO);
start = false;
}
result.add(new double[] { bez.ctrlx1, bez.ctrly1, bez.ctrlx2, bez.ctrly2, bez.x2, bez.y2 },
USegmentType.SEG_CUBICTO);
}
return result;
}
static public String toString(XCubicCurve2D c) {
return "(" + c.x1 + "," + c.y1 + ") " + "(" + c.ctrlx1 + "," + c.ctrly1 + ") " + "(" + c.ctrlx2 + "," + c.ctrly2
+ ") " + "(" + c.x2 + "," + c.y2 + ") ";
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
for (XCubicCurve2D c : beziers) {
sb.append(toString(c));
sb.append(" - ");
}
return sb.toString();
}
public static XCubicCurve2D reverse(XCubicCurve2D curv) {
return new XCubicCurve2D(curv.getX2(), curv.getY2(), curv.getCtrlX2(), curv.getCtrlY2(), curv.getCtrlX1(),
curv.getCtrlY1(), curv.getX1(), curv.getY1());
}
public DotPath reverse() {
final List reverse = new ArrayList<>(beziers);
Collections.reverse(reverse);
final List copy = new ArrayList<>();
for (XCubicCurve2D cub : reverse)
copy.add(reverse(cub));
return fromBeziers(copy);
}
public void moveDelta(double deltaX, double deltaY) {
for (int i = 0; i < beziers.size(); i++) {
final XCubicCurve2D c = beziers.get(i);
beziers.set(i, new XCubicCurve2D(c.x1 + deltaX, c.y1 + deltaY, c.ctrlx1 + deltaX, c.ctrly1 + deltaY,
c.ctrlx2 + deltaX, c.ctrly2 + deltaY, c.x2 + deltaX, c.y2 + deltaY));
}
}
public final List getBeziers() {
return Collections.unmodifiableList(beziers);
}
public DotPath simulateCompound(RectangleArea head, RectangleArea tail) {
if (head == null && tail == null)
return this;
// System.err.println("head=" + head + " tail=" + tail);
DotPath me = this;
if (tail != null) {
// System.err.println("beziers1=" + this.toString());
if (tail.contains(getStartPoint())) {
final DotPath result = new DotPath();
int idx = 0;
while (idx + 1 < this.beziers.size() && tail.contains(this.beziers.get(idx).getP2())) {
if (tail.contains(this.beziers.get(idx).getP1()) == false)
throw new IllegalStateException();
idx++;
}
if (tail.contains(this.beziers.get(idx).getP2())) {
// System.err.println("strange1");
} else {
assert tail.contains(this.beziers.get(idx).getP1());
assert tail.contains(this.beziers.get(idx).getP2()) == false;
XCubicCurve2D current = this.beziers.get(idx);
for (int k = 0; k < 8; k++) {
final XCubicCurve2D part1 = XCubicCurve2D.none();
final XCubicCurve2D part2 = XCubicCurve2D.none();
current.subdivide(part1, part2);
assert part1.getP2().equals(part2.getP1());
if (tail.contains(part1.getP2())) {
current = part2;
} else {
result.beziers.add(0, part2);
current = part1;
}
}
for (int i = idx + 1; i < this.beziers.size(); i++)
result.beziers.add(this.beziers.get(i));
me = result;
}
}
}
if (head != null) {
final DotPath result = new DotPath();
if (head.contains(getEndPoint())) {
for (XCubicCurve2D current : me.beziers) {
if (head.contains(current.getP2()) == false) {
result.beziers.add(current);
} else {
if (head.contains(current.getP1())) {
return me;
}
assert head.contains(current.getP1()) == false;
assert head.contains(current.getP2());
for (int k = 0; k < 8; k++) {
final XCubicCurve2D part1 = XCubicCurve2D.none();
final XCubicCurve2D part2 = XCubicCurve2D.none();
current.subdivide(part1, part2);
assert part1.getP2().equals(part2.getP1());
if (head.contains(part1.getP2())) {
current = part1;
} else {
result.beziers.add(part1);
current = part2;
}
}
return result;
}
}
}
}
return me;
}
public boolean isLine() {
for (XCubicCurve2D curve : beziers)
if (curve.getFlatnessSq() > 0.001)
return false;
return true;
}
public void setCommentAndCodeLine(String comment, String codeLine) {
this.comment = comment;
this.codeLine = codeLine;
}
}