private static void renderHull(PtEntry pt) {
Inf inf = Inf.create();
int count = 30;
PtEntry ptStart = pt;
do {
inf.update();
if (pt.prev(true) != null) {
boolean valley = false;
valley =
(pt.prev(true).source() == pt.source() && pt.prev(true).orig().next(true) != pt.orig());
V.pushColor(MyColor.cBLUE);
V.pushStroke(valley ? STRK_RUBBERBAND : STRK_THICK);
V.drawLine(pt.prev(true), pt);
V.pop(2);
}
V.pushColor(MyColor.cDARKGREEN);
V.mark(pt, MARK_DISC, .6);
V.pop();
if (Editor.withLabels(true)) {
StringBuilder sb = new StringBuilder();
sb.append(" #" + pt.id());
if (pt.source() != null) sb.append(" <" + pt.source() + ">");
V.pushScale(.6);
V.draw(sb.toString(), MyMath.ptOnCircle(pt, MyMath.radians(30), 3), TX_FRAME | TX_BGND);
V.pop();
}
pt = pt.next(true);
if (count-- == 0) V.draw("too many points rendering!", 50, 50, TX_CLAMP);
} while (pt != ptStart && count > 0);
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("b<");
sb.append(getLabel(0));
sb.append(getLabel(1));
sb.append('>');
return sb.toString();
}
public String visString() {
StringBuilder sb = new StringBuilder();
if (visSeg != null) {
for (int i = 0; i < visSeg.size(); i += 2) {
double t0 = 0, t1 = 0;
if (flipped()) {
int j = visSeg.size() - i - 2;
t0 = toExt(visSeg.getDouble(j + 1));
t1 = toExt(visSeg.getDouble(j));
} else {
t0 = visSeg.getDouble(i);
t1 = visSeg.getDouble(i + 1);
}
sb.append("<");
sb.append(Tools.f(t0));
sb.append("..");
sb.append(Tools.f(t1));
sb.append("> ");
}
}
return sb.toString();
}
/**
* Construct a string
*
* @param javaMode : if true, generates java code to construct it
* @return String
*/
private String toString(boolean javaMode) {
StringBuilder sb = new StringBuilder();
// sb.setLength(0);
if (javaMode) {
sb.append(
"new Hyperbola(new FPoint2("
+ foci[RIGHT].x
+ ","
+ foci[RIGHT].y
+ "), new FPoint2("
+ foci[LEFT].x
+ ","
+ foci[LEFT].y
+ "), new FPoint2("
+ pt.x
+ ","
+ pt.y
+ "));");
} else {
sb.append("hyperbola: ");
if (!valid) {
sb.append("***INVALID***");
} else {
sb.append(
"f(r)="
+ foci[RIGHT]
+ " f(l)="
+ foci[LEFT]
+ " a="
+ Tools.f(a)
+ " c="
+ Tools.f(c));
sb.append(" flip=" + Tools.f(flipped()));
if (visSeg != null) {
sb.append("\nVisible segments: ");
for (int i = 0; i < visSeg.size(); i += 2) {
double t0 = 0, t1 = 0;
if (flipped()) {
int j = visSeg.size() - i - 2;
t0 = toExt(visSeg.getDouble(j + 1));
t1 = toExt(visSeg.getDouble(j));
} else {
t0 = visSeg.getDouble(i);
t1 = visSeg.getDouble(i + 1);
}
sb.append("<");
sb.append(Tools.f(t0));
sb.append("..");
sb.append(Tools.f(t1));
sb.append("> ");
}
sb.append("\n");
}
}
}
return sb.toString();
}