public void runAlgorithm() {
// traceHull = null;
COper3.dbClear();
traceHullPt = null;
traceValley = null;
simple = null;
focusPt = null;
possHull = null;
valleyTri = null;
PtEntry.resetIds();
EdPolygon[] rgn = UHullMain.getPolygons();
if (rgn.length < 2) return;
if (C.vb(OLDALG)) {
T.disable();
simple = PossHullOper.buildPossibleHull(rgn);
T.enable();
}
possHull = calcPHullRange(rgn, 0, rgn.length - 1);
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == Connect) {
if (nbr < 3) {
if (nom.getText().length() == 0
|| pwd.getPassword().length == 0
|| jTextField1.getText().length() == 0) {
JOptionPane.showMessageDialog(
null,
"Vous devez donner votre pseudonyme, votre mot de passe ainsi que l'adresse du serveur de chat",
"Informations manquantes",
JOptionPane.WARNING_MESSAGE);
nbr++;
} else {
try {
J = (Contrat) Naming.lookup("rmi://" + jTextField1.getText() + ":1099/JChat");
} catch (RemoteException ex4) {
JOptionPane.showMessageDialog(
null,
"La connexion au serveur a échoué",
"Serveur non démarré",
JOptionPane.WARNING_MESSAGE);
System.out.println(ex4);
nbr++;
} catch (MalformedURLException ex4) {
JOptionPane.showMessageDialog(
null, "Connexion 2", "Erreur de connexion", JOptionPane.WARNING_MESSAGE);
nbr++;
} catch (NotBoundException ex4) {
JOptionPane.showMessageDialog(
null,
"Serveur non joignable",
"Erreur de connexion",
JOptionPane.WARNING_MESSAGE);
System.out.println(ex4);
System.exit(0);
}
if (J != null) {
try { // de la méthode connect distante
// Récupération de l'adresse de la machine du client
try {
adr = InetAddress.getLocalHost().getHostName();
} catch (UnknownHostException ex3) {
}
// Si le nom et le mot de passe fournies par le client sont valides
// Envoi du nom et mot de passe pour la vérification de la validité de ce client
// ainsi que le num de port
// , adresse de la machine du client et nom de l'objet distant du client pour
// pouvoir l'invoquer ultérieurementulté
num_port = J.get_num_port();
if (J.connect(nom.getText(), new String(pwd.getPassword()), adr, num_port)) {
srv_Adr = jTextField1.getText();
srv_state = true;
// fermeture de la fenetre de connexion
fermer();
try {
java.rmi.registry.LocateRegistry.createRegistry(num_port);
System.out.println("Ecoute sur le port : " + num_port);
// Placement de l'objet distant du client sur sa machine : localhost dans le
// registre pour le numéro de port spécifié
Naming.rebind("//" + adr + ":" + num_port + "/" + nom.getText(), retourObj());
System.out.println(Naming.list("//" + adr + ":" + num_port)[0]);
} catch (MalformedURLException ex2) {
System.out.println(ex2);
} catch (RemoteException ex1) {
System.out.println(ex1);
}
// Constructeur graphique de la classe Client
C = new Client(nom.getText(), new String(pwd.getPassword()));
Essai essai = new Essai();
SplashWindowApp splash = new SplashWindowApp(C, 2000, essai);
if (J.getnbrcon() >= 2) {
System.out.println("Mise à jour de la liste du nouveau connecté");
// Mise à jour de la liste des destinataires du nouveau connecté
for (int i = 0; i < J.getnbrcon(); i++)
if (J.list_con()[i].compareTo(nom.getText()) != 0) C.ajout(J.list_con()[i]);
}
} else {
JOptionPane.showMessageDialog(
null, "Vérifiez votre pseudonyme ou mot de passe");
nbr++;
}
} catch (RemoteException ex) {
System.out.println(ex);
}
}
}
if (nbr == 3) {
JOptionPane.showMessageDialog(null, "Nombre maximum d'essai est atteint");
System.exit(0);
}
}
} else {
if (e.getSource() == Annuler) System.exit(0);
}
}
private static void OLDexpandHull(
PtEntry convHullEntry, PtEntry aHull, PtEntry bHull, boolean ccw) {
boolean db__OLD = C.vb(DB_HULLEXPAND);
if (db__OLD && T.update()) T.msg("expandHull" + T.show(convHullEntry) + " ccw=" + ccw);
PtEntry[] opp = new PtEntry[2];
opp[0] = aHull;
opp[1] = bHull;
PtEntry old____hEnt = convHullEntry;
boolean advanced = false;
do {
if (old____hEnt != convHullEntry) advanced = true;
inf.update();
if (old____hEnt.source() == null) {
if (db__OLD && T.update())
T.msg("expandHull, source unknown, guaranteed not convex" + T.show(old____hEnt));
old____hEnt = old____hEnt.next(ccw);
continue;
}
int w = (old____hEnt.source() == opp[0].source()) ? 1 : 0;
PtEntry oppEnt = opp[w];
boolean isTangent =
!COper3.right(old____hEnt, oppEnt, oppEnt.next(true), ccw)
&& !COper3.right(old____hEnt, oppEnt, oppEnt.prev(true), ccw);
if (!isTangent) {
if (db__OLD && T.update())
T.msg(
"expandHull, advance tangent line"
+ T.show(oppEnt.toPolygon(), MyColor.cDARKGRAY, -1, MARK_X)
+ T.show(old____hEnt)
+ tl(old____hEnt, oppEnt));
opp[w] = oppEnt.next(ccw);
continue;
}
if (COper3.left(old____hEnt, oppEnt, old____hEnt.next(ccw), ccw)
&& COper3.left(old____hEnt, oppEnt, old____hEnt.prev(ccw), ccw)) {
DArray dispPts = new DArray();
// delete points until cross tangent line
PtEntry next = old____hEnt.next(ccw);
while (true) {
PtEntry prev = next;
dispPts.add(prev);
next = prev.delete(ccw);
inf.update();
if (COper3.right(old____hEnt, oppEnt, next, ccw)) {
FPoint2 cross = MyMath.linesIntersection(old____hEnt, oppEnt, prev, next, null);
old____hEnt = old____hEnt.insert(new PtEntry(cross), ccw);
if (db__OLD && T.update())
T.msg(
"expandHull, clipped to shadow region"
+ tl(old____hEnt, oppEnt)
+ T.show(old____hEnt)
+ T.show(dispPts));
break;
}
}
} else {
if (db__OLD && T.update())
T.msg(
"expandHull, not dipping into shadow region"
+ T.show(old____hEnt.next(ccw))
+ tl(old____hEnt, oppEnt));
}
old____hEnt = old____hEnt.next(ccw);
} while (!advanced || old____hEnt != convHullEntry);
}
/**
* Determine convex hull of two polygons, using rotating calipers method
*
* @param pa first polygon
* @param pb second polygon
* @return convex hull structure
*/
private static PtEntry hullOfPolygons(PtEntry pa, PtEntry pb, PtEntry aHull, PtEntry bHull) {
boolean db = C.vb(DB_INITIALHULL);
if (db && T.update())
T.msg(
"construct convex hull of polygons"
+ T.show(pa, MyColor.cBLUE, STRK_THICK, -1)
+ T.show(pb, MyColor.cDARKGREEN, STRK_THICK, -1));
PtEntry hullVertex = null;
// A hull vertex and index
PtEntry av = rightMostVertex(aHull);
// B hull vertex and index
PtEntry bv = rightMostVertex(bHull);
double theta = Math.PI / 2;
LineEqn aLine = new LineEqn(av, theta);
int bSide = aLine.sideOfLine(bv);
boolean bActive = (bSide == 0) ? (bv.y > av.y) : bSide < 0;
if (db && T.update()) T.msg("rightmost vertices" + T.show(av) + T.show(bv));
// construct initial vertex of hull
hullVertex = new PtEntry(!bActive ? av : bv);
// if (db && T.update())
// T.msg("constructed initial hull vertex: " + hullVertex);
PtEntry.join(hullVertex, hullVertex);
PtEntry firstEnt = hullVertex;
while (true) {
Inf.update(inf);
PtEntry av2 = av.next(true);
PtEntry bv2 = bv.next(true);
// next vertex is either A advance, B advance, or bridge
double anga = MyMath.polarAngle(av, av2);
double angb = MyMath.polarAngle(bv, bv2);
double angBridge = bActive ? MyMath.polarAngle(bv, av) : MyMath.polarAngle(av, bv);
double ta = MyMath.normalizeAnglePositive(anga - theta);
double tb = MyMath.normalizeAnglePositive(angb - theta);
double tc = MyMath.normalizeAnglePositive(angBridge - theta);
// precision problem: if A and B tangent lines are parallel, both can
// reach near zero simultaneously
final double MAX = Math.PI * 2 - 1e-3;
if (ta >= MAX) ta = 0;
if (tb >= MAX) tb = 0;
if (tc >= MAX) tc = 0;
theta += Math.min(ta, Math.min(tb, tc));
if (db && T.update())
T.msg("caliper" + T.show(hullVertex) + tr(hullVertex, theta) + tp(av) + tp(bv));
PtEntry newPoint = null;
if (ta <= tb && ta <= tc) {
if (db && T.update()) T.msg("A vertex is nearest" + tl(av, av2));
// ai++;
av = av2;
if (!bActive) newPoint = av;
} else if (tb <= ta && tb <= tc) {
if (db && T.update()) T.msg("B vertex is nearest" + tl(bv, bv2));
// bi++;
bv = bv2;
if (bActive) newPoint = bv;
} else {
if (db && T.update())
T.msg("Bridge vertex is nearest" + tl(bActive ? bv : av, bActive ? av : bv));
bActive ^= true;
newPoint = bActive ? bv : av;
}
if (newPoint != null) {
if (PtEntry.samePoint(newPoint, firstEnt)) {
break;
}
// construct new vertex for hull of the two;
// remember, use original vertex, not the convex hull
hullVertex = hullVertex.insert(new PtEntry(newPoint), true);
if (db && T.update()) T.msg("adding new caliper vertex " + T.show(hullVertex));
}
}
return hullVertex;
}
public void addControls() {
C.sOpenTab("Valley");
{
C.sStaticText( //
"Generate possible hull in O(n log k) time, using 'valley' algorithm");
C.sCheckBox(
DB_INITIALHULL,
"db initial hull",
"trace construction of initial convex hull of the two polygons",
false);
C.sCheckBox(DB_CONTOUR, "db pt/poly", "trace point / polygon hull construction", false);
C.sCheckBox(
DB_INSERTVALLEY, "db insert valley", "trace insertion of monotonic valley edges", false);
C.sCheckBox(DB_HULLEXPAND, "db expand", "trace hull expansion procedure", false);
C.sCheckBox(
SKIPCONTOUR,
"skip contour",
"use original polygons and not their contours\n"
+ "(required to ensure monotonicity of tangent searches)",
false);
C.sCheckBox(OLDALG, "simple", "plot possible hull using old algorithm", false);
C.sCheckBox(OLDMETHOD, "old", "use old code", false);
C.sIntSpinner(
KERNELVERT,
"kernel vertex",
"specifies which vertex of the other polygon to use as point in pt/poly step",
0,
50,
0,
1);
}
C.sCloseTab();
}
private static void insertValleys(
PtEntry hullPt, Object aSrc, Object bSrc) { // pa, MyPolygon pb) {
boolean db = C.vb(DB_INSERTVALLEY);
PtEntry ent = hullPt;
if (db && T.update()) T.msg("insertValleys");
do {
PtEntry next = ent.next(true);
if (ent.source() == next.source()) {
PtEntry orig = ent.orig();
if (orig.next(true) != next.orig()) {
PtEntry vPeak0 = ent;
PtEntry vPeak1 = next;
EdPolygon opp = (EdPolygon) (vPeak0.source() == aSrc ? bSrc : aSrc);
FPoint2 kernelPt = opp.getPointMod(C.vi(KERNELVERT));
// construct a chain from the vertices of the valley
PtEntry handle = new PtEntry(vPeak0);
PtEntry hNext = handle;
PtEntry e = vPeak0.orig();
while (e != vPeak1.orig()) {
inf.update();
e = e.next(true);
hNext = hNext.insert(new PtEntry(e), true);
}
if (C.vb(SKIPCONTOUR)) {
PtEntry h0 = handle.next(true);
PtEntry h1 = hNext.prev(true);
PtEntry.join(vPeak0, h0);
PtEntry.join(h1, vPeak1);
if (db && T.update())
T.msg("inserted unmodified valley" + T.show(vPeak0) + T.show(vPeak1));
} else {
if (!C.vb(DB_CONTOUR)) T.disable();
PtEntry hull = COper3.buildHullForChain(handle, kernelPt);
if (!C.vb(DB_CONTOUR)) T.enable();
// find entries corresponding to start, end of hull
PtEntry peak0 = null, peak1 = null;
{
PtEntry hEnt = hull;
while (peak0 == null || peak1 == null) {
inf.update();
if (hEnt.orig() == vPeak0.orig()) peak0 = hEnt;
if (hEnt.orig() == vPeak1.orig()) peak1 = hEnt;
hEnt = hEnt.next(true);
}
}
PtEntry.join(vPeak0, peak0.next(true));
PtEntry.join(peak1.prev(true), vPeak1);
if (db && T.update())
T.msg("inserted monotonic valley" + T.show(vPeak0) + T.show(vPeak1));
}
}
}
ent = next;
} while (ent != hullPt);
}
/**
* Apply hull expansion procedure
*
* @param convHullEntry an entry of the hull (should be on the convex hull, so it is not deleted
* or replaced and is still valid for subsequent calls)
* @param aHull entry on convex hull of polygon A
* @param bHull entry on convex hull of polygon B
* @param ccw true to move in ccw direction, else cw
*/
private static void expandHull(PtEntry convHullEntry, PtEntry aHull, PtEntry bHull, boolean ccw) {
if (C.vb(OLDMETHOD)) {
OLDexpandHull(convHullEntry, aHull, bHull, ccw);
return;
}
boolean db = C.vb(DB_HULLEXPAND);
if (db && T.update()) T.msg("expandHull" + T.show(convHullEntry) + " ccw=" + ccw);
// tangent points for A, B
PtEntry[] tangentPoints = new PtEntry[2];
tangentPoints[0] = aHull;
tangentPoints[1] = bHull;
PtEntry hEnt = convHullEntry;
do {
inf.update();
// calculate tangent ray R
PtEntry tangentPt = null;
while (true) {
int tanIndex = (hEnt.source() == tangentPoints[0].source()) ? 1 : 0;
tangentPt = tangentPoints[tanIndex];
if (!COper3.right(hEnt, tangentPt, tangentPt.next(true), ccw)
&& !COper3.right(hEnt, tangentPt, tangentPt.prev(true), ccw)) break;
tangentPt = tangentPt.next(ccw);
if (db && T.update())
T.msg(
"expandHull, advance tangent line"
+ T.show(tangentPt.toPolygon(), MyColor.cDARKGRAY, -1, MARK_DISC)
+ T.show(hEnt)
+ tl(hEnt, tangentPt));
tangentPoints[tanIndex] = tangentPt;
}
if (COper3.left(hEnt, tangentPt, hEnt.next(ccw), ccw)) {
DArray dispPts = new DArray();
// delete points until cross tangent line
PtEntry next = hEnt.next(ccw);
while (true) {
PtEntry prev = next;
dispPts.add(prev);
next = prev.delete(ccw);
if (COper3.right(hEnt, tangentPt, next, ccw)) {
FPoint2 cross = MyMath.linesIntersection(hEnt, tangentPt, prev, next, null);
hEnt = hEnt.insert(new PtEntry(cross), ccw);
if (db && T.update())
T.msg(
"expandHull, clipped to shadow region"
+ tl(hEnt, tangentPt)
+ T.show(hEnt)
+ T.show(dispPts));
break;
}
}
} else {
if (db && T.update())
T.msg(
"expandHull, not dipping into shadow region"
+ T.show(hEnt.next(ccw))
+ tl(hEnt, tangentPt));
}
while (true) {
hEnt = hEnt.next(ccw);
if (COper3.left(hEnt.prev(ccw), hEnt, hEnt.next(ccw), ccw)) break;
if (db && T.update()) T.msg("skipping reflex vertex" + T.show(hEnt));
}
} while (hEnt != convHullEntry);
}