import java.applet.Applet; import java.awt.*; import java.io.*; import java.net.URL; import java.util.*; // import java.lang.Math; // ----------------------------------------------------------------------- class vector { double x,y,z; vector(double theta, double phi) { x = Math.cos(theta) * Math.cos(phi); y = Math.cos(theta) * Math.sin(phi); z = Math.sin(theta); } public vector(double lax, double lay, double laz) { x=lax; y=lay; z=laz; } vector() {x=0; y=0; z=0;} double theta() {return Math.atan2(this.z, Math.sqrt(this.x*this.x + this.y*this.y));} double phi() {return Math.atan2(this.y,this.x);} vector out(vector v){ return new vector( this.y * v.z - this.z * v.y, - this.x * v.z + this.z * v.x, this.x * v.y - this.y * v.x ); } vector times(double d) { return new vector( this.x * d, this.y * d, this.z *d); } vector min(vector v) { return new vector( this.x - v.x, this.y -v.y, this.z - v.z); } vector plus(vector v) { return new vector( this.x + v.x, this.y + v.y, this.z + v.z);} double inner(vector v){ return this.x*v.x + this.y*v.y + this.z * v.z;} vector div(double d){ return new vector( this.x/d, this.y/d, this.z/d);} double len() { return Math.sqrt(this.x*this.x + this.y*this.y + this.z*this.z);} }; // ----------------------------------------------------------------------- class location { String en,eo,ne,pl; // name in 4 languages double x,y; // position location next; // for linked list double sign(int i) { return i==0 ? 0.0 : i>0 ? 1.0 : -1.0; } location(String s1, int tx, int txm, int ty, int tym) { en=s1; eo=s1; ne=s1; pl=s1; x=tx+sign(tx)*Math.abs((double)(100*txm/60))/100; y=ty+sign(ty)*Math.abs((double)(100*tym/60))/100; next=null; } location(String s1, double tx, double ty) { en=s1; eo=s1; ne=s1; pl=s1; x=tx; y=ty; next=null; } location(String s1, String s2, String s3, String s4, int tx, int txm, int ty, int tym) { en=s1; eo=s2; ne=s3; pl=s4; x=tx+sign(tx)*Math.abs((double)(100*txm/60))/100; y=ty+sign(ty)*Math.abs((double)(100*tym/60))/100; next=null; } location(String s1, String s2, String s3, String s4, double tx, double ty) { en=s1; eo=s2; ne=s3; pl=s4; x=tx; y= ty; next=null; } String name(int lang) {switch(lang) {case 1: return en; case 2: return eo; case 3: return ne; case 4: return pl; } return en; } }; // --------------------------------------------------------------------- class locationlist { location base; location current; int size; locationlist(){base=null; current=null; size=0;} void add(location a) { if(base==null) {base=a; current=base;} else { current.next=a; current=current.next;} size++; } void sort(int lang) // n^2 method, may be Quicksort is possible. { location test,hulp,i; if(base==null) return; test=base.next; base.next=null; while(test!=null) { if(test.name(lang).compareTo(base.name(lang))<0) {hulp = test.next; test.next = base; base = test; test = hulp; } else {i=base; while(i.next!=null && test.name(lang).compareTo(i.next.name(lang))>0 ) i=i.next; hulp=test.next; test.next=i.next; i.next=test; test=hulp; } } } // sort protected void finalize() throws Throwable { location hulp; while(base!=null){ hulp=base; base=null; base=hulp.next;} } // hmm, vast niet nodig. }; // ------------------------------------------------------------------------ // ------------------------------------------------------------------------ public class mekka extends Applet { /* overrided methods: start(), init(), paint(), update(), action(), mouseDown(), mouseMove(), main(), getAppletInfo */ public String getAppletInfo() { switch(language){ default: return "`Mecca' program \n august 1997 \n Michiel Meeuwissen " + " \n You may use and copy this program freely but please " + "let me know"; } } public String[][] getParameterInfo() { String[][] en = {{"language","english/esperanto/nederlands/polski", "the language used"}, {"locations"," [min] [min] [ , ...", "Gives extra locations"} }; switch(language){ default: return en; } } // variables: public static double Degree=0.01745329251994; public static double Rad=57.29477951308; Label fromlabel, tolabel, Nfromlabel, Efromlabel, Ntolabel, Etolabel; TextField tffromx, tffromy, tftox,tftoy; Button teken, clear; Choice froms, tos; String worldfile=null; int language=0; locationlist ll=new locationlist(); Color blauw,grijs, textkl; public static final int english=1; public static final int esperanto=2; public static final int nederlands=3; public static final int polski=4; String[][] texts= { {"from","de", "van","z"}, {"to", "al", "naar","do"}, {" degrees"," gradoj", " graden"," stopnie"}, {" from east"," de oriento"," van het oosten"," zachodu"}, {"starting direction: ","ekirdirekto: ","startrichting: ","kierunek pocz\u0105tkowy: "}, {"distance: ","distanco: ", "afstand: ","dystans: "}, {"mouse: ", "muso: ", "muis: ","myszka: "}, {"draw","eku","teken", "podgl\u0105d"}, {"Mecca","Mekko","Mekka","Mekka"}, {"clear","visxu","schoon","wyczy\u015b"} }; public String text(int n) { return texts[n-1][language-1]; } static double alfa(vector S, vector D) { vector T,north,east; vector N= new vector(0,0,1); double y,x; T = (S.out(D)).out(S); north = (S.out(N)).out(S); north = north.div(north.len()); east = north.out(S); y = T.inner(north); x = T.inner(east); return Math.atan2(y,x); }; public void start() {//blauw = new Color(0x00,0x50,0x00); // meer groen nu blauw = getBackground(); //grijs = new Color(0xb0,0xb0,0xb0); grijs = getBackground(); textkl = Color.black; // setBackground(blauw); // init(); } public void init() { String s, locations; worldfile = getParameter("worldfile"); if (worldfile == null) worldfile = "world.dat"; s = getParameter("language"); if (s == null) language = english; else if (s.equalsIgnoreCase("english")) language=english; else if (s.equalsIgnoreCase("esperanto")) language=esperanto; else if (s.equalsIgnoreCase("nederlands")) language=nederlands; else if (s.equalsIgnoreCase("polski")) language=polski; else language = esperanto; locations = getParameter("locations"); StringTokenizer t = new StringTokenizer(locations," "); String hulp1, hulp2, hulp3, hulp4, hulp5; try{ while(t.hasMoreTokens()) { hulp1=t.nextToken(); hulp2=t.nextToken(); hulp3=t.nextToken(); if(t.hasMoreTokens()) hulp4=t.nextToken(); else hulp4="*"; if (hulp4.compareTo(",")!=0 && hulp4.compareTo("*")!=0) { hulp5=t.nextToken(); ll.add(new location( hulp1, Integer.valueOf(hulp2).intValue(), Integer.valueOf(hulp3).intValue(), Integer.valueOf(hulp4).intValue(), Integer.valueOf(hulp5).intValue() )); if(t.hasMoreTokens()) t.nextToken(); } else { ll.add(new location( hulp1, Double.valueOf(hulp2).doubleValue(), Double.valueOf(hulp3).doubleValue() )); } }// while }// try catch(NoSuchElementException e){} catch(NumberFormatException e){} setLayout(null); // addNotify(); fromlabel= new Label(text(1)+": ", Label.RIGHT); add(fromlabel); fromlabel.reshape(insets().left+0, insets().top + (int)(factor*180+30),50,32); tffromx = new TextField("0",7); add(tffromx); tffromx.reshape(insets().left+50, insets().top + (int)(factor*180+30),60,32); Efromlabel = new Label("\u00b0E", Label.LEFT); add(Efromlabel); Efromlabel.reshape(insets().left+110, insets().top +(int)(factor*180+30),30,32); tffromy = new TextField("0",7); add(tffromy); tffromy.reshape(insets().left+140, insets().top + (int)(factor*180+30),60,32); Nfromlabel =new Label("\u00b0N", Label.LEFT); add(Nfromlabel); Nfromlabel.reshape(insets().left+200,insets().top + (int)(factor*180+30),30,32); location il; ll.add(new location("Utrecht","Utrehxto","Utrecht","Utrecht",5.12,52.10)); ll.add(new location("Mecca","Mekko","Mekka","Mekka",39.97,21.5)); ll.add(new location("New York","Nov-Jorko","New York","Nowy Jork",-74,0,40,45)); ll.add(new location("Vancouver","Vankuvero","Vancouver", "Vancouver",-123,8,49,18)); ll.add(new location("Paris","Parizo","Parijs","Pary\u017c",2,20,48,52)); ll.add(new location("Buenos Aires","Buenos-Ajreso","Buenos Aires","Buenos Aires", -58,-30,-34,-40)); ll.add(new location("Moscow","Moskvo","Moskou","Moskwa", 37,42,55,45)); ll.add(new location("Istanbul","Istanbulo","Istanboel", "Istanbu\u0142",28,57,41,02)); ll.add(new location("Cairo","Kairo","Cairo","Kair", 31,15,30,03)); ll.add(new location("Cape town","Kab-urbo","Kaapstad","Kapsztad", 18,28,-33,-56)); ll.add(new location("Bombay","Bombajo","Bombay","Bombaj" ,72,51,18,56)); ll.add(new location("Beijing","Pekino","Peking","Pekin", 116,30,40,00)); ll.add(new location("Hong Kong","Hongkongo","Hong Kong","Hong Kong", 113,55,22,20)); ll.add(new location("Jakarta","Gxakarto","Jakarta","D\u017cakarta", 106,45,-6,-8)); ll.add(new location("Sydney","Sidnejo","Sydney","Sydney", 151,10,-33,-55)); ll.add(new location("Bogota","Bogoto","Bogota","Bogota", -74,-30,4,30)); ll.add(new location("Kinshasa","Kinsxaso","Kinshasa","Kinshasa", 15,18,-4,-18)); ll.add(new location("Tokio","Tokio","Tokio","Tokio", 139, 45,35,43)); ll.sort(language); froms = new Choice(); froms.addItem("-"); il=ll.base; while(il!=null) {froms.addItem(il.name(language)); il=il.next;} add(froms); froms.reshape(insets().left+240,insets().top + (int)(factor*180+30),120,20); tolabel= new Label(text(2)+": ", Label.RIGHT); add(tolabel); tolabel.reshape(insets().left+0, insets().top + (int)(factor*180+60),50,32); tftox = new TextField("0",7); add(tftox); tftox.reshape(insets().left+50, insets().top + (int)(factor*180+60),60,32); Etolabel = new Label("\u00b0E", Label.LEFT); add(Etolabel); Etolabel.reshape(insets().left+110, insets().top +(int)(factor*180+60),30,32); tftoy = new TextField("0",7); add(tftoy); tftoy.reshape(insets().left+140, insets().top + (int)(factor*180+60),60,32); Ntolabel =new Label("\u00b0N", Label.LEFT); add(Ntolabel); Ntolabel.reshape(insets().left+200,insets().top + (int)(factor*180+60),30,32); tos = new Choice(); tos.addItem("-"); il=ll.base; while(il!=null) {tos.addItem(il.name(language)); il=il.next;} add(tos); tos.reshape(insets().left+240,insets().top + (int)(factor*180+60),120,20); teken = new Button(text(8)); add(teken); teken.reshape(insets().left+390,insets().top + (int)(factor*180+30),70,20); clear = new Button(text(10)); add(clear); clear.reshape(insets().left+470,insets().top + (int)(factor*180+30),70,20); }// init public boolean action(Event e, Object arg) { Object target=e.target; if (target==teken) { drawfromto=true; repaint(); } if (target==clear) { from=true; drawfromto=false; redraw=true; repaint();} location il; if (target instanceof Choice) { if (target==froms) { il=ll.base; while(il!=null) { if(arg==il.name(language)) { tffromx.setText(""+il.x); tffromy.setText(""+il.y); } il=il.next; } from=false; } if (target==tos) { il=ll.base; while(il!=null) { if(arg==il.name(language)) { tftox.setText(""+il.x); tftoy.setText(""+il.y); } il=il.next; } from=true; } } if (target instanceof TextField) { if(target==tffromx || target==tffromy) if (froms.getSelectedIndex()!=0) {froms.select(0); from=false;} if(target==tftox || target==tftoy) if (tos.getSelectedIndex()!=0){tos.select(0); from=true;} } return false; } //action double mx=0,my=0,ofmx=0,ofmy=0,otmx=0,otmy=0; double fromx, fromy, tox, toy; double factor=1.5; double ox=181, oy=91; boolean from=true; boolean drawfromto=false; boolean redraw=false; String NS(double x) { if(x>0) return Math.abs(x) + "\u00b0 N"; else return Math.abs(x) + "\u00b0 S"; } String EW(double x) { if(x>0) return Math.abs(x) + "\u00b0 E"; else return Math.abs(x) + "\u00b0 W"; } public boolean mouseMove(Event event, int x, int y) {mx=Math.round(x/factor-ox); my=Math.round(oy - y/factor); repaint(); return true; } public boolean mouseDown(Event even, int x, int y) { if(x<(362*factor) && y<(182*factor)) { if(from) { fromx = x/factor-ox; fromy = oy - y/factor; tffromx.setText(""+Math.round(fromx)); tffromy.setText(""+Math.round(fromy)); if(froms.getSelectedIndex()!=0) {froms.select(0);} repaint(); } else { tox = x/factor-ox; toy = oy - y/factor; tftox.setText(""+Math.round(tox)); tftoy.setText(""+Math.round(toy)); if(tos.getSelectedIndex()!=0) {tos.select(0);} drawfromto=true; repaint(); } from = !from; } return true; } public synchronized void update(Graphics g) { g.setColor(blauw); g.fillRect(0,(int)(180*factor+7),200,15); g.setColor(textkl); if(mx<180 && my>-90) g.drawString(text(7) + EW(mx) + ", " + NS(my) + " ("+ (from ? text(1) : text(2)) +")",0,(int)(180*factor+20)); if (redraw) { g.clearRect(0, 0, (int)(factor*360) + 2, (int)(factor*180) + 2); drawmap(g); redraw=false;} if (drawfromto) { try{ fromx=java.lang.Double.valueOf(tffromx.getText()).doubleValue(); fromy=java.lang.Double.valueOf(tffromy.getText()).doubleValue(); tox=java.lang.Double.valueOf(tftox.getText()).doubleValue(); toy=java.lang.Double.valueOf(tftoy.getText()).doubleValue(); } catch(java.lang.NumberFormatException ee){} double distance,distancekm; distance=Math.acos((new vector(fromy*Degree,fromx*Degree)).inner( new vector(toy*Degree,tox*Degree))) * Rad; distancekm=distance / 360 * 40057; g.setColor(blauw); g.fillRect(0,(int)(180*factor+105),400,60); g.setColor(Color.red); g.drawString(text(5) + Math.round( (alfa(new vector(fromy*Degree,fromx*Degree), new vector(toy*Degree,tox*Degree)) *Rad) ) + text(3) + text(4), 0,(int)(180*factor+120)); g.drawString(text(6) + Math.round(distance) + text(3) + "= " + Math.round(distancekm) + " km", 0,(int)(180*factor+140)); double xx,yy,oxx,oyy,a; xx=fromx; yy=fromy; oxx=xx; oyy=yy; double acute=0.1; if(!(fromx==tox && fromy==toy)) for(double i=0; i<=distance; i+=acute) // stop criterium moet wat slimmer nog. { a=alfa(new vector(yy*Degree,xx*Degree), new vector(toy*Degree,tox*Degree) ); xx+=acute*Math.cos(a)/Math.cos(yy*Degree); // dit is niet goed. yy+=acute*Math.sin(a); if(xx>180) {xx-=360;oxx=xx;} if(xx<-180){xx+=360;oxx=xx;} g.drawLine((int)(factor*(oxx +ox)),(int)(factor*(oy-oyy)) ,(int)(factor*(xx +ox)),(int)(factor*(oy-yy)) ); oxx=xx; oyy=yy; } drawfromto=false; } } public void drawmap(Graphics g) {g.setColor(grijs); g.fillRect(0, 0, (int)(factor*360) + 2, (int)(factor*180) + 2); g.draw3DRect(0, 0, (int)(factor*360) + 2, (int)(factor*180) + 2, true); Color groen = new Color(0,100,0); try{ InputStream is = null; is = new URL(getDocumentBase(), worldfile).openStream(); StreamTokenizer st = new StreamTokenizer(new BufferedInputStream(is)); st.eolIsSignificant(true); st.commentChar('#'); st.commentChar('%'); double theta, phi, otheta=0, ophi=0; boolean point=true; for(int tokenType = st.nextToken(); tokenType != StreamTokenizer.TT_EOF; tokenType = st.nextToken()) { switch(tokenType) { case StreamTokenizer.TT_NUMBER: theta=st.nval; tokenType=st.nextToken(); if (tokenType != StreamTokenizer.TT_NUMBER) { g.drawString("Error in file!",0,10);} else { phi = st.nval; if(point) { point=false; otheta=theta; ophi=phi; } else { g.setColor(groen); g.drawLine((int)(factor*(otheta+ox)),(int)(factor*(oy-ophi)), (int)(factor*(theta+ox)),(int)(factor*(oy-phi)) ); otheta=theta; ophi=phi; } } break; case StreamTokenizer.TT_EOL: tokenType = st.nextToken(); if (tokenType == StreamTokenizer.TT_EOL) { point=true;} else{st.pushBack();} break; } } } catch (java.net.MalformedURLException e) {} catch (IOException e) {} }//drawmap public void paint(Graphics g) { drawmap(g); } // paint public static void main(String[] args) { vector Mekko= new vector(21.5 * Degree, 39.97 * Degree); vector Utrehxto = new vector(52.10 * Degree, 5.12 * Degree); System.out.println("hoi!"); System.out.println("utrecht -> mekka: " + alfa(Utrehxto, Mekko) * Rad); StringTokenizer t = new StringTokenizer("Amsterdam 10 30 34 40"," "); String hulp1, hulp2, hulp3, hulp4, hulp5; while(t.hasMoreTokens()) { hulp1=t.nextToken(); hulp2=t.nextToken(); hulp3=t.nextToken(); if(t.hasMoreTokens()) hulp4=t.nextToken(); else hulp4="*"; if (hulp4.compareTo(",")!=0 && hulp4.compareTo("*")!=0) { hulp5=t.nextToken(); System.out.println(hulp1); System.out.println(hulp2); System.out.println(hulp3); System.out.println(hulp4); System.out.println(hulp5); if(t.hasMoreTokens()) t.nextToken(); } else {System.out.println(hulp1); System.out.println(hulp2); System.out.println(hulp3); } } } }// mekka