2 osm.org routing interface
5 var TURN_INSTRUCTIONS=[]
13 var ROUTING_POLYLINE_HIGHLIGHT={
24 OSM.Routing=function(map,name,jqSearch) {
27 TURN_INSTRUCTIONS=["",
28 I18n.t('javascripts.directions.instructions.continue_on'), // 1
29 I18n.t('javascripts.directions.instructions.slight_right'), // 2
30 I18n.t('javascripts.directions.instructions.turn_right'), // 3
31 I18n.t('javascripts.directions.instructions.sharp_right'), // 4
32 I18n.t('javascripts.directions.instructions.uturn'), // 5
33 I18n.t('javascripts.directions.instructions.sharp_left'), // 6
34 I18n.t('javascripts.directions.instructions.turn_left'), // 7
35 I18n.t('javascripts.directions.instructions.slight_left'), // 8
36 I18n.t('javascripts.directions.instructions.via_point'), // 9
37 I18n.t('javascripts.directions.instructions.follow'), // 10
38 I18n.t('javascripts.directions.instructions.roundabout'), // 11
39 I18n.t('javascripts.directions.instructions.leave_roundabout'), // 12
40 I18n.t('javascripts.directions.instructions.stay_roundabout'), // 13
41 I18n.t('javascripts.directions.instructions.start'), // 14
42 I18n.t('javascripts.directions.instructions.destination'), // 15
43 I18n.t('javascripts.directions.instructions.against_oneway'), // 16
44 I18n.t('javascripts.directions.instructions.end_oneway')] // 17
46 r.map=map; // Leaflet map
47 r.name=name; // global variable name of this instance (needed for JSONP)
48 r.jqSearch=jqSearch; // JQuery object for search panel
50 r.route_from=null; // null=unset, false=awaiting response, [lat,lon]=geocoded
52 r.awaitingGeocode=false;// true if the user has requested a route, but we're waiting on a geocode result
53 r.awaitingRoute=false; // true if we've asked the engine for a route and are waiting to hear back
54 r.dragging=false; // true if the user is dragging a start/end point
55 r.viaPoints=[]; // not yet used
57 r.polyline=null; // Leaflet polyline object
58 r.popup=null; // Leaflet popup object
59 r.marker_from=null; // Leaflet from marker
60 r.marker_to=null; // Leaflet to marker
62 r.chosenEngine=null; // currently selected routing engine
64 var icon_from = L.icon({
65 iconUrl: <%= asset_path('marker-green.png').to_json %>,
68 popupAnchor: [1, -34],
69 shadowUrl: <%= asset_path('images/marker-shadow.png').to_json %>,
72 var icon_to = L.icon({
73 iconUrl: <%= asset_path('marker-red.png').to_json %>,
76 popupAnchor: [1, -34],
77 shadowUrl: <%= asset_path('images/marker-shadow.png').to_json %>,
83 r.geocode=function(id,event) { var _this=this;
84 var field=event.target;
85 var v=event.target.value;
86 var querystring = '<%= NOMINATIM_URL %>search?q=' + encodeURIComponent(v) + '&format=json';
87 // *** &accept-language=<%#= request.user_preferred_languages.join(',') %>
89 $.getJSON(querystring, function(json) { _this._gotGeocode(json,field); });
92 r._gotGeocode=function(json,field) {
94 alert(I18n.t('javascripts.directions.errors.no_place'));
98 field.value=json[0].display_name;
99 var lat=Number(json[0].lat), lon=Number(json[0].lon);
100 r[field.id]=[lat,lon];
101 r.updateMarker(field.id);
102 if (r.awaitingGeocode) {
103 r.awaitingGeocode=false;
104 r.requestRoute(true, true);
108 // Drag and drop markers
110 r.handleDrop=function(e) {
111 var oe=e.originalEvent;
112 var id=oe.dataTransfer.getData('id');
113 var pt=L.DomEvent.getMousePosition(oe,map.getContainer()); // co-ordinates of the mouse pointer at present
114 pt.x+=Number(oe.dataTransfer.getData('offsetX'));
115 pt.y+=Number(oe.dataTransfer.getData('offsetY'));
116 var ll=map.containerPointToLatLng(pt);
117 r.createMarker(ll,id);
118 r.setNumericInput(ll,id);
119 r.requestRoute(true, false);
120 // update to/from field
122 r.createMarker=function(latlng,id) {
123 if (r[id]) r.map.removeLayer(r[id]);
124 r[id]=L.marker(latlng, {
125 icon: id=='marker_from' ? icon_from : icon_to,
129 r[id].on('drag',r.markerDragged);
130 r[id].on('dragend',r.markerDragged);
132 // Update marker from geocoded route input
133 r.updateMarker=function(id) {
134 var m=id.replace('route','marker');
135 if (!r[m]) { r.createMarker(r[id],m); return; }
136 var ll=r[m].getLatLng();
137 if (ll.lat!=r[id][0] || ll.lng!=r[id][1]) {
138 r.createMarker(r[id],m);
141 // Marker has been dragged
142 r.markerDragged=function(e) {
143 r.dragging=(e.type=='drag'); // true for drag, false for dragend
144 if (r.dragging && !r.chosenEngine.draggable) return;
145 if (r.dragging && r.awaitingRoute) return;
146 r.setNumericInput(e.target.getLatLng(), e.target.options.name);
147 r.requestRoute(!r.dragging, false);
149 // Set a route input field to a numeric value
150 r.setNumericInput=function(ll,id) {
151 var routeid=id.replace('marker','route');
152 r[routeid]=[ll.lat,ll.lng];
153 $("[name="+routeid+"]:visible").val(Math.round(ll.lat*10000)/10000+" "+Math.round(ll.lng*10000)/10000);
158 r.requestRoute=function(isFinal, updateZoom) {
159 if (r.route_from && r.route_to) {
160 $(".query_wrapper.routing .spinner").show();
161 r.awaitingRoute=true;
162 r.chosenEngine.getRoute(isFinal,[r.route_from,r.route_to]);
164 r.map.fitBounds(L.latLngBounds([r.route_from, r.route_to]).pad(0.05));
166 // then, when the route has been fetched, it'll call the engine's gotRoute function
167 } else if (r.route_from==false || r.route_to==false) {
168 // we're waiting for a Nominatim response before we can request a route
169 r.awaitingGeocode=true;
173 // Take an array of Leaflet LatLngs and draw it as a polyline
174 r.setPolyline=function(line) {
175 if (r.polyline) map.removeLayer(r.polyline);
176 r.polyline=L.polyline(line, ROUTING_POLYLINE).addTo(r.map);
179 // Take directions and write them out
180 // data = { steps: array of [latlng, sprite number, instruction text, distance in metres, highlightPolyline] }
181 // sprite numbers equate to OSRM's route_instructions turn values
182 r.setItinerary=function(data) {
184 $("#content").removeClass("overlay-sidebar");
185 $('#sidebar_content').empty();
186 var html=('<h2><a class="geolink" href="#" onclick="$(~.close_directions~).click();return false;">' +
187 '<span class="icon close"></span></a>' + I18n.t('javascripts.directions.directions') +
188 '</h2><p id="routing_summary">' +
189 I18n.t('javascripts.directions.distance') + ': ' + r.formatDistance(data.distance)+ '. ' +
190 I18n.t('javascripts.directions.time' ) + ': ' + r.formatTime(data.time) + '.</p>' +
191 '<table id="turnbyturn" />').replace(/~/g,"'");
192 $('#sidebar_content').html(html);
195 for (var i=0; i<data.steps.length; i++) {
196 var step=data.steps[i];
199 if (dist<5) { dist=""; }
200 else if (dist<200) { dist=Math.round(dist/10)*10+"m"; }
201 else if (dist<1500) { dist=Math.round(dist/100)*100+"m"; }
202 else if (dist<5000) { dist=Math.round(dist/100)/10+"km"; }
203 else { dist=Math.round(dist/1000)+"km"; }
205 var row=$("<tr class='turn'/>");
206 row.append("<td class='direction i"+step[1]+"'> ");
207 row.append("<td class='instruction'>"+step[2]);
208 row.append("<td class='distance'>"+dist);
209 with ({ instruction: step[2], ll: step[0], lineseg: step[4] }) {
210 row.on('click',function(e) { r.clickTurn(instruction, ll); });
211 row.hover(function(e){r.highlightSegment(lineseg);}, function(e){r.unhighlightSegment();});
213 $('#turnbyturn').append(row);
216 $('#sidebar_content').append('<p id="routing_credit">' + r.chosenEngine.creditline + '</p>');
219 r.clickTurn=function(instruction,latlng) {
220 r.popup=L.popup().setLatLng(latlng).setContent("<p>"+instruction+"</p>").openOn(r.map);
222 r.highlightSegment=function(lineseg){
223 if (r.highlighted) map.removeLayer(r.highlighted);
224 r.highlighted=L.polyline(lineseg, ROUTING_POLYLINE_HIGHLIGHT).addTo(r.map);
226 r.unhighlightSegment=function(){
227 if (r.highlighted) map.removeLayer(r.highlighted);
229 r.formatDistance=function(m) {
230 if (m < 1000 ) { return Math.round(m) + "m"; }
231 else if (m < 10000) { return (m/1000.0).toFixed(1) + "km"; }
232 else { return Math.round(m / 1000) + "km"; }
234 r.formatTime=function(s) {
235 var d=new Date(s*1000); var h=d.getHours(); var m=d.getMinutes();
236 return h+":"+(m<10 ? '0' : '')+m;
239 // Close all routing UI
242 $("#content").addClass("overlay-sidebar");
243 r.route_from=r.route_to=null;
244 $(".query_wrapper.routing input").val("");
245 var remove=['polyline','popup','marker_from','marker_to'];
246 for (var i=0; i<remove.length; i++) {
247 if (r[remove[i]]) { map.removeLayer(r[remove[i]]); r[remove[i]]=null; }
251 // Routing engine handling
254 var list=OSM.RoutingEngines.list;
255 list.sort(function(a,b) { return I18n.t(a.name)>I18n.t(b.name); });
256 var select=r.jqSearch.find('select.routing_engines');
257 for (var i=0; i<list.length; i++) {
258 // Set up JSONP callback
260 list[num].requestJSONP=function(url) {
261 var script = document.createElement('script');
262 script.src = url+r.name+".gotRoute"+num;
263 document.body.appendChild(script);
265 list[num].requestCORS=function(url) {
266 $.ajax({ url: url, method: "GET", data: {}, dataType: 'json', success: r['gotRoute'+num] });
268 r['gotRoute'+num]=function(data) {
269 r.awaitingRoute=false;
270 $(".query_wrapper.routing .spinner").hide();
271 if (!list[num].gotRoute(r,data)) {
274 map.removeLayer(r.polyline);
277 if (!r.dragging) { alert(I18n.t('javascripts.directions.errors.no_route')); }
281 select.append("<option value='"+i+"'>"+I18n.t(list[i].name)+"</option>");
284 r.chosenEngine=list[0]; // default to first engine
286 // Choose an engine on dropdown change
287 r.selectEngine=function(e) {
288 r.chosenEngine=r.engines[e.target.selectedIndex];
289 if (r.polyline){ // and if a route is currently showing, must also refresh, else confusion
290 r.requestRoute(true, false);
293 // Choose an engine by name
294 r.chooseEngine=function(name) {
295 for (var i=0; i<r.engines.length; i++) {
296 if (r.engines[i].name==name) {
297 r.chosenEngine=r.engines[i];
298 r.jqSearch.find('select.routing_engines').val(i);