/* osm.org routing interface See also: https://github.com/apmon/openstreetmap-website/tree/routing2 https://github.com/apmon/openstreetmap-website/compare/routing2 https://github.com/apmon/openstreetmap-website/blob/9755c3ae0a8d0684d43760f91dc864ff42d8477a/app/views/routing/start.js.erb *** translation (including all alerts and presentation) *** export GPX *** URL history (or do we consciously not want to support that?) *** spinner when waiting for result (beneath 'Go' button?) *** add YOURS engine */ var TURN_INSTRUCTIONS=[] var ROUTING_POLYLINE={ color: '#03f', opacity: 0.3, weight: 10 }; OSM.RoutingEngines={ list: [] // common functions and constants, e.g. OSRM parser, can go here }; OSM.Routing=function(map,name,jqSearch) { var r={}; TURN_INSTRUCTIONS=["", I18n.t('javascripts.directions.instructions.continue_on'), // 1 I18n.t('javascripts.directions.instructions.slight_right'), // 2 I18n.t('javascripts.directions.instructions.turn_right'), // 3 I18n.t('javascripts.directions.instructions.sharp_right'), // 4 I18n.t('javascripts.directions.instructions.uturn'), // 5 I18n.t('javascripts.directions.instructions.sharp_left'), // 6 I18n.t('javascripts.directions.instructions.turn_left'), // 7 I18n.t('javascripts.directions.instructions.slight_left'), // 8 I18n.t('javascripts.directions.instructions.via_point'), // 9 I18n.t('javascripts.directions.instructions.follow'), // 10 I18n.t('javascripts.directions.instructions.roundabout'), // 11 I18n.t('javascripts.directions.instructions.leave_roundabout'), // 12 I18n.t('javascripts.directions.instructions.stay_roundabout'), // 13 I18n.t('javascripts.directions.instructions.start'), // 14 I18n.t('javascripts.directions.instructions.destination'), // 15 I18n.t('javascripts.directions.instructions.against_oneway'), // 16 I18n.t('javascripts.directions.instructions.end_oneway')] // 17 r.map=map; // Leaflet map r.name=name; // global variable name of this instance (needed for JSONP) r.jqSearch=jqSearch; // JQuery object for search panel r.route_from=null; // null=unset, false=awaiting response, [lat,lon]=geocoded r.route_to=null; // | r.awaitingGeocode=false;// true if the user has requested a route, but we're waiting on a geocode result r.awaitingRoute=false; // true if we've asked the engine for a route and are waiting to hear back r.viaPoints=[]; // not yet used r.polyline=null; // Leaflet polyline object r.popup=null; // Leaflet popup object r.marker_from=null; // Leaflet from marker r.marker_to=null; // Leaflet to marker r.chosenEngine=null; // currently selected routing engine var icon_from = L.icon({ iconUrl: <%= asset_path('marker-green.png').to_json %>, iconSize: [25, 41], iconAnchor: [12, 41], popupAnchor: [1, -34], shadowUrl: <%= asset_path('images/marker-shadow.png').to_json %>, shadowSize: [41, 41] }); var icon_to = L.icon({ iconUrl: <%= asset_path('marker-red.png').to_json %>, iconSize: [25, 41], iconAnchor: [12, 41], popupAnchor: [1, -34], shadowUrl: <%= asset_path('images/marker-shadow.png').to_json %>, shadowSize: [41, 41] }); // Geocoding r.geocode=function(id,event) { var _this=this; var field=event.target; var v=event.target.value; // *** do something if v=='' var querystring = '<%= NOMINATIM_URL %>search?q=' + encodeURIComponent(v) + '&format=json'; // *** &accept-language=<%#= request.user_preferred_languages.join(',') %> // *** prefer current viewport r[field.id]=false; $.getJSON(querystring, function(json) { _this._gotGeocode(json,field); }); }; r._gotGeocode=function(json,field) { if (json.length==0) { alert("Sorry, couldn't find that place."); // *** internationalise r[field.id]=null; return; } field.value=json[0].display_name; var lat=Number(json[0].lat), lon=Number(json[0].lon); r[field.id]=[lat,lon]; r.updateMarker(field.id); if (r.awaitingGeocode) { r.awaitingGeocode=false; r.requestRoute(true); } }; // Drag and drop markers r.handleDrop=function(e) { var id=e.originalEvent.dataTransfer.getData('id'); var ll=r.map.mouseEventToLatLng(e.originalEvent); // *** ^^^ this is slightly off - we need to work out the latLng of the tip r.createMarker(ll,id); r.setNumericInput(ll,id); r.requestRoute(true); // update to/from field }; r.createMarker=function(latlng,id) { if (r[id]) r.map.removeLayer(r[id]); r[id]=L.marker(latlng, { icon: id=='marker_from' ? icon_from : icon_to, draggable: true, name: id }).addTo(r.map); r[id].on('drag',r.markerDragged); r[id].on('dragend',r.markerDragged); }; // Update marker from geocoded route input r.updateMarker=function(id) { var m=id.replace('route','marker'); if (!r[m]) { r.createMarker(r[id],m); return; } var ll=r[m].getLatLng(); if (ll.lat!=r[id][0] || ll.lng!=r[id][1]) { r.createMarker(r[id],m); } }; // Marker has been dragged r.markerDragged=function(e) { if (e.type=='drag' && !r.chosenEngine.draggable) return; if (e.type=='drag' && r.awaitingRoute) return; r.setNumericInput(e.target.getLatLng(), e.target.options.name); r.requestRoute(e.type=='dragend'); }; // Set a route input field to a numeric value r.setNumericInput=function(ll,id) { var routeid=id.replace('marker','route'); r[routeid]=[ll.lat,ll.lng]; $("[name="+routeid+"]:visible").val(Math.round(ll.lat*10000)/10000+" "+Math.round(ll.lng*10000)/10000); } // Route-fetching UI r.requestRoute=function(isFinal) { if (r.route_from && r.route_to) { r.awaitingRoute=true; r.chosenEngine.getRoute(isFinal,[r.route_from,r.route_to]); // then, when the route has been fetched, it'll call the engine's gotRoute function } else if (r.route_from==false || r.route_to==false) { // we're waiting for a Nominatim response before we can request a route r.awaitingGeocode=true; } }; // Take an array of Leaflet LatLngs and draw it as a polyline r.setPolyline=function(line) { if (r.polyline) map.removeLayer(r.polyline); r.polyline=L.polyline(line, ROUTING_POLYLINE).addTo(r.map); // r.map.fitBounds(r.polyline.getBounds()); // *** ^^^ we only want to do this for geocode-originated routes }; // Take directions and write them out // data = { steps: array of [latlng, sprite number, instruction text, distance in metres] } // sprite numbers equate to OSRM's route_instructions turn values // *** translations? r.setItinerary=function(data) { // Create base table $("#content").removeClass("overlay-sidebar"); $('#sidebar_content').empty(); var html='

' + I18n.t('javascripts.directions.directions') + '

'.replace(/~/g,"'"); html+=""; $('#sidebar_content').html(html); // Add each row var cumulative=0; for (var i=0; i"); row.append("
"); row.append(""+step[2]); row.append(""+dist); with ({ num: i, ll: step[0] }) { row.on('click',function(e) { r.clickTurn(num, ll); }); }; $('#turnbyturn').append(row); cumulative+=step[3]; } $('#sidebar_content').append('

' + r.chosenEngine.creditline + '

'); }; r.clickTurn=function(num,latlng) { r.popup=L.popup().setLatLng(latlng).setContent("

"+(num+1)+"

").openOn(r.map); }; // Close all routing UI r.close=function() { $("#content").addClass("overlay-sidebar"); r.route_from=r.route_to=null; $(".query_wrapper.routing input").val(""); var remove=['polyline','popup','marker_from','marker_to']; for (var i=0; ib.name; }); var select=r.jqSearch.find('select.routing_engines'); for (var i=0; i"+I18n.t(list[i].name)+""); } r.engines=list; r.chosenEngine=list[0]; // default to first engine // Choose an engine on dropdown change r.selectEngine=function(e) { r.chosenEngine=r.engines[e.target.selectedIndex]; if (r.polyline){ // and if a route is currently showing, must also refresh, else confusion r.requestRoute(true); } }; // Choose an engine by name r.chooseEngine=function(name) { for (var i=0; i