149 lines
4.6 KiB
JavaScript
149 lines
4.6 KiB
JavaScript
/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU AFFERO General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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or see http://www.gnu.org/licenses/agpl.txt.
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*/
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// OSRM routing
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// [management of routing requests and processing of responses]
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// some variables
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OSRM.GLOBALS.route = null;
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OSRM.GLOBALS.markers = null;
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OSRM.GLOBALS.dragging = null;
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OSRM.GLOBALS.dragid = null;
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OSRM.GLOBALS.pending = false;
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OSRM.GLOBALS.pendingTimer = null;
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OSRM.Routing = {
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// init routing data structures
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init: function() {
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OSRM.G.route = new OSRM.Route();
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OSRM.G.markers = new OSRM.Markers();
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},
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// -- JSONP processing --
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// process JSONP response of routing server
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timeoutRouteSimple: function() {
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OSRM.RoutingGeometry.showNA();
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OSRM.RoutingDescription.showNA( OSRM.loc("TIMED_OUT") );
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},
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timeoutRoute: function() {
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OSRM.RoutingGeometry.showNA();
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OSRM.RoutingNoNames.showNA();
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OSRM.RoutingDescription.showNA( OSRM.loc("TIMED_OUT") );
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},
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showRouteSimple: function(response) {
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if(!response)
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return;
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if( !OSRM.G.dragging ) // prevent simple routing when no longer dragging
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return;
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if( response.status == 207) {
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OSRM.RoutingGeometry.showNA();
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OSRM.RoutingDescription.showNA( OSRM.loc("YOUR_ROUTE_IS_BEING_COMPUTED") );
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} else {
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OSRM.RoutingGeometry.show(response);
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OSRM.RoutingDescription.showSimple(response);
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}
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OSRM.Routing._updateHints(response);
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if(OSRM.G.pending)
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OSRM.G.pendingTimer = setTimeout(OSRM.Routing.draggingTimeout,1);
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},
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showRoute: function(response) {
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if(!response)
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return;
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OSRM.G.response = response;
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OSRM.G.via_points = response.via_points.slice(0);
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if(response.status == 207) {
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OSRM.RoutingGeometry.showNA();
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OSRM.RoutingNoNames.showNA();
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OSRM.RoutingDescription.showNA( OSRM.loc("NO_ROUTE_FOUND") );
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} else {
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OSRM.RoutingGeometry.show(response);
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OSRM.RoutingNoNames.show(response);
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OSRM.RoutingDescription.show(response);
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OSRM.Routing._snapRoute();
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}
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OSRM.Routing._updateHints(response);
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},
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//-- main function --
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//generate server calls to query routes
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getRoute: function() {
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// if source or target are not set -> hide route
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if( OSRM.G.markers.route.length < 2 ) {
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OSRM.G.route.hideRoute();
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return;
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}
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OSRM.JSONP.call(OSRM.Routing._buildCall()+'&instructions=true', OSRM.Routing.showRoute, OSRM.Routing.timeoutRoute, OSRM.DEFAULTS.JSONP_TIMEOUT, 'route');
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},
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getDragRoute: function() {
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OSRM.G.pending = !OSRM.JSONP.call(OSRM.Routing._buildCall()+'&instructions=false', OSRM.Routing.showRouteSimple, OSRM.Routing.timeoutRouteSimple, OSRM.DEFAULTS.JSONP_TIMEOUT, 'dragging');;
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},
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draggingTimeout: function() {
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OSRM.G.markers.route[OSRM.G.dragid].hint = null;
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OSRM.Routing.getDragRoute();
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},
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_buildCall: function() {
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var source = OSRM.DEFAULTS.HOST_ROUTING_URL;
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source += '?z=' + OSRM.G.map.getZoom() + '&output=json&geomformat=cmp';
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if(OSRM.G.markers.checksum)
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source += '&checksum=' + OSRM.G.markers.checksum;
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for(var i=0,size=OSRM.G.markers.route.length; i<size; i++) {
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source += '&loc=' + OSRM.G.markers.route[i].getLat() + ',' + OSRM.G.markers.route[i].getLng();
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if( OSRM.G.markers.route[i].hint)
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source += '&hint=' + OSRM.G.markers.route[i].hint;
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}
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return source;
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},
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//-- helper functions --
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// update hints of all markers
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_updateHints: function(response) {
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var hint_locations = response.hint_data.locations;
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OSRM.G.markers.checksum = response.hint_data.checksum;
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for(var i=0; i<hint_locations.length; i++)
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OSRM.G.markers.route[i].hint = hint_locations[i];
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},
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// snap all markers to the received route
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_snapRoute: function() {
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var positions = OSRM.G.route.getPositions();
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OSRM.G.markers.route[0].setPosition( positions[0] );
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OSRM.G.markers.route[OSRM.G.markers.route.length-1].setPosition( positions[positions.length-1] );
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for(var i=0; i<OSRM.G.via_points.length; i++)
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OSRM.G.markers.route[i+1].setPosition( new L.LatLng(OSRM.G.via_points[i][0], OSRM.G.via_points[i][1]) );
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OSRM.Geocoder.updateAddress(OSRM.C.SOURCE_LABEL);
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OSRM.Geocoder.updateAddress(OSRM.C.TARGET_LABEL);
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}
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}; |