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starting to reverse geocoding

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This commit is contained in:
DennisSchiefer 2012-03-13 17:32:18 +01:00
parent 4918549bac
commit 805402b230
4 changed files with 73 additions and 3 deletions
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4
WebContent/OSRM.JSONP.js
View File

@ -9,8 +9,8 @@ OSRM.JSONP = {
TIMEOUT: OSRM.DEFAULTS.JSONP_TIMEOUT,
late: function() { console.log("reply too late");},
empty: function() { console.log("empty callback");},
late: function() { },//console.log("reply too late");},
empty: function() { },//console.log("empty callback");},
call: function(source, callback_function, timeout_function, timeout, id) {
// only one active JSONP call per id

61
WebContent/geocoder.js
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@ -1,9 +1,70 @@
// some constants
OSRM.GEOCODE_POST = 'http://nominatim.openstreetmap.org/search?format=json';
OSRM.REVERSE_GEOCODE_POST = 'http://nominatim.openstreetmap.org/reverse?format=json';
OSRM.SOURCE_MARKER_LABEL = "source";
OSRM.TARGET_MARKER_LABEL = "target";
// update locations in input boxes
function updateLocations() {
if( my_markers.route[0] && my_markers.route[0].label == OSRM.SOURCE_MARKER_LABEL) {
document.getElementById("input-source-name").value = my_markers.route[0].getPosition().lat.toFixed(6) + ", " + my_markers.route[0].getPosition().lng.toFixed(6);
callReverseGeocoder("source", my_markers.route[0].getPosition().lat, my_markers.route[0].getPosition().lng);
OSRM.debug.log("[call1] reverse geocoder");
}
// if( my_markers.route[my_markers.route.length-1] && my_markers.route[ my_markers.route.length-1 ].label == OSRM.TARGET_MARKER_LABEL) {
// document.getElementById("input-target-name").value = my_markers.route[my_markers.route.length-1].getPosition().lat.toFixed(6) + ", " + my_markers.route[my_markers.route.length-1].getPosition().lng.toFixed(6);
// callReverseGeocoder("target", my_markers.route[my_markers.route.length-1].getPosition().lat, my_markers.route[my_markers.route.length-1].getPosition().lng);
// }
}
function timeout_ReverseGeocoder() {
OSRM.debug.log("[timeout] reverse geocoder");
}
//prepare request and call reverse geocoder
function callReverseGeocoder(marker_id, lat, lon) {
//build request
if (marker_id == OSRM.SOURCE_MARKER_LABEL) {
var src= OSRM.REVERSE_GEOCODE_POST + "&lat=" + lat + "&lon=" + lon;
OSRM.JSONP.call( src, showReverseGeocoderResults_Source, timeout_ReverseGeocoder, OSRM.JSONP.TIMEOUT, "reverse_geocoder_source" );
OSRM.debug.log("[call2] reverse geocoder");
} else if (marker_id == OSRM.TARGET_MARKER_LABEL) {
var src = OSRM.REVERSE_GEOCODE_POST + "&lat=" + lat + "&lon=" + lon;
OSRM.JSONP.call( src, showReverseGeocoderResults_Target, timeout_ReverseGeocoder, OSRM.JSONP.TIMEOUT, "reverse_geocoder_target" );
}
}
//processing JSONP response of reverse geocoder
//(with wrapper functions for source/target jsonp)
function showReverseGeocoderResults_Source(response) { showReverseGeocoderResults(OSRM.SOURCE_MARKER_LABEL, response); }
function showReverseGeocoderResults_Target(response) { showReverseGeocoderResults(OSRM.TARGET_MARKER_LABEL, response); }
function showReverseGeocoderResults(marker_id, response) {
OSRM.debug.log("[inner] reverse geocoder");
if(response){
if(response.address == undefined)
return;
var address = "";
if( response.address.road)
address += response.address.road;
if( response.address.city) {
if( response.address.road)
address += ", ";
address += response.address.city;
}
if( address == "" )
return;
if(marker_id == OSRM.SOURCE_MARKER_LABEL)
document.getElementById("input-source-name").value = address;
else if(marker_id == OSRM.TARGET_MARKER_LABEL)
document.getElementById("input-target-name").value = address;
}
}
// prepare request and call geocoder
function callGeocoder(marker_id, query) {
//build request

2
WebContent/main.html
View File

@ -23,7 +23,7 @@
<script src="OSRM.base.js"></script>
<script src="OSRM.config.js"></script>
<!-- <script defer="defer" src="OSRM.debug.js"></script> -->
<script defer="defer" src="OSRM.debug.js"></script>
<script src="OSRM.Browser.js"></script>
<script src="OSRM.GUI.js"></script>

9
WebContent/routing.js
View File

@ -85,6 +85,7 @@ function showRoute(response) {
snapRoute();
}
updateHints(response);
updateLocations();
}
function showNoRouteGeometry() {
@ -346,6 +347,12 @@ function positionsToInput() {
}
function reverseRouting() {
// invert input boxes
var tmp = document.getElementById("input-source-name").value;
document.getElementById("input-source-name").value = document.getElementById("input-target-name").value;
document.getElementById("input-target-name").value = tmp;
// invert route
my_markers.route.reverse();
if(my_markers.route.length == 1) {
if(my_markers.route[0].label == OSRM.TARGET_MARKER_LABEL) {
@ -362,6 +369,8 @@ function reverseRouting() {
my_markers.route[my_markers.route.length-1].label = OSRM.TARGET_MARKER_LABEL;
my_markers.route[my_markers.route.length-1].marker.setIcon( new L.Icon('images/marker-target.png') );
}
// recompute route
getRoute(OSRM.FULL_DESCRIPTION);
my_markers.highlight.hide();
}