Created
March 29, 2011 17:02
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Convert a remote Google KML file to Appcelerator MapView Routes
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| var url = "http://maps.google.com/maps/ms?ie=UTF&msa=0&msid=217110902183005084784.00049d962454fabcabdc2&output=kml"; | |
| //Add routes from a remote KML file to one map | |
| goog.maps.kml.addRoutesToMap(mySingleMap, url); | |
| //Multiple Maps | |
| goog.maps.kml.addRoutesToMap([myGoogleMap1, myGoogleMap2], url); |
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| var goog = { | |
| maps: { | |
| kml: {} | |
| } | |
| }; | |
| (function(){ | |
| goog.maps.kml.addRoutesToMap = function(maps, url){ | |
| var xhr = Titanium.Network.createHTTPClient(); | |
| xhr.open('GET', url); | |
| xhr.onload = function(){ | |
| var kml = goog.maps.kml.parse(this.responseXML); | |
| if( typeof(maps) && !(maps.length > 0) ){ maps = [maps]; } | |
| for(var m=0;m<maps.length;m++){ | |
| goog.maps.kml.addRoutes(maps[m], kml); | |
| } | |
| }; | |
| xhr.send(); | |
| }; | |
| goog.maps.kml.addRoutes = function(map, kml){ | |
| var route, line, points, coords, coords_length, loc, styleId; | |
| for(var pm=0; pm<kml.placeMarksLength; pm++){ | |
| points = []; | |
| placeMark = kml.placeMarks.item(pm); | |
| line = placeMark.getElementsByTagName('LineString').item(0); | |
| coords = line.getElementsByTagName('coordinates').item(0).text.split(" "); | |
| coords_length = coords.length; | |
| for(var cc=0; cc<coords_length; cc++){ | |
| loc = coords[cc].split(','); | |
| if(loc[0] && loc[1]) { | |
| points.push({latitude: loc[1], longitude: loc[0]}); | |
| } | |
| } | |
| styleId = /#(.*)/.exec(placeMark.getElementsByTagName('styleUrl').item(0).text)[1]; | |
| route = { | |
| name: placeMark.getElementsByTagName('name').item(0).text, | |
| points: points, | |
| color: '#' + kml.styles[styleId].color,//make sure this is a websafe color or else the color will be picked for you. | |
| width: kml.styles[styleId].width | |
| }; | |
| map.addRoute(route); | |
| } | |
| }; | |
| goog.maps.kml.parse = function(xml){ | |
| var kml = { | |
| xml: xml, | |
| styles: goog.maps.kml.getStyles(xml), | |
| placeMarks: goog.maps.kml.getPlaceMarks(xml) | |
| }; | |
| kml.stylesLength = kml.styles.length; | |
| kml.placeMarksLength = kml.placeMarks.length; | |
| return kml; | |
| }; | |
| goog.maps.kml.getStyles = function(xml){ | |
| var styles = xml.documentElement.getElementsByTagName("Style"); | |
| var stylesLength = styles.length; | |
| var style, lineStyle, params; | |
| var stylesCollection = {}; | |
| for(var i=0;i<stylesLength;i++){ | |
| lineStyle = styles.item(i).getElementsByTagName('LineStyle').item(0); | |
| style = styles.item(i).attributes.item(0).text; //gets the ID attribute | |
| stylesCollection[style] = { | |
| color: lineStyle.getElementsByTagName('color').item(0).text, | |
| width: lineStyle.getElementsByTagName('width').item(0).text | |
| }; | |
| } | |
| return stylesCollection; | |
| }; | |
| goog.maps.kml.getPlaceMarks = function(xml){ | |
| return xml.documentElement.getElementsByTagName("Placemark"); | |
| }; | |
| })(); |
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Awesone Nathan! Good job.