multiple markers on google maps from xml file

Question

I am so close to get this working

My question is: how can i make the google maps read the data.xml file that is stored on my ftp server?

Th

Answer 1

There are three standard formats for "mapping" XML (XML stands for eXtensible Markup Language, you can do with it what you want).

• KML - content of a element, multiple values are possible separated by strings.

    name
    go 0.3 mi
    
        -103.17619,44.09972,0
    

example parser - geoxml3

• latitude/longitude attributes of a marker element (used in and described in Mike Williams' Google Maps Javascript API v2 tutorial)

Parse using code like you have posted in your question:

var markers = data.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
  var latlng = new google.maps.LatLng(parseFloat(markers[i].getAttribute("lat")),
                              parseFloat(markers[i].getAttribute("lng")));
  var marker = new google.maps.Marker({position: latlng, map: map});
 }

• latitude/longitude content in separate elements

  44.09972
  -103.17619

Parse by getting the content of the and elements:

var markers = data.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
  var latlng = new google.maps.LatLng(parseFloat(nodeValue(markers[i].getElementByTagName("latitude")[0])),
                                      parseFloat(nodeValue(markers[i].getElementByTagName("longitude")[0])));
  var marker = new google.maps.Marker({position: latlng, map: map});
}

from geoxml3:

//nodeValue: Extract the text value of a DOM node, with leading and trailing whitespace trimmed
function nodeValue (node) {
  var retStr="";
  if (!node) {
    return '';
  }
  if(node.nodeType==3||node.nodeType==4||node.nodeType==2){
    retStr+=node.nodeValue;
  } else if(node.nodeType==1||node.nodeType==9||node.nodeType==11){
    for(var i=0;i

question on SO about how to do this using jquery - example from that question

xml format parsed:

  44.09972
  -103.17619