topic Re: KML linkInfo ex. name snippet in ArcGIS JavaScript Maps SDK Questions

KML linkInfo ex. name snippet

NahmLee — Thu, 06 Oct 2011 22:00:09 GMT

Q. How to get "name" or "snippet" from KML file?
ex. ESRI ex. name should be WY.kml.

http://help.arcgis.com/en/webapi/javascript/arcgis/help/jsapi/kmllayer.htm#featureInfos

<Object> linkInfo
A link info object with properties that describe the network link. The object has the following properties:

{
"id": <Number>,
"name": <String>,
"description": <String>,
"snippet": <String>,
"visibility": <Number>
"refreshMode": <String>,
"refreshInterval": <Number>,
"viewRefreshMode": <String>,
"viewRefreshTime": <Number>,
"viewBoundScale": <Number>,
"viewFormat": <String>,
"httpQuery": <String>
}

ESRI ex. http://help.arcgis.com/en/webapi/javascript/arcgis/help/jssamples_start.htm?KMLLayer

Thanks,

Re: KML linkInfo ex. name snippet

derekswingley1 — Sun, 12 Dec 2021 03:49:34 GMT

Once your KMLLayer loads, call getLayers() on it. This will return the feature layers that make up the KMLLayer (one for each type of geometry present for a possible total of three- points, lines, polygons). Once you have you feature layer, loop through the graphics and look at the attributes.name property for each graphic.

If you run this JS on the simple KMLLayer sample:

map.getLayer(map.graphicsLayerIds[0]).graphics[0].attributes.name

It will print "Wyoming(WY)"

Re: KML linkInfo ex. name snippet

NahmLee — Thu, 06 Oct 2011 22:20:38 GMT

I forgot to link my code.
https://s3.amazonaws.com/Nahm/KML/KML4.html

Re: KML linkInfo ex. name snippet

derekswingley1 — Thu, 06 Oct 2011 22:24:25 GMT

My previous comment still applies...give it a try and let us know if you have any issues.

Re: KML linkInfo ex. name snippet

NahmLee — Fri, 07 Oct 2011 17:25:03 GMT

I need to study more because didn't get it yet.

Re: KML linkInfo ex. name snippet

NahmLee — Fri, 07 Oct 2011 19:41:42 GMT

It works in a strange way but I think it was an accident...

https://s3.amazonaws.com/Nahm/KML/KML4.html

function NameKML(){
var folders = kml.folders;
dojo.forEach(folders,function(folder){
alert(kml.folders[0].name);
alert(kml.folders[1].name);
});

}

Re: KML linkInfo ex. name snippet

NahmLee — Sat, 08 Oct 2011 22:20:41 GMT

KML file tags display if button is clicked but I can't write them in a innerHTML when KML is loaded in init() function. Why???

<!doctype html>
<html lang="en">
<head>
<title>KML name</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=7,IE=9" />
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/>
<title></title>
<link rel="stylesheet" href="http://serverapi.arcgisonline.com/jsapi/arcgis/2.5/js/dojo/dijit/themes/tundra/tundra.css">
<link rel="stylesheet" type="text/css" href="http://serverapi.arcgisonline.com/jsapi/arcgis/2.5/js/esri/dijit/css/Popup.css"/>

<style>
html, body { height: 100%; width: 100%; margin: 0; padding: 0; }
#map { margin: 0; padding: 0; }
#meta {
position: absolute;
left: 60px;
Top: 20px;
width: 300px;
height: 300px;
z-index: 40;
background: #fff;
color: #777;
padding: 5px;
border: 5px solid #777;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
font-family: arial;
font-size: 0.9em;
}
#meta h3 {
color: #000;
font-size: 1.1em;
padding: 0px;
margin: 0px;
display: inline-block;
}
#loading {
float: right;
}
</style>
<script>var dojoConfig = { parseOnLoad: true };</script>
<script src="http://serverapi.arcgisonline.com/jsapi/arcgis/?v=2.5"></script>
<script>
dojo.require("dijit.layout.BorderContainer");
dojo.require("dijit.layout.ContentPane");
dojo.require("esri.map");
dojo.require("esri.layers.KMLLayer");

var map, resizeTimer;
var kmlUrl, kml;
function init() {
var initExtent = new esri.geometry.Extent({"xmin":-15042310.65,"ymin":1599979.71,"xmax":-6236764.99,"ymax":7470343.49,"spatialReference":{"wkid":102100}});
map = new esri.Map("map",{ extent: initExtent });
var basemap = new esri.layers.ArcGISTiledMapServiceLayer("http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer");
map.addLayer(basemap);

kmlUrl = 'http://www.hpc.ncep.noaa.gov/kml/qpf/QPF6hr_f00-f06_latest.kml';
kml = new esri.layers.KMLLayer(kmlUrl);
map.addLayer(kml);
var folders = kml.folders;
//it doen't work????
document.all.here.innerHTML=kml.folders[1].name+" : <br />"+kml.folders[1].snippet;
}

function NameKML(){
var folders = kml.folders;
alert("kml name : " +kml.folders[1].name);
alert("kml snippet : "+kml.folders[1].snippet);
alert("kml description : "+kml.folders[1].description);
document.all.meta.innerHTML=kml.folders[1].description;
}

dojo.ready(init);
</script>
</head>

<body class="tundra">
<div data-dojo-type="dijit.layout.BorderContainer" data-dojo-props="design:'headline',gutters:false" style="width: 100%; height: 100%; margin: 0;">
<div id="map" data-dojo-type="dijit.layout.ContentPane" data-dojo-props="region:'center'">
   <div id="meta">
    <h3>Display KML Using a <a href="http://help.arcgis.com/en/webapi/javascript/arcgis/help/jsapi/kmllayer.htm">KMLLayer</a></h3>
    <br />
    <input type="button" value="Name KML" onclick="NameKML();" /><br />
    <div id="here">
    </div>
   </div>
</div>
</div>
</body>
</html>

Re: KML linkInfo ex. name snippet

derekswingley1 — Sun, 12 Dec 2021 03:49:37 GMT

JavaScript executes asynchronously so the code to create your KMLLayer starts but isn't finished when you're trying to access the folders property. To get your folder info, connect to the KMLLayer's onLoad event:

kmlUrl = 'http://www.hpc.ncep.noaa.gov/kml/qpf/QPF6hr_f00-f06_latest.kml';
kml = new esri.layers.KMLLayer(kmlUrl);
map.addLayer(kml);
dojo.connect(kml, 'onLoad', function(kl) {
  alert('kml loaded. folder[1].name is: ' + kl.folders[1].name);
});

This pattern applies to all layer types in the JS API.

Re: KML linkInfo ex. name snippet

NahmLee — Wed, 12 Oct 2011 15:44:28 GMT

Thank you very much!!!
It works fine now.

https://s3.amazonaws.com/Nahm/KML/KML_Name_Final.html

Nahm

Re: KML linkInfo ex. name snippet

derekswingley1 — Wed, 12 Oct 2011 15:54:05 GMT

Glad you got it working!