CODEWITHSUNDEEP
c#.netkml
Javier C
Javier C

Reputation: 101

Read a kml file on c# project to give back the information

I'm trying to read a KML file in a C #. I need to read this information to get the information and treat it. Is there a library to read a KML giving back the information in a data structure? If not, how do you read a KML file? Is it like reading a XML file?

Upvotes: 4

Views: 8652

Answers (3)

pistipanko
pistipanko

Reputation: 775

Here is my way to parsing a KML file to get coordinates of object:

string elementToFind = "example";
System.IO.Stream kmlFile = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream("objects.kml");
Xml.Linq.XDocument xDoc = System.Xml.Linq.XDocument.Load(kmlFile);
string xNs = "{" + xDoc.Root.Name.Namespace.ToString() + "}";

var coordsStr = 
(from f in xDoc.Descendants(xNs + "Placemark")
where elementToFind.Contains(f.Parent.Element(xNs + "name").Value + f.Element(xNs + "name").Value)
select f.Element(xNs + "LineString").Element(xNs + "coordinates")).FirstOrDefault();

Parse it like a regular XML file a search for data you need. I hope this helped you a little.

Upvotes: 3

Javier C
Javier C

Reputation: 101

I've found the solution. The problem was the new xsd file have multiple namespace, so to convert to classes using XSD.exe I needed two more files: atom-author-link.xsd and xal.xsd

After that I've used XSD.exe with this command line: xsd.exe /c ogckml22.xsd atom-author-link.xsd xal.xsd

Finally, I had classes from xsd file.

Additional information:

I've just found this library (http://sharpkml.codeplex.com/) to read/write kml 2.2 files. It's an update of libkml

Upvotes: 3

Matt Smucker
Matt Smucker

Reputation: 5234

Google provides an XSD files with the schema for the KML files, you can find it at the location below.

http://code.google.com/apis/kml/schema/kml22gx.xsd

Here is the documentation for the KML format:

http://code.google.com/apis/kml/documentation/kmlreference.html

You could use the Microsoft XSD tool to generate a class from the schema:

http://msdn.microsoft.com/en-us/library/x6c1kb0s(v=VS.100).aspx

Upvotes: 0

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