GML 2.1.2 XML Data Binding  - Nuget packge LiquidTechnologies.XmlObjects.GML2-1 GML 2.1.2 XML Data Binding - Nuget packge LiquidTechnologies.XmlObjects.GML2-1

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Geography Markup Language

e OpenGIS® Geography Markup Language Encoding Standard (GML) The Geography Markup Language (GML) is an XML grammar for expressing geographical features. GML serves as a modeling language for geographic systems as well as an open interchange format for geographic transactions on the Internet. As with most XML based grammars, there are two parts to the grammar – the schema that describes the document and the instance document that contains the actual data. A GML document is described using a GML Schema. This allows users and developers to describe generic geographic data sets that contain points, lines and polygons. However, the developers of GML envision communities working to define community-specific application schemas that are specialized extensions of GML. Using application schemas, users can refer to roads, highways, and bridges instead of points, lines and polygons. If everyone in a community agrees to use the same schemas they can exchange data easily and be sure that a road is still a road when they view it. Clients and servers with interfaces that implement the OpenGIS® Web Feature Service Interface Standard read and write GML data. GML is also an ISO standard (ISO 19136:2007)

NuGet Package ID LiquidTechnologies.XmlObjects.GML2-1
Description An object model for the GML 2.1 standard providing strongly typed classes that can be serialized/deserializsed to XML.
Documentation Liquid XML Objects API
Schema Documentation https://schemas.liquid-technologies.com/GML/2.1.2/
Official Schema Site http://www.opengeospatial.org/
License EULA
Supported Platforms
  • .Net Standard 2.0 and above
  • .Net Core 2.0 and above
  • .Net Framework 4.0 and above
  • Create a new Visual Studio Project
  • Add a reference to the nuget package @myModel.NugetID
  • Create an LxSerializer<> for your root element
    • If the root element in your XML document is 'MyRoot' then the object generated to represent it should be called 'MyRootElm'*1
    • Hint - In Visual Studio placing the caret within the code LxSerializer<MyRootElm> and pressing Alt-Shift-F10 will give you the option to add the appropriate using statement.
  • Use the LxSerializer to read in the XML Document using the Deserialize method
  • Setting a break point after this line will allow you to explore the structure of the object in the visual studio watch windows.
  • Use the LxSerializer to write in the XML Document back out using the Serialize method
*1 - If the element contains non-alphanumeric characters, then the name may be slightly different.
LxSerializer<ExamplePersonElm> serializer = LxSerializer<ExamplePersonElm>();

// Reading an XML file
ExamplePersonElm person = serializer.Deserialize("MyPersonData.xml");
foreach(ExampleFriendElm friend in person.Friends)
{
    Console.Write("Name = " + friend.Name);
}

// Edit the objects
ExampleFriendElm newFriend = new ExampleFriendElm();
newFriend.Name = "Joe Blogs";
person.Friends.Add(newFriend);

// Write the new data out as XML
serializer.Serialize("MyNewPersonData.xml", person);

Video Tutorial

This video tutorial demonstrates the basic usage of the XML Objects tool. It shows how to generated the code from an XML Schema, how to deserialize an XML document and then Serialize it back out.

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