NHibernate.Spatial and Sql 2008 Geography type - How to configure

Question

I am trying to use Nhibernate with the Sql 2008 Geography type and am having difficulty. I am using Fluent Nhibernate to configure which I am fairly new to so that may be th

Answer 1

You can create your own factory with a default SRID. For example, you can create a facade for factories such as this:

public static class Default
{
    private const int DefaultSrid = 4326;

    public static readonly IGeometryFactory Factory;

    static Default()
    {
        Factory = new GeometryFactory(new PrecisionModel(), DefaultSrid);
    }
}

and use it like this:

var point = Default.Factory.CreatePoint(new Coordinate(10, 10));

instead of using the "new" keyword. You can also use the Default.Factory as a factory method in your IoC framework to create new geometries without the Default facade.