///<summary>
/// Computes a unary union with no extra optimization, and no short-circuiting.
///</summary>
/// <remarks>
/// Due to the way the overlay operations are implemented, this is still efficient in the case of linear and puntal geometries.
/// </remarks>
/// <param name="g0">A geometry</param>
/// <returns>The union of the input geometry</returns>
private IGeometry UnionNoOpt(IGeometry g0)
{
IGeometry empty = _geomFact.CreatePoint();
return(OverlayOp.Overlay(g0, empty, SpatialFunction.Union));
}
