public Spatial4nWriter(IShapeConverter shapeConverter)
		{
			_shapeConverter = shapeConverter;
			_wktWriter = new WktWriter(shapeConverter);
		}
 public Spatial4nWriter(IShapeConverter shapeConverter)
 {
     _shapeConverter = shapeConverter;
     _wktWriter      = new WktWriter(shapeConverter);
 }