Geometry转geoJson

最新推荐文章于 2025-08-04 17:00:19 发布

原创最新推荐文章于 2025-08-04 17:00:19 发布 · 1.1k 阅读

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本文介绍如何将Geometry对象转换为geoJson格式，包括解析Geometry数据、创建geoJson结构以及转换过程中的关键点处理，适用于地理信息系统中的数据交换和存储。

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  public static string ConvertEsriGeometryToGeoJson(IGeometry esriGeometry)
        {
            GeoJsonWriter geoJsonWriter = new GeoJsonWriter();
            Geometry geometry = null;
            try
            {
                byte[] b = ConvertGeometryToWKB(esriGeometry);
                WKBReader reader = new WKBReader();
                geometry = reader.Read(b);
            }
            catch (Exception ex)
            {
                LogComm.AppendLog(ConfigurationManager.ConnectionStrings["log"].ToString(), "ConvertEsriGeometryToGeoJson", ex.Message, true);
                throw ex;
            }
            return geoJsonWriter.Write(geometry);

        }


        public static byte[] ConvertGeometryToWKB(IGeometry geometry)
        {
            byte[] b = null;
            try
            {


                IWkb wkb = geometry as IWkb;
                ITopologicalOperator oper = geometry as ITopologicalOperator;
                oper.Simplify();
                IGeometryFactory3 factory = new GeometryEnvironment() as IGeometryFactory3;

                try
                {
                    b = factory.CreateWkbVariantFromGeometry(geometry) as byte[];
                }
                catch (Exception ex)
                {
                    IsGeometryExistArc(geometry);
                    b = factory.CreateWkbVariantFromGeometry(geometry) as byte[];

                }
            }
            catch (Exception ex)
            {
                LogComm.AppendLog(ConfigurationManager.ConnectionStrings["log"].ToString(), "ConvertGeometryToWKB", ex.Message, true);
                throw ex;
            }
            return b;
        }

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