WFS NW ALKIS Floor Plan Data AAA Model Based

The property register is kept in electronic form in the Official Property Register Information System (ALKIS). The present Web Feature Service enables the targeted download of geo-objects in ALKIS based on a search query (direct access download service). The service provides the geo-objects in a format defined on the basis of the norm-based exchange interface (NAS) in accordance with the GeoInfoDok 6.0.1 (http://www.adv-online.de) at least to the extent of the nationwide standard database. The encoding is adapted to the user by using geometries according to the OGC-Simple feature standard (http://www.opengeospatial.org/standards/sfa), units of measurement based on UCUM (http://unitsofmeasure.org/), OGC-URIs for EPSG coordinate reference systems, HTTP-URIs for reference of objects (http://www.w3.org/Protocols/Specs.html) and additional inverse relations. In this case, WFS-getFeature requests are usually used with a query that selects the referenced object, unless otherwise stable URIs are offered for the objects. The service is designed for use in practical GIS clients that can exploit the customised geo-objects as well as have functionalities for processing complex NAS structures. Status of the data used: 01.04.2022.

官方不动产登记信息系统（Official Property Register Information System, ALKIS）以电子形式存储不动产登记簿。本网络要素服务（Web Feature Service）支持基于搜索查询对ALKIS中的地理要素进行定向下载（直接访问下载服务）。该服务可提供符合GeoInfoDok 6.0.1（http://www.adv-online.de）规范、基于标准交换接口（NAS）定义格式的地理要素，覆盖范围至少涵盖全国标准数据库的全部内容。其编码适配用户需求，采用了符合OGC简单要素标准（http://www.opengeospatial.org/standards/sfa）的几何格式、基于统一计量单位代码（UCUM, http://unitsofmeasure.org/）的计量单位、用于EPSG坐标参考系统的OGC URI、用于对象引用的HTTP URI（http://www.w3.org/Protocols/Specs.html），并补充了反向关联关系。通常情况下，该服务使用WFS-getFeature请求并附带用于选中目标引用对象的查询参数，除非该类对象已提供稳定专属URI。本服务面向可利用定制化地理要素、且具备处理复杂NAS结构功能的实用型GIS客户端设计。所用数据的基准日期为2022年4月1日。