GeoKeys v.4, other

Map Supply Geo Web Services is a series of web services that can return information about geographic objects such as roads, addresses, landowners, land parcels, parishes and municipalities. This information includes, among other things, the geographical extent/position of the objects, the relation of road names to road code, the relation of municipality names to the municipality number. In addition, the Map Supply® Geo Web Services 1.0.0 are also methods for transforming coordinates from one coordinate system to another. The returned geographic ranges/positions can then be combined with WMS/WFS services, e.g. from Map Supply® to display the respective returned object(s) on a map. You can access the Geokeys via the Internet. This makes it easier to develop solutions that integrate both maps and e.g. addresses from Map Supply®. This document contains information on how to use the Geokeys. Web Services are very easy to implement in development environments — especially the.Net platform has integrated the use of web services in a good way. Where the old geokeys had to create an instance of a network connection, after which the answer from a query had to be read and manipulated, web services are much easier. In addition, the information is also improved. For many of the objects, e.g. a municipality, a cadastral, a road and an owner’s lichen, its geographical extent in the form of a Minimum Bounding Rectangle (MBR) is also part of the information. This means that you can then display a map with an extent in which the object, e.g. the road with certainty, is included. With the old geokeys, the information about the object contains either no geographical position or a position in the form of a point. The problem with the latter is that one subsequently never knew whether the whole object was shown on the map, because the extent of objects e.g. cadastrals varies greatly.地图供应地理网络服务（Map Supply Geo Web Services）是一类可返回道路、地址、土地所有者、地块、教区及市政区域等地理对象信息的网络服务。该类信息涵盖对象的地理范围/位置、道路名称与道路编码的对应关系、市政区域名称与市政编号的对应关系等内容。此外，Map Supply® 地理网络服务1.0.0版本还提供坐标系统转换功能，可实现不同坐标系间的坐标转换。所返回的地理范围/位置信息可与WMS/WFS服务（如Map Supply®提供的相关服务）结合使用，以在地图上展示对应返回的对象。用户可通过互联网访问地理密钥（Geokeys），这有助于开发集成Map Supply®提供的地图与地址等信息的解决方案。本文档将介绍地理密钥的使用方法。网络服务在各类开发环境中均易于实现，其中.Net平台更是对网络服务的使用提供了良好的集成支持。相较于旧版地理密钥需先创建网络连接实例，再读取并处理查询返回结果的流程，网络服务的实现难度大幅降低。此外，该服务所返回的信息也得到了优化升级：针对多数地理对象（如市政区域、地籍地块、道路及土地所有者地块），其信息中还将包含以最小外包矩形（Minimum Bounding Rectangle，MBR）形式表示的地理范围。这意味着用户可基于包含目标对象（如道路）的确定范围来加载地图。而旧版地理密钥中，对象的信息要么不含地理位置，要么仅包含点形式的位置坐标。后者存在明显缺陷：由于地籍地块等对象的范围差异极大，用户无法确认地图是否完整展示了整个目标对象。