Google如何获得地图上邮政编码的轮廓？ [英] How did google get the outline for postcodes on maps?

问题描述

例如： http://g.co/maps/2dpkj 的邮政编码大纲区。我知道这是通过API无法使用的，但我还可以在哪里获得这些数据，例如以KML格式。

这是UK Data

解决方案

Google很可能与Ordnance Survey签有许可协议，允许他们使用<代码点与多边形数据 - 我想他们'然后对数据进行一些处理以生成KML文件。根据您的GIS技能以及您阅读源文件（ESRI / MapInfo）的能力，您应该也可以这样做。

另一种方法是使用 Code Point 数据集，它具有免费的优点，并以CSV文件的形式提供，但您需要重新处理它以重新生成多边形。 Google Code中有一个项目，我认为这个项目可以帮助您， geocoordconversion 。阿德里安山有一个博客这里在使用代码点数据集的DLL上。

For example: http://g.co/maps/2dpkj has the outline around the postcode area. I understand this is unavailable through the API , but where else can I get this data, eg in a KML format.

This is for UK Data

解决方案

Most likely Google have a licensing agreement with Ordnance Survey that allows them to use the Code Points with Polygons data - I imagine they've then done some processing of the data to generate a KML file. Depending on your GIS skills and your ability to read the source file (ESRI/MapInfo), you should be able to do the same.

An alternative is to use the Code Point dataset, which has the virtue of being free and is supplied as a CSV file, however you'll need to re-process it to re-generate the polygons. There's a project on Google Code that I think will help you with this, geocoordconversion. Adrian Hills has a blog here on using the DLL with the Code Points dataset.

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