London, September 2007
In 2007, a large-scale Raster to Vector (R2V) Data Conversion Project was started at EDF Energy. The scope of the project is to capture the relevant raster data from various source documents and convert this into reliable vector data that is represented in EDF Energy Networks’ corporate Geographic Information System called NetMap.
The NetMap system is based on Smallworld GIS. The Mettenmeier Network Resource Manger (NRM) product provides the electricity data model used within NetMap. NRM is a commercial-off-the-shelf package, which has been modified in order to meet EDF Energy Networks’ specific requirements.
The NRM application allows a single feature to have multiple representations. The most common use of this facility is to record the accurate position of an object in the detail map, and the overview position that is used to create a geo-schematic representation.
Single-line module for NRM ElectricityOn the detail map level, the underground network is currently represented as either multi-line, where each line represents the route of a single cable, or alternately as single-line, where each line represents the route of multiple cables. In order to recreate the representation shown on the raster in vector, a single-line module is provided that demonstrates an innovative approach to fulfil the company's requirements:
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