With the product TopPlusOpen (TPO), the BKG breaks new grounds and creates for the first time a consistent web map, completely based on free and official data sources. For this purpose, the BKG merged, processed and combined many different data
sources in order to achieve the best possible map presentation. Among others, free official spatial data of the Federal Government and the Open Data states Berlin, Hamburg, North Rhine-Westphalia and Thuringia are presented in the product.
Furthermore, Brandenburg, Mecklenburg-Western Pomerania and Rhineland-Palatinate provide their official spatial data for the TPO based on a cooperation agreement so that also these states are presented exclusively by official data.
The web map TopPlusOpen has 18 levels of detail – from the worldwide overview map to the detailed city map in Germany. As standard, the product is available in the widespread Web Mercator Projection (EPSG:3857). Via the WMS interface,
the web map may also be called in further common projections. The web map is divided into three different display areas:
World (small scale)
Europe (medium scale)
Germany and neighbouring countries (large scale)
Additionally, the TopPlusOpen contains high-resolution Presentation graphics. Thus for the first time free and graphically uniform map data are available with full coverage for the territory of the Federal Republic of Germany and the adjacent areas of neighbouring countries in the scales 1 : 5,000, 1 : 10,000, 1 : 17,500 1 : 25,000, 1 : 50,000, 1 : 100,000 and 1 : 250,000 that are optimally suited for printing.
The TPO is available in the following delivery options:
WMS TopPlusOpen (wms topplus_web_open): Contains the web map and the presentation graphics in the scales 1 : 5,000, 1 : 10,000, 1 : 17,500, 1 : 25,000 and 1 : 50,000 in colour and grey
WMTS TopPlusOpen (wmts topplus_web_open): Contains the web map in colour and grey
TopPlusOpen Download: Web Application for downloading of extracts and tiles of the web map and the presentation graphics in colour
Especially, each user has to place the source reference to all geodata, metadata and geodata services recognisably and optically linked. Alterations, processings, new designs or other adaptations have to be affixed with an indication of the alteration in the source reference.
Source reference and indication of alteration have to be formulated as follows. The source reference has to be linked with the URL "http://www.bkg.bund.de" for the representation at a website. Furthermore, the linking of the word “Data sources” is authorized with the following URL: http://sg.geodatenzentrum.de/web_public/Datenquellen_TopPlus_Open.pdf.