Data access

The search in the metadata catalogue is publicly accessible. In order to access the geodata in the respective services (download service and web services), however, authentication via SWITCHaai is required.

Authentication

The authentication process depends on the service selected:

  • For the download service, the log-in window appears after clicking on the link in the search catalogue. The user needs to accept the terms of use by placing a tick and registering via the SWITCHaai authentication window with a username and password. The selected dataset will then be displayed on the browser.
  • For access to a web service dataset, the corresponding dataset is loaded into the desktop GIS as a geo-web service via the link in the detailed view of the hit. The authentication is performed directly in the desktop programme.

Downloadservices

Data access download service

The data access via the download service is browser-based. The datasets available can be displayed directly on the browser and (depending on the dataset) limited to individual layers, a particular resolution or a particular timeframe. The extract selected can be downloaded for further processing in your own GIS programme.

After the corresponding dataset (e.g. swissimage) has been found via the search function, the user follows the link and, after agreeing to the terms of use and authentication via SWITCHaai, gains access to the download service.
The dataset selected (e.g. swissimage) is automatically added to the “active layers” and displayed.

Various timeframes can be selected for the data via “Time controls”.
You can zoom directly with the mouse or by entering the desired locality in the search field (e.g. Zurich).

Additional datasets can be displayed (e.g. swissTLM3D rail lines). These are either sought via the search field or selected directly via “Select datasets”.

For the download, an extract (“extent”) needs to be defined (by selecting it directly with the mouse or entering coordinates).
The selected datasets (“active layers”) are then added to the “download list” individually or altogether (“get all”). It is possible to save the download list or share it with other users.

The data excerpts can then be downloaded to your own computer from the download list in different output formats (default: ESRI shapefile) and opened and processed in any software programme (such as CAD or graphics editing software).

Webservices

Data access web services

The geodata4edu.ch web services offer the available datasets as map, feature or image services for integration in your own GIS programme and thus allow the geodata to be worked with directly (exploring, displaying, extracting…).

By clicking on the direct link and after agreement to the terms of use and authentication via SWITCHaai, the dataset selected is displayed on the desktop GIS.

Various functionalities can be used in the desktop GIS:

  • Adding geodata from geodata4edu.ch or other data sources and formats
  • Changing symbolisation and processing the geodata further
  • Displaying object details

For extensive analyses, the data can be saved locally:

Other datasets can be saved in various formats via “Extract data” and processed further.

Entire datasets, including data models, can be saved and processed further via “Replica”.