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3D data packages

3D data packages combine various swisstopo data sets or products in one package. These packages are designed for the realisation of 3D visualisations. If possible, the data sets contained in them have the same format, the same coordinate system and the same structure. The combination of data sets in one package thus eliminates the need for conversions and transformations of different data and makes them much easier to use.

Packages

Minimal package
View of Zurich 3D-data packages

The minimal package was designed to be as light and easy to use as possible. It combines

  • 3D terrain derived from swissALTI3D
  • Buildings from swissBUILDINGS3D 2.0
  • 3D bridge axes from swissTLM3D
  • 2D street texture from swissTLM3D

in one data set.

Representation of the package elements:

If desired, the terrain can be textured. The following options are available:

  • Texturing using SWISSIMAGE orthophoto
  • Texturing using SWISSIMAGE orthophoto and burnt-in traffic axes (road & rail)
  • hillshade
  • hillshade and burnt-in traffic axes (road & rail)

It is also possible to colour buildings and bridges as desired. The colouring can be adjusted at any time by a slight change in the material file (*.mtl) (more on this in the documents).

The customer can also request the colouring of the traffic axes.  Once created, however, it can’t be changed via the material file like the buildings or bridges. Subsequent adjustments are only possible using image editing programmes such as Photoshop.

Technical details

Structure:

The data is divided into evenly spaced tiles. The division is based on the 1/16 tiles of the 1:25,000 national map (approx. 13 km2).

formats:

  • geometry data in .obj format
  • material file in .mtl- format: This file is used to define the colours, material properties and texture of the geometry data. They can be adjusted in this file.
  • texture in .jpg- format
  • metadata in .txt format

Coordinate system: LV95/LN02

Further information:

  • The terrain can be generated in different resolution levels, min. 0.5m - max. 128m.
  • Each resolution level corresponds to the tolerance in metres that is allowed during generalisation.
  • Significant terrain features such as ridges, peaks and large height differences are preserved at each resolution level.
  • The customer can choose different resolution levels for the orthophoto texture, min. 0.1 m (pixel size).
  • The choice of resolution influences the volume of the data and must therefore be adapted to the spatial extent and the intended use.
  • Buildings consist of facades and roofs, which can be coloured separately from each other.

 

the detailed package is in progress

Documents

Publications concerning 3D data packages  are only available in German and French. Please select your preferred language in the navigation bar to view the desired document

Sample data

Interactive example