swissBUILDINGS3D 1.0 describes building volume bodies without roof shape across Switzerland and the Principality of Liechtenstein and corresponds to a simple 3D city model.
The data set was generated based on the data from VECTOR25 building floor plans. The building and position heights are based on the Digital Surface Model (DOM) and the Digital Terrain Model of the official cadastral survey (DTM-AV) derived from this. The building height (Height) was calculated per building floor plan from the relevant laser scanning points. Roof shapes are not taken into account.
swissBUILDINGS3D 1.0 comprises the individual topic level "buildings" (description: building volume bodies without roof shape). Each landscape feature in this level is allocated six standard attributes:
- Consecutive ID
- Original ID of the building floor plan in VECTOR25
- The designation of origin for the building floor plan
- Survey year for the building floor plan (year of flight)
- Position height of the building floor plan in metres above sea level.
- Building height in metres
The building volumes are closed geometries. The buildings do not overlap. Patios are considered.
- ESRI File Geodatabase (3D MultiPatch features)
- ESRI Shapefile (2.5D, with attribute "height")
- DXF (Version 12)
- CityGML 1.0
swissBUILDINGS3D is available in the existing Swiss coordinate systems:
- LV03 LN02
- LV95 LN02
swissBUILDINGS3D 1.0 corresponds to the data collection date for the map-based VECTOR25 building floor plans (3 - 8 m). The basic data sets used come from different data collection periods: DOM and DTM-AV from 2000-2007 and VECTOR25 building floor plans from 1994-2006. Maximum differences of 10 years are possible in the data and determine the homogeneity of swissBUILDINGS3D 1.0. This affects the number of buildings and to a smaller extent the allocated building heights.
swissBUILDINGS3D 1.0 is not updated.
swissBUILDINGS3D can be used for a variety of applications and is an ideal planning and visualisation basis for architects (construction projects, architecture competitions), planners (housing developments, town planning), environmental engineers etc. in particular. Examples of concrete applications include:
- Modelling for noise propagation, noise emission and noise protection measures
- Visibility analyses
- Calculating the propagation of electromagnetic radiation, absorption analysis etc.
- Use in the field of ecology and town climatology
- Large-scale regional and national analyses and displays of building data
Swiss Federal Office of Topography
Tel. +41 31 963 21 11
Fax +41 31 963 24 59
E-Mail to geodata