Needs The IBGE asked BGI to create a data set about the Forest of Soignes - geology - soil - ecology - alphanumeric database to realize a thematic map about : - the slopes ( > and < to 20 %) - their aspects (north and south)
From Environmental data on paper Geological maps on paper Soil maps on paper A raster copy of contour lines Data provider : Belgian National Geographical Institute (NGI)
The work 1To digitize or vectorize all the data available and especially to entry the elevation of the 3D data 2To clean, validate and create the polygons of the areas vectorized 4To create a DTM from the 3D data and to drape the 2D data 5To analyze the 3D data 3To register the new polygons with the data coming from the NGI
To accomplish this project we used the GeoEngineering MicroStation Environment MicroStation MicroStation Descartes MicroStation GeoGraphics Geopak GeoTerrain
Vectorisation with Descartes Soil map Geological maps
N S 200 m 2 km Slopes < 20 % Slopes > 20 % and south aspect Slopes > 20 % and north aspect Forest of Soignes : Ecological areas
Conclusion The complete interoperability between these four applications allowed us to profit of the efficient tools of each working configuration. The customizable tools (MDL, MicroStation Basic and now JAVA) allowed us to exactly fulfil the client needs.
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