Hi there, I'm running GRASS 7.x from OSGeo Live and I have a 7Gb GeoTiff DEM of my city which was acquired by LIDAR. But, before generating itens like countours, slope, relief, etc... we'd like to remove non-natural objects such as buildings, constructions, light poles, tree and in first, to a have terrain model (surface height) before generating derived products.
What modules/functions of GRASS should I research for? Or maybe use some combination with other tools? (QGIS, GDAL DEM) thanks in advance, Eduardo Patto Kanegae http://www.webmapit.com.br | @webmapit
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