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The ovl format is specific to Germany and Austria. For more information, click here The best way that I have found to convert these to shapefiles is to use gpsies , convert to kml, then use ArcGIS to convert to layer. Another software that I have found to be useful is KML Manager but you only get a 21 day free trial.


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As FelixIP said in the comments, the Z values should be in there: the "Z" in the Shape type of "Multipoint ZM" indicates that your layer is z-enabled, so if you did the conversion from .XYZ to Shapefile correctly, your Z values are in there. It's just that Z values don't show up in a feature's attribute table by default, you need to add them manually. You ...


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Regarding printing the raster in 3D one option is the software R. Here is a code using your sample file: library(rgdal) #this package is necessary to import the .asc file in R. library(rasterVis) #this package has the function which allows the 3D plotting. #set the path where the file is, and import it into R. r= ...


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You already have a DEM; there is no need for you to create one. The DEM is contained within your files, i.e. you have two copies of the DEM, one contained within an ArcGIS ASCII raster and the other within a GeoTIFF. These are simply file formats that contain the raster data that is your DEM. One of the most common formats for a terrain model is as a regular ...


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Given your error, my guess is that when you are importing the file to GRASS, it is expecting a GRASS ASCII raster format, which has a header that looks like this: north: ####.### south: ####.### east: ####.### west: ####.### rows: ####.### cols: ####.### Instead of an ArcGIS ASCII grid, which has a header that looks like ...



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