Generating contours for area (-32, 62, -31,75, 62,25) ERROR: Brejc.DemLibrary.DemLoaderException: No DEM data available. bei Brejc.DemLibrary.IntelligentDemProvider.LoadDem(Bounds2 bounds) bei Brejc.DemLibrary.Ibf.IbfUtilities.GenerateAreaDefinitions(IbfFile ibfFile , IRasterDemProvider rasterDemProvider, GenerateIbfAreaDefinitionsParameters par ameters) bei GroundTruth.Engine.Ibf.DefaultIbfGenerator.Run(IbfGenerationParameters pa rameters) bei GroundTruth.GenerateContoursCommand.Execute(IEnumerable`1 args) bei GroundTruth.ConsoleApp.Process()

I tried to put empty dem files named N62W031.hgt.zip, N62W032.hgt.zip, N63W031.hgt.zip and N63W032.hgt.zip into the Eurasia folder – no effect. For testing purposes, I deleted all other files in that directory. But it’s still not working.

Do you know where the problem is? Do the empty files have to be named other than I did?

Kind regards

Yes, I think creating a dummy zero-elevation tile for the missing area is currently the easiest workaround. I’ll add this issue to the “todo” list and fix it when I get some free time.

I already set up an Apache webserver and downloaded all SRTM3 and SRTM1 data from the NASA server. Then I integrated the files from Jonathan de Ferranti into the directories.

From the excerpt of Geofabrik I know that the bounds of Europe are 34, -32, 75, 45 (minLat, minLon, maxLat, maxLon). At some point Groundtruth is giving me the error that there is no DEM data for that area. I found out, that this is only sea area. Is there a way to avoid this error? Could I only copy another tile with all elevations in that area set to zero?

Best Greetings

I’ve added your request to the “todo” list for next versions.

Would you create writer encoding based on “CodePage” parameter. For example: protected void GenerateIndividualFile(IPolishMapFileCreator polishMapFileCreator, ITaskRunner taskRunner, string mapFileInfo) { Encoding fileEncoding = null; if (this.settings.AdditionalMapParameters.ContainsKey(“CodePage”)) { string codePageString = this.settings.AdditionalMapParameters["CodePage"]; int codePage; int.TryParse(codePageString, out codePage); try { fileEncoding = Encoding.GetEncoding(codePage); } catch { } }

        using (CGpsMapperMapWriter writer = new CGpsMapperMapWriter(polishMapFileCreator.CreatePolishMapFile(), mapFileInfo, fileEncoding))

Regards, Ivan