Regedit for Population Error


While attempting to populate LAS Working Segments the process errors with an exception. In the system message column of the Checklist Step History you note the following exception:

System.ArgumentException: Source array was not long enough. Check srcIndex and length, and the array’s lower bounds.
at System.Array.Copy(Array sourceArray, Int32 sourceIndex, Array destinationArray, Int32 destinationIndex, Int32 length, Boolean reliable)
at NIIRS10.LASLib.LASStructArray1.NIIRS10.LASLib.ILASArray0.CopyPoint(Int32 index, ILASArray0 ila, Int32 srcIndex) in N:\GeoCue 2017.1\iDEMS\iDEMSShared\LASLib\LASstructures.cs:line 2212
at NIIRS10.LASLib.LASTiler.copyPtsToTileBuf(UInt32 nPtsToRead, TLDEntry[] aTLD) in N:\GeoCue 2017.1\iDEMS\iDEMSShared\LASLib\Tiler.cs:line 646
at NIIRS10.LASLib.LASTiler.populateTiles(UInt32 nFirstNdx, UInt32 nLastNdx, TLDEntry[] TLD) in N:\GeoCue 2017.1\iDEMS\iDEMSShared\LASLib\Tiler.cs:line 611
at NIIRS10.LASLib.LASTiler.Tile(UInt64& ulNumPoints, Double& dMaxDensity, UInt32[]& auiIHist) in N:\GeoCue 2017.1\iDEMS\iDEMSShared\LASLib\Tiler.cs:line 434
at NIIRS10.ArbWrkSegSup.Populate.FinishDestEntity(Int32 nEntityID, Boolean bPopulated) in N:\GeoCue 20

Probable Resolution #1:

The following code snippets, when copied and pasted into text documents and saved as “Large_32K_TilerBuffer.reg” and “DefaultTileBuffer.reg”, respectively, and then merged into the registry, will modify the memory buffer size used when populating working segments.

  1. Merge the “Large_32K_TilerBuffer.reg” file into the registry on the machine(s) you wish to use for population. You will need to grant local administrative rights in order for the merge to succeed.
  2. About a minute after importing (letting it get into effect) please run your population again.
  3. After that merge the “DefaultTilerBuffer.reg” file to restore to the original state.


Windows Registry Editor Version 5.00



Windows Registry Editor Version 5.00


Probable Resolution#2

If the 32k buffer size doesn’t work try one of the following instead. Different data may require different buffer sizes to be used. Note: This is a temporary fix as we investigate the root cause.


Windows Registry Editor Version 5.00



Windows Registry Editor Version 5.00


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