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LIDAR files were released for major part of Slovenia few months back in zlas format. Decompressed LAS format is 1.4 version. I have tried many options how to generate DEMs and had some success in programs and tools but unfortunately they were all trial versions of license pay versions.

Problem is that I can't open and generate DEMs of LAS version 1.4 in many open and free tools (such as MCC-Lidar).

Can you help me converting LAS from 1.4 to 1.2 in some free tool? Or if it is any other way for LAS 1.4.

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  • Could you make a list about what free tools you have tried so far and which LAS versions they support by the documentation and by your own experiments? Others can then improve your list.
    – user30184
    Commented Oct 11, 2015 at 12:15
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    Linking related question: gis.stackexchange.com/questions/155567/….
    – Andre Silva
    Commented Oct 12, 2015 at 12:33

1 Answer 1

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For converting to las 1.2 from las 1.4, PDAL's translate command is an option:

pdal translate --writers.las.minor_version=2 input-las14.las output-las12.las

LAStools can also do the job:

las2las -i input-las14.las -set_version 1.2 -o output-las12.las

In general, las 1.4 support is patchy among free and open-source las-aware software, e.g. liblas doesn't handle it.

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  • You solved my problem. I tried before with las2las tool in QGIS, but simply didn't have any success in finding the right place to insert line you posted. I downloaded las2las.exe and it worked. Big thanks!
    – Jost Hobic
    Commented Oct 13, 2015 at 16:51
  • this will not work if you have point formats in 1.4 that are not compatible with <1.4 - PDAL: writers.las: LAS version 1.3 only supports point formats 0-5.
    – Malcolm
    Commented Oct 30 at 13:51

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