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How to import Lidar (.laz) files?
Posted: 26 Mar 2025 09:21
by AntonyVW
Ive downloaded several Lidar (.laz) files from the UK DEFRA site. How do I import that data to Transdem? Does it need to be converted to dem first? If so what software do I neeed to convert it?
Antony
Re: How to import Lidar (.laz) files?
Posted: 26 Mar 2025 19:36
by geophil
That looks like a LIDAR raw data file, presumably a point cloud. This is not compatible with TransDEM. TransDEM requires DTM (DEM) data organized in a matrix. Doesn't DEFRA offer that anymore? I think they did GeoTIFF in the past ("LIDAR Composite DTM"), see
viewtopic.php?p=3082#p3082.
Re: How to import Lidar (.laz) files?
Posted: 27 Mar 2025 10:01
by AntonyVW
Thank you. I had not noticed that there were other options. I have now downloaded and imported what I needed.
Antony