Show terrain

SketchUp Pro
21

In order to look a little more into LAZ files, I did the following:

Then I ran the utility las2txt on the .laz file in order to get it into an ascii xyz format:
.\las2txt -i 32-1-514-133-77.laz parse xyz -o lidar.txt

This worked nicely, but it seems to confirm my suspicion that this is a raw format with unordered data. While data ordering surely can be dealt with, this is not really what I have set out to do.
My importer currently trusts that data is ordered in rectangular (raster) sets.
I am aware that LASTools also handles some kind of filtering but I have not currently investigated into this.

So again I would advise you to check a little more into what formats are available in Finland. I am pretty sure that there should be rectangular (raster) sets available. They will have prepared data (not raw) with NODATA values where the LIDAR scans are incomplete.

22

Yes, I have just started to find out the possibilities.
“Maanmittauslaitos” is the local equivalent of Kartverket . They call themselves National Land Survey in English.
Is the “Elevation model” in ASCII Grid format the one you mean?

23

Could very well be a good candidate. Maybe they even use the same format as Sweden (*.asc)?? Download one to have a a look at it.

24

I had a look at the the Finnish web site. I have verified that they provide elevation data in both ASCII grid (.asc) and GeoTIFF (.tif) formats. GeoTiffs are much smaller in size as they are binary, but both formats should work correctly in the importer dll version uploaded today to the Extensions Category (1.0.206.0).

25

I have now updated the Sketchup elevation data importer (geomapimporter.dll for Windows) to version 1.0.207.0 and added support for free UK OpenData from OS Data Hub.
It is available in the Extensions category.
Here is an example from Scotland, I believe we see Lock Quoich in the foreground.
Happy sketching.

UK_Scotland_4