Discussion: Karttapullautin error messages

I'm trying to generate a quick and dirty map for a presentation at a Boy Scout camp. I downloaded LIDAR data from USGS of the area and converted the LAZ file with las2txt. Running pullauta gives me the following output. Note that I have an 8GB WIndows system, so memory isn't a problem.

Preparing input file
.......... done.
Knoll detection part 1
.. done.
Knoll detection part 2
..Illegal modulus zero at script/pullautin.pl line 5393.

Contour generation part 1
.................... done.
Contour generation part 2
.Illegal division by zero at script/pullautin.pl line 4212.

Contour generation part 3
.................... done.
Contour generation part 4
.................... done.
Vegetation generation
....Out of memory!

Cliff generation
# 1.2 2.5 #
.....Illegal modulus zero at script/pullautin.pl line 2680.

Rendering png map with depressions
...Can't use an undefined value as a symbol reference at GD/Image.pm line 176.

Rendering png map without depressions
...Can't use an undefined value as a symbol reference at GD/Image.pm line 176.


All done!

If anyone wants to play with it, the LIDAR data is at https://app.box.com/s/mt0fr0lnuh9lipwqr6f8
Thanks.

For Pullautin the data must be classified and unit in meters and large areas must be processed in tiles.

- This area looks quite large 50 x 60 km. Maybe unit is foot, if it is so you will need to convert it to meters. You can use las2las to do the conversion.
- If area is too large, retile it to something like 2 x 2 km tiles and process it in batch mode.
- But I also noticed the data is not classified, there is no ground points. So you will have to classify it with something like mcc-lidar. lastools may have ground classification tool too.

lastools has lasground for ground classifying.

Thanks for looking into it. It probably is in feet. It's a large area, but not that large. I only want a small part of it. I'l give your suggestions a try when I get a chance.

I did look at the las2las help, but I can't figure out how to convert from feet to meters.

Edit: I think I see how to do this in the readme file.

Here are the las2las commands that I used for Ohio tiled data. I don't know what the corresponding California state plane commands would be. Now I tend to merge and re-tile into 1km UTM tiles, but I don't have notes for the commands I use.

http://www.attackpoint.org/discussionthread.jsp/me...