Software for LiDAR processing tools.

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7
votes
3answers
3k views

Can I use LASTools to classify point data?

I am presently using LAStools to analyse LiDAR data. Can LAStools classify the points into various features such as vegetation, roads, buildings etc? If so, how is it done?
4
votes
1answer
2k views

Installing LAStools in QGIS 2.4?

Does anyone know where the Processing menu moved in QGIS 2.4? Specifically, I am trying to install the LAStools box for QGIS following these instructions: http://rapidlasso.com/2013/09/29/how-to-...
4
votes
2answers
316 views

Problem with Y offset shift of LAS file (las2las)

I'm trying to set the origin of a georeferenced .las point cloud to be coordinates 0,0,0, essentially stripping the georeferencing. The only way I could think to do this was subtract the minimum X, Y ...
4
votes
1answer
126 views

Importing LAS files in QGIS with LAStools gives an 'ascii encode error'

I'm new to QGIS environment and I am trying to load LAS files into QGIS with lasground but when I run the following process an error occurs: 'ascii' codec can't encode character u'\u0105' in ...
4
votes
1answer
133 views

Raster cells with no data being generated by las2dem?

Anyone has an idea where these lines (with no elevation data) come from? They are generated while using the las2dem tool from LAStools. What needs to be done to avoid this? The raw data (.las file) ...
3
votes
1answer
519 views

QGIS 2.14.1 LAStools install error: “wrong value for parameter 'Msys folder'…”

I went to step 4 from rapidlasso.com guide and extracted LAStools to my C drive and just made the folder there. I can't do step 8 because it seems to already be in "advanced interface". Then, step 9 ...
3
votes
1answer
254 views

What's the deal with “degradation” and lastools?

I've read a few cautions online and heard a few from colleagues. If you don't purchase a license for lastools, the non-open-source functions will somehow degrade your data or results? Is this true? ...
3
votes
1answer
41 views

Sending arguments to lastools function from python script not working

I`m trying to call the lasground module from a python script, using this method: args=['lasground', '-i *.las', output_file, arg_step, arg_spike, arg_spikedown, arg_offset, arg_bulge, arg_cores] proc=...
3
votes
3answers
2k views

Problem using LAStools in QGIS 2.6.1: “global name 'os' is not defined”

I have a problem with LAStools in QGIS 2.6.1. I have never used QGIS to process LiDAR data before. I downloaded LAStools yesterday from the rapidlasso GmbH website. I unzipped the “lastools.zip” ...
3
votes
2answers
874 views

wine + LAStools in QGIS 2.8.1, Ubuntu 14.04

I can't get wine + LAStools to work in QGIS 2.8.1 (ubuntu 14.04). I only get the 22 open source functions that comes with QGIS. Outside qgis wine + LAStools works fine. My guess is that I am not ...
3
votes
2answers
629 views

Clipping from a tiled LAS dataset with LASTools (for ArcGIS)

I have huge amounts of lidar data stored as tiled datasets per project. The "tiles" are separate LAS files based on our national map sheet setup (800 by 600 meter). To keep an overview of the data I ...
2
votes
1answer
61 views

Finding the origin in .laz file with LAStools

I obtained a .laz file, which I used lasinfo and las2txt to view the records. Scale Factor X Y Z: 0.00100000000000 0.00100000000000 0.00100000000000 Offset X Y Z: 22717....
2
votes
1answer
75 views

Merging more than 9 input files with lasmerge?

Is there a possibility to feed more than 9 LAS files to lasmerge tool? The user interface only allows 9 LAS files from LAStools toolboxes in QGIS or ArcGIS, but at liblas.org it’s described as there ...
2
votes
2answers
334 views

Running LAStools on QGIS 2.8: “missing dependency. lastools folder is not configured”

To be honest I'm not sure how to run LAStools from within QGIS 2.8. I'm trying to learn by experimentation. QGIS shows all the LAStools in the toolbox If I double click on a LAStool in the toolbox I ...
2
votes
1answer
142 views

How to remove las2dem streaks from raster DEM?

I've created a series of DEM files using the las2dem tool from LAStools; however since I don't have a licensed version they have black streaks running across them. Does anyone know a good method for ...
2
votes
1answer
79 views

Using lastile in QGIS

I want to tile one large las tile into a few minor. But I just can't get it done. My original las file have around 30 million points and I want to get 6 smaller las files with 5 million points in ...
2
votes
2answers
151 views

Using python to batch process lasclip - LAStools/QGIS

I am trying to use the python console to batch quite a few processes from lastools. I'm having trouble with the arguments to lasclip. clipped_las = processing.runalg('lidartools:lasclip', True, ...
2
votes
0answers
81 views

LAStools in QGIS 2.8.5: “missing dependency. lastools folder is not configured” [duplicate]

I am using QGIS 2.8.5 Wien and I am trying to install LAStools toolbox. I followed the instructions in rapidlasso.com to install it. I did everything said on the link, but when I tried to run it, it ...
2
votes
0answers
63 views

QGIS 2.12 LAStools lasmerge error: “no outputs specified” [closed]

I am trying to merge 4 .las files with "lasmerge" within "LAStools" in QGIS 2.12 running Windows 7 64. I keep on geting error "no outputs specified" even thoug i did specify the output folder and ...
1
vote
2answers
102 views

Coordinate transformation in LAStools?

LAStools program only limited to UTM platform for coordinate transformation (las2project, las2transform). Is there any other ways to transform coordinate for local projection in LAStools? For example ...
1
vote
2answers
48 views

Can't normalize LiDAR point cloud with lasheight and -replace z (LAStools)

When I try to use lasheight with -replace z to normalize the point cloud, the height of points are changed (destroyed heights; see pictures below). Without using -replace z everything is ok, but the ...
1
vote
1answer
35 views

Filtering LiDAR data with las2las by scan angle range?

I am using las2las to filter .las data and I would like to filter the data between a scan angle of -15:+15; however the algorithm tells me the following: ? error bad lexical cast: source type ...
1
vote
1answer
302 views

LAStools in QGIS error at activation: “wrong value for parameter 'OTB applications folder'…”

I have a problem with LAStools in QGIS 2.14. I've followed the LAStools instructions for downloading LAStools for QGIS. ` I replaced 'lidar' folder in C:\OSGeo4W64\apps\qgis\python\plugins\processing\...
1
vote
1answer
136 views

Using lasmerge in QGIS 2.8.3 is not working: “…instance has no attribute”

Every time I try running lasmerge tool from LASTools within QGIS, I get the following error message: Algorithm lasmerge starting... lasmerge instance has no attribute '...
1
vote
1answer
38 views

LAStools blast2dem: error writing data for field “StripOffsets”

I was processing an overage file to generate DTM and DSM using blast2dem. The generated DTM file can be viewed using ArcMap and ENVI. However, ArcMap and ENVI cannot open the generated DSM file. I don'...
1
vote
0answers
72 views

Las tools vs Geocue for LAS1.3 processing [closed]

I am a user of terra solid products. I have las1.3 data set which i need to perform whole processing in 1.3 version. (I need to supply WDP informtaion and classified las dataset as well. So I afraid, ...
0
votes
2answers
1k views

Create DEM with 1 foot contours from lidar data with 1.4 meter resolution

I have Lidar data which contains multiple .las files for an entire quad. I have figured out which .las is the area I am looking for. I was told the data is in 1.4 meter resolution and would work to ...
0
votes
1answer
315 views

Gridding a LiDAR point cloud? [duplicate]

I have been trying to grid a point cloud, version1.2, LiDAR datasets which are intended to be used for hydraulic simulation of flood propagation. Already, I have used Arc* to work on the traditional (....
0
votes
1answer
94 views

LAStools (3D Analyst) scale factor application

I'm trying to use the las2las (transform) module from the LASTools toolset to apply a scale factor to an LAS dataset. The problem is that the client wants us to apply the scale factor from a known XY ...
0
votes
0answers
13 views

laszip batch process in qgis extension lastool

i am using qgis 2.16 in that lastool plugin contains laszip option. please tell how to run batch process in laszip. ill not able to add multiple files at a time in batch process.result came only for ...
0
votes
1answer
30 views

Batch process for LASZIP

I am using QGIS2.16 version.I added Las tools plugin and executed batch process, in that i have to provide each file name in the output field.is there any automatic process for to get output with the ...
0
votes
1answer
14 views

using Lastool QGIS and I cant find the “LAStool”I need

I am trying to make a DEM from a las file. I have installed the Lastool directory and have the plugin I am wanting to use the Lasview algorithm but I cant see it in the standard toolbox I ...
0
votes
0answers
26 views

Activating LAStools - 'wrong value for parameter “Msys folder”' [duplicate]

Whenever I try to activate LAStools, I get the following error, despite setting the path as /Users/grant/LAStools/ - which is its actual location: Wrong value for parameter "Msys folder": ...
0
votes
0answers
375 views

Processing LAS dataset in QGIS 2.8.2 [duplicate]

I need to extract DEM from LIDAR dataset in QGIS 2.8.2. I have installed LAS tools in QGIS. I cannot configure my LAStools because I do not get Processing-->Options and Configuration and instead I get ...