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rapidlasso - fast tools for fun with LiDARs

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Michael Perdue, rapidlasso LAStools2

Aug 7

Creating compound WKT string from vertical epsg

Hi Mike, thanks for this information. We are currently extend the WKT/WKT2 logic, also to provide a

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Creating compound WKT string from vertical epsg

Hi Mike, thanks for this information. We are currently extend the WKT/WKT2 logic, also to provide a

Aug 7

Roni Lindholm, … Jochen Rapidlasso6

Aug 5

blast2dem produces nodata pixels despite buffer

Hi, Just following up, is there any updates on this? I downloaded the latest LAStools binaries and

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blast2dem produces nodata pixels despite buffer

Hi, Just following up, is there any updates on this? I downloaded the latest LAStools binaries and

Aug 5

Jul 29

Hello, I recently started playing with the las2dem_new program and comparing its performance to the

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Hello, I recently started playing with the las2dem_new program and comparing its performance to the

Jul 29

Erkko, Terje Mathisen3

Jul 28

lastile buffer cant be larger then tilesize

As a data producer I do not think this is an option. The customers wont be happy if I downsample the

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lastile buffer cant be larger then tilesize

As a data producer I do not think this is an option. The customers wont be happy if I downsample the

Jul 28

Tom Hopkins, … Shafaat Tahir3

Jul 22

Error Message on QGIS 4.03 using Mac OS

thats helpful for everyone thanks for it On Sun, 12 Jul 2026, 10:33 pm rapidlasso LAStools, <

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Error Message on QGIS 4.03 using Mac OS

thats helpful for everyone thanks for it On Sun, 12 Jul 2026, 10:33 pm rapidlasso LAStools, <

Jul 22

Malcolm Williamson, rapidlasso LAStools3

Jul 2

problems with negative intensity values

Hi Jochen, Thanks, I see your point. From my perspective, txt2las is an import tool, and the more

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problems with negative intensity values

Hi Jochen, Thanks, I see your point. From my perspective, txt2las is an import tool, and the more

Jul 2

Bobby Riley, Silke Kämmerer3

Jun 18

SPCS2022 and GEOID2022 support

Thank you, Silke. I appreciate the feedback. Bobby Sent from my iPhone. Please excuse brevity and

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SPCS2022 and GEOID2022 support

Thank you, Silke. I appreciate the feedback. Bobby Sent from my iPhone. Please excuse brevity and

Jun 18

Spencer Floyd, Jochen Rapidlasso5

Jun 10

Does -kill Use 3D or 2D Distances?

Hi Jochen, Thanks for adding this. I did some tests of my own on the same lake.laz file. I can

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Does -kill Use 3D or 2D Distances?

Hi Jochen, Thanks for adding this. I did some tests of my own on the same lake.laz file. I can

Jun 10

duncan allen, Jochen Rapidlasso4

Jun 10

lasinfo64 "histogram of classification of points"

Hi Duncan, we fixed this problem. lasinfo64 -i lake.laz -json will output to console, include

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lasinfo64 "histogram of classification of points"

Hi Duncan, we fixed this problem. lasinfo64 -i lake.laz -json will output to console, include

Jun 10

johnso...@gmail.com, LAStools - efficient tools for LiDAR processing3

Jun 5

las2dem_new - ERROR: cannot understand argument '-grid_center'

Push. Guessing not many users use this option? On Fri, May 8, 2026 at 10:01 AM LAStools - efficient

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las2dem_new - ERROR: cannot understand argument '-grid_center'

Push. Guessing not many users use this option? On Fri, May 8, 2026 at 10:01 AM LAStools - efficient

Jun 5

Mauro Assis, … Jochen Rapidlasso6

Jun 1

LASValidate fail report: file creation day should be between 1-152 not 186

Hi Mauro, we will refine the error message to make that a little clearer. Cheers, Jochen @rapidlasso

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LASValidate fail report: file creation day should be between 1-152 not 186

Hi Mauro, we will refine the error message to make that a little clearer. Cheers, Jochen @rapidlasso

Jun 1

Eyal, … LAStools - efficient tools for LiDAR processing4

May 28

The loaded PROJ version could not be determined from library name 'proj_e.dll

Hi Eyal, once the OSGeo4W installation is found — as is the case for you — it should run without any

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The loaded PROJ version could not be determined from library name 'proj_e.dll

Hi Eyal, once the OSGeo4W installation is found — as is the case for you — it should run without any

May 28

Bobby Riley, Jochen Rapidlasso4

May 27

Classify points above and within a 3D polygon plane

Thank you for the feedback, Jochen. Bobby On Saturday, May 23, 2026 at 11:26:29 AM UTC-4 Jochen

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Classify points above and within a 3D polygon plane

Thank you for the feedback, Jochen. Bobby On Saturday, May 23, 2026 at 11:26:29 AM UTC-4 Jochen

May 27

Eyal, … Jochen Rapidlasso8

May 26

tiff file from lasgrid output to, does not have a CRS

Hi Eyal, try both options, compare the results, and decide which one works best for your needs. Note:

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tiff file from lasgrid output to, does not have a CRS

Hi Eyal, try both options, compare the results, and decide which one works best for your needs. Note:

May 26

Bobby Riley, Jochen Rapidlasso3

May 20

RECLASSIFY POINTS INSIDE POLYGON WITHOUT CREATING NEW FILE

I very much appreciate the quick response, Jochen! Enjoy your day. Bobby On Wednesday, May 20, 2026

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RECLASSIFY POINTS INSIDE POLYGON WITHOUT CREATING NEW FILE

I very much appreciate the quick response, Jochen! Enjoy your day. Bobby On Wednesday, May 20, 2026

May 20

Wes Toews, Jochen Rapidlasso2

Apr 20

Scaling working units from meters to feet

Hi Wes, thanks for the sample. As soon as you use the proj library all CRS calculation is done there.

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Scaling working units from meters to feet

Hi Wes, thanks for the sample. As soon as you use the proj library all CRS calculation is done there.

Apr 20

Apr 11

LAS Canopy above

Hi, I am trying to used the lascanopy to yield elevation grids classes to be of above values: 0, 2,5,

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LAS Canopy above

Hi, I am trying to used the lascanopy to yield elevation grids classes to be of above values: 0, 2,5,

Apr 11

Alejandro Hinojosa, Jochen Rapidlasso4

Apr 5

Hi Alejandro, thanks for the feedback! Its good to hear that the somewhat newer HSL/HSV color

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Hi Alejandro, thanks for the feedback! Its good to hear that the somewhat newer HSL/HSV color

Apr 5

Malcolm Williamson, rapid...@gmail.com2

Apr 1

problems with txt2las64

Hi Malcolm, we do not think that something is broken, rather that your file is not as we expect. Can

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problems with txt2las64

Hi Malcolm, we do not think that something is broken, rather that your file is not as we expect. Can

Apr 1

Silke Kämmerer

Mar 27

lasvalidate: redesign including LAS 1.5 and WKT support

Hi all, our open-source tool lasvalidate performs the important task of checking whether LAS/LAZ

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lasvalidate: redesign including LAS 1.5 and WKT support

Hi all, our open-source tool lasvalidate performs the important task of checking whether LAS/LAZ

Mar 27

jean.franc...@gmail.com, … rapid...@gmail.com3

Mar 27

Using lasvdatum to change vertical datum without intermediate files

Hi Jean Francois, to avoid temporary files you can also use LAStools with pipes (stdout/stdin):

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Using lasvdatum to change vertical datum without intermediate files

Hi Jean Francois, to avoid temporary files you can also use LAStools with pipes (stdout/stdin):

Mar 27

Jorge Rodríguez, Jorge Delgado García2

Mar 12

Cleaning a .laz point cloud to obtain a DTM of only the ground

You can check ... https://rapidlasso.de/clean-dtm-from-agisoft-photogrammetric-points-of-urban-scene/

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Cleaning a .laz point cloud to obtain a DTM of only the ground

You can check ... https://rapidlasso.de/clean-dtm-from-agisoft-photogrammetric-points-of-urban-scene/

Mar 12

Silke Kämmerer, GeoViz4

Mar 12

NEW TOOL: las2dem_new64

UPDATE: The hillshade issue was fixed with yesterday's release (260311). Cheers, Silke Silke

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NEW TOOL: las2dem_new64

UPDATE: The hillshade issue was fixed with yesterday's release (260311). Cheers, Silke Silke

Mar 12

Monika Papartė, rapid...@gmail.com3

Mar 5

Subcircle option

Hello Jochen, Sorry for the very late reply. Other projects took priority and I only recently

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Subcircle option

Hello Jochen, Sorry for the very late reply. Other projects took priority and I only recently

Mar 5

Tobias Leppla, Jochen Rapidlasso2

Feb 14

UTM32 coordinates

Hi Tobias, las2las64 or las2txt64 is build to convert LIDAR data into a text format. To export xyz

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UTM32 coordinates

Hi Tobias, las2las64 or las2txt64 is build to convert LIDAR data into a text format. To export xyz

Feb 14

Andreas, Andreas....@heidelberg.de3

Jan 27

lasmerge64 don't write empty files

Hi Jochen, perfectly. Thanks a lot! Best regards, Andreas Von: last...@googlegroups.com <lastools

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lasmerge64 don't write empty files

Hi Jochen, perfectly. Thanks a lot! Best regards, Andreas Von: last...@googlegroups.com <lastools

Jan 27

Wes Toews, … Wes Toews5

Jan 14

lasvdatum, epsg codes and proj geodetic database

Yes Jochen that is a clear explanation thank you. I guess I got too excited, but, lasvdatum should

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lasvdatum, epsg codes and proj geodetic database

Yes Jochen that is a clear explanation thank you. I guess I got too excited, but, lasvdatum should

Jan 14

suzuki kuo, Jochen Rapidlasso3

Jan 7

half-pixel shift while using demzip convert tif to RasterLAZ

Hi Jochen , Thank you very much for your help. I will try and take your advice. Cheers, suzuki Jochen

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half-pixel shift while using demzip convert tif to RasterLAZ

Hi Jochen , Thank you very much for your help. I will try and take your advice. Cheers, suzuki Jochen

Jan 7

Paul Ripert-Benoit, … Jochen Rapidlasso6

12/31/25

Error with Wine

Hi Paul, if the "wine" file is in this directory this is perfect. The problem probably is,

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Error with Wine

Hi Paul, if the "wine" file is in this directory this is perfect. The problem probably is,

12/31/25

Silke Kämmerer, Peter Guth3

12/31/25

Hi Peter, Indeed, that always takes a while. You can easily create LAS/LAZ 1.5 files using the (open-

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Hi Peter, Indeed, that always takes a while. You can easily create LAS/LAZ 1.5 files using the (open-

12/31/25

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