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Questions tagged [liblas]

libLAS is a C/C++ library for reading and writing the very common LAS LiDAR format.

libLAS is a C/C++ library for reading and writing the very common LAS LiDAR format. The ASPRS LAS format is a sequential binary format used to store data from LiDAR sensors and by LiDAR processing software for data interchange and archival. See Features for more details on what libLAS can provide a LiDAR software developer. See Getting Started with libLAS for how to get started using the library.

libLAS’ initial development was supported in 2007-2008 by the IGSB of the Iowa DNR for use in its state-wide LIDAR project. Ongoing support for libLAS is provided by a number of organizations including the U.S. Army Cold Regions Research and Engineering Laboratory.

libLAS builds upon by Martin Isenburg and Jonathan Shewchuk of LLNL/UC Berkeley in their LAStools project to do a number of things. First, the libLAS focuses almost completely on providing an easy-to-program-with library for software developers wishing to implement the LAS specification in their own software. libLAS is a building block for developers looking to implement their own LiDAR data processing when working with ASPRS LAS data.

Home: http://www.liblas.org/

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Debug Assertiong Failed! Expression :__acrt_first_block==heap.cpp

I am resampling the point cloud with laslib library on VS2017.The following error occurred after running in the Debug environment.I have tried to adjust the runtime in the property sheet to "multi-threaded debugging DLL(/MDd)", but this error still…
paobukuaideluozi
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How can I install pdal or liblas on google colab?

I need to read .las file and to run the code via google colab. I have tried several libraries as lilbas and pdal. However when trying to import them, I have some errors that I have difficulties to solve. In order to install the libraries, i have…
AnneSo
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problem in reading las file using liblas and laspy in python

I pip installed liblas, which got installed perfectly, but still, when I'm trying to import liblas it's raising an error which is shown in the 1st error. then I pip installed laspy, which installed perfectly and tried to read my las file from that…
user10867289
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Noise removel in laidar data

I have a Lidar data in .las file and i want to remove Noise from IT ? is this is possible in open sources tools i.e las tool ,LibLas or any other open source , Because my finding are we can achieve this in point cloud library using .pcd file…
ahmad735
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Using Openblas with R in Reproducible R container

I am using R for a reproducible scientific machine learing & hyperparameter optimizations. I stumble upon the fact that other implementations of blas such openblas/atlas/klm can speedup this costly optimization. But results are slightly different…
aminevsaziz
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PCL: Flatten ground plane but keep distance over the ground

From LiDAR data I have separated ground and non-ground points with PMF. Now I want to flatten all the ground points (z = 0) but keep the distance above the ground for all non-ground points. This can be done in LASTools with LASground -replace_z.…
Schmidt
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How to get a minimum and maximum point from a las file ?

I wish to get the minimum and maximum point from a las file. Following the documentation, I could read and write a .las file. However, I couldn't get idea how to get the minimum and maximum points. I could get minimum or maximum x ,y ,z…
Harke
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LibLas crashes when setting spatial reference manually

I am trying to set the spatial reference manually, but it is crashing. std::ofstream ofs; liblas::Header header; liblas::SpatialReference srs; srs.SetFromUserInput("EPSG:4326"); // It crashes…
user1705996
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Compiling Liblas

I am trying to install the library libLAS. I’m working with Microsoft Visual Studio 2010 , windows 7 and Cmake 2.8.10.2 . So far I’ve Installed Boost 1.51 and I followed this…
Yellaine
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fix PYTHONHOME in order to import liblas module in Python

I have the following error message on windows 64-bit and Python 2.7. the liblas module version is libLAS-1.7.0.win-amd64-py2.7.‌exe import liblas Traceback (most recent call last): File "", line 1, in File…
Gianni Spear
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Is there a library that can handle LIDAR data in Windows Python?

I'm looking for a library that can manipulate .liblas data in windows. I'm using windows 10, and my anaconda python version is 3.7. Any help will be appreciated.
Noman Tanveer
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Why i am in getting undefined refrence error after linking liblas to Qt?

I am trying to link liblas library to Qt.I am using following code in .pro file to link it. //////////////code to link liblas to Qt///////////////////////////////// win32:CONFIG(release, debug|release): LIBS +=…
Neeraj Shukla
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Save Las points into a las file: argument error and indexerror

I have this little code for manipulating lidar points in a Las file. The goal is to take 1 point from file 1 and look for the closest point in the file 2. Then create a new point which using the coordinates of the points and then save it. I…
Gary
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