Free LAS Viewers

A freeware code written in C# to view LAS depth based files. It supports version 2 LAS only. Later release will be able to read version 3 also.

This code is written in C# and will require .Net Framework version 2 for execution. Plots can be saved in TIF or PPM formats.

Attachments

Las_Verifier_Plotterr.zip

Here is the standalone executable. Program needs .Net Framework for execution (which normally every Windows based PC has these days)

(20.7 KiB) Downloaded 2971 times

mittaltarsem,

Great stuff. thanks! Will check it out soon and see how it works...

I don't think that Schlumberger BlueView is able to view LAS. However, Schlumberger DataView is able to view LAS as well as DLIS and CSV.

http://www.slb.com/services/characteriz ... aview.aspx

How did you parse the las files with the c# .net app?

Thanks!

1. Read a line of data. (lets say in string "linedata")
2. linedata= linedata.Trim()
3. linedata = linedata.Replace('\t', '')
4. index = linedata.IndexOf(' ')
5. data = linedata.Substring(0, index) ; datadouble = Double.Parse(data)
6. linedata = linedata.Substring(index)
7. repeat until linedata reads last data.

hope this helps.

Thanks!

Did you ever manage to update your code to support 3.0?

Also. do you have the code by any chance?

I am just trying to convert a las file to a neat looking ascii file.

I never got the time again to work on LAS3.

It would be a task to separate the code so that it converts las to ascii.

I've been quietly been working on an open source cross platform lidar viewer "displaz" for a couple of years now, and I think it's starting to get quite functional. See

Here's the summary from the readme:

displaz is a cross platform viewer for displaying lidar point clouds and derived artifacts such as fitted meshes. The interface was originally developed for viewing large airborne laser scans, but also works quite well for point clouds acquired using terrestrial lidar and other sources such as bathymetric sonar.

The goal is to provide a flexible and programmable technical tool for exploring large lidar point data sets and derived geometry.

* Open point clouds up to the size of main memory. Performance remains interactive as the number of points becomes too large to draw in a single frame.
* Create custom point visualizations. The OpenGL shader can be edited interactively. In the shader program, you automatically have access to any per-point attributes defined in the input file. Shader parameters are connected to user-defined GUI controls.
* Plot interactively from your favourite programming language. Displaz IPC lets you script the interface from the command line. Experimental language bindings are available for C++, python, julia and Matlab.

Development is occurring here: