This post is obsolete. Please see the updated blog entry:
The more complex installation instructions are only relevant for older QGIS versions. Starting with QGIS 2.10 or newer you can skip directly to step 4 and disregard most of step 6:
We had an ArcGIS LiDAR processing toolbox since April 2012 and now we have one for QGIS as well. It has been tested successfully with QGIS 1.8.0-Lisboa, 2.0.1-Dufour, 2.2.0-Valmiera, and 2.4.0-Chugiak. Download and install QGIS. For version 2.2.0-Valmiera and older follow all the steps. Do not delete or copy any files for the newest version 2.4.0-Chugiak but skip directly to step 4 and disregard most of step 6:
- If you already started QGIS then exit the application.
- Delete (or rename) the entire folder „C:\Program Files\QGIS Valmiera\apps\qgis\python\plugins\processing\lidar“.
- Put the „.\lidar“ folder that is inside this ZIP file into its place. This ZIP file only works for QGIS 2.2.0-Valmiera. For QGIS 2.0.1-Dufour you need to use the contents of this ZIP file instead. And for QGIS 1.8.0-Lisboa use this ZIP file and delete the folder „C:\Users\Martin\.qgis\python\plugins\sextante\lidar“ instead.
- Get the most recent version of LAStools by downloading the 36 MB „LAStools.zip“ file.
- Drag and drop (or extract) the „.\LAStools“ folder from inside the ‚LAStools.zip‚ file such that there is no space in the path (e.g. bad: „C:\Program Files\LAStools“, good: „D:\software\LAStools“).
- Start QGIS. If there is a Python script error carefully repeat steps 1 to 3.
- Turn on the „Processing Toolbox“ as shown below.
- Switch the processing toolbox from „Simplified Interface“ to „Advanced Interface“ as shown below.
- Open the „Options and configuration“ sub menu of „Processing“ as shown below.
- Check the „Activate“ button for „Providers->Tools for LiDAR data“ and fill in the path to your local LAStools folder as shown below. Type or copy & paste the path to LAStools (as the browse popup is broken). Press <strong>ENTER</strong> after entering the path so the field is greyed out again <em>before</em> clicking <strong>OK</strong>.
- Now you should see the „Tools for LiDAR data“ in the toolbox and all the LAStools as shown below.
- Start lasground via double click and fill in the settings as shown below.
- Look at the file you just created by running lasview from the toolbox. Yay!
- Create this with two quick calls to las2dem and las2iso … sooo easy.
Kudos to Victor Olaya for creating this whole framework and providing me with example scripts for a simple LAStools toolbox that I just had to modify … (-: