Exercise: Introduction to LidR

Data acquisition

Please download “Lidar Data Lahntal” from the Ilias course directory “data” and save it in your project structure. It may be advisable to create a subdirectory in your data folder for all the upcoming LiDAR processing.

LidR

If not already done, install the lidR package
Load the Lahntal LiDAR data into R

Visual data exploration

Plot the LiDAR data
Plot the LiDAR data again, but experiment with different columns for the coloring of the points
What information could you gain from these plots?

Filter the LiDAR data. Only keep points below an intensity value of 300
Plot them. What points are these? What could you do with those points?

Data acquisition

LidR

Visual data exploration

Attribute Filter