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?
Attribute Filter
  • 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?

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