This data collection enables any user to reproduce the study Hämmerle et al. (2017). It provides the source code to compile the applied simulation framework. Furthermore, a precompiled version of the software including the necessary files are provided so that a direct start of the simulation without compilation is possible. The output of the simulation (ASCII point clouds) is also provided. For details see the provided README.txt file. The main aim of the study was to examine different laser scanning campaing setups with respect to understory tree height representation which is important, for example, for forestry or climate research.