Forest-gaps-and-edges-detection.md

+This tutorial presents R code for forest gaps and edges detection from Airborne Laser Scanning (ALS) data. The workflow is based on functions from packages `lidaRtRee` and `lidR`.
+
+
+The following files are provided:
+* [Rmarkdown source](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/blob/master/coregistration.Rmd),
+* [**Forest gaps and edges detection tutorial in html**](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/raw/master/export/coregistration.html?inline=false),
+* [Forest gaps and edges detection tutorial in pdf](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/blob/master/export/coregistration.pdf),
+* a [bibliography file](https://gitlab.irstea.fr/jean-matthieu.monnet/lidartree_tutorials/-/blob/master/bib/bibliography.bib)
+* datasets required to run the source code are also available on the repository.
+
+Change log
+* Jan 2021: updated to comply with lidR 3.1.0 and lidaRtRee 3.0.0
+* Oct 2020: checked compatibility with lidR 3.0.3
+* May 2020: added edge detection
+* Feb 2019: updated for compatibility with package lidR 2.0.0 and lidaRtRee 2.0.0
+* June 2018: first version