A containerized Flask application serving potree to extract height profile from LiDAR data.
Credit goes to M. Schuetz for the development of CPotree.
You will need docker and docker-compose to run the application.
Context of pytree
Clone this repository on your machine.
Then, create your .env file with a DEPLOY_ENV variable set to either DEV
or PROD, a PORT variable specify which port of your host machine you want to use,
and a DATA_DIR variable containing the absolute path to the directory containing
your metadata.json file for your Potree LiDAR tiles (generated using PotreeConvert v2.x.x).
Check .env.sample for inspiration.
Thirdly, copy example_config.yml to pytree.yml and make sure to adapt the variable to your environment.
Especially adapt the following four variables:
- cpotree_executable
- pointclouds
- default_point_cloud
Finally run the 2 following commands:
docker-compose down --remove-orphans -v
docker-compose up
In order to update to the last version of CPotree, you'll need to compile the new version. This is possible by building a new pytree image: docker build -t sitn/pytree:<tag_version> .
Replace <tag_version> by whatever version you want and if it's working you can push it to docker hub and update the docker-compose.yml accordingly (image with new tag you just created).
The first time you use your Debian WSL distro:
sudo apt-get update
sudo apt-get install docker.io
Then, you will have to mount your share where metadata.json can be found. To do so, edit the fstab file:
sudo vi /etc/fstab
And add your Window share. this might look like something:
//windows_share/pointclouds /mnt/pointclouds cifs user=windows_username,password=windows_password 0 0
Then, in your mnt folder, create a pointcloud folder:
sudo mkdir pointcloud
sudo mount -a
From one time to the other, you might have to rerun sudo mount -a in order to mount the share.
All Docker cmd have to be run in sudo mode.
The application runs at http://localhost:6001/pytree
Please chek https://github.com/potree/CPotree/blob/master/README.md for a comprehensive list of valid URL parameters to get a LiDAR profile.
You can also start a shell to further explore inside the running container and play around with the executable:
docker exec -it pytree_api_1 bash
Then execute extract_profile:
extract_profile data/processed/metadata.json -o "stdout" --coordinates "{2525528.12,1185781.87},{2525989.37,1185541.87}" --width 10 --min-level 0 --max-level 5 > data/output/test.las