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NodeODM

NodeODM is a standard API specification for processing aerial images with engines such as ODM. The API is used by clients such as WebODM, CloudODM and PyODM. This repository contains a performant, production-ready reference implementation written in NodeJS.

Getting Started

We recommend that you setup NodeODM using Docker.

From the Docker Quickstart Terminal (Windows / OSX) or from the command line (Linux) type:

docker run -p 3000:3000 opendronemap/nodeodm

If you're on Windows/OSX, find the IP of your Docker machine by running this command from your Docker Quickstart Terminal:

docker-machine ip

Linux users can connect to 127.0.0.1.

Open a Web Browser to http://<yourDockerMachineIp>:3000
Load some images
Press "Start Task"
Go for a walk :)

If the computer running NodeODM is using an old or 32bit CPU, you need to compile OpenDroneMap from sources and setup NodeODM natively. You cannot use docker. Docker images work with CPUs with 64-bit extensions, MMX, SSE, SSE2, SSE3 and SSSE3 instruction set support or higher. Seeing a Illegal instruction error while processing images is an indication that your CPU is too old.

API Docs

See the API documentation page.

Run Tasks from the Command Line

You can use CloudODM to run tasks with NodeODM from the command line.

Using an External Hard Drive

If you want to store results on a separate drive, map the /var/www/data folder to the location of your drive:

docker run -p 3000:3000 -v /mnt/external_hd:/var/www/data opendronemap/nodeodm

This can be also used to access the computation results directly from the file system.

Run it Natively

If you are already running ODM on Ubuntu natively you can follow these steps:

Install Entwine: https://entwine.io/quickstart.html#installation
Install node.js, npm dependencies and 7zip:

sudo curl --silent --location https://deb.nodesource.com/setup_6.x | sudo bash -
sudo apt-get install -y nodejs python-gdal p7zip-full
git clone https://github.com/OpenDroneMap/NodeODM
cd NodeODM
npm install

Start NodeODM

node index.js

You may need to specify your ODM project path to start the server:

node index.js --odm_path /home/username/OpenDroneMap

If you want to start node ODM on a different port you can do the following:

node index.js --port 8000 --odm_path /home/username/OpenDroneMap

For other command line options you can run:

node index.js --help

You can also specify configuration values via a JSON file:

node index.js --config config.default.json

Command line arguments always take precedence over the configuration file.

Run it using PM2

The app can also be run as a background process using the pm2 process manager, which can also assist you with system startup scripts and process monitoring.

To install pm2, run (using sudo if required):

npm install pm2 -g

The app can then be started using

pm2 start processes.json

To have pm2 started on OS startup run

pm2 save
pm2 startup

and then run the command as per the instructions that prints out. If that command errors then you may have to specify the system (note that systemd should be used on CentOS 7). Note that if the process is not running as root (recommended) you will need to change /etc/init.d/pm2-init.sh to set export PM2_HOME="/path/to/user/home/.pm2", as per these instructions

You can monitor the process using pm2 status.

Test Mode

If you want to make a contribution, but don't want to setup OpenDroneMap, or perhaps you are working on a Windows machine, or if you want to run automated tests, you can turn test mode on:

node index.js --test

While in test mode all calls to OpenDroneMap's code will be simulated (see the /tests directory for the mock data that is returned).

Test Images

You can find some test drone images here.

What if I need more functionality?

NodeODM is meant to be a lightweight API. If you are looking for a more comprehensive solution to drone mapping, check out WebODM, which uses NodeODM for processing.

Contributing

Make a pull request for small contributions. For big contributions, please open a discussion first. Please use ES6 syntax while writing new Javascript code so that we can keep the code base uniform.

Roadmap

See the list of wanted features.

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