Land cover mapping project

This repository holds both the "frontend" web-application and "backend" web API server that make up our "Land Cover Mapping" tool. An instance of this tool may be live here.

Project setup instructions

• Open a terminal on the machine
• Install conda (note: if you are using a DSVM on Azure then you can skip this step as conda is preinstalled!)

# Install Anaconda
cd ~
wget https://repo.anaconda.com/archive/Anaconda3-2019.07-Linux-x86_64.sh
bash Anaconda3-2019.07-Linux-x86_64.sh # select "yes" for setting up conda init
rm Anaconda3-2019.07-Linux-x86_64.sh

# logout and log back in
exit

• Install NVIDIA drivers if you intend on using GPUs; note this might require a reboot (note: again, if you are using a DSVM on a Azure GPU VM then this is also handled)
• Setup the repository and install the demo data

# Get the project and demo project data
git clone https://github.com/microsoft/landcover.git

wget -O landcover.zip "https://mslandcoverstorageeast.blob.core.windows.net/web-tool-data/landcover.zip"
unzip -q landcover.zip
rm landcover.zip

# unzip the tileset that comes with the demo data
cd landcover/data/basemaps/
unzip -q hcmc_sentinel_tiles.zip
unzip -q m_3807537_ne_18_1_20170611_tiles.zip
rm *.zip
cd ../../../

# install the conda environment
# Note: if using a DSVM on Azure, as of 7/6/2020 you need to first run `sudo chown -R $USER /anaconda/`

cd landcover
conda env create --file environment.yml
cd ..

Configure the web-tool

A few more steps are needed to configure the interactive web-tool.

• Create and edit web_tool/endpoints.mine.js. Replace "localhost" with the address of your machine (or leave it alone it you are running locally), and choose the port you will use (defaults to 8080). Note: make sure this port is open to your machine if you are using a remote sever (e.g. with a DSVM on Azure, use the Networking tab to open port 8080).

cp landcover/web_tool/endpoints.js landcover/web_tool/endpoints.mine.js
nano landcover/web_tool/endpoints.mine.js

• Edit self._WORKERS of the SessionHandler class in SessionHandler.py to include the GPU resources you want to use on your machine. By default this is set to use GPU IDs 0 through 4.

nano landcover/web_tool/SessionHandler.py

Running an instance of the web-tool

Whether you setup the server in an Azure VM or locally, the following steps should apply to start an instance of the server:

• Open a terminal on the machine and cd to the root directory (wherever/you/cloned/landcover/)
• python server.py local
  • This will start an HTTP server on :8080 that both serves the "frontend" web application and responds to API calls from the "frontend", allowing the web-app to interface with our CNN models (i.e. the "backend").
  • The tool comes preloaded with a dataset (defined in web_tool/datasets.json) and two models (defined in web_tool/models.json).
• You should now be able to visit http://<your machine's address>:8080/ and see the "frontend" interface.