yasevplaton / test-python-node

Test python-node task

by Platon Yasev

First of all you have to install the last stable version of Node.js & NPM and pip. I've used Node 15.0.0, npm 7.0.2, pip 20.2.4, python 3.9.0

Then copy the project and go to the folder

$ git clone https://github.com/yasevplaton/citorus-test-python.git
$ cd citorus-test-python

Install all dependencies for Node.js

$ npm i

If you use UNIX system install several packages via homebrew

$ brew install proj gdal spatialindex

Create intersect-module-env environment, activate it and install all requirements for python

$ python3 -m venv intersect-module-env && source intersect-module-env/bin/activate && pip install -r requirements.txt

Start up the server on http://localhost:3000/

$ node server.js

Use a simple web-server for frontend testing. I've used "Live Server" VSCode extension. You can use it also or install simple http-server and start it in another bash console.

$ npm install http-server -g
$ http-server

Your web-server will start on some port (you can find the port number in the console). Go to the address in your browser (I've tested this only in Google Chrome). You will see a simple map with initial layers and button 'Clip data'. Click the button and the output intersection layer will appear in a few seconds. You can click on each polygon and find out its area in square meters calculated in Web-Mercator (EPSG 3857) projection.