Plotter is a web application running in the browser. It allows you to create and edit map features in the form of lines, polygons, circles and markers and save the results as a GeoJSON file.

The application is available at https://www.trafforddatalab.io/plotter/ and the documentation can be accessed at https://www.trafforddatalab.io/plotter/documentation.html.

It uses the following technologies:

• Leaflet JS JavaScript mapping library
• Lab_leaflet our Leaflet JS wrapper library
• Leaflet.reachability our reachability Leaflet plugin which uses the isochrones API from OpenRouteService
• Leaflet.draw Leaflet plugin
• Leaflet.Locate Leaflet plugin
• Alertify JavaScript framework
• OpenStreetMap raster tiles
• CartoDB raster tiles
• Esri raster tiles