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I am looking for an application that will allow me to draw a box or polygon on a map and then export the definition in a PostGIS database so that I can insert it into my own database.

Currently, my approach is to open Google Earth, find the latitude, longitude, and elevation points that define the box on a map, and then construct a string that can be inserted into a database (similar to this approach using R).

Is there a web application that provides both the GUI front end for drawing polygons and how these polygons are defined as PostGIS geometry data types?

I assume QGIS or ArcGIS have this functionality, but I am looking for something much simpler.

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  • I would recommend QGIS but it seems your asking for a web application so I'm commenting instead of answering. – Tom Aug 12 '16 at 2:07
  • You could also try uMap, it gives you a web interface for drawing shapes on a map. It can export in GeoJSON, GPX or KML, maybe one of those could be converted to PostGIS? – vclaw Aug 14 '16 at 11:31
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If you are looking for a solution that works in a web interface (to allow edits in a browser to be added to your server based database) you should look at GIS server software that provides Transactional Web Feature Service capabilities (WFS-T).

For example you could use GeoServer, or TinyOWS

You can use WFS-T services in conjunction with desktop GIS software like QGIS, or you can use them with web clients, such as those built in OpenLayers

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