Menu Sidebar
Menu

GIS

St. Louis Imagery – 1990 to Now

What kind of changes to the built environment happened in your city within the past 25 years? Looking at and comparing aerial imagery can be an informative and compelling way to investigate changes. In St. Louis, many large building developments have happened over the years including: The St. Louis Arena Demolition The building and opening […]

Published Web App

Last week Missouri got a lot of rain, which caused flooding in the Meramec river valley near St. Louis. I received a link to an ArcGIS Image Service that Surdex had created and provided that showed the flooding as of Tuesday 5/2. They flew this imagery as a service to the government and first responders, […]

Open Data in University City

I live in University City, MO, which has no crime. Don’t believe me? This map says so: Open Government The benefits of open government data – crime data being just one aspect of that – is well documented. It allows you and I to take the data the process it, innovate on it, be informed […]

Extending Widgets in ArcGIS Web AppBuilder

I’ve had many requests and ideas for Web AppBuilder widgets over the past few years, and many times they are ideas that are building on an existing widget. For example, a query widget that is custom to a particular workflow, an edit widget that enforces certain geometry movement restrictions, or maybe adding a few more […]

Older Posts

Gavin Rehkemper

JavaScript, WordPress, and GeoDev