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ArcGIS JavaScript API Camera Helper

In a custom web map app, when creating your initial view, you usually start with the x/y (latitude/longitude) and an initial zoom level. When creating 3D web map apps that’s a bit harder, because you have to worry about the camera tilt and heading too. To make this process easier, I recently shared a little […]

Top 5 Interesting Basemaps of 2019

5. Charted Territory This basemap takes its inspiration from a printed atlas plate and pull-down scholastic classroom maps. (more details) Avo Patlong took this basemap and modified it into a “1950s styled” version. 4. Western Map Elizabeth Sutherland at the Western University of Canada created this map in the style of the WU school colors. […]

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 […]

National Park System

If you look at all the National Parks across the US, there are about 60: The National Park Service manages many more “park units” other than just the officially-designated “National Parks.” These include things like National Lakeshores, National Monuments, National Parkways, National Preserves, etc. In total there are about 400 units across the US: The […]

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Gavin Rehkemper

JavaScript, WordPress, and GeoDev