A Brief Tutorial on Exploring the Open SGID with Open Source Python Tools (7 min)

The accompanying Python Notebook for this blog post can be found here on Google Colab.The Open SGIDThe introduction of the Open SGID has opened the door for new ways to explore Utah's GIS data. Before

Introducing the Open SGID Database - A New Publicly Available Data Offering (4 min)

It seems so long ago now, but it was less than a year ago when we first hinted at the possibility of a new SGID offering (then again last fall). We are finally ready to announce the debut of a new ope

How To Use UGRC Base Maps in QGIS (1 min)

Most people know about UGRC's awesome base maps. They are very popular and provide high quality cartography using the latest and greatest data from the Utah SGID. But did you know that they provide a

Using Base Maps with Non-standard Coordinate Systems in LeafletJS (2 min)

Since LeafletJS [https://leafletjs.com/] seems to be what all of the cool kids are using these days and it shows no signs of slowing down [https://www.mapbox.com/blog/vladimir-agafonkin-joins-mapbox/], I thought that it would be fun to figure out how to use Leaflet to view UGRC's awesome base map services [/products/sgid/base-maps/]. This presented a unique challenge since they are not in a projection that is supported out-of-the-box by Leaflet (UTM Zone 12 NAD83). However, I found that it is possible with the help of a few additional JavaScript libraries. So, here's the solution: See the Pen Esri Leaflet (OLD) [https://codepen.io/stdavis/pen/zLaZoJ/] by Scott Davis (@stdavis [https://codepen.io/stdavis]) on CodePen [https://codepen.io]. You'll notice that I've loaded these libraries in addition to the latest version of Leaflet: * Esri-Leaflet Plugin [https://esri.github.io/esri-leaflet/] * Proj4js [https://github.com/proj4js/proj4js] * Proj4Leaflet Plugin [https://github.com/kartena/Proj4Leaflet] The implementation was not that complex once I got all of the numbers right. First I create a new Proj4Leaflet coordinate reference system which I pass into the map constructor. Then I use the Esri-Leaflet Plugin to set up a new TiledMapLayer and add it to the map. Now you can be one of the cool kids too!