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Topic | Esri

From the Ashes of Shapefiles

A Presentation for the 2020 Virtual Ohio GIS Conference

This talk describes the slow and painful migration from a legacy GIS data structure of hundreds of shapefiles to a modern setup using a mix of Postgres, QGIS and ArcPro. Many small organizations and municipalities face this issue and it is one that is sure to resonate even with those supporting a...

GIS and Remote Work

An Exploration of a GIS Remote Work Toolkit

In the aftermath of the Coronavirus pandemic, remote work may well be come the new normal, as businesses and government agencies discover that productivity can be maintained or even increased when implementing remote work options. And the tools to implement this transition at the employee level a...

Exporting AGOL Feature Services to GeoJSON

Using NodeJS and Batches to Transform an ArcGIS Online Feature Service to GeoJSON

Recently I had the need to pull data from ArcGIS Online into a Mapbox GL JS web map. While it would be possible to use the WMS publishing feature in AGOL to display this layer, what would be ideal is to have access to the raw data. The data also needs updated on a regular basis, so manually downl...

Leaflet & GeoJson Tiles

A County Parcel App: No GIS Server? No Problem!

Update 2017-08-01 This app has seen two more iterations. These each utilize an mbtiles-server to host the vector tiles, but still use client-side search for the data. The updated examples can be viewed here - a Leaf...

Google Drive Fusion Tables


Update: Google has deprecated Google Fusion Tables....

Raster Catalogs


Here I explain how to create a raster catalog in order to have a mosaic of a set of images. This way you can always add or change the images instead of just creating a static mosaic. I also find it much easier than dealing with the other ways of creating mosaic catalogs, etc....

Desktop to the Cloud: GIS Cloud and Rasters


One of the clients I work with utilizes unmanaged raster catalogs as part of their work flow. We manage over 20 raster catalogs with close to 4gb of imagery in both georeferenced jpgs and regular tifs. The imagery is black and white for the most part, some using the cg4 compression to get insanel...

Animating Urban Growth via the ArcMap Time Slider

One Hundred Years of Urban Growth in Ten Seconds

This video shows the growth of urban infrastructure from 1850 (blue) through to the present (red). I utilized the time/timeslider/export video feature of ArcMap to produce the video. I suffered numerous crashes while attempting to utilize the time slider in a meaningful way into my actual product...

Use Only Selected Features in Model Builder


This little trick came from GIS stack exchange. To run a model using only selected features, open your model and in the model builder window right click and select ‘Model Only Tools/Calculate Value’. In the ‘Expression’ box type:...