The Most Important App Might Not Be The Most Fun

mobile device with applications as tiles

I have a confession to make: my organization's most viewed and most important web map app is not my favorite app to work on.  And it's taken me awhile to realize that this app is the one that needs to be the highest priority.  The Cumberland County Property Mapper receives around 98% percent of our … Continue reading The Most Important App Might Not Be The Most Fun

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GeoDev Summit Recap

GeoDev Summit welcome sign

I wanted to give a recap and tell the backstory to the recently held GeoDev Summit.  The event was held on March 5 at Harrisburg University of Science & Technology.  It was a one day conference for current and future GIS Developers.  Sessions covered topics like Esri's JavaScript API, open-source web GIS technologies, and desktop scripting … Continue reading GeoDev Summit Recap

Esri Map Service Loading & Error Events in Leaflet.js

screen shot of codepen demo map

Over the summer, we were having a recurring issue where our map services on ArcGIS Server were down.  It seemed to happen at random times.  I even received an e-mail while at a picnic about a service being down.  While this was annoying, more concerning was that my web maps built using Leaflet.js and consuming … Continue reading Esri Map Service Loading & Error Events in Leaflet.js

Esri Leaflet Geocoder Crash Course

road map

I thought I’d introduce the Esri Leaflet Geocoder plugin in this post. It is one of many plugins Esri has developed to support integration with the Leaflet.js web mapping library. Although Esri states that they “provide no guarantee of individual features, nor a traditional product lifecycle to support planning,” they have integrated their technology with … Continue reading Esri Leaflet Geocoder Crash Course

CSS Hacks for Esri’s Web AppBuilder

desk with computer and hand drawings of building layouts

I've recently had the opportunity to develop a few web map apps using Esri's Web AppBuilder (Developer Edition) platform.  It's essentially a HTML5/JavaScript container that displays a web map and various widgets in a standard layout.  The Developer Edition allows you to create custom themes and add custom widgets, features that are not available in … Continue reading CSS Hacks for Esri’s Web AppBuilder

Converting Parcels to Address Points With a Python Script

a wooden fence

I feel that I have grown in leaps and bounds this year with my Python and ArcPy coding skills.  A big part of this has been the various projects I've taken on helping the Pennsylvania South Central Task Force's (SCTF) GIS Workgroup with its regional data sharing.  I've also been learning a lot about ArcPy … Continue reading Converting Parcels to Address Points With a Python Script

Setting Up Vector Control for Field Collection & Public Facing Maps

a mosquito feeding

I wanted to take a break from writing about Python scripts and Leaflet.js maps to share a project from a few years ago.  But don't worry, I've shared a few JavaScript snippets at the end.  As a county government GIS agency, we support various departments in our organization.  Our Vector Control department was interested in … Continue reading Setting Up Vector Control for Field Collection & Public Facing Maps

Adding Esri Map Services with Custom Tiling Schemes to Leaflet.js

map books in a store

I have been developing data visualization web mapping applications for various Cumberland County departments using the Leaflet.js JavaScript library. All of these apps have used the standard WGS84 Web Mercator Auxiliary Sphere projection/tiling scheme. This is used in Google Maps, ArcGIS Online, and the other major web map players. And while this works just fine, … Continue reading Adding Esri Map Services with Custom Tiling Schemes to Leaflet.js