- Unless explicitly stated otherwise, the opinions expressed here are my own.
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Author Archives: John Reiser
I’m out at the ESRI DevSummit this year, and tonight I presented the following talk on using SQL to perform spatial analysis tasks. The presentation slides are included here. I tried to squeeze in several examples, including mapping 2,199 farms … Continue reading
This is third in a series of posts on a side project of mine, NJ Parcels. Read the first and the second parts. In the summer of 2015, we decided to get takeout from a local Greek place. We were … Continue reading
This is the second in a series of articles regarding a side project of mine, NJParcels.com. Read the first article here. Read part three here. Once GlassboroMap and NJ Parcels started to get considerable traffic, I began receiving emails asking for … Continue reading
This is the first in a series of posts about a side project I’ve been developing and maintaining for the past few years. This introduction will be accompanied by subsequent posts dealing with the technical, commitment, and emotional issues associated … Continue reading
I have been working on a project that is driven by a series of functions written in PL/pgsql. The functions look at New Jersey’s land use data over several different time periods and selects out certain areas if they have the … Continue reading
I was home sick on Wednesday, so while I was on the couch I decided to dive into Tableau Public, a free desktop visualization tool. At IERP, we use Tableau for some of our public dashboards. Other than some minor … Continue reading
Often, when I go to tackle a problem, I look to use the simplest tools available first. Unix (and its derivatives/descendants, like Mac OS X and Linux) was designed with the following principles in mind: Write programs that do one … Continue reading
Recently when working on a project that uses a hexagon grid, I used the awesome mmqgis plugin to QGIS to produce the grid. The one small shortcoming with the tool is that I would prefer to have a cell identifier … Continue reading
Last week, I gave a 30 minute talk on “Doing More with SQL” at MAC URISA 2014. The slides from the talk are available below:
Yesterday, I mentioned that I discovered ArcGIS’s inconsistent handling of spaces within text fields. Today, I tested to see how ArcGIS handles NULLs, Empty Strings and Spaces within its native file formats.