artlemboMay 201 minHow FOSS4g Fits in Your StackI had a great semester working with my students using desktop, server, and developer tools with Free and Open Source Software for Geospatial (FOSS4g). The s...
artlemboMay 113 minteaching Arcpy to first time usersIn my previous post, I showed how my GIS students were able to adapt to QGIS as a desktop GIS, and also the model building capabilities in QGIS. They had al...
artlemboApr 275 minteaching an old dog new tricks: learning QGISIn my last post, I showed that my lower level undergraduate students were performing quite well in their online transition, when learning quantitative geogra...
artlemboApr 255 minAre students learning online?We're now about 6 weeks into our experiment of transitioning our University instruction to an online environment. Because we transitioned in the middle of t...
artlemboApr 221 minCOVID-19 Death Animation for Maryland with QGISI just started working with the Time Manager plug-in with QGIS to create an animation of recent COVID-19 deaths in Maryland: The map lacks a lot of data, and...
artlemboMar 212 minFree Online Quantitative Geography CourseDue to the COVID-19 virus, many of our schools are struggling to turn their courses into online delivery. I just found out that our entire semester is now g...
artlemboMar 132 minFree course materials for GIS ProfessorsDue to the COVID-19 virus, many of our schools are struggling to turn their courses into online delivery. I too am getting my courses spun up for that. Wha...
artlemboMar 111 minBuilding a geodatabase tutorial - ArcGIS ProIf you're like me, you've enjoyed using the ESRI Tutorial Building a Geodatabase. It's a great tutorial that steps students through some basics in creating ...
artlemboSep 18, 20191 minVirtual layers with QGIS – wait a second, this is starting to look like Manifold…If you are like me, you love writing spatial SQL. But what can you do if you have a geodatabase, some shapefiles, or any other data format? Well, you can a...
artlemboSep 17, 20191 minEasy Bivariate Maps with QGIS, SQL, and the DB ManagerPreviously, I blogged about creating bivariate maps with Postgres, and Arcpy. Pretty cool stuff, check it out! But, to be honest even though Postgres was su...
artlemboSep 13, 20191 minSQL or Models in QGIS – you decideIn my previous post, I showed how to create a model in QGIS – I think that was pretty cool! But, as I say over and over, SQL is even cooler! I am republish...
artlemboAug 20, 20191 minModels in QGISDid you know that QGIS can design graphical models, similar to the way Model Builder in ArcGIS works? The following video is taken from my course Learning t...
artlemboAug 12, 20192 minBig Data Geo-Analytics with Postgres workshop EvaluationTechnical and Detailed. Great teacher explanation. Really good! Practical advice, in-depth enough to really learn something useful (most one-day workshops do...
artlemboMar 15, 20192 minBivariate Choropleth Maps with ArcpyIn my previous post, I showed how to prepare the data for a bivariate choropleth map using PostGIS and QGIS. I also indicated that there is a website that s...
artlemboMar 14, 20193 minEasy bivariate map with PostgresA friend recently asked me about the cool looking bivariate maps produced with ArcOnline, lamenting that the capability seemed lacking in ArcGIS. Well, it ...
artlemboMar 7, 20192 minReady for a new career?I just got off the phone with a very large developer. I want to call him a GIS developer, but really that’s not was he does. Rather, he is a spatial soluti...
artlemboFeb 21, 20192 minEngaging students with multiuser editing, and FOSS4gA friend is doing some research on estrogen and estrodial in water samples in Delaware. We have about 50 sub-watersheds that show the upstream contributin...
artlemboDec 11, 20183 minPostGIS Multiprocessing Code-ReviewAs promised, let’s walk through the code I wrote to create the multiprocessing of my Postgres/PostGIS task. You may recall that I said that it only took 4 l...
artlemboDec 10, 20185 minPostGIS and MultiprocessingNYC taxi cab pickup locations for October, 2012 OK, let’s cut to the chase: I used Python’s parallel processing capabilities with Postgres to perform a spati...
artlemboOct 28, 20184 minDenver workshops – a mixture of sadness and joy.two successful Keeping Up with GIS Technology workshops out in Denver. This was a week mixed with sadness and joy: sadness in that my Mom passed away on Tue...