Data conflation is a meat-and-potatoes task in most GIS workflows. There are numerous reasons one might need to get data from one data set into another. Perhaps you want to attach a new geometry type to existing attributes or a table. Or maybe you need to pull attributes from one or more data sets into…
Tag: PostGIS
Watching COVID-19 Data for Your County with PostgreSQL and Node
I have addressed the topic of triggered notifications a couple of times on this blog previously. I’ve taken the opportunity to apply the technique to a current use case – the ability to get notifications whenever the confirmed count of COVID-19 cases changes in my county or surrounding ones. I am basing this workflow on…
The One About PostGIS
James Fee and I released the next episode of our podcast this week. This month, we are taking a closer look at PostGIS and how you can get started with it. We’re both longtime users and huge fans of PostGIS, so it was fun to dig into it a little. You can check it out…
Refreshing a PostGIS Materialized View in FME
I am following up my previous post with an extremely simple example using FME to kick off the refresh of a materialized view (matview) after a data import. I had never used FME prior to coming to Spatial Networks, but now I’m hooked. I’m having a really hard time finding things it can’t do. As…
Working with Materialized Views in PostGIS
It’s been a few months since I’ve posted, owing mainly to getting my feet under me at Spatial Networks. About a month after I started, the company re-merged with Fulcrum, which had previously been spun off as a separate company. As a result, I’ve gotten to know the Fulcrum engineering team and have gotten to…
Personal Geospatial Workflows, July 2016 Edition
It’s hard to believe, but I last touched upon this topic over two years ago, when my family and I were living in our between-houses rental. One of the goals I had when building our current house was to create a space where I could more effectively work from home. To that end, I have…
Revisiting Two Old Friends: ArcGIS and PostGIS
Back in the dark old days of ArcSDE, when it first started to support PostgreSQL/PostGIS as a back-end data store, I did a series of posts about how to work with it. Of course, working with PostGIS in ArcGIS was a theme of the early days of this blog, through my association with zigGIS. Although it’s…
Extending Hibernate Spatial
Java is my “Groundhog Day” language. It’s one that I use just infrequently enough to feel like I’m starting over every time a new requirement pops up. As a result of planning the system migration I discussed in my last post, I’ve been doing some work with it, which is my first sustained Java work since…
Desktop GIS
I’ve found myself using desktop GIS more and more lately. While I don’t tend to think of myself as an analyst and I’ll never be confused with a cartographer, it is simply not possible to perform GIS software development without making occasional use of desktop GIS. My typical use cases involve data preparation or query…
A Brief Retrospective
This is the time of year where retrospectives of the previous twelve months become all the rage as content providers have column inches and/or pixels to fill up while skipping out the door on holiday breaks. As an independent blogger, I have no such requirements and the topic of this post, while retrospective, has nothing…