I’m still playing around with zigGIS and I have noticed that it doesn’t seem to play well when I define the spatial reference of a data set in PostGIS. Any data set that has a defined spatial reference fails to draw in ArcMap. In addition, the layer properties always indicate that the coordinate system is…
PostGIS and ArcGIS 9.1
I’ve been intrigued for some time by an open-source (GPL) project out there called zigGIS. It is a C# project that enables a direct read of PostGIS by ArcGIS. It is intriguing for a couple of reasons. First is the promise of reading directly from PostGIS and working with your data in ArcMap without the…
Good Article on Optimizing Open-Source Software
There’s been a lot of recent buzz about open-source GIS software. Good discussions can be found at James Fee’s site, plus Datum Shift as well as on Dave Bouwman’s blog. Given all of this discussion, I found this article in Dr. Dobb’s Journal to be rather timely. It’s not about GIS software per se but…
IRasterLayer Export Gotcha in 9.2
Not long ago, I was working on a project that required us to convert our rasters from their native format (mostly CADRG) to TIFF. We need to do do this because we were viewing them in a .NET 3.0 WPF control so we needed a format it could recognize. At the outset, we were using…