Creating ArcObjects Spatial Reference Objects From PostGIS Spatial Reference Definitions

As discussed in my previous post, I’m trying to beef up the spatial reference support in zigGIS. I am doing this mainly to introduce support for user-defined spatial references. It pretty much boils down to querying the the appropriate SR from the PostGIS spatial_ref_sys table and applying the value of the srtext column to create … Continue reading “Creating ArcObjects Spatial Reference Objects From PostGIS Spatial Reference Definitions”

Moving Forward On A Couple of Fronts

Well, it’s been a while since I’ve posted anything technical. Work has been a little crazy and I’m not willing to carve into time with the family to keep other stuff moving. As a result a few things have been sitting for a while but I’ve been able to get around to two things. First, … Continue reading “Moving Forward On A Couple of Fronts”

PostGIS and ArcGIS 9.2

Updating my earlier post: I completed my upgrade to 9.2 yesterday with the installation of the last service pack. The first thing I did was upgrade zigGIS to ensure that there wouldn’t be problems. I have to say that the first thing I noticed was all of the tools ESRI has integrated with VS2005. I … Continue reading “PostGIS and ArcGIS 9.2”

Working with .zig files

The last couple of days have shown some traffic being driven to my blog from search terms such as “opening zig file” so I thought I’d offer up a discussion of the format. Abe Gillespie, the original developer of zigGIS, developed the zig file as a means of persisting PostGIS connection information used to access … Continue reading “Working with .zig files”

ArcGIS.Next (+)

Steve has blogged about Clint Brown’s talk at the CA/HI/NV/Guam RUG meeting. There’s nothing particularly suprprising but we’re starting to get dates and features tied to version numbers. I am encouraged that 9.3 will be in beta soon. ESRI’s odd-numbered releases are always more stable. The support for PostgreSQL with ArcSDE is not a surprise. … Continue reading “ArcGIS.Next (+)”

Two Roads Diverged in a Yellow Wood…

With apologies to the great Robert Frost. I’ll admit that over the last few months I’ve become something of an open-source convert. I’ve been in the consulting business for about 15 years now and I’ve made through the “holy wars” relatively unscathed (Microsoft/Linux, IE/Netscape/Firefox, Oracle/Everyone else, ad nauseum). I’ve said it before that it’s not … Continue reading “Two Roads Diverged in a Yellow Wood…”