gdal/ogr

A Look at “PostGIS In Action”

by

Over the past few weeks, I have been reading a copy of the upcoming book by Regina Obe and Leo Hsu titled “PostGIS In Action.” Through my work with zigGIS and some of my consulting work with Zekiah, I have been using PostGIS with good results for some time now. I have found that it matches or exceeds the capabilities of its commercial counterparts and I can be quite productive with it.

Regina has been a frequent contributor to zigGIS discussions over the years and her expertise with PostGIS has definitely helped Abe, Paolo and I as we have worked on it. Also, many tips from the Boston GIS blog/site have been very helpful so I have been looking forward to this book for some time.

Read more

A One-Touch (Almost) Data Loader With FWTools and PostGIS

by

So my PostGIS/SharpMap/WPF project is ready to go out the door. Literally. The servers are being loaded onto pallets and shipped to their respective destinations. Great! Time for a cold one! Well……maybe not. There’s one little problem: there’s no data on the servers yet.

We had to coordinate with a large national government agency to get the data we needed. That part of the process experienced a little “slippage”. As a result, the last part of the task changed from loading data onto the servers to developing a data loading tool that could be run from a DVD with minimal involvement from humans. (Those pesky humans.) Just another Monday.

Read more

Exporting ArcObjects Feature Class to PGSQL

by

The same project that has me working with WPF has me busy on a few fronts. I’ve been spending the last few days writing a tool to export data out of an ArcObjects feature class and dump it to a pgsql .sql file. ArcGIS acts as a serviceable generic data accessor to many vector data types and ArcCatalog provides a decent UI for the user community I’m targeting (also, they already have it). As a result, I’ve been developing an ArcCatalog command that exports a selected feature class.

As the title of this post suggests, I didn’t have a lot of time in which to accomplish this task.

Read more