A very deep image
By John C. Zastrow
Man I love XKCD. Awesome cartoons for nerds.
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Untar and gunzip all files in a directory
By John C. ZastrowI needed a little script to expand a bunch of tarred and gzipped files in a directory and I needed a log of what happened.. and didn’t happen (errors). So, here it is. [Read More] -
FOSS4g North America not for me
By John C. ZastrowAfter missing the International FOSS4G in Denver (one of my former homes and a great excuse to visit land and friend alike) I’m now likely going to miss FOSS4G North America in the territory of my home office in the greater DC area. Argg, this totally bums me out. Somebody... [Read More] -
Dropping columns in sqlite/spatialite
By John C. ZastrowSQLite doesn’t have a nice ALTER TABLE DROP COLUMN command and neither does spatialite. Instead, you get to run a long sequence of commands like this. Here I wanted to drop all the extra columns from my huc12 layer for the country. [Read More] -
Of file sizes and nearest neighbors
By John C. ZastrowThis post is part of a series [1], [2], [3], [4], [5] [Read More] -
Spatialite Speed Test
By John C. ZastrowThis post is part of a series [1], [2], [3], [4], [5] [Read More] -
Spatialite and Spatial Indexes
By John C. ZastrowThis post is part of a series [1], [2], [3], [4] [Read More] -
Example with PHP and Spatialite, part 2
By John C. ZastrowThis post is part of a series [1], [2], [3], [4] [Read More] -
Example with PHP and Spatialite, part 1
By John C. ZastrowThis post is part of a series [1], [2], [3], [4] [Read More] -
Notes from Where Camp Boston 2011
By John C. ZastrowI had a great time at this little event and it was good prep for the Maine GIS User group’s Ignite meeting tonight. Hopefully I’ll be able to attend more stuff like this in the future. But, before then, I’d better get some materials together about Spatialite in return for... [Read More]