Viewing posts for the category ogr2ogr

Building a US Census Tracts PostGIS Database

Posted by: Will Cadell in postgis technology open source tools ogr2ogr 4 years, 3 months ago

This article shows how you (yes, you!) can build your very own US Census Tracts PostGIS database. I had looked over the interwebs for some time under the false assumption that someone, somewhere would have already done this, but it seems not. So this article documents my process. I am running a mac, so some things could be done faster / smarter using other technology refinements, but I have tried to keep things pretty generic for 'nix users. Windows people; you will find this process is pretty simple, I am sure you can replicate it using what you have available.

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ogr2ogr 3D Shapefile Import to PostGIS Tip

Posted by: Will Cadell in postgis GIS ogr2ogr 4 years, 3 months ago

A very quick tip for those scratching their heads over trying to import a 3D shapefile (which doesn't actually have any 3D data, or at least none you care about) into a flat (2D) PostGIS data set and you keep getting a geometry constratint error. 

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PostGIS to PostGIS via ogr2ogr

Posted by: Will Cadell in technology code ogr2ogr gdal postgis GIS open source tools 4 years, 6 months ago

OGR2OGR is a hugely useful GIS utility. Today I was using it to copy data between an Amazon Web Services (AWS) based PostGIS database and a local PostGIS database. This is a slightly weird use case, but I wanted to pull down some data locally for editing via Quantum GIS (QGIS).

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