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Viewing posts for the category Open Source Tools

Step Up Your Raster Handling Skills

Posted by: Kaela Perry in mapping code gdal GIS Open Source Tools google maps 3 years, 7 months ago

It is not uncommon for raster data to be large and unruly. Creating tiles is one way to deal with these large datasets and speed up rendering. This post introduces a few handy tools for dealing with raster data while walking through the process of combining multiple raster files to create tiles for a super-overlay for a nice clean visual output that renders more efficiently (particularly in Google Earth). All from the command line.

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Making the US Census Database Show Up On A Google Map

Posted by: Will Cadell in web development postgis Open Source Tools google maps node mapnik 4 years, 2 months ago

I wrote up how to build a US Census Tract database earlier. However, we all know that data without a way of showing it on a map, is a little sad. So I wrote up the process I used to make it all available on a Google Map. The process involves the use of PostGIS, Mapnik, Node.js and just a smidge of magic. Its a longer post, so i lumped it in with my tutorials. You can go check it out here.

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