UTFGrid is a specification for rasterized interaction data.

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Tilestache/Mapnik: Is it possible to create dynamically filtered layers?

I'm using Tilestache to generate two layers with the mapnik and mapnik grid providers, and it's working great! However, I want users to be able to filter the data over many (more than ten) ...
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Can i access UTF grids without a server?

I'm creating a slippery map that will run off of a usb stick or cd (client request). I'm able to load up the map, display pre-cooked tiles and some some simple vectors. The client would like some more ...
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Custom UTF Grid Renderer performance improvement help

Back in November I asked a question (Create interactive map with no server) and had lots of great responses all of which I tried but because my dataset was so large I wrote my own custom UTF Grid ...
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UTFgrid support in QGIS

Starting with GDAL 1.10, the MBTiles driver allows to read rasters in the MBTiles format. The driver can also retrieve pixel attributes encoded according to the UTFGrid specification available in some ...