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Frequency map
Contour map
Height map
Driving speed map
Running speed map
Walking map
Date map
Ordnance map
Full map
This is a map showing altitude with a black body colour gradient that cycles every hundred metres, oh it makes sense to me. To get it to fill in the spaces where I had no data I used something that works very much like Voronoi cells. To be honest its not a very good visualisation for altitude but it looks pretty awesome like the country is on fire.