Hi,
I am writing to request advice on creating accurate heat maps and hot spot
maps.
I am mapping 5 heritage sites where 100s, and in a few cases 1000s, of points
representing various attributes have been recorded using a differential GPS. I
want to show the density of these attributes and then demonstrate a threshold
(no. of attributes) in hot spots in each heritage site.
I have no problems creating heat and hot spot maps following the QGIS
instruction manual and Ujaval Gandhi’s tutorials, but I am uncertain about how
to use the advanced raster heatmap plugin settings to set the x and y cell
size, kernel shape etc. I seem to get different results every time I create a
map. So, is it ok to leave the advanced settings off? and just choose the
radius? Depending on attribute, I set the radius to 10m, 5m and 1m.
This is for my PhD, so I need the mapping and hot spot math to be accurate
rather than representative.
Any advice on this will be much appreciated,
Julia
Sent from Windows Mail
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