Hello Paolo, On Tue, Feb 14, 2012 at 3:00 PM, Paolo Cavallini <[email protected]>wrote:
> Hi all. > Just tested the new plugin, quite nice. Where do I find more info about > the algorithms used? > There is no specialized algorithm, the procedure in which pixel values are computed is explained in the Context Help. Its just a linear assignment, say for a buffer of 10 pixels, and decay of 0, the central pixel has a value of 1, 2nd from center pixel has 0.9 and so n upto the 10th pixel with value 0. Its then added along for point by point. So the more the number of points, the more the pixels' value. http://idvux.wordpress.com/2009/08/21/heat-maps/ has a nice explanation of various types of heatmaps (value interpolated, frequency). This tool generated a frequency heatmap. So there is not much of algo space left. Somethings like smoothing of boundaries can be done, but that would be more of visual appeal without mathematical basis I think (correct me if wrong). > Moreover, would it be possible to integrate it in the main interpolation > command? > Thanks. > The code is completely self contained, hence cannot be accessed from outside. -- Regards Arunmozhi Twitter: @tecoholic Website: http://arunmozhi.in IRC Nick: teco
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