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from operationscore.PixelMapper import *
import util.Geo as Geo
class GaussianMapper(PixelMapper):
def mappingFunction(self, eventLocation, screen):
returnPixels = [] #TODO: consider preallocation and trimming
[x,y] = eventLocation
for (x,pixel) in screen.pixelsInRange(x-self['CutoffDist'], \
x+self['CutoffDist']):
pixelDist = Geo.dist(pixel.location, eventLocation)
if pixelDist < self['CutoffDist']:
w = Geo.gaussian(pixelDist, self['Height'], 0, self['Width'])
returnPixels.append((pixel, w))
return returnPixels
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