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from operationscore.PixelMapper import *
import util.Geo as Geo
import sys
class SimpleMapper(PixelMapper):
def mappingFunction(self, eventLocation, screen):
if type(eventLocation) == type(tuple()):
bestDist = sys.maxint
bestPixel = None
[x,y] = eventLocation
for (x,pixel) in screen.pixelsInRange(x-self['CutoffDist'], \
x+self['CutoffDist']):
pixelDist = Geo.dist(pixel.location, eventLocation)
if pixelDist < bestDist:
bestPixel = pixel
bestDist = pixelDist
return [(bestPixel,1)]
elif type(type(str)):
#[{x}>5,{y}<k]
#TODO: we should probably encapsulate this somewhere
ret = []
eventLocation = eventLocation.replace('{x}', 'pixel.location[0]')
eventLocation = eventLocation.replace('{y}', 'pixel.location[1]')
for pixel in screen:
try:
preValid = eval(eventLocation)
pixelValid = sum(preValid) == len(preValid) #TODO: some
#optimizations possible. This might be slow in the long run
if pixelValid:
ret.append((pixel, 1))
except Exception as exp:
raise Exception('Bad event condition')
return ret
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