def getFrontOverWidthAddYList(front, numberOfLines, xIntersectionIndexLists, width, yList):
 frontOverWidth = (front / width)
 for fillLine in xrange(numberOfLines):
  yList.append((front + (float(fillLine) * width)))
  xIntersectionIndexLists.append([])
 return frontOverWidth

def getFrontOverWidthAddYList ( front , numberOfLines , xIntersectionIndexLists , width , yList ) : frontOverWidth = ( front / width ) for fillLine in xrange ( numberOfLines ) : yList . append ( ( front + ( float ( fillLine ) * width ) ) ) xIntersectionIndexLists . append ( [ ] ) return frontOverWidth
get the front over width and add the x intersection index lists and ylist .