def mirrorVertical(source):
  mirrorpoint = int(getWidth(source)/2)
  for y in range(1,getHeight(source)):
    for xOffset in range(1,mirrorpoint):
      pright = getPixel(source, xOffset+mirrorpoint,y)
      pleft = getPixel(source, mirrorpoint-xOffset,y)
      c = getColor(pleft)
      setColor(pright,c)

def mirrorHorizontal(source):
  mirrorpoint = int(getHeight(source)/2)
  for yOffset in range(1,mirrorpoint):
    for x in range(1,getWidth(source)):
      pbottom = getPixel(source,x,yOffset+mirrorpoint)
      ptop = getPixel(source,x,mirrorpoint-yOffset)
      setColor(pbottom,getColor(ptop))

def addLines(source):
   spaceAmount = 5
   for x in range(1,getWidth(source)):
      for y in range(spaceAmount,getHeight(source),spaceAmount):
         pix = getPixel(source,x,y)
         c = makeColor (0,0,0)
         setColor (pix, c)
   for x in range(spaceAmount,getWidth(source),spaceAmount):
      for y in range(1,getHeight(source)):
         pix = getPixel(source,x,y)
         c = makeColor (0,0,0)
         setColor (pix, c)

def getPict2():
   file = pickAFile()
   pict = makePicture(file)
   addLines (pict)
   show (pict)

def getPict3():
   file = pickAFile()
   pict = makePicture(file)
   mirrorHorizontal (pict)
   show (pict)

def getPict():
   file = pickAFile()
   pict = makePicture(file)
   mirrorVertical (pict)
   show (pict)

def showPict():
   file = pickAFile()
   pict = makePicture(file)
   show (pict)