Apparatus 4, wherein said predefined width of thin lines is {HEAD ~ a width} of {TAIL ~ one pixel} and each point along said line P comprises a distinct pixel 
Apparatus 4 , wherein said predefined width of thin lines is { HEAD ~ a width } of { TAIL ~ one pixel } and each point along said line P comprises a distinct pixel
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH