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On 6/20/13 8:27 PM, Jonathan Duncan wrote:
> Steve what do you mean by unordered symbols? Aren't we using the order 
> of the symbols to maintain which ones are drawn first so that we can 
> maintain overlapping?
>
Hi Jonathan,

Very true.  Order does matter with overlap and should be respected.

The symbols are positioned one at a time from first to last.  Early 
symbols can be obscured by later symbols.

I guess using the term unordered isn't exactly correct.  I was trying to 
say don't read too much into the order of the positioned symbols.  
Matters of overlap are very important, but other than that, there is no 
inherent meaning in the order.

With the sign referenced, there is no overlap, so the following 6 
strings are equivalent.

M534x548S30004482x482S20600512x512S18610492x518
M534x548S30004482x482S18610492x518S20600512x512
M534x548S20600512x512S30004482x482S18610492x518
M534x548S20600512x512S18610492x518S30004482x482
M534x548S18610492x518S20600512x512S30004482x482
M534x548S18610492x518S30004482x482S20600512x512


-Steve