Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much
 
PerlMonks  

Re^4: Data visualisation.

by LanX (Chancellor)
on Jan 06, 2014 at 10:22 UTC ( #1069480=note: print w/replies, xml ) Need Help??


in reply to Re^3: Data visualisation.
in thread Data visualisation.

Hi roboticus,

> Update 2... The exhaustive check gives the following misses:

wow ...indeed "a mess of bad triangles".

TSP publications reach back to before the 1950s and IIRC the data was mostly taken from German or Swiss cities.

17 cities is a rather small and surely old example and I think at that time they just copied the kilometers from a tourist guide or train schedule or similar, w/o taking much care.

So my theory was that just reaching the city limits naturally causes an error for large communities like Berlin or Zürich.

But I don't think it's worth to try to correct this now with something like a fuzzy surface in the visualization, better try starting from the beginning with real coordinates.

At least I think questioning the quality in my first reply was justified, it's worth checking data before trying to work with it.

Cheers Rolf

( addicted to the Perl Programming Language)

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1069480]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others avoiding work at the Monastery: (2)
As of 2016-09-27 02:38 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Extraterrestrials haven't visited the Earth yet because:







    Results (493 votes). Check out past polls.