Comments on 2010-05-20 Updated Traveller Mapping

(*waves from*)

For automated communication route generation I was pondering trying a minimal spanning tree.

Joshua Bell 2010-05-24 05:01 UTC

… just remember that the maximum node length is 4, since XBoats have Jump-4 drives.

Harald Wagener 2010-05-24 09:48 UTC

Traveller Map is the best! :)

Thanks for the excellent suggestion! I’m still calculating the trade routes according to the rules:

  1. considering only systems that offer fuel: starport A-D, gas giant, or Wa trade code
  2. connecting trade codes In or Ht with As, De, IC, or NI within 4 parsecs using a jump-2 route
  3. connecting trade codes Hi or Ri with Ag, Ga, or Wa within 4 parsecs using a jump-2 route
  4. but in the end, when I have the trade graph, I use Kruskal's algorithm to create a minimal spanning tree based on the subset of legal trade routes

I’m not quite sure whether I like the result, but it’s already good enough to be used, I think.

I can already see the next problems:

  1. I’m not happy with the colors I’ve picked. Suggestions?
  2. I can’t used dashed lines – assume I have four systems A B C D in a line, A connects to C, B connects to D – the overlapping lines between B and C will result in a mess (not in Inkscape but in Firefox it sucks).
  3. Using Bézier curves would be awesome. :)
  4. I added a random button which queries the UWP Generator for a random subsector.
  5. I extended the generator such that it accepts a seed value.
  6. I extended the mapper such that it adds a link back to the UWP (bottom right corner) if it was randomly generated.
  7. I’m not sure I want to start generating Traveller appropriate names [1][2] – I’m still happy with the Elite-like names I’m generating.
  8. The generator now also has a button to generate a map.
  9. The generator also had a bug which I fixed; that bug led to systems with no starport still having bases.

I announced it on Citizens of the Imperium.


I like the work you have done ... I only found one small problem which was you limit the law code to 9 ... when in theory it can rise higher than that.

Because the Law Level code is restricted, any worlds with Law higher than 9 just don’t appear on the map. I can see the Regex expression is 0-9 and could be changed to 0-9A-F

All of that aside I think you did a great job :)

Brennall 2010-05-31 19:50 UTC

Indeed, I looked at the tables on the Imperial Encyclopedia [3][4] and fixed both the UWP Generator and the SVG Mapper for Traveller.

AlexSchroeder 2010-05-31 23:41 UTC

Alex, I was looking at the SVG you generate, and I noticed the special symbols you used for the Gas Giants etc. When I attempted to save the SVG locally and look at them in an editor it replaced the symbols with “?”. Obviously my editor defaulted to the wrong character set, but I am curious what character set you did use which had the emblems in?

Brennall 2010-06-02 12:29 UTC

Its ok .. should have looked further in the extended UTF-8 Character set. Found them now.

Brennall 2010-06-02 12:44 UTC

For future readers looking for help:

gas giant 0x25C9 FISHEYE
imperial consulate 0x25A0 BLACK SQUARE
navy base 0x2605 BLACK STAR
π research base 0x03C0 GREEK SMALL LETTER PI
pirate base 0x2620 SKULL AND CROSSBONES
communication/trade 0x25AE BLACK VERTICAL RECTANGLE

AlexSchroeder 2010-06-02 13:06 UTC

Thanks Alex .. Very helpful

Brennall 2010-06-02 13:36 UTC

I am curious Alex ... have considered a method of saving the SVG output from the map ?

Brennall 2010-06-04 13:41 UTC

Uh... What browser are you using? I just hit Ctrl+S and save the SVG file. And since I also have the option of printing to a file, producing a PDF is no problem either.

In fact, I sometimes update the UWP of my campaign, regenerate the SVG map, save it, and use Inkscape to add the spheres of influence we have. The result:

At one point the party caused civil war in a system by dropping a tactical nuke on large part of a government. I then assigned a red zone to the system, which caused the major trade routes to shift. Result:

before after
note the spheres of influence but I forgot them here, hehe

AlexSchroeder 2010-06-04 14:26 UTC

After some quick testing the following results

Interesting difference given Chrome and Safari both use Webkit.

I will have to switch over to Firefox from Chrome to get what I want!

I will also have to give Inkscape a try as I haven’t used it yet.

Cheers Alex.

Brennall 2010-06-04 15:03 UTC

Yeah, I ❤ Inkscape! :)

I wasn’t aware that browser reactions varied so much. But then again, I was surprised when I learnt that Firefox was going to support SVG in the first place.

AlexSchroeder 2010-06-04 22:57 UTC

Great work! I love this program.

A few quick questions though...

1) I’m importing my own UWP codes so that I can make my own sub-sector but I can’t seem to get the Amber or Red Zones to show up on my map. I can see them when I do a randomly generated map, but just not my own.

Here is an example of my UWP code: Darkgate 0810 X563401-B Ni G R 124 Ukn

It shows the: Gas Giant, Research Lab,X Spaceport and name (Darkgate) but no red circle. Name

2) What UWP code do I use for asteroid belts (to see the circle in the hex)?

– Mark Merrell 2011-08-03 01:28 UTC

Nevermind, I figured it out. I had extraneous info in my UWP line.

Also, figured out the grey circle is in fact the amber zone.

I learned something today!

Again, thanks for the program!

– Mark Merrell 2011-08-03 01:35 UTC

Heh, excellent. No idea regarding the asteroid belts – those didn’t show up in my Mongoose Traveller book. :)

AlexSchroeder 2011-08-03 08:26 UTC

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