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Thread: Portolan Line Generator

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      Hai-Etlik is offline
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    Default Portolan Line Generator

    If you've been following my entry in the light challenge, this is a somewhat cleaned up version of the script I used to make all those lines:

    To run it you'll need Ruby, and the output is SVG, so you'll need a vector editor like Inkscape to work with it.

    I'm releasing it under the GPL, and I've included some alternate compass roses under CC-BY-SA.
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    Last edited by Hai-Etlik; 09-20-2010 at 10:02 PM.

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      Hai-Etlik is offline
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    Replying to a post in another thread:

    Quote Originally Posted by Jaxilon View Post
    That reminds me, I tried to use that thing myself in one of my wips but I found it had too many lines. Maybe I'm not doing something right with it but is there a way to reduce how many intersections there are on a page? For instance, if I only wanted one set of lines?
    Set the -p option. The default value of 4 gives 16. Reducing it to 3 will give just 8 points around the circumcircle.

    You can also eliminate the outside lines with the --range option which can be set to inner (Only lines inside), or inner90 (Only the innermost 90° at each point).

    A very simple setup would be:

    Code:
    ruby portolan.rb -p3 --range=inner90

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      Jaxilon is offline
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    I believe, alas, I have no Ruby.
    “When it’s over and you look in the mirror, did you do the best that you were capable of? If so, the score does not matter. But if you find that you did your best you were capable of, you will find it to your liking.” -John Wooden

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      Hai-Etlik is offline
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    Quote Originally Posted by Jaxilon View Post
    I believe, alas, I have no Ruby.
    Well, the solution to that is: http://www.ruby-lang.org/en/downloads/

    Otherwise, here's an 8 point version.
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  5. #5
      Jaxilon is offline
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    Thanks for the link. I'll be checking that out although I've never coded in Ruby.
    “When it’s over and you look in the mirror, did you do the best that you were capable of? If so, the score does not matter. But if you find that you did your best you were capable of, you will find it to your liking.” -John Wooden

    * Rivengard * My Finished Maps * My Challenge Maps * My deviantArt

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