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Thread: Making Fractal lines in GIMP

  1. #21
      Hai-Etlik is offline
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    Quote Originally Posted by Cool as a Cucumber View Post
    Yeah, what this guy said. I guess I'm just going to have to do the rivers in Fractal Mapper.
    Ah rivers: Quick and Easy rivers in Inkscape with Fractalize and Tweak

    It's Inkscape rather than The GIMP but that might help.

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  3. #23
      JingJang is offline
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    RobA,

    New User here so forgive any nOOb ignorance.

    I'm really interested in your Fractalize Path Script. I got as far as installing the .scm file into the script directory. I restarted the script server, drew a quick line using the pencil, converted the line to a path. Now is where I'm stuck. I click on the Path tool and then right-click on the selected path - but I'm not getting the dialog box.

    What am I missing? I'm betting it's something really simple. I looked around online for a video but of course all of the videos are for drawing "fractals" not using your script to convert a path to a fractalized line! I mean it sounds really simple - I'm just not seeing it.

    Thanks for the script and thanks to anyone who can provide me with an answer.

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      RobA is offline
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    Quote Originally Posted by JingJang View Post
    Now is where I'm stuck. I click on the Path tool and then right-click on the selected path - but I'm not getting the dialog box.
    You need to have the Path Dialog open:
    Name:  paths-dialog.png
Views: 174
Size:  5.5 KB

    and right click on the path in there to get the Path menu.

    This page 2.3.*Paths Dialog describes how to get that dialog open and docked somewhere.

    -Rob A>

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      JingJang is offline
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    Thank You sir!!

    That's exactly what I needed - figured it was simple.

    Now I'll need to experiment with getting the result back into a normal layer but I'll figure that out later.

    I'll be using your script to make some dungeon maps, (Specifically the walls). I work in GIS but true cartographic design is something I've only toyed with. Still learning GIMP and all it can do. Thanks for this script though - it's going to make for much better looking walls!

    Thanks Again!

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      jello195 is offline
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    Quote Originally Posted by Cool as a Cucumber View Post
    Yeah, what this guy said. I guess I'm just going to have to do the rivers in Fractal Mapper.
    Well if you are open to using illustrator you can do this:

    1. You draw a form vaguely ressembling the shape of whatever you want
    Making Fractal lines in GIMP-ex1.jpg

    2. You select the part want (in this case it's the whole shape) and you go to filter→Distort→Zig Zag, then you set the intensity of the effect (generally you only need a small percentage).
    Making Fractal lines in GIMP-ex2.jpg
    This should give you an altered shape that is more like what you initially wanted
    Making Fractal lines in GIMP-ex3.jpg

    3. You copy/past it in photoshop, there are many options you can choose depending on the result you want. I usually paste it as a path.
    Name:  ex4.jpg
Views: 130
Size:  6.8 KB

    4. Then you fix the latest details and stroke the path. Here is an example of a map I made today for a game of D&D using this technique for the room 57-58-59.
    Making Fractal lines in GIMP-passage-de-tirara.jpg

  7. #27
      wisemoon is offline
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    Quote Originally Posted by Cool as a Cucumber View Post
    Yeah, what this guy said. I guess I'm just going to have to do the rivers in Fractal Mapper.
    I know I'm responding to an old thread, but in case anyone new checks this thread, I found a random fractal line generator online:
    FractalMaker_exp

    you can generate lines with varying numbers of segments, change the coordinates of the segment ends (for example, I made a zig-zag line to represent a winding river), etc. When you have a line you like, you can export it as a BMP or JPG file. You could then import that line into GIMP or Photoshop to use as a river.

    I haven't yet tried the Inkscape fractalized line method, but I figure this is a quick fix for those who want a reasonably randomized, fractal river but aren't too terribly OCD about the details.
    --wisemoon
    This and all other posts, including image or document files created by me that are linked in a post, are copyright Megan L. Wiseman, in the current year. Permission to use granted under the Creative Commons Attribution-NonCommercial License unless otherwise stated in the post.
    Please visit my blog - cartography, popular culture, and my art/design journal. Here are my finished maps!

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