Results 1 to 10 of 32

Thread: March Challenge Entry - Map of Canada

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Software Dev/Rep Hai-Etlik's Avatar
    Join Date
    May 2009
    Location
    48° 28′ N 123° 8′ W
    Posts
    1,333
    Blog Entries
    1

    Wip

    Here's a test run of the stippling algorithm with 20000 points and 20 iterations. It took several hours. I may have to come up with a more efficient way to do this.

    Click image for larger version. 

Name:	test.png 
Views:	361 
Size:	335.3 KB 
ID:	43160

  2. #2
    Guild Expert Ramah's Avatar
    Join Date
    Mar 2009
    Location
    Nottinghamshire
    Posts
    1,414
    Blog Entries
    4

    Default

    Quote Originally Posted by Hai-Etlik View Post
    Here's a test run of the stippling algorithm with 20000 points and 20 iterations. It took several hours. I may have to come up with a more efficient way to do this.

    Click image for larger version. 

Name:	test.png 
Views:	361 
Size:	335.3 KB 
ID:	43160
    What algorithm is that? That looks very interesting to me in regards TreeThing.
    Royal: I'm very sorry for your loss, your mother was a terribly attractive woman.


    My Cartographer's Guild maps: Finished Maps


    More maps viewable at my DeviantArt page: Ramah-Palmer DeviantArt

  3. #3
    Software Dev/Rep Hai-Etlik's Avatar
    Join Date
    May 2009
    Location
    48° 28′ N 123° 8′ W
    Posts
    1,333
    Blog Entries
    1

    Default

    Quote Originally Posted by Ramah View Post
    What algorithm is that? That looks very interesting to me in regards TreeThing.
    Seed the space with points
    Compute a voronoi diagram from the points
    Clip the diagram to a mask polygon
    Find the centroids of the voronoi cells
    Use the new points to generate a new voronoi diagram
    Repeat

    You can substitute in a weighted centroid function based on a density function (Like a greyscale image) to vary the density. I've implemented that as well, but it's even slower still.

    An earlier thread on the topic is here: http://www.cartographersguild.com/sh...ling-using-JTS

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •