increasing width city network

Hi all,

I'm trying to create a network with increasing print width according to how many points is traveling on the path. All the starting points have a path from "a" to "B" and I'm using "shortest work" to get all the lines, but I'm looking for a network with no overlapping lines, but instead a network where one line have line width (lets say 1) and to lines double line width (2).

I hope you can help and please ask for me to be more specific.

Attached is a picture of what I try to achieve.

Attachments:

increasing width city network.png, 98 KB

Replies to This Discussion

Permalink Reply by Anders Holden Deleuran on September 29, 2016 at 5:06am

You can render/print lines with different line weights using the Human plugin. It has the PreviewLW component that allows you to render curves with custom line weights (in pixels or absolute values). If you print (in Rhino i.e. CTRL + P) to a pdf it will output these as vector graphics. Another option is to bake the lines to the Rhino document with custom attributes (I believe there are several plugins which enable this, otherwise it can be scripted). Hope that helps.

Edit: To set the line weight according to how many overlap, you could get their midpoints and check for overlaps of these.

Permalink Reply by Malte Harrig on September 29, 2016 at 6:34am

I'm trying to sort my points in branches so I can count how many points are in each branch for the line weight. This might be a simple question but I haven't been able to find a solution.

Do you have an idea to check these overlaps?

Permalink Reply by Anders Holden Deleuran on September 29, 2016 at 7:10am

I'm sure this is probably easily done with straight up Grasshopper, but since I suck at that, here's a GHPython solution :)

Permalink Reply by Anders Holden Deleuran on September 29, 2016 at 7:23am

No sure why my attachments aren't making it these days, here it is again.

Attachments:

150929_LinesByOverlap_00.gh, 11 KB

Permalink Reply by Malte Harrig on September 29, 2016 at 7:32am

This really looks like what I'm looking for! but I have no experience in GHpython so I can't figure out whats not working.

Permalink Reply by Anders Holden Deleuran on September 29, 2016 at 7:40am

Looks like the input data has nulls in the list. Did my file work when you opened it? Can you provide a file that does not work?

Permalink Reply by Malte Harrig on September 29, 2016 at 7:53am

I think it might be a problem between lines and curves. I added "curve to polyline" and now it seems to work. :)

Attachments:

Network test.gh, 12 KB
Network test.3dm, 41 KB

Permalink Reply by Anders Holden Deleuran on September 29, 2016 at 8:42am

Ah yes, I wrote the algorithm under the assumption that your network edges were always Lines. Attached a version that works with Curves (which is slightly more complex in terms of defining an absolute midpoint and taking tolerance into account).

Attachments: