Street Axis by Voroni Diagrams.

Anyone have an idea how to implement voroni diagrams to find the Center Axis of a Street having a cad file with the squares of the Site´s

Replies to This Discussion

Permalink Reply by Ching on April 3, 2012 at 5:47pm

Can you post some pictures please?

Permalink Reply by Michael Pryor on April 3, 2012 at 5:54pm

like using the centroid of each site as a voronoi point? It depends how the sites are arranged

Permalink Reply by Toussaint Jimenez Rojas on April 3, 2012 at 6:01pm

Attachments:

screenshot-002.png, 224 KB
lots.3dm, 72 KB

Permalink Reply by Toussaint Jimenez Rojas on April 3, 2012 at 6:02pm

michael i'm not sure cuz the lines are not correctly

Permalink Reply by Eli Meltzer on April 3, 2012 at 6:30pm

select all in Rhino and join them and then use CloseCrv, then project them all to the construction plane and delete the originals, so you can make planar surfaces of all of them

Permalink Reply by Toussaint Jimenez Rojas on April 3, 2012 at 6:33pm

all are joined, closed, and projected to the Cplane

Permalink Reply by Eli Meltzer on April 3, 2012 at 6:43pm

in the screen shot that you attached it's actually working i think...

because the streets are basically a grid the voronoi diagram will also approximate to a grid

Permalink Reply by Toussaint Jimenez Rojas on April 3, 2012 at 6:47pm

the screenshot its the representation of the reality of a part of the city of buenos aires, the streets are not really a straight grid i guess so i dont know whats going on with voroni but its betraying me

Permalink Reply by Eli Meltzer on April 3, 2012 at 7:30pm

run the curves through a planarSrf component, and then use Area to get the centroid, and use those for the voronoi

Permalink Reply by Michael Pryor on April 3, 2012 at 7:53pm

you can use area on closed curves to. Its not the issue. The issue is that voronoi is a perfect radius from each point. those "sites" are not perfect as say a bunch of the same rectangle arrayed and evenly spaced. I dont think voronoi is the answer, maybe im wrong.

Permalink Reply by Toussaint Jimenez Rojas on April 3, 2012 at 8:12pm

the brep component do the same that planar surface, give me the same results if i pass the curves through a planarsrf

Permalink Reply by Toussaint Jimenez Rojas on April 3, 2012 at 8:14pm

i start to think that voroni its not the answer to, my mind its burned today i will think tomorrow, anothe way of achieve the goal that i need :S GH drive me to the madness jejejej