branches from same values

Replies to This Discussion

Permalink Reply by Danny Boyes on June 28, 2011 at 9:53am

I would use the Create Set and Member index in conjunction with the Replace Branches Component to achieve this.

EDIT: the Jitter is just to demonstrate that it can be applied to any flat list of random points 

Attachments:

• valueBranches.ghx, 137 KB
• valueBranchesSrf.3dm, 56 KB

Permalink Reply by Dedackelzucht on June 29, 2011 at 2:52am

Hey Danny,

 

Why is the jitter neede here?

 

And how do you like this solution? Its combined by Davids resort2D and your pathmapper.

 

Best Regards

 

DeDackel

Attachments:

• valueBranches_DeDackel.ghx, 99 KB

Permalink Reply by Danny Boyes on June 29, 2011 at 3:37am

I realised this would be confusing so I added the EDIT comment

the Jitter is just to demonstrate that it can be applied to any flat list of random points

With your method you could have used the Flip Matrix Component instead of the Path Mapper that way you can change the data structure without having to edit the Path Mapper.

Unfortunately it only really works with this example using the Divide Surface, because it has the basic path structure already present to manipulate. I don't think you would get the same results with a flat list of points.

Sorry if this sounds harsh. 

Permalink Reply by Frane Zilic on June 29, 2011 at 10:09am

Hi Gised

 

This should work

You first get the point coordinates, generate a set o unique X values, graft them and evaluate all the points X coordinate against every unique X value testing for equality. With that it's just a matter o culling.

 

Bye

Permalink Reply by Kevin Saey on December 15, 2016 at 3:19pm

Great sollution! THX a lot

Permalink Reply by Stefano Rossi on September 22, 2013 at 6:07am

I have a similar Problem, maybe someone can help.

I have a huge amount of points with a clear defined ID pattern. I have to sort the points out by their Obeject ID (this script works) and connect the points in sequence. 

The pattern is a surface name (from 000 to 999) and a corner (from 00 to 003) f.ex.; P1-ERDR-F-450-001

I leave the script uncomplete, as I tried so many combinations and I gave up now.

as the files are not uploading, find attached the public link

https://dl.dropboxusercontent.com/u/51129150/glass%20test.3dm

https://dl.dropboxusercontent.com/u/51129150/objectname.ghx

Permalink Reply by David Rutten on September 22, 2013 at 9:42am

You're still using 0.9.0014 so you won't be able to open my file. You probably don't have the [Tree Statistics] component either, but you can use the [Param Viewer] to the same effect.

I made your VB script a bit bigger. Since you already had one I figured it doesn't count as cheating. The code is now:

Private Sub RunScript(ByVal ID As Guid, ByRef N As Object, ByRef S As Object, ByRef C As Object)
  Dim rhObject As New ObjRef(ID)

  Dim name As String = rhObject.Object.Attributes.Name
  Dim fragments As String() = name.Split("-".ToCharArray(), StringSplitOptions.RemoveEmptyEntries)

  N = name
  S = Convert.ToInt32(fragments(3))
  C = Convert.ToInt32(fragments(4))
End Sub

There's no need a Try...Catch block, scripts already run in a safe environment. Also, don't use the weird DBNULL constant but Nothing instead. I removed that entirely because if the script throws an exception than the outputs will be Nothing anyway.

Once I have the surface ID (which is an integer luckily) and the Corner index, I graft both the original pointdata and the corner data. Then by replacing the default grafting paths {0;0}, {0;1}, {0;2} etc. with the surface integers, I can create a datatree which uses the surface ID as the paths.

At this point we have all corners that belong together in individual lists. However they are still unsorted. By also grafting and replacing the Corner numbers we can then sort the remaining points using the corners to achieve the final result.

--

David Rutten

david@mcneel.com

Tirol, Austria

Attachments:

• objectname.ghx, 103 KB