Tree Question

I have a question regarding these confusing trees. Any insight would be incredibly appreciated.

I have a series of lines intersecting with a bunch of breps - and im trying to select all the points which intersect with each of the lines separately - ie all the intersection from line 1, line 2, - so that i can reconnect them once again.

any ideas? ive been playing with the tree branch/ item component but i cant figure it out. in addition i looked at the design -analyze tutorial but that didnt help me.

Tags: trees

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Permalink Reply by Vicente Soler on July 25, 2009 at 7:23pm

The resulting list is allready divided into branches, each corresponding to the input curves. So all the points that intersect with each line are grouped together. What do you mean with 'reconnect them once again'?

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Permalink Reply by Stan Vinokur on July 25, 2009 at 8:43pm

hey Vincent thanks a bunch for the reply.

i uploaded the file. basically i want to make a curve that would go through all the points that are the result of the intersection of the one line and the series of breps.

thanks a lot for all the help - i really appreciate it

Attachments:

test1_Tree.ghx, 107 KB
test1 tree.3dm, 636 KB

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Permalink Reply by Vicente Soler on July 25, 2009 at 9:28pm

The .3dm file seems to be corrupt. Nevertheless, try setting the intersect component as cross-reference. The graft component is not necesary.

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Permalink Reply by Stan Vinokur on July 25, 2009 at 8:47pm

Im sorry I miss spelled your name =).

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Permalink Reply by Stan Vinokur on July 25, 2009 at 9:39pm

i think its because its an sr6 file. I tried the cross reference however it still doesnt produce one uninterepted line reconnecting all of the intersections that happened with each line. (if that makes any sense)

Attachments:

test1 tree2.3dm, 625 KB

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Permalink Reply by Vicente Soler on July 26, 2009 at 12:14am

> i think its because its an sr6 file.
I just realized i don't even have sr2 installed. Today i installed windows 7 x64 and i'm trying V5 beta 64 bits.

Sorry, i'm a bit slow today. To achieve what you want you need to flatten the tree one step down, there are no components for achieving this easily, so the quickest way would be to script the intersection (i think). Copy this to a vb.net component:



Dim tol As Double = doc.AbsoluteTolerance

Dim pts As New List(Of On3dPoint)

For i As Integer = 0 To x.count - 1

Dim curves As New list(Of OnCurve)

Dim pt As New on3dpointarray

rhutil.RhinoCurveBrepIntersect(y, x(i), tol, curves.toarray, pt)

For j As Integer = 0 To pt.Count - 1

pts.Add(pt(j))

Next

Next

a = pts

Connect the breps to the x input and the curves to the y input. Set only the x input as 'list'. Connect the interpolate curve component directly to the A output. The brep list order is important.