Divide domain in unequal segments

Hello everyone,

I'm writing VB script that does the same as "Divide Domain" but in unequal segments, given a list of "weights", so I can meld the outputs _H0 and _H (image).

The problem is I don't know how to output a "Domain". Is it a variable type? Or a collection type?

Here is the code below, where I have to output two sets of values...

Thanks in advance,

Eduardo

partes.Count()

Dim totalDePartes As Integer

totalDePartes = 0

For Each elem As Integer In partes

totalDePartes = totalDePartes + elem

Dim Hparcial As Double

Hparcial = H / totalDePartes

Dim Hs As List(Of Double)

Hs = New List(Of Double)()

Dim H0s As List(Of Double)

H0s = New List(Of Double)()

Dim H0parcial As Double

H0parcial = H0

For i As Integer = 0 To (iList - 1)

Hs.Add(partes(i) * Hparcial)

If i <> 0 Then H0parcial = H0parcial + (partes(i - 1) * Hparcial) H0s.Add(H0parcial)

_H = Hs

_H0 = H0s

Attachments:

unequalDivideDomain.png, 238 KB

Replies to This Discussion

Permalink Reply by castroecosta on August 24, 2011 at 12:52pm

I found something in Grasshopper SDK: GH_Interval1D Structure

It seems what I need, but how can I use it in VBScripting?

Permalink Reply by Andy VanMater on August 26, 2011 at 6:10pm

In short the answer to your question is yes you can divide a surface into unequal segments. They will still be grids but they can have whatever spacing you choose.

A domain in VB is an interval so you would do the following:

dim int1 as new inteval(0,1)

I suggest that you "reparameterize" your surface in code which happens like this:

(assuming that "sur" is a surface you've brought in or already dim'ed)

sur.setdomain(0, int1)

sur.setdomain(1,int1)

then if you want to cut the surface up into whatever pieces you can use the domains like percentages so 0 to .2 would be from the start to 20% and .2 to .3 would be 20% to 30% and so on.

I am not quite sure what you want with the chopped up domain unless you are trying to split the surface in which case please see the ghx I attached.

you could run that trim in a for loop to get a bunch of parts and add those surfaces to a list. Let me know if this is not what you needed and I'll see what I can do to help.

Attachments:

surface trim.ghx, 16 KB

Permalink Reply by castroecosta on August 30, 2011 at 3:44am

Hi Andy!

Thanks for your reply. That's exactly what I was looking for, interval-wise. Thanks!

However, the intervals are not to generate trimmed surfaces, but rather to convey abstract data about (also) abstract objects. This is because I'm dealing with a complex program and i have to cut down on the geometry :p Basically I'll be using GH to generate the geometry at the very end, and meanwhile taking advantage of the dataflow capabilities...

Thanks again!

Eduardo

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