Basic stream filter advise

[tom11 (Tom)]

Hello I have a basic question about how to use the stream filter. I am sure it is very easy but I am new to grasshopper.

I need to control which of 4 inputs is used on the stream filter. I think that I may need to use the expression component to supply the right number gate to the stream filter.

If the input number that i have is smaller than 300 - gate 0
if the number is between 300 - 600 - gate 1
if the number is between 600 -900 - gate 2
if then number is larger than 900 - gate 3

Can anyone help me with how to achieve this? Or direct me to any good tutorials to learn?

[martinsiegrist]

One of many solutions:

stream_filter.gh (24.7 KB)

[HS_Kim]

Check this as well.

FindDom._re.gh (6.7 KB)

[tom11 (Tom)]

Thanks for this much appreciated.

[tom11 (Tom)]

wow that’s a very elegant solution, thanks a lot for your help, much appreciated

[maje90 (Riccardo Majewski)]

In case of uneven divisions, polyline parametrization is handy.
(parameter is a linear interpolation between points, integer part is index of segment, decimal part is the interpolation in that segment…)

stream gate.gh (9.8 KB)
(Extreme number can just be a little less than min and a little more than max, -10000 and 10000 were just an exaggeration…)
Edit, max extreme extra number can be avoided, since extreme point will be an integer number, correct for the purpose.

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Martin’s is the “low level”(low abstraction), always correct, error proof solution.
Kim’s and mine are sort of hacks…

[magicteddy]

Two components solution ?

StreamFilter.gh (9.2 KB)

[martinsiegrist]

Wow

Shame on me…

[tom11 (Tom)]

genius, thanks

[Joseph_Oster]

@tom11

I have a basic question about how to use the stream filter.

It should be noted here that sometimes Pick’n’Choose works where Stream Filter will not.

[tom11 (Tom)]

thanks mate, ill look at this

[tom11 (Tom)]

this really is a beautiful solution, so simple if you know how