Grasshopper

algorithmic modeling for Rhino

Hello! 

I am trying to obtain a metaballs line around a set of points:

The points that are highlighted in the picture below around a green circle have a higher charge than others:

Currently this is what I have:

Is there anyone that would be able to help me to parametrically recreate the white line shown in the first pictures?

Marilu

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can you post a rh4.0 file?

This is the Rhino 4.0 file

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The initial picture is a metaball that uses lines as inputs as well as points. The Grasshopper metaball component does not allow for that. I'm afraid I have no solution for you other than creating a boatload of very low weighted points along the lines which will drastically slow down your file.

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David Rutten

david@mcneel.com

Poprad, Slovakia

Back in the olden days before grasshopper had built in metaball components I used to make my own.

You can create a mesh height-field for the distance based potential then take sections.

It's easy enough to adapt this with a distance function from lines as well as points

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good one!

something i did not understand.

can someone help me a little further.

thanks

Hi RWNB,

Not sure why it isn't working, except perhaps if you set a different domain for your range, or have a very different size of input curves.

Did you actually download the file above or recreate it from the image ?

(I sometimes set values inside the inputs if I'm being lazy, instead of extracting the parameters or making a panel, but I realize this makes it not obvious just by looking where non-default inputs are being used)

anyway, here's the def with all input geometry internalized

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hi daniel,

i have not changed the gh definition.
maybe the problem lies in the input curves?

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Hi Rassul,

Input the "1" into the "A" plug of the "Division" component.

thanks djordie!

Thank you for the input! very interesting approach!

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