VORONOI ATRACTOR POINTS

Hello I´m new in grasshopper and I´m learning little by little.

I have made a Voronoi cilinder following a post from this forum. Since here everything was ok, now I understand more or less how grasshopper works.

Now I want a little more, I want to make the voronoi cells more condensed and smaller in the upper part of the cylinder (Like a size degrade), i supose that it could be done with atracctors or something like that... but i have no idea how to do it.

If anybody knows how to do it, it wolud be great if he had time to solve it.

Thanks in advance, and sorry for my english...

Attachments:

CILINDRO VORONOI 2.gh, 16 KB
CILINDRO VORONOI.jpg, 282 KB

Replies to This Discussion

Permalink Reply by Christopher Edgemon on July 17, 2015 at 3:42am

To make the voronoi cells smaller at the top, you want to have more points at the top than at the bottom.

Here's a modification of your definition that remaps the Z-coordinate of all the points using a graph mapper.

Attachments:

CILINDROVORONOI2.gh, 22 KB

Permalink Reply by ANDRES on July 17, 2015 at 4:01am

Wow!! thanks a lot is excatly what i wanted...

I do not understand what the graph mapper does but im gonna look for a tutorial to undesstand it.

Thank you Very much!

Permalink Reply by Christopher Edgemon on July 17, 2015 at 7:30am

I'm not sure I understand the graph mapper either, but in this case, I think you can think of the x variable as the input and the y value as the output.

So if you have a straight line from 0 to 1, that will map every number to itself.

If you have a curve like the one attached, a number like .2 would be mapped to .5, .5 to .7, etc.

The only other thing is to convert the Z values to a range from 0-1, then remap them from 0-140 after putting them through the graph. (I am sure there is a better way to do that than my multiply / divide approach)

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