grid points/exclude points from grid/booleans

Hi there!

Need some help..

I have a grid and i want in a way to exclude some points of the grid that are affected by a "circle" around an attractor point.

What i have, is the grid, extracted the X and Y of all points, an attractor point and a circle around it, divided in points which also i extracted X and Y of these points...

so i am thinkig whether i can use booleans or something like that in order to achieve the desired result

i attach the .ghx file and an image...

maybe there is a simpler or total defferent way... if you are confused with what i write though willing to help, ask me to explain you better what i mean!!!

Attachments:

image.jpg, 605 KB
definition.ghx, 171 KB

Replies to This Discussion

Permalink Reply by Pieter Segeren on July 29, 2011 at 7:52am

Hi Strageor, do you want to cull the points inside the circle?

Attachments:

strageor definition PSG.ghx, 80 KB

Permalink Reply by strageor on July 29, 2011 at 7:55am

YOU ARE AMAZING....

so simple... but in my mind was so much complicated...

and what about the oposite? keep the points outside the grid?

thank you so much!

Permalink Reply by strageor on July 29, 2011 at 7:57am

i meant keep the points inside the circle...

found it...

thank you .... :D :D :D

Permalink Reply by strageor on July 29, 2011 at 8:36am

what about more cirlces in the same grid?

Permalink Reply by Pieter Segeren on July 29, 2011 at 9:08am

then I would do this

Attachments:

strageor definition mult PSG.ghx, 82 KB

Permalink Reply by strageor on July 29, 2011 at 9:24am

need to take some grasshopper tutorial lessons from you...

thank you pieter!

Permalink Reply by Michael Pryor on July 29, 2011 at 1:50pm

huh... didn't even know the containment component existed. I usually use a f(x) function and represent the effecting distance with a circle as you know the functions such as x<300 with x being the distance between an attractor and a list a points is only a radial one. Containment will allow any shape to work. Nice.

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