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algorithmic modeling for Rhino

Peter
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Peter's Discussions

image sampler reduce small diameter
8 Replies

Hello,ich have a new Problem.Is it possible to reduce small Diameters, for example ø0.3 or what else in this datatree.Thank you for help.Continue

Tags: sampler, image

Started this discussion. Last reply by Joseph Oster on Tuesday.

remove the zero coordiante of an 2d grid
3 Replies

Hello,i'm new and an absolut beginner of grasshopper.is it possible to remove all the Points with the x- and y- coordinate 0,y or x,0.grasshopper should not begin with Zero... For help, I would be…Continue

Tags: datatree, modify, grid

Started this discussion. Last reply by Chapulin Colorado May 19.

 

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Joseph Oster replied to Peter's discussion image sampler reduce small diameter
"At the risk of beating a dead horse, setting the radius to zero for circles below the minimum size struck me as less than ideal.  Better would be not to have any circle at all in those cases instead of so many with zero radii.  This will…"
Tuesday
Joseph Oster replied to Peter's discussion image sampler reduce small diameter
"By the way, an even simpler way to get smallest and largest values, without 'Sort List', is as follows - 'Bounds (Bnd)' followed by 'Deconstruct Domain (DeDomain)':"
Tuesday
Joseph Oster replied to Peter's discussion image sampler reduce small diameter
"Since the output of the image sampler is between zero and one, all you need to do is subtract that value from one to reverse the effects.  A 'Stream Filter' allows you to switch between the two values:"
Tuesday
Peter replied to Peter's discussion image sampler reduce small diameter
"Joseph, i have one last question. is it possible to add a switch or a button that i can change the black and white color. i mean, now the white color becomes a circle. i want add a switch that the black color becomes a circle without to change the…"
Tuesday
Peter replied to Peter's discussion image sampler reduce small diameter
"very greatly and thank you that you gave me these tips. i'm quite a beginner and so i'm grateful for these good explanations and the best of all, it works."
Tuesday
Joseph Oster replied to Peter's discussion image sampler reduce small diameter
"The error is due, indirectly, to the 'Cull' operation that skips X & Y values <= 4.  You can fix it by applying 'Clean Tree' with 'Remove Empty = True' to the output of the image sampler, before…"
Monday
Peter replied to Peter's discussion image sampler reduce small diameter
"Good morning Joseph, Thank you, it sounds great and it works despite the error."
Monday
Joseph Oster replied to Peter's discussion image sampler reduce small diameter
"There are many ways to handle this, such as defining a domain with a minimum radius or providing a list of radii that each value is rounded to.  Or you could do this - any value smaller than the slider value is converted to zero by an…"
May 19
Peter posted discussions
May 19
Chapulin Colorado replied to Peter's discussion remove the zero coordiante of an 2d grid
"Didnt knew it is possible to use the expression like thisthats really nice!"
May 19
Peter replied to Peter's discussion remove the zero coordiante of an 2d grid
"thank you David, it works."
May 19
David Rutten replied to Peter's discussion remove the zero coordiante of an 2d grid
"Yup, you test whether the X and Y coordinates are small enough (i.e. close to zero), and if both is the case you do not include the point in a Cull Pattern component. In fact going the other way around is more practical, you only include the point…"
May 19

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