Attractor point

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Permalink Reply by David Rutten on March 1, 2012 at 12:35am

Hi Danny,

you need to insert an algorithm (technically a subroutine) between your Attractor-distance measurement and your extrusion length. You can use an expression to modify these numbers, for example:

E = 1000/d

Where E is the extrusion height and d is the distance from the attractor (if you put this into a F(x) component you only have to write 1000/d btw., the E = is implied). Do note that division like this may result in very high buildings, you might also want to add some protection against that.

Another approach entirely would be to use a Graph Mapper. Along the X axis you have your Attractor-distances, along the Y axis you'll have your Extrusion-heights. Then pick any graph you want to map between these scales.

--

David Rutten

david@mcneel.com

Poprad, Slovakia

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Permalink Reply by Danny Andrés Osorio Gaviria on March 2, 2012 at 2:33pm

Hi David!!!...

It works!!!... you are a genius!!!...

Thank you very much for always be aware of all discussions in the forum... you are really helpful!!!...

Thanks again!!!...

Greetings from Colombia.

Danny.

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Permalink Reply by Michael Pryor on March 11, 2012 at 5:07pm

you could also use remap component and remap the values for 1 to 0  to  0 to 1. inverting the distances proportionally.

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Permalink Reply by konrad k sobon on November 11, 2012 at 8:20pm

David,

From your comment i understand that it's possible to extract x and y parameters from the graph mapper. Can you explain how i would need to go about it?

I am hoping to use an attractor point that will do two things for me:

        1. Based on its distance to a set of curves it will deform them in x and z directions away from the point. I want both of those deformations to be in a form of a gaussian curve thus graph mapper seems to be appropriate. How do i extract x and y so that they drive vector z and x?

thank you,

konrad

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Permalink Reply by mona on October 31, 2012 at 2:52pm

i want to model something like your work,but i want the building around the square to have 1-3 floor, and next layer of building to have 3-5 floors , how should i write the algorithm? can you help me plz ?

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Permalink Reply by mona on November 1, 2012 at 3:58am

for example,i have 2 attractors,for 2 public area , in the first square the height is based on the distance from first point, and in the second square the height of building is based on their distance from second point ,

i have 2 problems:

1 . the height of buildings near first attractors should be relevant two both attractors,not just point 1 .

2. this definition make nearer buildings shorter, but i want to define a special density for that, for instance , the building height should be between a 2 proposed number . how can i reach this goal?

can anyone help me plz ? 

@ Danny : its similar to your project, it would be great help if you can share ur definition plz .

Mona.

Attachments:

• attractor1.3dm, 196 KB
• attractors1.gh, 5 KB

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