Help with a connection!?

Hello.

I have a problem. I want to make a connection between a road and number of trees around it.

When I change the road width, I want to make the trees stand closer to each other.

I have made a curve that control the road width and I have made a curve with the trees on – but I don’t know how to connect them.

Anyone?

Replies to This Discussion

Permalink Reply by Hannes Löschke on March 10, 2012 at 4:31am

Its all math...

You have a width of the road w and a number of trees n. All you need to do is find an equaton that produces whatever number of trees you want for a given width. Then use n to subdivide your trees line and find the tree positions.

Or you can use the Remap component to map the current value of w from its range [wmin to wmax] to the range of [nmin to nmax] giving you the corresponding n to the given w.

... sorry, just seem to have misread your post... you really want to have an attractor curve working on a given grid(line) of trees?

Permalink Reply by Marie Kristensen on March 10, 2012 at 4:53am

Thanks for the answer. But I am just started in using this program, so I don’t understand it quite.

I have a picture of my Grasshopper – but I am not sure it is the right way to do it? And I don’t know where to use Remap in this?

Permalink Reply by Hannes Löschke on March 10, 2012 at 5:40am

The math thing is all about finding a relation of one parameter to the other and converting the value of one slider so it creates values such as your number of trees.

Remap is just a simple shortcut if the math relation is linear.

Just plug the R output to where the "Number of trees" slider goes.

Permalink Reply by Marie Kristensen on March 10, 2012 at 5:32am

Yes because it has to follow a city area. But it is also the only solution I could come up with.

Permalink Reply by Hannes Löschke on March 10, 2012 at 5:46am

Offset is really static and gives a constant width for the whole road. If you want th change width through the length of the road, first try to think of a way to construct this with rhino for a simple and short part of the road... then try to find GH components that do what you just did by hand.

Permalink Reply by Marie Kristensen on March 10, 2012 at 5:51am

Thank you! I think it works now.

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