change reference points

Hi! I still have a question that nobody reply my 2 days ago, and I need solve it. I think is not difficult but I can't solve because Im new in Grasshopper. I have this:

-In Rhino, I have a draw, which is the rectangle with some shapes inside, and I have six points as well, they are just above from the Grasshopper draw.

-In Grasshopper, I have the deformation of the Rhino's drawing (the rectangle with the shapes) following the disposition of the those six points.

The thing that I need is change the reference points ( the points wich are in the perimeter of the rectangle and wich are numbered from 0 till 8) to another points that have to be inside the shapes (the points that I wanna make as reference, are drawn in Rhinos).

In this way, I would be able to modified the rectangle repositioning the shapes inside rectangle in their new points.

Basically, is the same, but changing the reference's points.

Someone can help me? Is really important for me.

Thank you very much.

Manuel

Attachments:

MAQUETA POR CAPAS.3dm, 162 KB
GHMAQUETAPORCAPAS_morph.gh, 16 KB

Replies to This Discussion

Permalink Reply by Chris Tietjen on November 2, 2011 at 9:44pm

It might help here if you drew in Rhino using just a few simple shapes both a referenced starting state and the transformed ending state you wish to achieve . Right now I find it most difficult to grasp what the final result is supposed to look like. What you're showing right now seems very abstract yet I'm sure that what you're attempting is to be very tangible. Not seeing the end result clearly I'm at a loss as to how to generate the transitional process.

Chris

Permalink Reply by Danny Boyes on November 3, 2011 at 4:15am

Hi Manuel,

I agree with Chris, it's still not very clear what the outcome should be. But I can offer this: Grasshopper can be considered a programming language. And like other programming languages there needs to be an algorithm for the program to follow. (In case you don't know)

"In mathematics and computer science, an algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function. Algorithms are used for calculation, data processing, and automated reasoning. In simple words an algorithm is a step-by-step procedure for calculations."

If you were able to put together a step by step guide to how you would achieve this manually, this would be your algorithm, and with this you might be able to determine what components are needed in Grasshopper or post it online to get help.

For example it could look something like this:

1) Reference Input Geometry

2) Reference Points

3) Target Points

4) Create Lofting curves through Target Points

5) Create Target Surface by Lofting curves

6) For each reference point do the following:

___a) Find closest point on reference Surface.

___b) determine ref srf UV co-ords of ref pts

___c) Identify UV co-ords on Trgt Srf

___e) Map objects to trgt Srf

etc. etc.