Adapting a catenary shell in Kangaroo to perimetral arches

Replies to This Discussion

Permalink Reply by nikos tzar on September 17, 2014 at 10:27am

Hello Claudia,

The anchor points should be selected from the vertices of the original mesh. You can either select them from the [wbVertices] output by item's index, or you could bake them to rhino and select them from there. So, the answer is: you can select as many anchor points as you like, as long as they are on the mesh vertices. (the anchor points you have selected on the arc do nothing by the way)

Permalink Reply by Claudia on September 17, 2014 at 11:05am

I was trying the wrong way :) 

Thank you!

Permalink Reply by ng5 Alex on September 17, 2014 at 10:30am

Hello Claudia

you can do the following

You assign to pull the perimeter naked points to pull to curve force component. you can access these with the naked points component from kangaroo, bake them and select the two list of point each for each curve.

I have selected a random point form the mesh points to see that you can use any point as anchor point in grasshopper.

you will need the latest kangaroo and grasshopper for the files to work.

cheers

alex

Attachments:

• 02_catenary_MOD_1.gh, 26 KB
• 02_CATENARYMOD_1.3dm, 114 KB

Permalink Reply by Claudia on September 17, 2014 at 11:04am

Thank you very much for your reply!

Where do you say "bake to select pull points" , you mean the points to pull like the one you inserted as an example?

So I can adapt only the points extrapolated from the initial mesh?

Permalink Reply by ng5 Alex on September 17, 2014 at 11:10am

you bake these points (they are all the perimeter mesh naked points) to select the two rows of points under the curves, in two lists (that is why the two points components and entwine). Each set of points goes along with the curve to be pulled. So if the upper set of points, in canvas, is the right one in viewport, take care to select the right curve first, when setting one curve from the viewport.

Permalink Reply by Claudia on September 17, 2014 at 11:14am

Ok, it's clear! Thanks! :)

Permalink Reply by ZAQI FATHIS on September 17, 2014 at 10:47am

hey Claudia,

The problem is because your arches didn't fit in the initial mesh. So, you can either pull/push your anchor points to make a specific arches, or you could loft these two arches and changed it into mesh.

btw,this is simple step. but, you must change the definition of the anchor points. I hope it will help you

cheers!!

zaqi

Attachments:

• 02_CATENARYMOD-zaqi.3dm, 248 KB
• 02_catenary_MOD- zaqi.gh, 29 KB

Permalink Reply by Claudia on September 17, 2014 at 11:56am

thank you very much :)