Surface with double radius of curvature

Grasshopper
1

Hallo dear community,

I have a dummies question.

Is it possible to parameterize in GH, an existing surface from Rhino and make it possible to modify the surface with a double angle of curvature, passing on the axes of its isocurves?

Greeting,
J. Rob

2

Hi John,
I think we’re going to need an image of some sort to follow what you mean here.

3

Hallo Daniel, thanks for the interest.

Here a screen and a GH file with the example.

Chips
Chips943×660 6.31 KB

Chips.gh (153.5 KB)

I need to modify flat surfaces with a surface with double curvature radius, (p.e 20m Radius) in the Iso-axes.

Thanks in advance

4

I used patch for creating the surface through the given curves. it’s a bit slow to compute but it works.

Chips_Re.gh (168.8 KB)

Chips_Re
Chips_Re955×394 66.7 KB

5

Thanks for the interest Mahan,

sorry my ignorance, with this procedure, I can’t understand how to give the radius of curvature.

JRob

6

Sorry, I expressed myself badly.
Double bending radius and not double bending angle.

7

-Those two NURBS curves are not Arcs. Therefore they don’t have radiuses. But you can control the their curvature with " curve control" slider which I put in the file.
-In case if you want those curves to be Arcs you can create arcs instead of NURBS curves.

8

Chips_Re_Arcs.gh (160.5 KB)

2020-06-24 12_29_43-Rhinoceros 6 Commercial- - Perspective
2020-06-24 12_29_43-Rhinoceros 6 Commercial- - Perspective1097×457 44 KB

9

Thanks a lot Mahan,

so it works perfectly!!

Many Thanks
J. Rob