Scale with constraints

Grasshopper
1

Hi,

I am trying to figure out a way to scale surfaces with a certain constraint. I would like to scale surfaces and when surfaces interesect each other, the scale stops for those edges of the surface but continue for the others. I would like to do something like that:

image
image777×557 78.2 KB

I can’t find any component that can do scale with constraints or anything related. Do you have any idea or work arround to do such things?

You can find in attached file the Grasshopper definition that I just started.

Surface constraints.gh (5.2 KB)

Thanks in advance for your support. Highly appreciate :slight_smile:

Frank

2

This could be one way.

Canvas at 01;26;13
Canvas at 01;26;131431×698 108 KB

scale
scale762×708 213 KB

Surface constraints_re.gh (17.4 KB)

3 Likes
3

Clipper plugin: (offset, not scaled)

Surface_constraints_2020Feb24a
Surface_constraints_2020Feb24a.gh (6.3 KB)

4

You can scale one surface based on the scale of the second surface

Surface constraints2.gh (10.1 KB)

image
image1679×576 127 KB

1 Like
5

Check this as well

Surface constraints3.gh (14.6 KB)

6

Hi,

Thanks for your answers. i very appreciate that you spend time on this issue.

That’s interesting component @Joseph_Oster , I’ll give it a try :slight_smile:
However, when offset, surfaces are merge together. I want to keep them as two different surfaces.

Thanks @HS_Kim, that’s also interesting but in this example, if I have more than 2 surfaces that intersect i can’t really use this system.

Thanks @seghierkhaled but I want to have both surfaces to have the same scale ratio. So if one surface is 2x bigger then the other surface should also be 2x bigger.

Thanks again for your answer. Hopefully we can fix that.

Frank