Modify an object using a control curve

Rhino
1

example.3dm (155.5 KB)

I have a complicated object. I want to pull one end of it a certain distance in a certain direction, and have the changes drop off to zero at the other end, in such a way that tangents don’t change at the other end. The example shows what I am trying to do. The original object is the black rectangle. The red rectangle is what I want to produce. (Part of it is hidden by the black rectangle.)

The red line is what I am thinking of as a “control curve”. The deviation of that control curve from the black line below controls the distortion of the object (the rectangle).

Can I do this with “Flow along a curve”?

PS: I am using Rhino 4.0. Do I get a prize for “most ancient”? :melting_face:

2

“Flow along curve” does something similar to what I want, but not exactly. (I tried all the options.)

What needs to be done: Get all the control points of all the parts of the object. Move them as described by the control curve. (x and z don’t change; y changes …)

3

you have to be more specific about this.
what s the “complicated object” ?
will it be completely inside the rectangle ?

image
image1652×1154 55.4 KB

and yes it s possible.
for sure with CageEdit
maybe with flowAlongSrf

i do not know - if with rhino 4

like this ?
done with flowAlongSrf

image
image1652×1154 246 KB

flowAlongSrf_HelloWorld_tp_rh4.3dm (1.2 MB)
flowAlongSrf_HelloWorld_tp.3dm (3.9 MB)

kind regards - tom

4

Yes, Flow Along Surface does what I want. Thank you very much.

5

solved ? please mark my post above as solution - so others don t need to dig into the topic.
kind regards - tom