Hi,
Newbie here. I’m trying to create an illustration of Einstein’s classic balls-deforming-rubber-sheet model of gravity - something like this one https://images.slideplayer.com/14/4449317/slides/slide_7.jpg. I’m not sure how to create the indentations - advice gratefully received.
Many thanks,
Kate J
Try the Drape command in the Top view playing with the spacing of the control points and the max depth. Smooth can be used on the resulting surface as well to get a larger falloff of the indentation although you’ll need to move the surface a little afterward too. And flip the model over of course to view it as shown.
Hi Kate - a couple of ways come to mind - one is to draw the shape of the depression as a curve, Revolve it, then trim that into the plane.
-Pascal
Thank you! That looks brilliant - I’ll give that a try (I’ve never used drape before)
Thanks very much! - I have been trying something similar but didn’t know how to use trim - will have a play.
Hi Pascal,
I got as far as revolving the curves to make the 3D shapes but couldn't figure out how to trim "into the plane" - whenever I tried, the thing (solid or plane) I was trying to trim just disappeared completely. I read everything I could find but I don't find the rhino instructions very intuitive. Could you spare a couple of minutes to walk me through that step?Hi Kate - try this:
In Top, hide the sphere if it is visible.
DupBorder on rgw revolve and select the curve,
Start Trim and trim out the plane that is inside that circle by clicking on it - if the revolved surface gets in the way, hide it, then trim.
There are some shortcuts to make that all maybe a little quicker but for now do it that way.
@k.jeffery - any luck with this?
-Pascal
Thank. You! I’ll give it a try today
Best wishes,
Kate