Hi!
I’d like to know the exact dimensions and have a proper drawings from a curved shape (the back of the chair attached).
How to do that?!
Johnny
Hi Johnny - I cannot get at your file, but in case it dows what you want, try this plug-in
Measure.rhp (30 KB)
It has two commands, Caliper, which is what you need, I’m guessing, and DimEdgeAngle for marking the angle between two surfaces at a joined edge. That second command is a little dodgy,
Save, unblock, then Drag and drop the rhp file onto Rhino to load it up the first time.
-Pascal
Pascal, After dragging and dropping the plugin it added my downloads folder to my grasshopper plugins , causing all sorts of conflicts.
How can do remove that resource path dragging and dropping created?
Thanks
Hello - where are you seeing this? How can you tell?
-Pascal
the next time i opened rhino and loaded grasshopper its loading all plugins in my downloads folder, which conflict with the ones in the proper folder.
I knew better but was tired and dragged and dropped anyway.
Wow… I don’t know - this should not affect GH, as far as I know. I guess in the short term I’d move all the GH plug-ins in your download folder to a subfolder or something, I’ll see what I can find out.
Or, you might try, with Rhino closed, moving the Measure.rhp someplace else and then start Rhino and drag and drop from the safe location…
-Pascal
Ok, tried but don’t quite know what should be happening?
(Is typing the commands the only possibility? Can I see the plugin somewhere in Rhino?).
I’d like to have flat drawings from a bended shape. So that I know what size of a plywood I should cut - before bendind it.
Johnny
Oh, that is a completely different problem - UnrollSrf of your command here if the surfaces are developable.
-Pascal
Ok, have to try that.
Thank’s, Pascal!
Johnny
Pascal,
Like your Measure rhp. Not sure quite how to use it but it show promise. Would that second tool be correctly called Included Angle between two faces?Hello - that might be a good description if not command name… but I’ve found a bug or two in the Caliper part of the tool - adding the dim in the right place, sometimes, is goofy - I’ll try to find time to sort it out, I think something has changed, maybe, in how dimensions work, or there is just some case that I had not checked before.
@Joseph_Culbert - it’s supposed to work like this:
But sometimes the dims are offset for some reason.
-Pascal
Yeah, I was scratching my head a couple of times with caliper. Be sure to let us know when you get things tuned up, lots of potential here, thanks!
Pascal, regarding the original topic / headline:
- When I change the back of the chair (made with T-Splines) to Rhino object, it becomes like in the picture attached. And the feature You told me to use (‘unroll developable surface’) doesn’t work anymore (it works in all the other parts of the chair, Thank’s!).
Is there anything I can do with the surface when trying to get ‘unrolled drawings?’ Or should I do the back all over with Rhino tools?
- I’d like to have drawings from the ‘top’ point of view as well (the back of the chair), so that I would know the exact the profile of the bending. I wonder how is that possible? It should be 2D drawings, not 3D. And certain view / angle (like the one picture attached)
Thank’s again!
Johnny
Hi Johnny - if the surface is not developable, there is no accurate 2d version possible without taking into consideration some material characteristics, and then it is a guess, very possibly a good guess with the right algorithms etc. The closest Rhino has to this is the Squish command - please see Help on how that works and its limitations. That said, it looks to me, in the images, that it may well be possible to make this shape (chair back) as developeable. Feel free to export that object and send it to me or post it here for a look.
-Pascal
I take it back it seems to work as expected - the discrepancy I thought I was seeing all works out clearly if I use the AddLines option to show how the measurement is taken - so send me examples if it seems weird to you.
@Joseph_Culbert
-Pascal
Working nicely here, with the add lines options that you mention. Would it be too much to ask if you could include the units option for the measurements? Pretty please?
Wait, I just chose a different annotation style and they all changed to inches so I guess my request is not neccesary!