How can I model this? A Half dome with ribs

[jiaoyanbing]

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[bpayne]

Congratulations on posting an image with your question!

[sbrown]

I would create an Wall inplace family that includes a solid mass first, then I would make a series of voids that cut out that mass until I get that shape. Possibly a few revolve voids would be easier. Our firm does a lot of this kind of highly detailed classical work. It can be tricky but there is always a way. Here is an image of a curved barrel vault with ribs. Not exactly what you are after, but the process would be the same, in this case its an inplace ceiling solid, with a series of void extrussions, then a "rib" family that is applied. So in your example you may want to make a family for the curved trim.

[bpayne]

This is a quick massing model of the form. Hope this helps.

[SkiSouth]

.how to do

I will answer this way - It can be done. I will not explain how other than this image. With time, a more accurate depiction of your question can be accomplished. (I don't have time to do it correctly right now) an arrayed family of solid/void.

[Steve_Stafford]

I realize that some are getting annoyed by Jiaoyanbing's methods. May I please ask that we refrain from stooping to unpleasantness? Please refrain from responding if you are not interesting in contributing positively.

[SkiSouth]

I. Here is an image of a curved barrel vault with ribs. .

Really nice work. Thanks for posting that. Did you ever render it?

[sbrown]

No, never rendered it. Very fun project though.

[bmullaney82720729]

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That looks amazing!
Did you finish this model??
I would love to see it, if you wouldn't mind sharing.
Thanks.

[david_peterson]

Check out Project Soane
http://www.projectsoane.com/
Kinda cool if you like the roman era