Pulling irregular curves

lenny12 · 13 Sept 2010, 20:11

I've been trying to duplicate the irregular curved roof of this stadium in Lyon. Using an arc and then extruding line only gives me a symmetrical curve. As you can see the curves of the roofs seem to narrow so the edges can touch. Does anyone have a way this kind of roof can be done?

TIG · 13 Sept 2010, 21:14

Try EEbyRails or CurviLoft ???

jeff hammond · 13 Sept 2010, 21:20

@tig said:

Try EEbyRails or CurviLoft ???

Also, for starters, you might want to extrude the normal arcs the use the scale tool on the surface edges to squish and stretch the arcs.

mitcorb · 13 Sept 2010, 21:23

If you wish to get involved with plugins here are some ideas.
TIG Extrude Tools
FredoScale tools/Taper subtool.
Both found in this forum.

Otherwise, native tools: PushPull, or Follow Me. And then progressive scaling with some manual step by step subdivision.
Any of the above is how I would approach it.
Hope this helps.

Incidentally, I think TIG and Jeff bumped me off the forum by posting at about the same time--is that possible? When I tried to submit the above reply, it told me I had to login.?????????confused????nawwww

TIG · 13 Sept 2010, 21:41

mitcorb... I am NOT guilty !
There must have been an ISP hiccup...

mitcorb · 13 Sept 2010, 22:07

I know it wasn't intentional but given some of the weird goings on wrt internet, networks, and other stuff I may never understand, I'm about ready to believe anything.

TIG · 13 Sept 2010, 22:17

Mods can stop your posts at will... but because we are all of the type==mensch we don't - unless you are a complete dick!!! [and YOU are not!]

mitcorb · 13 Sept 2010, 22:51

Well, I try not to be, but hell, you never know.

Sorry, Lenny12, I hope the above pertinent information is helpful to you.

lenny12 · 15 Sept 2010, 22:59

Guys thanks for all the suggestions. I've been trying some of the plugins, extrusion tools etc. It looks like there is no simple process but I'll take all your suggestions happily. Thanks again.

jeff hammond · 15 Sept 2010, 23:16

@unknownuser said:

Guys thanks for all the suggestions. I've been trying some of the plugins, extrusion tools etc. It looks like there is no simple process but I'll take all your suggestions happily. Thanks again.

i'm guessing you didn't try the standard scale tool?
it doesn't get much easier than that..

[flash=660,405:2tnwaw0e]http://www.youtube.com/v/J8_4JG_6pZ4?fs=1&hl=en_US&rel=0&color1=0x2b405b&color2=0x6b8ab6&border=1[/flash:2tnwaw0e]

mitcorb · 16 Sept 2010, 21:21

You are right, Jeff:
That's a DUH for me!

jgb · 28 Sept 2010, 20:23

@unknownuser said:

@tig said:

Try EEbyRails or CurviLoft ???

Also, for starters, you might want to extrude the normal arcs the use the scale tool on the surface edges to squish and stretch the arcs.

That's the way I would do it.

A while back I needed to draw a drooped mesh roof between 2 curved joists. Think BigMac Arches or better yet, a saddle. (no time to create a pictorial, sorry)

I setup the 2 curved joists with the arc tool. (Saddle back & front edges) Then I ran a line between the apex points. From the 2 points I drew another arc downwards to the desired bulge. (the seat) That created a segment face.

I highlighted one of the joist 1/2 arcs. Then the followme tool pointed to the curve segment.
That gave me a flat cover on 1/2 the roof arc. I deleted the top flat and the 2 end segments faces, and what is left is 1/2 of a curved mesh roof surface. Just copy the surface and flip it into place to complete the roof. Make the join line soft&smooth.

You can do it in less time than it took to read this.