How to cut object outside the wall

[Anonymous]

Hello, I have this issue.
I want to cut the object showed in the picture, that way that I get the part inside the exterior walls. I've tried SEO but it doesn't work (probably because it's not realy upside or downside cut, but vertical)
Any tips?
Thank you in advance

[Anonymous]

Anybody?

[Dwight]

SEO is the answer, but extrusion up from a special slab is the solution.

[Ralph Wessel]

WhiteMan wrote:
I want to cut the object showed in the picture, that way that I get the part inside the exterior walls. I've tried SEO but it doesn't work (probably because it's not realy upside or downside cut, but vertical)
Any tips?

Try using OBJECTiVE to model the objects and to do the cutting. Referring to the attached image:

• 1. The domes in the model are swept profiles created with OBJECTiVE. The objects include a setting to control the object smoothness, so you can control the speed of redraw in 3D.
  
  2. You can also use OBJECTiVE's Split tool to cut the objects without SEOs. Just select the objects to cut, click the menu OBJECTiVE > Tools > Split, and trace a line to show where the objects should be split. The offcuts can be deleted or retained as required.
  
  3. The cut objects in 3D - note that I just dragged the offcut segments to the side in this case.
  
  4. The cut objects in 2D - note the display is correct in plan, unlike SEOs (and fast too).

[Anonymous]

Wow, wish I did the whole dome modeling with objective. I've created profiled walls, and than made an object out of them.
Thank's a lot for advice.

[Anonymous]

Dwight wrote:
SEO is the answer, but extrusion up from a special slab is the solution.

Could you please give some more explenation about this technique?

[Dwight]

Study Solid Element Operations in the Reference Material.

[Anonymous]

WhiteMan wrote:

Dwight wrote:
SEO is the answer, but extrusion up from a special slab is the solution.

Could you please give some more explenation about this technique?

I'm not sure if this is what Dwight means, but it's a simple intersection with profiled walls as the targets and a slab as the operator.

[Dwight]

That's not what i mean. SEO "intersection" only solves part of the problem.

I mean to use a perimeter slab with a hole to SEO "subtract with upward extrusion." The slab cuts, the hole preserves.

I do it this way to compensate for the lack of plan view SEO cutting, a much-lamented weakness in SEO actions. If you are doing a lot of SEO, OBJECTIVE tidily defies this heart breaking limitation as Ralph "The Wizard" Wessel cleverly points out.

To hide the SEO parts in the plan view, move the slab [with an opaque cover fill] forward in display order to mask the outer shell parts removed by the SEO action.

[Like a patch would do.]

[Steve Jepson]

Ralph,

Are there any plans to incorporate free-form functionality into OBJECTIVE ?