"doubly-closed" blocks in hatches

[Anonymous]

I've got a tube steel block (basically a circle in a circle as a
block)inside a wall.

I want to hatch the wall, but not inside the tube steel.

Right now no matter which "island" option I choose, it gets me outside
the tube steel, not inside the section itself, but it hatches in the
interior of the tube steel.

Is there a way to get acad to not want to hatch inside a "doubly closed"
block?

Thanks,

Jonathan

[Anonymous]

why not draw a circle around the exterior dia of your section then select that as one of the boundaries?
Or am i being dumb?
cheers
matt

[Anonymous]

You need to "Remove boundaries" (the inner circle) after you do an "Add:
Pick points" for the wall.

--
Daniel J. Altamura, R.A.
Altamura Architectural Consulting
and SoftWorx, Autodesk Authorized Developer
http://partnerproducts.autodesk.com/popups/company.asp?rdid=2139
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"JC" wrote in message
news:5453876@discussion.autodesk.com...
I've got a tube steel block (basically a circle in a circle as a
block)inside a wall.

I want to hatch the wall, but not inside the tube steel.

Right now no matter which "island" option I choose, it gets me outside
the tube steel, not inside the section itself, but it hatches in the
interior of the tube steel.

Is there a way to get acad to not want to hatch inside a "doubly closed"
block?

Thanks,

Jonathan

[Anonymous]

I would draw a polyline around your boundaries, and use select objects mode. You would select both the Polyline for the wall, and circle for the Steel tube. Hatch will recognize the circle as an inner boundary, and will not hatch it.

This method works nicely for a lot of reasons. The biggest one being that if you have to move that tube tomorrow, you can do with the hatch patterns going along with it.

[Anonymous]

Hi Matt.

Yeah. Actually it is a tube steel member. Not quite two circles.
Predefined as a block. There are a ton of them (no pun intended).

[ An aside FWIW: These days I try and put blocks on layer 0, with
linetype and color set to "by block". I just move the block to the
appropriate layer once inserted. Don't ask me why it seems to work but
it does.]

These are rectangles essentially with chamfered edges. If I explode them
then I get the lines, the chamfers on the inside and outside
portion...If I have to move a bunch of them - PITA.

Anybody run into this?

I actually am hatching the interior of the blocks as well (because they
get cut in plan and section too). Though I'm *sure* this does not make a
difference.

- Jonathan

[Anonymous]

Hi All.

I should be able to move forward with this.

Cheers + Thanks,

Jonathn



cadbydx wrote:
> I would draw a polyline around your boundaries, and use select objects mode. You would select both the Polyline for the wall, and circle for the Steel tube. Hatch will recognize the circle as an inner boundary, and will not hatch it.
>
> This method works nicely for a lot of reasons. The biggest one being that if you have to move that tube tomorrow, you can do with the hatch patterns going along with it.