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Posts: 11
Registered: ‎03-26-2012
Message 1 of 9 (422 Views)

# Subtract objects created with "region"

422 Views, 8 Replies
08-15-2012 06:19 AM

Hi everybody!

One easy way for I calculate the weight of plates with many holes is creating regions and subtract the cuts as i need and after apply "LIST" command for get value of area . But, i cannot subtract the regions, in command line says :

"Command: region

Select objects: Specify opposite corner: 44 found

Select objects:
44 loops extracted.

44 Regions created.

Command: subtract Select solids, surfaces, and regions to subtract from ..

Select objects: 1 found

Select objects: Select solids, surfaces, and regions to subtract ..
Select objects: Specify opposite corner: 4 found

Select objects:
At least two solids, surfaces, or coplanar regions must be selected."

Why? what i do?

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Message 2 of 9 (408 Views)

# Re: Subtract objects created with "region"

08-15-2012 06:58 AM in reply to: brunobiazotti

Attach the file here that exhibits this behavior.

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Posts: 11
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Message 3 of 9 (399 Views)

# Re: Subtract objects created with "region"

08-15-2012 08:51 AM in reply to: JDMather

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Posts: 188
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Message 4 of 9 (393 Views)

# Re: Subtract objects created with "region"

08-15-2012 09:28 AM in reply to: brunobiazotti

You need to put them all at elevation 0.

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Message 5 of 9 (390 Views)

# Re: Subtract objects created with "region"

08-15-2012 09:34 AM in reply to: brunobiazotti

Nothing wrong with it.

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Message 6 of 9 (387 Views)

# Re: Subtract objects created with "region"

Did you find any entities with elevation other than zero? I must have missed them.

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Posts: 11
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Message 7 of 9 (375 Views)

# Re: Subtract objects created with "region"

08-15-2012 10:14 AM in reply to: Patchy

Yes, out of zero elevation. I not understand what happening. I check in the properties of the circles and show me that's ok ZERO, but is lie. The properties not show me the true value of the zero, the accuracy goes beyond that the display of the properties can show me.

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Posts: 188
Registered: ‎02-10-2011
Message 8 of 9 (359 Views)

# Re: Subtract objects created with "region"

08-15-2012 12:04 PM in reply to: brunobiazotti

Not really sure, but I ran "All to Zero" macro and it worked.

Just add this to a button

`^C^C_UCS;;_move _all;;0,0,1e99;;_move _all;;0,0,-1e99;;_chprop;_all;;_thickness;0;;^M;`

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Message 9 of 9 (352 Views)

# Re: Subtract objects created with "region"

08-15-2012 12:52 PM in reply to: brunobiazotti

brunobiazotti wrote:

I check in the properties of the circles and show me that's ok ZERO, ...

Did you check out to 8 decimal places?

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