topic Betreff: Variable behavior of OFFSET command in AutoCAD Forum

Variable behavior of OFFSET command

Jeew-m — Fri, 15 Dec 2017 06:12:00 GMT

Dear All,

Attached dwg is a polyline.

I need to offset it twice with 3.6m width to the left.

First 3.6m works well.

Next one it says 'cannot offset that object.'

If I offset 3.6m and then 3m and then 0.6m it works.

If I offset 7.2m (which is 3.6*2) at once it works.

Why is this behavior.

Thanks in advance.

Re: Variable behavior of OFFSET command

imadHabash — Fri, 15 Dec 2017 08:13:22 GMT

Hi,

it will be solved if you FLATTEN ( N ) your polyline first . but i have some notes :

your file need Audit and Purge ( Regaapps ) .
the offset distance ( 3.6 ) it's too small or very tight compare with the polyline length ( 36495 ) .
your polyline consists of of thousand of attached peaces and i beleive that this will make problems and delayed issues .

Regards,

Re: Variable behavior of OFFSET command

Jeew-m — Fri, 15 Dec 2017 08:31:37 GMT

Thanks for the answer.

Flatten with remove hidden lines NO does not work.

I did the others as well. But same result.

This is a lane offset of a road.

There is a way to achieve this. . But I am curious to know why it behaves strangely in the normal procedure.

Re: Variable behavior of OFFSET command

imadHabash — Fri, 15 Dec 2017 11:02:40 GMT

would you please try to Ctrl+C the polyline to a new blank dwg then FLATTEN it and see if any changes .

Re: Variable behavior of OFFSET command

cadffm — Fri, 15 Dec 2017 11:15:46 GMT

EDIT:SORRY, My translation problem. Not to each side. You want offset to the left and the new object offset with 3.6 to th left too.

;------------------------------------------------

7772 Segments is hard stuff.

I know about these problems, BUT:

I can offset them in each direction with 3.6 with 2018.1.1 also with 2013 SP2, which version are you using?
Do you tested it in THIS attached dwg yourself?

;------------------------------------------------

Betreff: Variable behavior of OFFSET command

cadffm — Fri, 15 Dec 2017 11:28:24 GMT

@Jeew-m

You work in a high coordinate range, there are often problems
and especially the offset command is a bit buggy (more than in other software products)
I use for such own functions or simple macros and the standard functions.

move to 0.0
make what i want (hatching, stretching or offsetting)
move back

Try it, it wants work.

Betreff: Variable behavior of OFFSET command

Jeew-m — Thu, 21 Dec 2017 07:15:21 GMT

Thanks CADffm.

That really works fine. So this is because of high coordinate range.

Thanks everyone for comments.