I'm confused here.

[john.p.addy]

I'm in working on ACAD 2023 and trying a simple command.  Offset.  I have attached a .dwg file.  The P-line in Red I can offset it to the opposite side of the white lines it does it just fine.  When I try to offset it to toward the white lines it won't offset, which is the way I'm needing to offset it to.  

I'm confused why it won't offset the way I'm needing it to go

[Jason.Piercey · Accepted solution]

Try closing the polyline first. 

[john.p.addy]

IT IS CLOSED !

[Jason.Piercey]

[Jason.Piercey]

Examine the intersection/common vertex at the lower left curve and horizontal segment.

[john.p.addy]

OK then please explain what you mean by close it.  I just went an hatched it with picking a point and it hatch as you see here.  If the pline wasn't closed then I wouldn't have been able to hatch it by just picking a point.

[cadffm]

CLOSED or open is a property of polylines.

How many corners for a rectangl?

A Rectang needs 4 vertex and CLOSE

or the stupid rectangle needs 5 corners (5 vertex, the 1st and the 5th on top og the 1st)

[john.p.addy]

Please explain how to close the pline then.  Ive never heard of this before.

[Jason.Piercey]

The PEDIT command has a close option but in this case it adds another curved segment. Instead grip the end of the curved segment/vertex I mentioned before and snap it to the end of the horizontal segment. It offsets fine (even though it is technically still "open") if you use the close option after snapping the segments it still offsets without issue.

[TomBeauford]

You've always been able to hatch a polyline by just picking just a point. You can even use a hatch gap tolerance to hatch one with a gap.

Just pick the polyline an close it in the Properties Palette.

[Jason.Piercey]

Also, the HPGAPTOL system variable may be of interest to you.

[john.p.addy]

actually I zoomed in very close and The intersection/common vertex at the lower left curve and horizontal segment.  The curve was not connected to the end of the line.  I did get it connected but and was able to get it to offset 

thank you for your help.  I have never came across that before, usually it happens when don't close all the way and you can see it.  not where the plines are over lapping.

[Valentin_CAD]

@john.p.addy ,

Note the two grips at the lower left and an extra line at the bottom. Correcting this will help.

   

[cadffm]

That wouldn't be part of the first hour of (my) schooling polylines, but of the second.

Select the line, change property CLOSED to Yes

But you should also DELETE the useless Vertex 37 and edit the bulge of vertex35-36