Topic: Area help on this part

[Biscuits]

Using Windows XP pro & Autocad Mech 2010 here.
The "area" command used on the attached part results in "Area calculation failed." on the command line.
However, the properties dialogue does give a value for area.
Autocad says this is a "LWPOLYLINE".
When I use "CONVERTPOLY" to change it to a "Heavy" polyline, the area command works.
I can find no duplicate objects or overlapping lines and as a test for a closed object, the hatch command does work properly.
I've exploded the object, did a "PEDIT" to convert back to a polyline again, and tried the "EDIT VERTEX" command to follow the perimeter for broken lines.
The only thing that has worked is to convert to the old standard polyline.

I could redraw but what a pain as this is beginning to show up more  & more often.
We had no issues before the develpoement of lwpolylines.

Any clues as to what's going on here?
Thanks for helping!

[Crank]

Tested with vanilla 2008 and 2011 and I didn't have any problems with it.
But the lwpoly isn't closed, so perhaps that's causing your problem.

[Biscuits]

Thanks Crank.
Dug deeper and found (2) fillets on the left end that were off.
Still doesn't explain why, when converted to a heavy polyline "Area" works ok.
Just another bug in the ointment, I suppose.

Have a good weekend!