I have an issue where I create regions from closed line shapes within certain drawings.
I constructed certain closed elements that did create regions in plan view.
However, later in the session I have exploded these elements to edit further, but they do not create regions again.
Even if I explode the existing region and then immediately try and resave as a region it fails
Command line says : -
''1 closed, degenerate or unsupported object rejected. Open objects must be coplanar. 0 Regions created.''
I did a recover on the drawing which highlighted 4 errors, but the problem remains, but the command now just say's
''Open objects must be coplanar''
2 weeks work with this, and it is in several drawings (or my settings ?)
If I p-edit one of the lines and turn the shape into a polyline (by join) I can save the resulting polyline shape shape back into a region.
Can someone please help - Is t is a Release 2015 glitch ?
Is there a setting that will help me ?
Solved! Go to Solution.
Solved by steven-g. Go to Solution.
Thanks
I was not aware I could do that.
Here is an example
This was a region, but after exploding did not want to go back as a region, unless I pedit the line and made it into a joined poyline first.
FLATTEN and REGION does the trick in your sample.
Thanks very much !
I had not hit the return (on show hidden line) when I tried 'flatten' command before.
One question does remain therefore
How did the exploded region (that was) become unflat when exploded (if you see what I mean)
I took your file and experienced the same behavior in AutoCAD 2015.
I noticed that the shape will hatch ok, so there are no breaks in the boundary objects.
When I create a similar object on the XY plane, I can create a region, explode it, and re-create the region with no problem.
I appears that your object was not created on a single plane. That is why it works after flattening, which pushes all of the objects down onto a single plane.
My apologies. I meant that when the object was edited after it was exploded that some of the new elements were created (or existing objects moved) off of the plane that the rest of the objects occupied.
Is there a sample of the object before it was exploded that I can test?
Thanks Steve.
But the object was a region, so must have been flat ?
I can also pedit one of the lines and join them, and after create a region, which should also mean the shape is flat ? (as per the sample sent)
I thought I read something somewhere about some setting to do with corner spacing or something ?
UnfortunatelyI Exploded all the elements and resaved without noticing issue, so no regions as were available.
I may just have to go with the flattening solution for now.
I am just hoping a cnc router software doues not miss something out in a large sheet as a result
Yes, I tried PEDIT too, and that also worked to re-create the region.
In answer to your question, it would have been flat when created, but as I don't have the original unexploded object, and do not know what edits you performed, I can only speculate about what caused the original issue.
Have you tried to re-create the original object in a new drawing file and see if it experiences the same behavior?
Since I can't replicate the issue in a new drawing, or with a new object in your drawing, I am stuck for another explanation. I am using 2015.
Can you tell me the exact method you used to create the original object? Then a list of the edits you performed, or possible a short video. That would help me to re-create the original issue.
If you see the same behavior again, please post the file here.
Have you downloaded/installed SP1 yet? If not, you can get it here:
It adds stability to the software.
I have the same problem in autocad 2017, and I have the dwg file. please take a look and see what id the problem.
I have a solid. I exploded it. took the region with holes and exploded it again to get all the lines and curves . immediately after exploding I cant create the same region. error: objects must be co-planar.
- flatten solves the problem in this case , but the question is why the objects are not in the same plane after exploding.