Hi all.
Some of my surfaces appear ok, until i click to select and then it shows as split - strange diagonals appear and I am able to delete one part of a surface and leave the other behind without it having all its edges…
The screen shots probably explain this better than i am(!)
Is there a fix, and / or am i causing it somehow?
thanks
Paul
Hi Paul, it’s hard to tell from your screenshots but it looks like you have several issues. One of them looks typical of having geometry with different tags applied to it and some tags turned off. Also possibly some slight misalignment of edges. Only guess based on what I can see, though.
Thanks Dave. Hope you’re well. I’d upload it but it has a load of junk in it that I’m in the process of cleaning up - I used polycam for the survey… (that is probably the cause of misaligned of edges), but the file is over 60 Megs.
But if i open that group and treble click, it says everything is on ‘untitled’…
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That could be the issue indeed.
I presume you mean Untagged. Do you get the meshes that indicate selected hidden faces when you treble click on the geometry?
Hopefully your cleanup will take care of some of that. If you want to send me the file to look at upload it to DropBox or We Transfer and share the link. You can put it in a private message to me if you don’t want to make it public.
I hope your 2025 is off to a good start.
Ok - i’ll clean up and send it to you later - i have to go out now - its friday night after all!
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Hi Dave - back now!
Yes all good here, happy new year to you!
Cleaned up model attached
Paul
503_00e2.skp (812.8 KB)
Hi Paul. I’m away from the house at the moment but I’ll check when I get back.
Its only off by a fraction of a mm, but the offending wall(s) is(are) not flat. You can check this if you turn on view hidden geometry, set the units display to the max decimal places and use the text tool to label vertices. The green axis value for the vertices on the wall varies. That is causing SketchUp to split the wall into triangular segments, and one of them is missing because its edges are not coplanar.
Were you working with length snapping turned on? That is a frequent source of small errors like this because it does not actually work quite the way that people assume.
Look like @slbaumgartner has identified the issue for you.
Brilliant. thanks.
No, i’m pleased to say that this might not have been my error. Polycam scans surfaces and sometimes I’m finding that two surfaces at right angles to each other don’t actually touch, but are off by half a mil in each direction…
So if a wall hits another wall, it sometimes stops a bit short or the end is buried in a little. either way causing the triangulation you describe. The screenshot shows this - the top grey plane and the other two don’t meet. But its my bathroom and i know they do!
