Random spurious points after Sketch/Trim commands

[PDACTL]

I'm using AutoCAD 2023 1.4

I've been getting what seemed like random points appearing on my drawings since switching to this version.

On closer inspection they are Polylines with only two (coincident) vertices.

I have finally worked out where they are coming from!

If I add a sketch polyline and trim it (on the origin side) to another entity which it crosses all seems good. However, when I reopen the drawing later there is one of the dots at the start point of the sketch.

Is this a bug in my version? (it's not just my installation as colleague also has this behaviour)

[pendean]

Not seeing anything like that here: can you show us in a video or a series of screenshots?

Or do you just need to set GFXDX12 variable to 0 (that's a zero) then restart AutoCAD2023.

And/or start GRAPHICSCONFIG command and change the 2D Display Settings pulldown from "advanced mode" to one of the other choices.

Let us know.

[PDACTL]

It's not a graphics glitch - there's an actual entity there.

Command: (entget (entsel))
Select object: ; error: bad argument type: lentityp (<Entity name: 1e5412449d0> (151.934 177.244 0.0))
Command: (entmod (entsel))
Select object: ; error: bad DXF group: <Entity name: 1e5412449d0>

Only appears after reopening the drawing.

[pendean]

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@PDACTL wrote:

It's not a graphics glitch - there's an actual entity there....

Only appears after reopening the drawing.

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You'll need to share one or more such DWG files here please.

[PDACTL]

It seems the trim command is irrelevant - a simple sketch does it.

In a new drawing:

Command:
Command: SKETCH Type = Polyline Increment = 1.00 Tolerance = 0.50
Specify sketch or [Type/Increment/toLerance]:
Specify sketch:
1 polyline with 46 edges recorded.

Save and open same drawing:

Command:
Opening an AutoCAD 2018 format file.
Regenerating model.
A vertex was added to a 2D pline (2D5) which had only one vertex.

I hadn't noticed the start up comment above before.

However, if I use the default .dwt template this issue doesn't occur.

What could be in our company template which might cause this?

[pendean]

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@PDACTL wrote:

It seems the trim command is irrelevant - a simple sketch does it....

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Following your instructions, not seeing anything here

Same for starting from one of our own templates. Can you show us in screenshots what you're seeing?

You you could share both DWG files (where it shows points and where it does not) for someone here to dissect.

[PDACTL]

Your screenshot shows the same message I get.

Attached drawing is new and based on default AutoCAD template.

I hadn't realised that default sketch was lines and not a pline yesterday, so not related to our template.

Just did "sketch" "type" "p" and drew a squiggle.

Saved.

Opened.

Dot appears at left end of polyline.

It's not exactly at the first point of polyline though.

[pendean]

Do you mean this one dot that seems selectable to erase?

Looks to be a remnant of or unintentional extra from SKETCH command's start (if that is where you started) perhaps.

Looks like I can reproduce it in your file too

Interesting. Not seeing anything that would stop it, and since I almost never use SKTECH command I'm not sure what there is to stop it, none of the SKETCH variables seems to do much to address it.

[PDACTL]

Been using various releases of AutoCAD since the early 90s (R11?), but this behaviour only started with this version!

I can delete them, but they shouldn't be there in the first place.

[cadffm]

This problem is not new, I like to guess it's the same as ever, but pretty sure fore the last decade!

[pendean]

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@PDACTL wrote:

Been using various releases of AutoCAD since the early 90s (R11?), but this behaviour only started with this version!

I can delete them, but they shouldn't be there in the first place.

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R9 in DOS here.  I'll take your word for it, SKETCH is not something we ever used in our offices, we prefer other built-in methods to communicate comments and ideas in modern versions of AutoCAD.

BUT... Here is how to open a support case with Autodesk if you are on subscription to seek out Autodesk Support's help:
https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/How-to-find-my-sup...

You can also report issues with the software here too https://www.autodesk.com/company/contact-us/product-feedback 

Best wishes.

[TheCADnoob]

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@PDACTL  a écrit :

Been using various releases of AutoCAD since the early 90s (R11?), but this behaviour only started with this version!

I can delete them, but they shouldn't be there in the first place.

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I think deleting them is going to have to be how you handle them. PURGE and OVERKILL both seem to be able to get them. 

This issue is at least 10 years

 

. https://forums.autodesk.com/t5/autocad-forum/using-sketch-command-results-in-zero-length-lines-near-...

I think sketch is just one of those overlooked tools in the application. Sketch has some other interesting bugs as well that i documented about 5 years back. 

If you change your visual style sometimes you get something mimicking your movement off to the left bottom corner. Its hard to see sometimes but its there. Its like its following your moment in a small space. In this one you can see it next to the gnomon at the origin. (you have to view the image zoomed to see it here)

 

Also if you draft in multiple viewports, sketch does not show up until you do a regen in your other view ports.