unselectable/disappearing viewports

[Anonymous]

Several of my co-workers and I have experienced viewports that for some unknown reason become unselectable. Also, if one jumps into model space through the viewport, it disappears completely. I thought I found a workaround in saving the drawing, closing cad, re-launching cad and re-opening the drawing but that doesn't always work. Viewports were all rectangular viewports drawn on layer defpoints. This has only happened on 3 or 4 drawings in the last couple months but I have no logical explanation. Any help would be greatly appreciated.

Thanks.

[Anonymous]

What disappears? Model Space?

Have you run an Audit on these files?

Bill

wrote in message news:5264859@discussion.autodesk.com...
Several of my co-workers and I have experienced viewports that for some
unknown reason become unselectable. Also, if one jumps into model space
through the viewport, it disappears completely. I thought I found a
workaround in saving the drawing, closing cad, re-launching cad and
re-opening the drawing but that doesn't always work. Viewports were all
rectangular viewports drawn on layer defpoints. This has only happened on 3
or 4 drawings in the last couple months but I have no logical explanation.
Any help would be greatly appreciated.

Thanks.

[Anonymous]

I've only seen this occur in one case, when a program that shall remain
nameless (not an Autodesk program) was used at some point in the process of
creating the drawing...

http://tinyurl.com/73og4
--

sm

Scott McEachron
DC CADD, Dallas - Fort Worth
http://c3dpavingtheway.blogspot.com/



wrote in message news:5264859@discussion.autodesk.com...
Several of my co-workers and I have experienced viewports that for some
unknown reason become unselectable. Also, if one jumps into model space
through the viewport, it disappears completely. I thought I found a
workaround in saving the drawing, closing cad, re-launching cad and
re-opening the drawing but that doesn't always work. Viewports were all
rectangular viewports drawn on layer defpoints. This has only happened on 3
or 4 drawings in the last couple months but I have no logical explanation.
Any help would be greatly appreciated.

Thanks.

[Anonymous]

Thanks for the replies.

Model space remains, the rectangle drawn on layer defpoints to define the viewport disappears. One can jump between model and paper through the viewport. With all layers on and thawed, the viewport is unselectable. An audit was ran on two of the drawings to no avail.

The most recent drawing was started in LDT and a co-worker picked it up in C3D. To my knowledge, no other software but Autodesk was used.

Thanks.

[Anonymous]

How many viewports do you have in the drawing? Check your MAXACTVP
variable and make sure it is greater than that number.

CJ

demus72 wrote:
> Thanks for the replies.
>
> Model space remains, the rectangle drawn on layer defpoints to define the viewport disappears. One can jump between model and paper through the viewport. With all layers on and thawed, the viewport is unselectable. An audit was ran on two of the drawings to no avail.
>
> The most recent drawing was started in LDT and a co-worker picked it up in C3D. To my knowledge, no other software but Autodesk was used.
>
> Thanks.

[Anonymous]

A couple of my coworkers have also experienced this problem. Was there ever an explaination as to why the viewports are becoming unselectable? I keep mine on their own layer, and sometimes the border just disappears, you can't select it anymore. You can hop into it and work on it, but forget about adjusting the properties or changing the location. The only thing you can do to fix it is to delete the whole tab and start again. Has anybody figured it out yet?

[sboon]

Is it possible that you have one viewport inside another, or two viewports at the same location?

[DSPatterson]

I have had the same problem. I've found that if you turn on/thaw all the layers, then switch between sheets/tabs, that will enable the viewports for selection again. I have also changed my viewports to a new, non-plotable layer, just in case.

[dougnorton]

Also, check if the defpoints (or whatever) layer is frozen in that viewport, either through having used the vplayer command, or by setting VP freeze in the layer dialog box. It shouldn't affect the viewport in paperspace, but it does.
Doug

[t_mckenzie]

I don't know the actual issue, but I found a solution that works for us. We noticed that our vports that were on the layer defpoints would be "untouchable" whenever layer 0 was turned off or frozen. As several others mentioned, we now have a dedicated vports layer set to not plot.

[tjshaffer]

Unfortunately, this still happens to me too.  After repeatedly trying different work-arounds I found this to be the easiest way to select my vport: 1] select the Pspace tab you need to be in  2] in 'Properties' palette click on 'Quick Select' at top right then in the 'Object type' drop-down select 'Viewport. "Value' field is ByLayer (see attached 'Quick Select' screen shot for settings).  3] Click OK and you should see the vport highlighted with grips.

[lostinthought005]

Check your layers perhaps your veiw ports where on a frozen or off layer.

[lostinthought005]

It keeps disappearing but i figured out it is because of my layer states keep turning off th veiwports layer

[cfundyrun]

Make sure layer 0 is unfrozen and defpoints is unfrozen.  Click into the model space tab, then back to paperspace.  Then REGEN.

[makatski]

excellent. this helped! 

[evilla19]

This fixed the issue for me. Thanks, t_mckenzie

[mmcdowell7XRNN]

When working with lots of viewports on multiple layouts in AutoCAD, users can run into a problem when they create a viewport, and it

disables or turns off a previous viewport, making its contents disappear.

This is usually solved by setting the MAXACTVP system variable to a higher number. This sets the maximum number of active viewports allowed in AutoCAD. The maximum is 64.