topic Model Space Mystery in Civil 3D Forum

Model Space Mystery

mnorton — Wed, 25 Jan 2017 18:36:11 GMT

I can only see objects in model space through the viewport. When I switch to model space - nothing. I have to expand the viewport to work on the objects in model space is to expand the viewport.

I'm working in Civil 3D 2015 although the drawing was created in an earlier release. The drawing contains more layouts than I would typically use (17) but, theoretically, the program can handle almost 15 times that with enough horsepower. The drawing size is almost 9 mb.

Windows 7

Intel Core i7-4790 CPU @ 3.6 GHz

16.0 GB RAM

64-bit Operating System

I'm installing service packs now.

Re: Model Space Mystery

wfberry — Wed, 25 Jan 2017 18:42:26 GMT

You are possibly zoomed out to "smithereens".

Go to an entity or a point in Prospector and zoom to it.

Bill

Re: Model Space Mystery

AllenJessup — Wed, 25 Jan 2017 19:00:27 GMT

Try turning off Hardware Acceleration. If that bring them back search for a video card update.

Also try selecting areas of the screen to see if there really is something in your view. Similar to @wfberry's idea you can try a Zoom > Object > Last. Make sure your UCS is World.

Re: Model Space Mystery

mnorton — Wed, 25 Jan 2017 21:06:02 GMT

Not a zoom thing. Hardware acceleration is off. I can see everything in an isometric view. I'm digging deep now but once upon a time we used to play a trick on new engineers. We would set the view plane to something other than zero. You could draw objects, list last, etc, but you just couldn't see them. I've been too busy for too long to being playing tricks anymore and I can't remember the variable.

Re: Model Space Mystery

dgorsman — Wed, 25 Jan 2017 21:06:34 GMT

Could be annotation scaling. The viewports are each assigned an annotation scale, while the model space annotation scale is one of the defaults (e.g. 1:1) that isn't in use by any of them. I've had that with a couple of pipeline route maps provided by surveyors. ANNOALLVISIBLE system variable should be checked.

Re: Model Space Mystery

AllenJessup — Wed, 25 Jan 2017 21:08:23 GMT

Try Plan > World.

Re: Model Space Mystery

mnorton — Wed, 25 Jan 2017 21:10:06 GMT

No luck with ANNOALLVISIBLE.

Re: Model Space Mystery

mnorton — Wed, 25 Jan 2017 21:11:27 GMT

Holy crap! I drew a LOT of circles! Good catch, Allen. Thanks.

Re: Model Space Mystery

AllenJessup — Wed, 25 Jan 2017 21:16:41 GMT

You're welcome. Sometimes an answer eventually leaks from my brain. Your comment about your old "trick" triggered it.