polygon object controls viewport

[conner717]

Back in 2010 I had looked into a way to have a viewport that links to a rectangle or object within model space such that when moved around the view in paperspace always showed what was within the rectangle or object. Someone gave me a lisp back then but before actually using it I do remember later finding that you can do this within paper space but for the life of me I can't remember now. Thoughts?

[Alfred.NESWADBA]

Hi,

not sure to understand the question correct, please try that and let me know if that's what you are looking for.

After you used PAN/ZOOM in a viewport:

• change to paperspace
• draw a rectangle (best with the size of your viewport or smaller)
• start command _CHSPACE
• select your polyline/rectangle

...not this rectangle is part of the modelspace.

- alfred -

[conner717]

Maybe my original post from back in 2010 will help.. https://forums.autodesk.com/t5/autocad-forum/viewport-question/m-p/2652755#M265739

Is it possible to attach a viewport to a rectangle?

We have a campus map in model space and on one layout we have a viewport showing the entire map with another viewport zoomed in showing the project area. On the entire map portion I have a rectangle showing the area for the project and what I'm wondering is if it's possible to tie the zoomed project area viewport to the rectangle so that I can just slide the rectangle around and have the zoomed viewport follow suit or vice versa, pan the zoomed viewport and have the retangle slide around.

In that thread someone posted the following but I don't remember using it and at this point I'm unsure of how to even use it. I'm guessing I need to create a file that I can then execute from within ACAD but again I'm unsure of how to go about that.

[Z other]^P'_setvar;cvport;(progn(setq v(getvar "cvport")p1(getpoint 
"1st pt:")p2(getcorner p1 "2nd pt:"))v);\\'_zoom;w;!p1;!p2;^P

For what it's worth I know this is possible as I used this idea for 2 years while at that job. I don't think I used that code but I KNOW the concept of what I was trying to do was accomplished and I could slide my box around and the zoomed in detail viewport would reflect whatever the box was over. I seem to remember it was a basic function within autocad but I'm at a loss.