Linking Block Visibility State to Object Field data?

[Sambo]

Hello, 

 

I'm wondering if its possible to create a lisp or something that would link a scale bar controlled by block visibility states to a user selected viewport and have the visibility state of the block be controlled by that viewports object field data? (specifically the custom scale field). 

[Emmanuel Delay]

I know how to read and set visibility states.

Could you upload an example?

 

Object Field data are a bit of a distant, vague memory to me.

[BIGAL]

Googlr "link dynamic block variable to field"

[tor11]

I think this file can serve as an example.Escala gráfica.dwg

[BIGAL]

I should have mentioned CIV3D has something built in if I remember correct.

 

AutoCAD Map 3D Help: Adding a Scale Bar (autodesk.com)

[tombu]

AutoCAD Map 3D Help: To Create a Customized Scale Bar

Without Map 3D it would be a daunting task.

[BIGAL]

If you have the dynamic block with all your "CORRECT" scales then yes you can click on a viewport and insert block with correct visibility set. It looks like you know about CUSTOMSCALE.

 

Your 1st step is make the dynamic block with the multiple vis states.

 

2nd is get a copy of Lee-macs dynamic block lisp.

 

3rd the answer is in Lee's code. LM:SetVisibilityState

 

Last comment its not a field answer but could be automated to look through layouts.