Updating Attribute Value based On a Linear Constraint Parameter

[harilalmn]

Hi all,

I was creating a dynamic block. Is there any way to link the value of a linear constraint parameter to the value of an attribute?

 

Please see the attached image.

I want the value of attribute "DIST" to update when ever the value of linear constraint parameter "d1" changes.

[JPlanera]

You may wasnt to investigate the FIELD function. In this case, i believe the Object option is what you need

[irneb]

Or while inside the BEdit environment you can set the default value of the attribute to a field linking to a block placeholder object - which should have the d1 parameter as a property. That way a new insertion would also default to an "auto"-updating value linked to the d1 parameter.

 

Unfortunately if you have several blocks already done, you'll need to manually add a field to each. Or erase and redo them. Or write some lisp to obtain the ObjectID of these parameters and set the attribute's fieldcode to match.

 

...

 

Or, you could rename the AttDef inside BEdit. Then use AttSync to reset the attributes to the new default. :wink:

[harilalmn]

JPlanera and irneb,

Thanks a lot... That works fine for me...

[Grant]

Last option is Vlisp by extracting the info of the block when you update the attribute