CAD tip # 13578:

Question CAD
% platform category

Change the block attribute type from variable to constant or vice versa.

With the freeware utility Att2Cons you can convert the type of selected block attribute (on inserted blocks) from variable to constant or from constant to variable.

The values of constant attributes are stored in block definitions (and so they are identical in all instances), the values of variable attributes are stored in block references (and so they may differ in each instance).

Download the LISP utility from Download, load it into your AutoCAD with APPLOAD and then type the command ATT2CONS to convert to constant attributes or ATT2VAR to convert to variable attributes. You can specify the attribute by picking in the drawing (picking an example). All these attributes in all references of that block will be modified. The drawing will usually not change visually. When converting variable attributes to constant ones, the default value will be used (and the original variable one will be lost).

Test it on Att2Cons sample DWG

ACADADTPlantACADMCivilMap

* CAD

16.12.2022 2879×

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applies to: AutoCAD · AutoCAD Architecture · AutoCAD Plant 3D · AutoCAD Mechanical · Civil 3D · AutoCAD Map 3D ·

See also:
Tip 11289:	Adding, multiplying and rounding numbers inside DWG drawing texts - NumInText.
Tip 10761:	Dynamic block attributes do not respect visibility states.
Tip 6381:	Arithmetic functions in AutoCAD fields.
Tip 1451:	How to mirror a block with text when text should remain readable?

Selected tip: How to record a walkthrough animation in AutoCAD 2007?

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