CAD tip # 7003:

Question CAD
% platform category

Modified drawing name as an automatic field.

If you want to insert a text in your drawing (e.g. to the title block) which contains a manipulated name of the current drawing file - e.g. the filename left-trimmed or right-trimmed at a number of characters, you can use a combination of Diesel expressions in an automatic text field (e.g. with the FIELD command).

Some examples:

Drawing file name, no path, from the 3rd character (paste as a Diesel expression to a Diesel-type field):

  
$(substr,$(getvar,DWGNAME),3,99)

Drawing file name, no path, no extension (4 characters), right-trimmed at another 3 characters (paste as a Diesel expression to a Diesel-type field):

  
$(substr,$(getvar,DWGNAME),1,$(-,$(strlen,$(getvar,DWGNAME)),7))

Beginning of the drawing path (12 characters), ellipsis, first 8 characters of the drawing file name (paste as a Diesel expression to a Diesel-type field):

  
$(substr,$(getvar,DWGPREFIX),1,12)...$(substr,$(getvar,DWGNAME),1,8)

Path without the disk letter and the drawing file name, all converted to uppercase (paste as a Diesel expression to a Diesel-type field):

  
$(upper,$(substr,$(getvar,DWGPREFIX),3)$(getvar,DWGNAME))

dwg

ACADLTADT

* CAD

19.10.2009 33149×

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applies to: AutoCAD · AutoCAD LT · AutoCAD Architecture ·

See also:
Tip 14039:	How to display the total volume or surface of 3D solids in DWG?
Tip 13996:	Automatic hide for Revit palettes - save screen space (undocumented).
Tip 13788:	Green square - mathematical charade and parametric constraints in AutoCAD.
Tip 13760:	Parametric text content in Fusion 360 sketches (and models).
Tip 13740:	Dynamic label with filesize of the current DWG file.

Selected tip: Absolute and relative elevations in Revit projects.

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Please use these tips at your own risk.
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