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CAD tip CAD tip # 5762:

Question CAD 
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Q - question

Where to store user drawing data?

A - answer If you want to store user data within an AutoCAD drawing, there are several places you can use:
  1. Integer and real values (numbers) can be stored in the user variables USERI1-USERI5 and USERR1-USERR5 (please note that USERS1-USERS5 values are not stored)
  2. Entity-releated data can be stored in XData records of the individual drawing objects
  3. All types of data (incl. binary) can be saved with a drawing using Dictionaries (XRecords) - this is the right place to store user data
  4. String data can be also stored in the drawing properties (user values)
  5. You can also store data in attributes of an inserted block with a fixed name (not recommended)
  6. Session user data (PC-specific) can be stored in the Windows Registry or in the environment variables
All these places are accessible through VisualLISP, VBA, ARX and .NET.
100% *  CAD 
23.9.2007    8974×  
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applies to: AutoCAD ·

See also:
Tip 14110:Comparison of speed and CPU core usage in CAM operations of commercial and non-commercial versions of Autodesk Fusion.
Tip 14077:How to quantify the carbon footprint on a project in Civil 3D?
Tip 14039:How to display the total volume or surface of 3D solids in DWG?
Tip 13917:Check for concurrently running named licenses (device limit).
Tip 13641:How do I restore an accidentally deleted file in Fusion 360?

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