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Author Topic: Auto Add Xdata!  (Read 1829 times)

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guohq

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Auto Add Xdata!
« on: May 03, 2013, 11:47:47 AM »
I have some dwg files.I edit them in AutoCAD2008 and saved with AutoCAD2000. when I open them in AutoCAD2002,every entity is added a new xdata like this  ("ACAD" (1000 . "RTMaterial") (1005 . "6AD")) . who can tell me why?
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TheMaster

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Re: Auto Add Xdata!
« Reply #1 on: May 04, 2013, 10:08:56 PM »
Quote from: guohq on May 03, 2013, 11:47:47 AM
I have some dwg files.I edit them in AutoCAD2008 and saved with AutoCAD2000. when I open them in AutoCAD2002,every entity is added a new xdata like this  ("ACAD" (1000 . "RTMaterial") (1005 . "6AD")) . who can tell me why?

"RT" stands for round-trip. 

It holds the handle of a material for the entity in xdata for round-trip to older releases where the entity doesn't have a material id.
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