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-   -   【转帖】handle references of dwg spec (http://www.dimcax.com/hust/showthread.php?t=16453)

yang686526 2009-05-05 11:44 AM

【转帖】handle references of dwg spec
 
handle references of dwg spec
handle references of dwg spec
hi,
im writing a dwg file parser, from the public dwg r2000 open design spec, and im having troubles with handle references.
sometimes, i get handle references of code = 0x4.
in the public spec you say "if code = 0x4, do nothing, just read offset and use it as the result".
but counter value is 0.
if a dwg drawing entity has a null layer handle, how can i find the associated layer to this entity?
may the documentation include some notes about layer handles of code = 0x4 and counter=0 ?
thanks in advance.
--
alvaro


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