yang686526

saving to older dwg versions -- what can be excpected?
saving to older dwg versions -- what can be excpected?
i suddenly started to get error reports that our dwg export failed with a gp (using v 1.14 dlls). it turned out that the default dwg export version was r14 and we had recently introduced some truetype support only present in 2000 and newer. changing the default export version to 2000 solved the problem.
however, what can be expected if you writefile a newer version with new object types back to an older version which do not support them? failure, controlled exception, a consistent file without the new objects, or a best fit conversion of new objects to older more simple objects? is the behaviour documented somewhere?
-rune jorgensen
definitely, saving to older version should not fail or throw exceptions.
new objects will be saved as proxies, if format is new enough to support them, or exploded/converted to blocks for old formats.
for some formats, roundtrip data is saved, if possible.
in this aspect dd behaviour is more or less comatible with acad.
if you have a file that cannot be correctly saved to older version by dd, it would be nice to see it, if possible. (you may mail it to support or attach here, if there is no confidential info)
vladimir