Originally Posted by
sinc
Some people have migrated their desc keys from Land Desktop. I didn't, and took advantage of the switch to C3D to revise our desc keys so they work better with C3D. C3D has more capabilities than LDT, so we revamped our desc keys to take advantage of that fact.
It also gave me a chance to finish cleaning up the mess that started when Autodesk changed the way INSUNITS works in 2006, and make sure all our symbols were in the correct units. And gave me a chance to clean all those stupid ADCADD_ZZ blocks out of our symbols. And fix the blocks, replacing thick polylines with solid hatches, since C3D Point Markers do not scale polyline widths. And fix the blocks that contain wipeouts, because C3D Point Markers do not honor the draw order stored in the block definition. And so on.