Ordered Vs Synchronous

[mp3-250]

@matt

In SE ST you can make changes all day, and the model performance stays the same. In SW (and SE Ordered with direct-edit history) every change piles on another layer of data that gets saved and another layer of features that have to get rebuilt with the model every time.

Model rebuilds are a HUGE and unnecessary waste of time, and developers should be working to eliminate as much of this as possible. Making direct edits into history-based features is I think wasteful and shows somebody really just doesn’t “get it” when it comes to the advantages of real direct edit.

I have updated my 2D drawing performance thread with my latest experiment with SW.

I had a multibody welding with 1400+ bodies… around 17 seconds rebuild time and its 2D drawing was simply agonizing. I brought down rebuild time to around 10s and it got better, but still very sluggish.

Exported the 3D as parasolid, checked the geometry for errors and tried to make the 2D from scratch: blazing fast. Almost sections generated in real time with little to no lag.

Which brings us to the discussion above. When you hit a critical rebuild time or 500 to 1000 features tree the 3D slows down, the 2D is linked to the 3D performance and it degrades at unworkable levels. The problem is how to keep the dimensions of a 2D drawing with 5-6 sheets and 90+ sections once parameters are removed.

the whole 1400 body approach is “wrong”, that welding is in fact a complex assembly of repeated welding sub assemblies, welded pipes and it should be handled as a master assembly with simpler components imho, but performance wise it is to be seen how faster it could be with that approach and keeping the parameters intact.