Autocad - How to improve performance in drawings containing hatches

Issue

You want to know how to improve performance in large, complex drawings containing hatches.

Solution

Here are a couple of the most common performance issues relating to hatches.

Performance Issues when Previewing

AutoCAD 2011 (and AutoCAD-based vertical products) default to showing a preview of hatches as you move the crosshairs over an enclosed area:

The automatic preview of hatches can cause performance issues in large, complex drawings.  You can disable this feature by setting the HPQUICKPREVIEW system variable to OFF.

Polilinee Autocad

Per trasformare delle linee in polilinee occorre usare il comando EDITPL. Per evitare di confermare la trasformazione della prima entità selezionata in polilinea basta modificare la variabile PEDITACCEPT al valore 1