Frequent tipster Leonid Nemirovsky (check out his Better Than Nothing AutoLISP site) has sent us several small tips about new features he has discovered in AutoCAD 2010.

• "There is an addition to the Hatch command: now, if you have a gap in a boundary, AutoCAD points it out to you."
• "If you have a linetype with text embedded in it, there is no need to use AutoLISP to reverse the lettering if it is backward or upside down. Instead, AutoCAD has a new command: Reverse."
• "Purge has an option to purge entities with no value, like zero-length text and so on."
• "Now you can rotate a view along with its viewport. The trick is setting the new variable VPROTATEASSOC properly. If it is set to 0 (zero), the view in the viewport will not rotate when the viewport is rotated. If it set to 1, the view will rotate with the rotated viewport."

Notes from Cadalyst Tip Patrol: If you are trying to hatch a boundary and it isn't closed, AutoCAD 2010 will draw red circles at the endpoints of the opened lines showing where the gap is. To reverse a line (or polyline or spline), use the Reverse command, or use the Reverse option when editing a polyline. In order to purge zero-length objects, make sure that option is selected in the Purge Command dialog box.