I was playing around with some lights and noticed that the Align Cross-hairs with Ceiling command works once again as it used to. That means that once again it only takes one pick to find an Intersection in a ceiling grid (or any hatch pattern)!
This ability disappeared with AutoCAD 2015. I had reported it as a bug back then, but the word snuck through that it was deliberately disabled by Autodesk because of performance issues associated with parsing through so many potential intersections in large hatch patterns as users selected objects or panned around.
I had installed AutoCAD 2016 SP1 late last year, but did not get around to reading the release notes (for shame) until I noticed this yesterday, and read them. It is reported as a bug fix, which is a bit of a stretch, but it's all good, as long as it was addressed.
Service Pack 1 also makes official Windows 10 compatibility. While earlier versions seem to work just fine on Win10, AutoCAD 2016 SP1 is the only version that Autodesk will support on Windows 10.
For AutoCAD 2015, install the AutoCAD 2015 SP2 Hatch Intersection Osnap Hotfix
For AutoCAD 2016, install the AutoCAD 2016 Service Pack 1 and make your sprinkler and light insertion a whole lot easier.
For AutoCAD 2017, it just works
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