Another v useful expression is: opdigits(“path”)
it's commonly used like this opdigits(“.”) ..ie, on it's own object. This expression gives you the ending number of any object.
ie,
geo1
geo2
geo3
if you put opdigits(“.”) in the tx channel, then each object would be at x=. This is a pretty useful expression when used with $OS.
BTW, the syntax is different as $OS is a shorthand for opname(“.”) and existed before opname(“.”) was around. It's in fact a throwback from Prisms which was the pre-cursor to the Houdini we know and love:
http://clustr.com/images/news/854/sfx_05.jpg [clustr.com]
Sage was the stand-alone node based add-on to Prisms which looks v much like Houdini does now (surprisingly so)!
http://clustr.com/images/news/854/sfx_04.jpg [clustr.com]
..I digress.
