[pgpointcloud] RLE and SIGBITS heuristics

[Howard Butler]

> On Apr 15, 2015, at 10:08 AM, Paul Ramsey <pramsey at cleverelephant.ca> wrote:
> 
> Does LazPerf have configurability to tell it to bind dimensions together or is it strictly by dimension ATM?

It has the ability to bind dimensions together (this is an xyz unit, this is a las::point0, etc), but we don’t do that for the database compression stuff we’re doing in PDAL because it would mean assuming things about the data. We could probably get away with that for xyz, but not so much after that.

Howard