[pdal] LAS Class Flags (Withheld, Synthetic, Ignored) in PDAL

[Howard Butler]

All,

We are currently discussing some kind of refactor or enhancement to the handling of these kind of mask flags in PDAL, but we are wondering how much impact these changes would actually have. For the most part, these things have been "just data" and PDAL users were on their own to keep track of masks and preserve them and so on. That might mean that people have lots of custom bits to manage them, but we don't know. 

Are you managing LAS-style Classification flags yourself with PDAL? If so, can you tell us what you're doing now and how you might like to see more regimented facility in PDAL (if at all) for dealing with such things? Some feedback would help guide us on how extensive of a refactor we could feel comfortable taking on the topic.

Howard