[Playerstage-users] Inconsistencies in GetDataTime()

[Fred L. <ff...@ab...>]

All,

The only way I found to make sure the data I'm getting from sensors is up to 
date is to use GetDataTime() and compare this to the time from the system.  
The reference (0) for GetDataTime() not being documented I looked in the 
driver for the particular sensor I was interested in at the time (LMS200, via 
a ranger interface) and found the reference to be the epoch.  I therefore 
wrote a function that gives me the number of seconds since the epoch using the 
system time and compare the two values.

I then tried in stage, only to find that the ranger simulator gives time from 
the start of stage, rather than the epoch...

Is this a bug, a lack of specification, or simply one has to cope with this 
anyway because data time might actually come from sensors and be independent 
of system time (or indeed act as time reference)?

Any input on that would be welcome.

Cheers,

Fred