7. 1. 2015 v 19:41, Bruce <bruce@tomo.co.nz>:

>>So what it is looking like, if the contributory maps are all derived from scraps (or maps in turn derived from scraps), then the altitude range is correct.

But if there is a map that is centerline derived (ie has no scraps) then the altitude minima is set to zero.

>Only one question: do you have defined entrance?

Yes, the survey network has a number of entrances defined.  One of which is present in the exported map I was experimenting with.

Bruce