[Therion] Surface Contours

[kevin dixon]

I have randomly distributed surface points from a Post Processed Kinematic
GPS survey (accuracy ~10cm) and wish to calculate surface contours. The
reason for doing this is to have detailed data for all the shakeholes.
Would like to import the contours into Survex/Therion so these can be seen
above the cave.

Has anyone else done this and how ?

My current thinking is to use the QGIS Contour tool to generate the
contours and then import these into Survex/Therion as elevation strings
using some intermediate data format yet to be decided.

Thanks,

Kevin
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