[Therion] plan cross-section

[marco corvi]

On Mon, 2010-07-19 at 17:20 +0200, Martin Sluka wrote:
> what about manual calibration of scrap using two stations and their x  
> and y difference or x, y coordinates?
> 
> Martin
> 
indeed there are station points in the scraps.
therion has their coords, 
so why input the X-Y numbers by hand ?

spare thought:
btw, something similar could apply to elevation scraps
for horizontal caves.
therion could get the plane(s) of projection from the
section line ... maybe this is kind of messy: associating
a section line to a scrap to define its projection type,
the vector normal to the line in the plane of the map ...
not well defined for extended elevations, in general.

marco