Thanks Stacho, "> 1. Why does my centreline disappear beyond the extent of the scrap plotted?
Whether I process just SurveyN.th or TheWholeCaveWithManySurveysINDEX.th I only get my first ever little scrap. I'd like to see it in context with my centreline with passage shading in the same output document. Loch seems to modify the passage with scraps while retaining all the passage with only centreline and LRUD data.
It is not exactly like this. I think loch displays both - the centerline and 3D scraps I think. It is only in the TODO list, doing it like you suggested." Yes you are right, it does display both, I noticed this where my sketch deviated significantly from the passage. I got two passages viewed with Loch. Its OK, good for detecting errors. Bruce