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The 2d attributes have the following meaning
lines2d
scrap_ID - ID of the scrap containing the line
type - centreline, wall, pit etc.
subtype - bedrock, blocks, pebbles etc.
points2d
- scrap_id - id of scrap containing the point
- type - station, entrance, sand,stalagmite etc.
- typefc - NULL, 7, X not worked out what these are yet
- typefcr - Angle of symbol orientation (rotation)
- subtype - all seem to be NULL not worked out what these are yet
- stname - station name
- stsurvey - survey name
outline2d
- ID
- name - scrap name
- title - scrap title
- map_ID - id of map containing the scrap
- map_level - presumably level of map relative to other maps
- map_title - self explanatory
- survey - all seem to be NULL maybe because I'm not using a survey container
- z - this seems to be an altitude probably for colouring scraps by altitude