(2021-08-18, 23:57)Travis Cobbs Wrote: Since I don't really build LDraw models (with or without instructions), I don't really feel qualified to debate over how these should look. Having said that, my first thoughts would be:
Not sure about naming convention.
Category: Helper
Edges on 3D helpers.
No Edges on 2D helpers.
I feel that the community at large should give their thoughts, and once some kind of consensus has been reached, the standards board can vote on it.
This is very good message SteerCo agrees with helpers addition. I agree with Travis about Category and edges. Plus I'd add a rule about BFC for 2D helpers so no "one side visible" helpers are accepted.
I'm not sure about naming convention as I'm not on any board and I don't know all details behind this. From my POV, the most important two points about naming are: make it clear and make it expandable in future. For this reason I suggest "Helper Arrow " as a prefix for arrows I suggested in the original thread. For example: "Helper Arrow Straight 3L". In future, it may be that we add another type of helper than arrows and with this scheme no conflict appears.
For the same reason, I'd add KEYWORDS: Helper, Arrow for these arrows.
On the other side, for filenames (part "codes"), I think a simple scheme like "h" prefix and a number is enough. For example h0001.dat - the number does not need to code anything, it's same as for any other part categories, the number is absolutely independent on anything else like a part category or subcategory. Maybe in future we can add helpers with a pattern, like h0001bp01.dat , but since then, I'd simply number helpers as they come: h0001, h002...