Request for new primitives

[Manfred Schaefer]

"Where this fraction is less than an entire circle, the primitive starts at {+x,0} and progresses in a conterclockwise direction when viewed from above {-y}."

https://wiki.ldraw.org/wiki/Primitives_R...primitives

Thanks for your answer

From the link in your reply:
[...] Where the naming convention includes a prefix of the form n-f, this indicates the fraction (n/f) of the circle drawn by the primitive. Where this fraction is less than a full circle, the primitive starts at {+x,0} and proceeds in an anti-clockwise direction when viewed from above {-y}. [...]

This merely states that this prefix exists, but not that other prefixes are prohibited.

There is an error in the following section, or perhaps I am misunderstanding it:

[...] For example, use 3-16XXXX.dat rather than combining 1-8XXXX.dat with 1-16XXXX.dat rotated by 22.5 degrees.

3/16 corresponds to 67.5′
1/8 corresponds to 45°
1/16 corresponds to 22.5°
From this, I conclude that if I want to combine 3/16 with 1/8 and 1/16, I would have to rotate the 1/16 by 45°. Or if I were to combine 1/16 with 1/8, I would have to rotate the 1/8 by 22.5°. 

Regards

Manfred