This misinformation should be adapted urgently:
https://www.ldraw.org/library/primref/
Circular cylinder:
n-fcyli2.dat
"This suite of primitives are used to generate cylinders or part cylinders. These are provided in two forms - with conditional lines (n-fcyli) or without conditional lines (n-fcyli2). In most circumstances the "cyli" version should be used. The "cyli2" versions are for special cases, such as the rounded corners of stickers."
Magnus pointed out to me that cylinders with conditioning lines are definitely necessary for stickers with rounded inside / outside corners.
Nice trap .... for every clueless who obeys the written rules.
https://www.ldraw.org/library/primref/
Circular cylinder:
n-fcyli2.dat
"This suite of primitives are used to generate cylinders or part cylinders. These are provided in two forms - with conditional lines (n-fcyli) or without conditional lines (n-fcyli2). In most circumstances the "cyli" version should be used. The "cyli2" versions are for special cases, such as the rounded corners of stickers."
Magnus pointed out to me that cylinders with conditioning lines are definitely necessary for stickers with rounded inside / outside corners.
Nice trap .... for every clueless who obeys the written rules.