Edger2 only creates condlines if the adjacent surfaces vertices match perfectly...

[nilsschmidt1337]

Philo wrote:

Even a minute discrepancy prevent creation, and this regardless of the value of "precision" field.
Workaround: run unificator first (this may fail if there are slightly mismatched primitives)

More info:
So... maybe it's not a general problem, but here is a buggy case. LDPE Edger2 with default settings generates unmatched lines everywhere (****). With increased precision value (from 0.001 to 1), no unmatched line is created between quads (so precision parameter does have an influence)... but no condline either!

bugedger.zip

Testcase:

0 BFC CERTIFY CCW

3 16 -6.2071 -3.5105 -1.2425 .1 0 0 -1.7789 -5.5887 6.1245
3 16 0 0 0 -6.2071 -3.5105 -1.2425 -5.66043 5.30667 -5.38402

[nilsschmidt1337]

Closed with commit 07820f6.