NOTE: There is a known issue with the most recent entries having screwed-up information and links. Some databases are out of sync and we haven't been able to fix it yet.
This CORRECTED version contains the same descriptions of the available line types by the number, and grouped by function. It also includes the 33 previously undefined line types and corrections to many others. Also explained are some of the newly discovered ways that the DOOM engine handles implimentation of these line types. Check it out.