The default Diagrams.lin file with DWG patterns definitions is placed in the
%PDMSEXE% directory. This is a text file, so it can be edited using a text editor like Notepad. This file can be exchanged with another line pattern file directly in the operating system. It is possible to have project-specific patterns. To achieve this the modified
Diagrams.lin file should be placed in the Diagrams sub-directory in the location pointed out by
%<PROJ_ID>DFLTS%. The systems is searching for the patterns file in the following order;
The Second line starts with A,. It indicates the beginning of the linetype pattern: