You can set the line end and join styles for objects that have lineweight assigned, either as an object property or as a plot style override.
The program includes the following line end style options:
The default setting for Line End Style is Use Object End Style, which is rounded. Assign a line end style in a plot style to override the object's default line end style at plot time.
The program includes the following line join style options:
The default setting for Line Join Style is Use Object Join Style, which is rounded. Assign a line join style in a plot style to override the object's default line join style at plot time.