System Defined Line Styles

The system line widths of THIN, MEDIUM, and THICK are now configurable in ADMIN using the new line-style hierarchy in the system database.

By default, they have been changed to standard values from the ISO 128 standard, which specifies line widths of: 0.18, 0.25, 0.35, 0.5, 0.7, 1.0, 1.4, & 2.0 mm. The values chosen for THIN, MEDIUM and THICK are: 0.25, 0.35 and 0.7 mm, rather than the former 0.22, 0.5, & 0.7 mm.

The Minimum pen line width, formerly set by a gadget on the Plotting Options form, no longer appears. This is a parameter of the Plot command and is no longer required as the user has much better control of the widths. A very low value will be treated as the minimum width allowed for the format specified – PDF, DWG, These may vary or have some special meaning.

Note:
The line width resolution of PDF output is currently controlled by a reference printer, which is either the user’s default printer (if there is one) or the user’s screen resolution. If the resolution of the said printer is 600dpi, it will not be sufficient to show the difference in width of the example lines on A0. One way to prevent this problem from occurring is to set a default printer with a higher resolution, say 1200 dpi.