Untitled

Quick Reference

Commands

LINETYPE

Loads, sets, and modifies linetypes.

System Variables

MEASUREINIT

Controls whether a drawing you start from scratch uses imperial or metric

default settings.

Simple Custom Linetypes

Each linetype is defined on two lines in a linetype definition file. The first

line contains the linetype name and an optional description. The second line

is the code that defines the actual linetype pattern.

The second line must begin with the letter A (alignment), followed by a list

of pattern descriptors that define pen-up lengths (spaces), pen-down lengths

(dashes), and dots. You can include comments in an LIN file by beginning

the line with a semicolon (;).

Linetype Definition Format

The format of the linetype definition is

*linetype_name,description

A,descriptor1,descriptor2, ...

For example, a linetype called DASHDOT is defined as

*DASHDOT,Dashdot __. __. __. __. __. __. __. __

A,.5,-.25,0,-.25

This indicates a repeating pattern starting with a dash 0.5 drawing units long,

a space 0.25 drawing units long, a dot, and another space 0.25 drawing units

long. This pattern continues for the length of the line, ending with a dash 0.5

drawing units long. The linetype would be displayed as shown below.

__. __. __. __. __. __. __. __

LIN files must be saved in ASCII format and use an .lin file extension. Additional

information about each field in a linetype definition follows.

20 | Chapter 2 Custom Linetypes