The line type is the line seed such as an unbroken line, tear line. The following type is fixed at 1 to 4 from number previously.
| 1: | Unbroken line |
| 2: | Tear line |
| 3: | Dotted line |
| 4: | One point chain line |
Other 0 integers be the value that (N is decided with inside variable ' NBITS' a subordinate position N bit. Initial value be 16; 2.4.4 section Reference) Of the line seed is done Setting by using a bit pattern. For instance, 4bits on 4bits off 4bits on 4bits off' like the tear line is done Setting (hexadecimal constants) at the time of,' 0000F0F0' ITYPE =Z' with N=16. To every of 1 bit as for length inside variable ' BITLEN' decides. The picture example of a line type be 8.1.1 section Reference.