Each pattern line is considered to be the first member of a line family, created by applying the delta offsets in both directions to generate an infinite family of parallel lines.Blank lines and text to the right of a semicolon are ignored.However, you must begin a pattern definition with a letter or number, not a special character. You can include letters, numbers, and the special characters underline (_), hyphen (-), and dollar sign ($). Each line in a pattern definition can contain up to 80 characters.Hatch pattern definitions follow these rules: This simple pattern definition specifies a line drawn at an angle of 45 degrees, the first line of the family of hatch lines is to pass through the drawing origin (0,0), and that the spacing between hatch lines of the family is to be 0.125 drawing units. The pattern name on the first line, *ANSI31, is followed by a description: ANSI Iron, Brick, Stone masonry. And is defined as follows: *ANSI31, ANSI Iron, Brick, Stone masonry