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.5,.5 for the first instance of the pattern, so its origin is at this point. The third
line of the pattern could be the following:
or
90, .5,0, 0,1, .5,-.5
270, .5,1, 0,1, -.5,.5
The dashed pattern starts at the origin points and continues in the vector
direction given by the angle specification. Therefore, two dashed-line families
that are opposed 180 degrees are not alike. Two solid-line families are alike.
The following pattern creates six-pointed stars.
This example can help you refine your skills at pattern definition. (Hint: 0.866
is the sine of 60 degrees.)
The following is the AutoCAD LT definition of this pattern:
*STARS,Star of David
0, 0,0, 0,.866, .5,-.5
60, 0,0, 0,.866, .5,-.5
120, .25,.433, 0,.866, .5,-.5
To create a hatch pattern with multiple lines
1 Open the acadlt.pat or acadltiso.pat file in a text editor that saves in ASCII
format (for example, Notepad).
2 Create a header line that includes an asterisk and a pattern name. The
name of the hatch pattern is limited to 31 characters.
3 (Optional) To include a description in the header line, follow the pattern
name with a comma and description text.
4 Create a descriptor line that includes
■ An angle at which the line is drawn
■ An X,Y origin point
■ A delta-x of any value if you want to offset alternating lines in the line
family
Hatch Patterns with Multiple Lines | 35