Not all hatch patterns use origin points of 0,0. Complex hatch patterns can have
an origin that passes through offsets from the origin and can have multiple members
in the line family. In composing more complex patterns, you need to carefully specify
the starting point, offsets, and dash pattern of each line family to form the hatch
pattern correctly.

The hatch pattern AR-B816 shown on the Hatch contextual ribbon tab or in the Hatch
and Gradient dialog box looks like this:

and is defined as follows with multiple lines describing the pattern:

*AR-B816, 8x16 Block elevation stretcher bond
0, 0,0, 0,8 
90, 0,0, 8,8, 8,-8

The following figure illustrates a squared-off, inverted-U pattern (one line up, one
over, and one down). The pattern repeats every one unit, and each unit is 0.5 high
and wide.

This pattern would be defined as follows:

*IUS, Inverted U's
90, 0,0, 0,1, .5,-.5 
0, 0,.5, 0,1, .5,-.5 
270, .5,.5, 0,1, .5,-.5

The first line (the up bar) is a simple dashed line with 0,0 origin. The second line
(the top bar) should begin at the end of the up bar, so its origin is 0,.5. The third
line (the down bar) must start at the end of the top bar, which is at .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:

90, .5,0, 0,1, .5,-.5

or

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 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