2013

Following the two displacement specification bytes, the shape returns to
Normal Vector mode.
You can use code 9 to draw a sequence of nonstandard vectors. Code 9 specifies
any number of X-Y displacement pairs. The code sequence is terminated by
a (0,0) pair. The following example draws three nonstandard vectors and
returns to Normal Vector mode.
9,(3,1),(3,2),(2,-3),(0,0)
You must terminate the sequence of X-Y displacement pairs with a (0,0) pair
in order for AutoCAD to recognize any Normal Vectors or special codes that
follow.
Code 00A: Octant Arc
Special code 00A (or 10) uses the next two specification bytes to define an arc.
This is called an octant arc because it spans one or more 45-degree octants,
starting and ending on an octant boundary. Octants are numbered
counterclockwise from the 3 o'clock position, as shown in the following
illustration.
The arc specification is
10,radius,(-)0SC
The radius can be any value from 1 through 255. The second specification
byte indicates the direction of the arc (counterclockwise if positive, and
clockwise if negative), its starting octant (s, a value from 0 through 7), and
the number of octants it spans (c, a value from 0 through 7, in which 0 equals
eight octants, or a full circle). You can use parentheses to improve readability.
For example, consider the following fragment of a shape definition:
...012,10,(1,-032),01E,...
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