Javadoc
Sets the line pattern scale factor to the specified value.
This is used in conjunction with the patternMask when the
linePattern attribute is set to PATTERN_USER_DEFINED. The
pattern is multiplied by the scale factor such that each bit in
the pattern mask corresponds to that many consecutive pixels.
For example, a scale factor of 3 applied to a pattern mask of
0x001f would produce a repeating pattern of 15 pixels on
followed by 33 pixels off. The valid range for this attribute
is [1,15]. Values outside this range are clamped.