This bit indicates whether the PointData field specifies relative or absolute locations.
If set, each element in PointData specifies a location in the coordinate space that is relative to the
location specified by the previous element in the array. In the case of the first element in PointData,
a previous location at coordinates (0,0) is assumed.
If clear, PointData specifies absolute locations according to the
HemfPlusDraw.EmfPlusCompressed.isCompressed() flag.
Note If this flag is set, the
HemfPlusDraw.EmfPlusCompressed.isCompressed() flag (above) is undefined and MUST be ignored.