Converts a negative dash pattern phase into a positive phase without any visual change.
The dash pattern phase specifies the distance into the dash pattern to start the dash. Negative values may not be supported by the RIP.

Applying this Action to the dashed pattern in the above example (phase = - 2 cm) will result in a new phase of 4 cm. This positive value is calculated by adding the total length of the dash pattern (6 cm) to the negative phase (-2 cm).