Setting auto flip to TRUE makes it possible to control distances measured with or against the projection vector with a single control value table entry. Changing the value of the delta shift makes it possible to trade off fine control of point movement for range of movement. A low delta shift favors range of movement over fine control. A high delta shift favors fine control over range of movement. The legal range for delta shift is zero through six.
Negative values are illegal.
The dual projection vector is used when it is necessary to measure distances from the scaled outline before any instructions were executed. Makes it possible to turn off instructions under some circumstances. When set to TRUE, no instructions will be executed. The default value of one assures that unless the value of loop is altered, these instructions will execute one time. Establishes the smallest possible value to which a distance will be rounded.