Manual

36
The diagram in (Fig 9) shows the sign convention for determining positive and negative measurements from
the absolute datum 0,0. Distances to the right of target #1 will be ‘+’ X, and distances to the left will be ‘-’ X.
Similarly, positions forward of target #1 will be ‘+’ Y, and those to the rear of target #1 will be ‘-’ Y.
Note: Although not essential, it is simpler if the datum target 0,0 is the left most target. Also, it is
simpler if the targets are in a straight line from left to right so that all the Y offset values
are zero.
Fig 9 Multiple target configuration