2D Offset Input Format

When the user is prompted to key in an offset, three main input formats are accepted, namely:

1. Delta values along the coordinate axes.

   Format: du,dv (for example, 100,50)

2. Length and angle.

   Format: length, angle (for example, 100,45D)

   Angles must be followed by D (degrees) or R (radians).

3. Length and verbal direction.

   Format: length, verbal direction (for example, 100,N)

   Verbal directions can be North, South, West, East, Right, Left, Up or Down.

Only the first letter is relevant. Surrounding and intervening spaces are accepted. The comma can be replaced by space(s). The offset given as format (2) may be projected on the u- or v-axis, by appending 'U' or 'V' as a third argument respectively.

Format: length, angle U (for example, 100,45D U) length, angle V (for example, 100,45D V)

The second and third arguments must be separated by at least one space.

The third argument is of course useful only in format (2) but will, nevertheless, be accepted in any of the three formats.