18.34.10      MAP_CENTER

MAP_CENTER Character String

Specify the Map center and orientation in the same way as the arguments of UV_MAP.

   LET MAP_CENTER "ANGLE AngleValue"   ! Rotation angle
   LET MAP_CENTER "Ax Ay Unit"         ! Center position

where Unit is any of DEGREE, MINUTE, SECOND, RADIAN or ABSOLUTE. These two possibilities can be combined in any order:

   LET MAP_CENTER "ANGLE AngleValue Ax Ay Unit"
   LET MAP_CENTER "Ax Ay Unit ANGLE AngleValue"

In the latter case, the keyword ANGLE can be omitted.

For Unit ABSOLUTE, Ax Ay should be the RA and Dec in standard sexagesimal notation. As usual in SIC, keywords can be abbreviated provided they are not ambiguous.