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[GREG2\]CONVERT A0 0 "[Angle] [/TYPE Ptype] [/UNIT Unit] [/SYSTEM
EQU|GAL [Epoch]] [/VAR Var_X Var_Y]
This command assumes that the X,Y buffers (or the 1-D variables Var_X
and Var_Y if option /VAR is used) contain data in the specified projec-
tion (or in absolute spherical coordinates if Ptype is NONE) in the giv-
en angular unit (Degree Minute Seconds or the default Radian), in the
specified System (GALACTIC or EQUATORIAL with default epoch 2000.0, de-
fault is current system) and converts them to the current system, as de-
fined by SET SYSTEM, and projection, as defined by command PROJECTION.
Note that the projected coordinates are always natural units (i.e. the
equivalent of Radians after projection). There is no provision for "hid-
den" parts which are treated exactly as visible ones.
A0 D0 are Hours and Degrees if the input system is EQUATORIAL, Degrees
CAUTION: when using variables, the Var_X and Var_Y arrays MUST BE RE-
AL*8, and WRITEABLE (see HELP DEFINE).