1 REPROJECT
        REPROJECT

    This task resamples an input image  to  a   different   projection   and
    coordinate  system.   Two interpolation methods are available.  The SLOW
    one takes properly the blanking value into account, the FAST one ignores
    it.   Although  it  is  usually much faster than the SLOW one, it may be
    slower in a few cases (large output map and small input map with  change
    of  coordinate  system  essentially).   The  task  works  on data cubes,
    processing them plane by plane.

    CAUTION:  This task uses an  interpolation  method,  hence  the   output
    image increment should be SMALLER than the input image increment.

    See also the GRID_PROJECT task if you start from CLASS data.
2 Y_NAME$
        TASK\FILE "Input file" Y_NAME$

    The name of the image you want to reproject.
2 X_NAME$
        TASK\FILE "Output file" X_NAME$

    The name of the output reprojected image.
2 PROJECTION$
        TASK\CHARACTER "Projection type" PROJECTION$

    The name of the projection type.  The  supported  projection  types  are
    GNOMONIC, ORTHOGRAPHIC, AZIMUTHAL, STEREOGRAPHIC, AITOFF, RADIO and NONE
    (no projection).
2 SYSTEM$
        TASK\CHARACTER "Coordinate system type" SYSTEM$

    The name of the coordinate system.  The supported coordinate systems are
    EQUATORIAL, GALACTIC, and UNCHANGED.  1950.0 is the only supported epoch
    for equatorial coordinates.  Ask S.Guilloteau if you need another epoch.
2 CENTER_1$
        TASK\CHARACTER "Coordinates of projection center" CENTER_1$

    The First Coordinate of the new projection center (in the new coordinate
    system  of course).  Accepts any formats from sexagesimal (HH:MM:SS.SS )
    to decimal.  Expects to read HOURS if the system is EQUATORIAL,  DEGREES
    if not.
2 CENTER_2$
        TASK\CHARACTER "Coordinates of projection center" CENTER_2$

    The  Second  Coordinate  of  the  new  projection  center  (in  the  new
    coordinate  system  of  course).   Accepts  any formats from sexagesimal
    (HH:MM:SS.SS ) to decimal.  Expects the value to be in DEGREES.
2 ANGLE$
        TASK\REAL "Position angle of projection" ANGLE$

    The position angle of the projection (in degrees).
2 DIMENSIONS$
        TASK\REAL "Dimensions of output image" DIMENSIONS$[2]

    The size in pixels of the reprojected image.
2 AXIS_1$
        TASK\REAL "First axis conversion formula" AXIS_1$[3]

    The conversion formula for the first axis of the reprojected image:
          -  the reference pixel.
          -  the value of the axis at the reference pixel.
          -  the distance between two pixels on the axis.
2 AXIS_2$
        TASK\REAL "Second axis conversion formula" AXIS_2$[3]

    The conversion formula for the second axis of the reprojected image:
          -  the reference pixel.
          -  the value of the axis at the reference pixel.
          -  the distance between two pixels on the axis.
2 METHOD$
        TASK\CHARACTER "Interpolation method" METHOD$

    The interpolation method.  Use SLOW if the input image contains  blanked
    pixels, FAST otherwise.
2 CHANGE$
        TASK\LOGICAL "Change blanking value" CHANGE$

    Answer YES  if   you   want   to   modify   the   blanking   value,   NO
    otherwise.
2 BLANKING$
        TASK\REAL "New blanking value and tolerance" BLANKING$[2]

    The new values of the blanking and tolerance on blanking.
1 END