Level 2 Help for GEOMA

INP=(ds1,ds2)  There are two datasets allowed, one required and one optional.
The first is the input dataset containing a picture to be transformed in
standard VICAR format (byte or halfword).  If this dataset is the only input
dataset, then the syntax INP=ds1 is allowed.
The second is an optional input parameter dataset containing control
parameters. This dataset must be an IBIS file containing tiepoint data.

OUT=B where B is a string specifying the name of the VICAR output file.
Default is "GEOMA".

SIZE=(1,1,NL,NS) is written in standard VICAR size field format. However it
does not have conventional meaning. The "starting line" and "starting sample"
parameters are meaningless and are ignored. The "number of lines" and "number
of samples" parameters specify the output picture size. 

NL=I where I is an integer. This keyword along with NS=I1, can be used to
specify the VICAR size field format and can replace using the SIZE
parameter. NL specifies the number of lines in the output picture.

NS=I1 where I1 is an integer. This keyword along with NL=I, can be used to
specify the VICAR size field format and can replace using the SIZE
parameter. NS specifies the number of samples in the output picture.

This parameter has two valid keyword values: BYTE and HALF.
 
BYTE specifies that the picture to be processed is in byte format
(one byte per sample).
 
HALF specifies that the picture is to be processed is in halfword format
(two bytes per sample).  The program also reads the format field of the
VICAR label and uses that as the default.  It is safest to default this
parameter.

NAH=N where N is an integer value specifing the number of areas horizontally;
which is also the number of columns of tiepoints less 1. NAH "must"
be specified on the command line or in a parameter file
unless an optional dataset containing the parameters NAH, NAV
and TIEPOINTs is specified.(2nd optional input dataset)   NAH must also
be >= 1.  

NAV=N where N is an integer value specifing the number of areas vertically;
which is also the number of rows of tiepoints less 1. NAV "must" 
be specified on the command line or in a parameter file
unless an optional dataset containing the parameters NAH, NAV, and TIEPOINTs
is specified(2nd optional input dataset). NAV must also be >= 1.

TIEPOINT=(newline(1),newsamp(1),oldline(1),oldsamp(1),newline(2),...). The
values of TIEPOINT specify the mapping of control points between output
and input pictures.  The
numbers which follow the keyword are in groups of four, one group of
four for each tiepoint. The numbers may be either integer or real type. The
total number of tiepoint numbers must be
			4*(NAH+1)*(NAV+1)
Within each group of four numbers describing a tiepoint, the first number
specifies the line coordinate of that tiepoint in the output (transformed)
picture, the second number specifies the sample coordinate of that tiepoint
in the output picture, the third number specifies the line coordinate of the
input picture and the fourth specifies the sample coordinate of the input
picture. The order in which the tiepoints are specified is left to right
within a horizontal row of tiepoints. The horizontal rows of tiepoints are
specified in top-to-bottom sequence. Tiepoint specification is further
clarified in the OPERATIONS and EXECUTION sections.  The TIEPOINT parameter
must be given on the command line or in a parameter file
unless an optional dataset containing the NAH, NAV, and
TIEPOINT parameters is specified.(2nd optional input dataset)

This parameter has one valid keyword value: NOINTERP.
 
It specifies that intensity interpolation is not to be performed
after the mapping of each pixel is used. Instead the gray value (DN) of
the nearest pixel is used. Intensity interpolation is explained in the
OPERATION section of the help file.  NOINTERP is not suggested
unless saving execution time is important and the resulting picture quality
is satisfactory.  Interpolation is the default.

NOTIFY=II This optional integer parameter will cause a message to be typed on
the operator console  as well as the user's terminal after completion of each
NOTIFY percent of output lines. NOTIFY should be in the range 1 to 100 for
messages or should be 101 for no messages.  The default is 101.