MVG -- GOES Tape to Video Transfer

Transfers image data from an an AES GOES (VISSR) magnetic tape to the video display.

PARAMETERS

MVG is controlled by the following global parameters:

Name     Prompt                                  Count     Type
MTIC     Mag Tape Input Channel List             1-2       Int
VDOC     Video Output Channel List               1-2       Int
MTIW     Mag Tape Input Window                   0-4       Int
VDOW     Video Output Window                     0-4       Int
STARTFIL Start File on Tape                      1         Int

MTIC

Specifies a list of image channels that that reside on the input magnetic tape.

 EASI>MTIC=i,j                  | integers, 1-2

Only the channels specified in MTIC are used by MVG.
Ranges of channels can be specified with negative values. For example: {1,-4,10} is internally expanded to {1,2,3,4,10}.

VDOC

Specifies a list of output image channels to receive imagery for the video display.

 EASI>VDOC=i,j                  | integers, 1-2

Ranges of channels can be specified with negative values. For example: {1,-4,10} is internally expanded to {1,2,3,4,10}.

MTIW

Specifies a rectangular subset of an image on magnetic tape to be used for input to the MVG task.

 EASI>MTIW=Xoffset,Yoffset,Xsize,Ysize
 EASI>MTIW=                     | defaults to entire image

The offset + size must not exceed the image size.

VDOW

Specifies a rectangular subset of the image channel data to be received on the video display.

 EASI>VDOW=Xoffset,Yoffset,Xsize,Ysize
 EASI>VDOW=                     | defaults to entire image

The offset + size must not exceed the image size.

STARTFIL

Specifies the start file number on tape from which to start reading header and image data. If STARTFIL is greater than one, the program rewinds the tape and advances to the specified file. STARTFIL must be set to the file number required by MSH program to print tape header report.

 EASI>STARTFIL=1              | read first file on tape
 EASI>STARTFIL=n              | read nth file on tape

DETAILS

MVG transfers image data from the visual or IR bands on tape (MTIC) to any set of image planes on a video display (VDOC).

Any arbitrary rectangular window on tape (MTIW) can be transferred to any arbitrary rectangular window on the database (DBOW). Shrinking and/or zooming is automatically performed. By default, the whole tape image is transferred, filling the entire display.

Any file (image) on tape (STARTFIL) can be specified. MVG will rewind, then advance to the selected file before transferring.

 A TAPE MUST BE MOUNTED ON THE TAPE DRIVE BEFORE MVG CAN BE RUN.
 CLEANING THE TAPE HEADS IS RECOMMENDED TO MINIMIZE THE CHANCE OF
 TAPE READ ERRORS.

EXAMPLE

 EASI>MTIC=1,2
 EASI>VDOC=1,2
 EASI>MTIW=0,0,512,512
 EASI>VDOW=MTIW
 EASI>STARTFIL=2
 EASI>RUN MVG

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