AIPS HELP file for TVAGUESS in 31DEC21
As of Sun May 16 12:16:07 2021
TVAGUESS: Verb to re-plot slice model guess directly on TV
INNAME Image name (name)
INCLASS Image name (class)
INSEQ 0.0 9999.0 Image name (seq. #)
INDISK 0.0 9.0 Disk drive #
INVERS 0.0 46655.0 Version # of SL file. 0=>last
PIXRANGE Min,Max of image intensity
Max <= Min => entire range
BDROP 0.0 9999.0 Drop slice pts from beginning
EDROP 0.0 9999.0 Drop slice pts from end
GRCHAN 0.0 7.0 Graphics channel to use
GMAX Initial guess of max values.
GPOS Initial guess of positions.
GWIDTH Initial guess of halfwidths.
Use: Plot the curve described by the initial guess of the Gaussian
components on top of any existing plot on a TV graphics plane.
It plots the model slice without clearing the graphics plane and
without labeling. TVGUESS clears the graphics plane and labels
the plot as well as plotting the model described in the adverbs.
Usage hint: Start with a TVINIT to clear the TV memory. Then
do a TVSLICE to one graphics plane, TVGUESS or TVAGUESS to a
different graphics plane. This allows the two to be seen but in
different colors to aid recognition. When the plots overlap
a complementary color is used. The guess may be replaced
without a new TVSLICE by either a new TVGUESS or a GRCLEAR;
TVAGUESS with GRCHAN set for the guess graphics plane. GROFF
will make one part of the display invisible without deleting it.
INNAME......Image name (name). Standard defaults.
INCLASS.....Image name (class). Standard defaults.
INSEQ.......Image name (seq. #). 0 => highest.
INDISK......Disk unit #. 0 => any.
INVERS......Version # of SL file. 0 => highest version #
PIXRANGE....Min,Max of Image intensity. 0 => entire range of
the slice (not the image).
BDROP.......No of slice pts to omit from beginning of plot.
EDROP.......No of slice points to omit from end of plot.
Note that these are points in the slice not pixels in
the original image. Use INEXT='SL'; EXTLIST to see how
many points are in the slice.
GRCHAN......TV graphics plane to use. <= 0 -> 1
NGAUSS......No of gaussian components.
GMAX........Initial guess of maximum amplitudes.
GPOS........Initial guess of positions of the components in
GPOS(1,i). GPOS(2,i) not used.
GWIDTH......Initial guess of widths at 1/2 max amplitude in
GWIDTH(1,i). GWIDTH(2,i) and GWIDTH(3,i) are not used.
Note that the units of GMAX, GPOS, and GWIDTH are those
in the plot (e.g. mJy, arc sec or Jy, degrees or ??).