Content-type: text/html Manpage of implot

implot

Section: User Commands (1)
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NAME

implot - Multi-panel contour or grey scale plot of a Miriad Image.  

PERSON RESPONSIBLE

mchw  

CATEGORIES

image analysis, plotting  

DESCRIPTION

IMPLOT makes multi-panel plots of a Miriad Image. Either contours or grey-scale can be plotted. The plots are annotated with map-header variables on the right side of the page. In cursor mode user can measure positions and draw a region of interest with the cursor for each plane. The region of interest is written into the log file, and can used to deconvolve the image or define a region for a mosaic pointing.  

PARAMETERS

in
Input image name. No default.
device
Plot device/type (e.g. /xs, pgplot.ps/ps for postscript. See the users guide for more details. No default.
region
Region of image to be used. E.g.
  % implot region=relpix,box(-4,-4,5,5)(1,2)
plots the center 10 x 10 pixels of image planes 1 and 2. The default is the whole Image. The region within the bounding box is plotted. The region specified is used for the mosaic pattern (keyword cell). Pixel blanking is not used.
units
The units for the plot axes, labels and contour levels.
 p means pixels with respect to the center pixel (default)
 s means arcseconds with respect to the center pixel
 a means absolute coordinates (RA in hours, DEC in degrees)
note: RA increases to the left of the map; pixels to the right.
conflag
The contour flag is made up of letters denoting contour options:
 p means percent of max (The default)
 a means absolute steps
 i means conargs is list of absolute contours
 ip means conargs is list of percentage contours
 n means include negative contours
 g means gray scale (may be added to contours)
 q means gray scale is scaled to maximum for each subpanel.
 l means logarithmic contours with factor given by conargs.  
The default is conflag=p.
conargs
Arguments for conflag; usually one number but may be multiple for the i option. The default is 10 percent contors or 10 logarithmic levels (conargs=1.58).
range
Grey scale range (minimum,maximum). Defaults to (0,region_max), where 0 is white and the maximum in the selected region is darkest.
nxy
Number of plots in the x and y directions. The default is 1,1.
beamquad
Quadrant placement (1-4) for the Clean beam picture in the first plot; 0 means no beam. The default is 0.
lwidth
Plotting line width, the default is 1.
log
The output log file. The default=log.
title
title=none omits the annotation. The default is full annotation.
mode
mode=cursor prompts for options after each plot. The options apply to the current plot. Type the first character ( and <cr> ) to select an option. If the cursor handling is device dependent the first character and <cr> may need to be typed several times. Options:
  Help - list options.
  Box -  use the cursor to define a region of interest.
  Add [Left Mouse] - Add point with cursor.
  Delete [Middle Mouse] - Delete last point.  
  Comment - enter a comment into the logfile.
  Position - print cursor position.
  Quit - stop processing and exit from task.
  Exit [Right Mouse] - End options, get next plot.
The region of interest is written into the log file.
cell
Draw a hexagonal mosaic grid, and write out the sampled points in the formats for the UVGEN task and for the telescope named in the image header (default HATCREEK). cell specifies the cell size (RA,DEC) in arcsec. Default=0 means no grid. cell(2) defaults to 0.866*cell(1)


 

Index

NAME
PERSON RESPONSIBLE
CATEGORIES
DESCRIPTION
PARAMETERS

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Time: 18:35:38 GMT, July 05, 2011