display - display the current image



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display - display the current image

  display[/qualifiers]

Up to 256 colour levels can be used. The actual number of levels used depends on the plot device defined. If the plot device does not support colours a gray scale image is displayed. By default the dispay uses a histogram to determine the color levels. Try the /lin or the /log qualifiers to get a different view. The cct/loop command can be used to go thru the various color tables that are available.

display/linear

Display image with linear scale for colour levels

display/log

Display image with logarithmic scale for colour levels

display/histo

Display image using image histogram to define colour levels. This is the default option for command DISPLAY

display/correct_exposure

Display the image corrected for the exposure map

display/exposure

Display the exposure map

display/div_map

Display the current image divided by the saved image

display/div_saved

Display the saved image divided by the current image

display/saved_image

Diplay the saved image.

display/sub_map

Display the current minus the saved images. If the result is a negative number, it will reset it to zero.

display/user_defined

Display image using user-defined colour levels. The user is prompted for n colour levels. The default value for n is the maximum number of colour levels the graphic device used can handle.

display/levels_from_file

Colour levels are read from a user-supplied file which can be created using command SAVE_LEVELS. The /file qualifier specifies the filename.

display/file=filename

A file containing colour levels for image display this qualifier can be used only in conjunction with qualifier /levels_from_file

display/table=name

This specifies the colour table to be used for the display. (not implemented yet.)

display/noframe

This suppresses the displaying of image frame. Only image and title are displayed.

display/overlay

The image is overlayed to the pre-displayed image. If an image has been previously displayed on one side of the screen (es. left), specifing this qualifier in combination with the es. '/RIGHT' qualifier allows the second image to appers displayed on the righthand on the screen (see '/LEFT' or '/RIGHT' for usage). If the qualifier is not specified the image is displaied on a new Pgplot page.

display/left

The qualifier left allows the image to appear on the lefthand side of the screen. Any subsequent interacting command with the Pgplot screen will act on the lefthand side. If an image already is displayed on the righthand side of the screen, a second image can be displayed on the lefthand side. This is done using the '/OVERLAY' qualifier, which allows a second plot to be displayed on the screen without erasing the first. So, if you use the 'DISPLAY/LEFT/OVERLAY' command, the second image will appear on the lefthand side beside the first.

display/right

The qualifier right allows the image to appear on the righthand side of the screen. Any subsequent interacting command with the Pgplot screen will act on the lefthand side. If an image already is displayed on the lefthand side of the screen, a second image can be displayed on the righthand side. This is done using the '/OVERLAY' qualifier, which allows a second plot to be displayed on the screen without erasing the first. So, if you use the 'DISPLAY/RIGHT/OVERLAY' command, the second image will appear on the righthand side beside the first.

display/v1=x

/v1,/v2,/v3,/v4 control where the image is displayed.

display/v1=x

/v1,/v2,/v3,/v4 control where the image is displayed.

display/v2=x

/v1,/v2,/v3,/v4 control where the image is displayed.

display/v3=x

/v1,/v2,/v3,/v4 control where the image is displayed.

display/v4=x

/v1,/v2,/v3,/v4 control where the image is displayed.

display/scale=x

Controls the scale applied to the labels around the image.

display/spectrogram

Display images which contain spectra obtained at different time and formatted as an image array. Not fully implemented yet.

display/refresh

This qualifier is disable

Examples:

disp               ! display an image with a histogram scaling
 
disp/log           ! display an image with log scaling
 
disp/exp           ! display the exposure map
 
disp/lin           ! display with a linear scaling
 
disp/left          ! display an image on the left
disp/right/overlay ! display an image on the right, and keep the pervious
                   ! image
 
disp/v1=0.317/v2=0.617/v3=0.4/v4=0.7 ! display into a specific area of the
                                     ! the screen



next up previous contents
Next: cey - change Up: Commands Previous: detect - source



Lorella Angelini
Thu 12 Oct 16:28:11 1995