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Displaying an image in a window

 

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This command can be used to add an image to be drawn on the background of a window. Switches -x0, -y0, -w and -h can be used to specify a portion to be used instead of the whole picture.

Example: In this example an image file is loaded and a portion of it is visualized in a window.

...
# Load the image file into namespace
NDA> loadimg map.gif
# Create a graphic structure and assign a 300 by 300 pixel portion
# of the image starting at (100,100)
NDA> mkgrp win
NDA> bgimp win -img map -x0 100 -y0 100 -w 300 -h 300
NDA> show win
...
# Remove the background image
NDA> bgimg win -rm
NDA> draw /win

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Erkki Hakkinen
Thu Sep 24 11:51:34 EET DST 1998