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This tutorial walks you through the steps
required to capture an image and save it as a GIF, JPEG or PostScript file
and later print it. 'xv' can be used to capture images from any software.
Suppose that you are in Pro/E and want to print
out the foll. image using 'xv'.
- Go to your Unix shell and type 'xv' at the prompts
followed by a carriage return. This will prop up the xv window. Click
on this window with the right mouse button to bring up the menu. At
this point, make sure that you get rid of or iconify all the current
windows (except the Pro/E and xv menu windows) so that your image in
Pro/E is not being interfered with by any other window.
- In the xv controls window, click on the Grab
button. This will pop-up the xv-grab window. Again iconify the xv controls
window but leave the xv grab window as it is.
- Click on Grab and then instantly click
inside your Pro/E window with the left mouse button. If you want
to be more safe, use the autograb facility or use a delay to grab the
window(instructions for these are visible in the xv grab window. If
you have done this step correctly, the window which you selected to
grab, will blink a couple of times.
- Now de-iconify all the xv windows. The captured
image will show up in a xv window. Unless you want a color print-out,
follow the steps 5-7 to lighten the background colors (to prevent ink
wastage) in printing a black & white copy. To get a color print-out
directly proceed to step 8. In the 'xv controls' window, click on the
24/8 bit button and select the 8-bit mode.
- Select the Windows button and choose the Color Editor
option. This will pop-up the xv Color Editor. In the colormap that shows
up, select the background color i.e. dark blue in this case. We are
going to change this to white (or any other lighter color).
- To change to white, set the Red, Green & Blue
values to 255 each. This will turn the dark blue background to white.
Similarly cahnge the other colors to contrast with the now white background.
(Black is rgb : 000)
- After you are done with changing the color settings,
select Apply, Set and Close
respectively. Your image will look somthing like this :
- In the xv controls menu, select Save.
This will bring up the xv save window. Go into Format and select PostScript.
Change the Colors option to B/W dithered or Greyscale
if you want a black/white print-out. For color printout, leave the option
to Full Color.
- Type the name of the file to save as. Give extension
'.ps' for PostScript, '.gif' for GIF file & '.jpg' for JPEG files.
- Select 'Quit' from the xv controls to exit xv.
- Use 'ghostview' to view your PostScript file. To
print *.gif or *.jpg files use the Print option in the
'xv controls' window.
- To print out the file use the 'lpr' command. Details
of using this command are pasted in ITLabs.
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