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From: gavin@krypton.asd.sgi.com (Gavin A. Bell)
Newsgroups: comp.sys.sgi
Subject: Re: login icons: summary
Message-ID: <1990Oct11.180838.24211@odin.corp.sgi.com>
Date: 11 Oct 90 18:08:38 GMT
References: <90Oct11.102621edt.57674@ugw.utcs.utoronto.ca>
Sender: news@odin.corp.sgi.com (Net News)
Organization: Silicon Graphics, Inc.  Mountain View, CA
Lines: 43

I got tired of trying to figure out what arguments to give to izoom to
get the images under 100 x 100 pixels, so I wrote this little shell
script which allows you to specify the size of the new image in
pixels.

--- Save the following stuff in a file called 'zoom',
--- then chmod +x zoom
#!/bin/sh

# Script to take an image and zoom it to a specific size
# Arguments:
#   zoom img newimg xsize ysize

if test $# -ne 4 ; then
	echo "Usage: " $0 " image new_image xsize ysize"
	exit 1
fi

img=$1
imgnew=$2
newx=$3
newy=$4

xsize=`istat $img | grep -v xsize | cut -c1-5`
ysize=`istat $img | grep -v xsize | cut -c7-12`

xscale=`bc -l << EOF
$newx/$xsize
EOF
`
yscale=`bc -l << EOF
$newy/$ysize
EOF
`

echo "Executing command:"
echo "\t" izoom $img $imgnew $xscale $yscale
izoom $img $imgnew $xscale $yscale
echo "Done."

------------END OF LINES TO BE SAVED
--
--gavin     (gavin@sgi.com,  (415)335-1024)