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46 lines
705 B
46 lines
705 B
#!/bin/csh
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@ chunksize=8
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@ x=0
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@ y=0
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@ h=120
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@ pal=4
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@ wid=999
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@ maxwid=5
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@ chunkheight = $chunksize * $h
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if ($#argv < 3) then
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echo Usage: $0 file prefix startrow
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exit 1
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endif
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@ r=$3
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@ chunks = 0
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echo -n determining image height...
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set imheight="`identify comictitles.gif |& cut -d' ' -f2 | cut -dx -f2`"
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echo $imheight
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while ($y < $imheight)
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convert -crop ${wid}x${chunkheight}+0+${y} +compress $1 chunk${chunks}.gif
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echo chunk $chunks
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@ y += $chunkheight
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@ chunks++
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end
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@ chunkno = 0
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while ($chunkno < $chunks)
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@ y = 0
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while ($y < $chunkheight)
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convert +dither -crop ${wid}x${h}+0+${y} -colors $pal chunk${chunkno}.gif $2${r}.gif
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echo $r
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@ y += $h
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@ r++
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end
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@ chunkno++
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end
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