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161
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1 #!/bin/csh -f
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2 # Copies gnuslogo.ps to gnuslogo.tmp and fixes the image
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3 # by the scale specified in $1.tex
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4
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5 echo Scaling-down gnuslogo.ps to gnuslogo.$1
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6 set bb = `grep "^%%BoundingBox:" gnuslogo.ps`
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7 if ($bb[2] != 0 || $bb[3] != 0) then
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8 echo Please make gnuslogo.ps have zero-based coordinates
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9 exit 1
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10 endif
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11 set logowidth = $bb[4]
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12 set logoheight = $bb[5]
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13 set logoscale = \
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14 `grep "\\def\\logoscale{" $1.tex |sed -e "s/\\def\\logoscale{\([^}]*\)}/\1/"`
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15 # check if a program is present
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16 alias executable '(\!* </dev/null >&/dev/null)'
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17 executable calc 0
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18 if ($status != 1) then # calc is demented and returns 2 on success
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19 # -p is "precision"
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20 set newwidth = `calc -p1 $logowidth \* $logoscale`
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21 set newheight = `calc -p1 $logoheight \* $logoscale`
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22 else if ( { executable dc } ) then
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23 # the k command of dc doesn't seem to have much of an effect
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24 set newwidth = `echo 0 k $logowidth $logoscale \* p | dc`
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25 set newheight = `echo 0 k $logoheight $logoscale \* p | dc`
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26 else if ( { executable bc } ) then
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27 # nor does the scale variable of bc. This will lead to fractional numbers
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28 # in the %%BoundingBox statement of the EPS file.
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29 # Let's hope your dvips doesn't have a problem with it.
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30 set newwidth = `echo "scale=0; $logowidth * $logoscale" | bc`
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31 set newheight = `echo "scale=0; $logoheight * $logoscale" | bc`
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32 endif
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33 sed -e"/%%BoundingBox/{s/$logowidth/$newwidth/;s/$logoheight/$newheight/;}"\
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34 -e"/scale/{s/$logowidth.0/$newwidth/;s/$logoheight.0/$newheight/;}"\
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35 gnuslogo.ps >! gnuslogo.$1
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