90 lines
2.0 KiB
Perl
Executable File
90 lines
2.0 KiB
Perl
Executable File
#!/usr/bin/perl
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#
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#
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# convert image to Encapsulated Postscript, with possible scaling of width
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#
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# Downloaded from http://people.redhat.com/dcm/
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#
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# Modified by tfox for Red Hat Documentation - default to width of 4
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#
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# Modified by tfox for Red Hat Documentation - if eps exists, use same scaling
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#
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if ($ARGV[0] =~ /^--width=(.+)$/) {
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$width = $1;
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shift (@ARGV);
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}
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#print "width =",$width,"\n";
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#print "argv =",$ARGV[0],"\n";
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$infile = $ARGV[0];
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$outfile = $infile;
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$outfile =~ s/\.png/\.eps/;
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if (!(-e $infile)) {
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print "File doesn't exist\n";
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exit 1;
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}
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if (!(-e $outfile)) {
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# print "EPS File doesn't exist\n";
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#default width to 4 if it is not specified
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if ($width == "") {
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$width = "4";
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}
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} else
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{
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#if eps exists AND no width is specified, use existing scaling
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if ($width == "") {
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print "scaling $infile based on existing EPS\n";
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$epsimagesz = `identify $outfile`;
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#print "epsimagesz=", $epsimagesz,"\n";
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($epsname, $epstype, $epssize, $epsrest) = split / /, $epsimagesz, 4;
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# print "epssplit:", $epsname, " ", $epstype, " ", $epssize, " ", $epsrest, "\n";
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#print "epssize = ",$epssize,"\n";
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($epsx, $epsy) = split /x/, $epssize, 2;
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($epsy, $epsrest) = split /\+/, $epsy, 2;
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#print $epsx," by ",$epsy, "\n";
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$width = $epsx/72.0;
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#print "epswidth=", $width, "\n";
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}
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}
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$imagesz = `identify $ARGV[0]`;
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#print "imagesz=", $imagesz,"\n";
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($name, $type, $size, $rest) = split / /, $imagesz, 4;
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#print "split:", $name, " ", $type, " ", $size, " ", $rest, "\n";
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#print "size = ",$size,"\n";
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($x, $y) = split /x/, $size, 2;
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($y, $rest) = split /\+/, $y, 2;
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#print $x," by ",$y, "\n";
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# if width set, we need to scale
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if ($width != "") {
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$scale = $width * (72.0/$x);
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} else {
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$scale = 1;
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}
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$scale = 72.0/$scale;
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#print "scale = ",$scale,"\n";
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#print $infile," ",$outfile,"\n";
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system("convert $infile tmpimage.pgm");
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#system("giftopnm $infile | ppmtopgm > tmpimage.pgm");
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system("convert -density $scale -colorspace gray tmpimage.pgm $outfile");
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system("rm tmpimage.pgm");
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