version 1.13, 2007/08/28 23:42:05
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version 1.15, 2016/08/19 05:15:21
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Line 25
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Line 25
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
use strict; |
use strict; |
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use bytes; |
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$|=1; |
$|=1; |
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Line 48 if ($output eq '') {
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Line 49 if ($output eq '') {
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if ($output eq 'gif' || $output eq 'png') { |
if ($output eq 'gif' || $output eq 'png') { |
open(my $plot, "gnuplot $filename |"); |
open(my $plot, "gnuplot $filename |"); |
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my $image_content= ''; |
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while (my $line = <$plot>) { |
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$image_content .= $line; |
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} |
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my $length = bytes::length($image_content); |
print <<"END"; |
print <<"END"; |
Content-type: image/$output |
Content-type: image/$output |
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Content-length: $length |
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$image_content |
END |
END |
while (my $line = <$plot>) { |
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print($line); |
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} |
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} elsif ($output eq 'eps') { |
} elsif ($output eq 'eps') { |
print <<"END"; |
print <<"END"; |
Line 67 Content-type: text/html
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Line 71 Content-type: text/html
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END |
END |
if (! system ("gnuplot $filename")) { |
if (! system ("gnuplot $filename")) { |
print "<h2>An error occured.</h2>\n". |
print "<h2>An error occurred.</h2>\n". |
"I am not going to tell you about it as I have not bothered ". |
"I am not going to tell you about it as I have not bothered ". |
"to figure out how to get you the error text.\n"; |
"to figure out how to get you the error text.\n"; |
} else { |
} else { |