loncom/cgi/plot.gif - diff

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version 1.12, 2006/09/06 19:26:07	version 1.17, 2020/02/19 18:53:17
Line 47 if ($output eq '') {	Line 47 if ($output eq '') {
}	}

if ($output eq 'gif' \|\| $output eq 'png') {	if ($output eq 'gif' \|\| $output eq 'png') {
open PLOT, "gnuplot $filename \|";	if (open(my $plot, "export LANG='en_US.UTF-8'; gnuplot $filename \|")) {
print <<"END";
	print <<"END";
Content-type: image/$output	Content-type: image/$output

END	END
while ($_=<PLOT>) {	while (my $line = <$plot>) {
print;	print($line);
	}
	close($plot);
	} else {
	die "failed to open pipe to run gnuplot\n";
}	}

} elsif ($output eq 'eps') {	} elsif ($output eq 'eps') {
print <<"END";	print <<"END";
Content-type: text/html	Content-type: text/html
Line 64 Content-type: text/html	Line 70 Content-type: text/html
<h2>Creating eps plot</h2>	<h2>Creating eps plot</h2>

END	END
if (! system ("gnuplot $filename")) {	if (! system ("export LANG='en_US.UTF-8'; 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 {