version 1.127, 2007/08/04 00:01:52
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version 1.132, 2007/12/05 23:22:18
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Line 36 use Apache::response;
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Line 36 use Apache::response;
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use Apache::lonxml; |
use Apache::lonxml; |
use Apache::edit; |
use Apache::edit; |
use Apache::lonnet; |
use Apache::lonnet; |
use lib '/home/httpd/lib/perl/'; |
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use LONCAPA; |
use LONCAPA; |
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use vars qw/$weboutputformat $versionstring/; |
use vars qw/$weboutputformat $version/; |
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Line 49 BEGIN {
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Line 48 BEGIN {
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# |
# |
# Determine the version of GNUPLOT |
# Determine the version of GNUPLOT |
$weboutputformat = 'gif'; |
$weboutputformat = 'gif'; |
$versionstring = `gnuplot --version 2>/dev/null`; |
my $versionstring = `gnuplot --version 2>/dev/null`; |
if ($versionstring =~ /^gnuplot 4/) { |
($version) = ($versionstring =~ /^gnuplot ([\d.]+)/); |
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if ($version >= 4) { |
$weboutputformat = 'png'; |
$weboutputformat = 'png'; |
} |
} |
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Line 435 my %tic_defaults =
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Line 435 my %tic_defaults =
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}, |
}, |
); |
); |
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my @axis_edit_order = ('color','xmin','xmax','ymin','ymax'); |
my @axis_edit_order = ('color','xmin','xmax','ymin','ymax','xformat', 'yformat'); |
my %axis_defaults = |
my %axis_defaults = |
( |
( |
color => { |
color => { |
Line 472 my %axis_defaults =
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Line 472 my %axis_defaults =
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description => 'Maximum y-value shown in plot', |
description => 'Maximum y-value shown in plot', |
edit_type => 'entry', |
edit_type => 'entry', |
size => '10' |
size => '10' |
} |
}, |
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xformat => { |
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default => 'on', |
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test => sub {$_[0]=~/^(on|off|\d+(f|F|e|E))$/}, |
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description => 'X-axis number formatting', |
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edit_type => 'choice', |
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choices => ['on', 'off', '2e', '2f'], |
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}, |
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yformat => { |
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default => 'on', |
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test => sub {$_[0]=~/^(on|off|\d+(f|F|e|E))$/}, |
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description => 'X-axis number formatting', |
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edit_type => 'choice', |
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choices => ['on', 'off', '2e', '2f'], |
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}, |
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); |
); |
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my @curve_edit_order = ('color','name','linestyle','linewidth','pointtype','pointsize','limit'); |
my @curve_edit_order = ('color','name','linestyle','linewidth','pointtype','pointsize','limit'); |
Line 501 my %curve_defaults =
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Line 516 my %curve_defaults =
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choices => [keys(%linestyles)] |
choices => [keys(%linestyles)] |
}, |
}, |
linewidth => { |
linewidth => { |
default => 2, |
default => 1, |
test => $int_test, |
test => $int_test, |
description => 'Line width (may not apply to all line styles)', |
description => 'Line width (may not apply to all line styles)', |
edit_type => 'choice', |
edit_type => 'choice', |
Line 757 sub end_key {
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Line 772 sub end_key {
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return $result; |
return $result; |
} |
} |
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sub gnuplot_protect { |
sub parse_label { |
my ($string) = @_; |
my ($target,$text) = @_; |
$string =~ s{([_^&~\{\}]|\\\\)}{\\\\$1}g; |
my $parser=HTML::LCParser->new(\$text); |
return $string; |
my $result; |
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while (my $token=$parser->get_token) { |
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if ($token->[0] eq 'S') { |
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if ($token->[1] eq 'sub') { |
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$result .= '_{'; |
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} elsif ($token->[1] eq 'sup') { |
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$result .= '^{'; |
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} else { |
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$result .= $token->[4]; |
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} |
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} elsif ($token->[0] eq 'E') { |
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if ($token->[1] eq 'sub' |
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|| $token->[1] eq 'sup') { |
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$result .= '}'; |
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} else { |
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$result .= $token->[2]; |
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} |
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} elsif ($token->[0] eq 'T') { |
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$result .= &replace_entities($target,$token->[1]); |
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} |
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} |
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return $result; |
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} |
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my %lookup = |
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('(pi|#960)' => {'tex' => '{/Symbol p}', 'web' => "\x{3C0}"},); |
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sub replace_entities { |
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my ($target,$text) = @_; |
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$text =~ s{([_^~\{\}]|\\\\)}{\\\\$1}g; |
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while (my ($re, $replace) = each(%lookup)) { |
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$text =~ s/&$re;/$replace->{$target}/g; |
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} |
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$text =~ s{(&)}{\\\\$1}g; |
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return $text; |
} |
} |
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##------------------------------------------------------------------- title |
##------------------------------------------------------------------- title |
Line 774 sub start_title {
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Line 824 sub start_title {
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if (length($title) > $max_str_len) { |
if (length($title) > $max_str_len) { |
$title = substr($title,0,$max_str_len); |
$title = substr($title,0,$max_str_len); |
} |
} |
$title = &gnuplot_protect($title); |
$title = &parse_label($target,$title); |
} elsif ($target eq 'edit') { |
} elsif ($target eq 'edit') { |
$result.=&Apache::edit::tag_start($target,$token,'Plot Title'); |
$result.=&Apache::edit::tag_start($target,$token,'Plot Title'); |
my $text=&Apache::lonxml::get_all_text("/title",$parser,$style); |
my $text=&Apache::lonxml::get_all_text("/title",$parser,$style); |
Line 806 sub start_xlabel {
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Line 856 sub start_xlabel {
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if (length($xlabel) > $max_str_len) { |
if (length($xlabel) > $max_str_len) { |
$xlabel = substr($xlabel,0,$max_str_len); |
$xlabel = substr($xlabel,0,$max_str_len); |
} |
} |
$xlabel = &gnuplot_protect($xlabel); |
$xlabel = &parse_label($target,$xlabel); |
} elsif ($target eq 'edit') { |
} elsif ($target eq 'edit') { |
$result.=&Apache::edit::tag_start($target,$token,'Plot Xlabel'); |
$result.=&Apache::edit::tag_start($target,$token,'Plot Xlabel'); |
my $text=&Apache::lonxml::get_all_text("/xlabel",$parser,$style); |
my $text=&Apache::lonxml::get_all_text("/xlabel",$parser,$style); |
Line 839 sub start_ylabel {
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Line 889 sub start_ylabel {
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if (length($ylabel) > $max_str_len) { |
if (length($ylabel) > $max_str_len) { |
$ylabel = substr($ylabel,0,$max_str_len); |
$ylabel = substr($ylabel,0,$max_str_len); |
} |
} |
$ylabel = &gnuplot_protect($ylabel); |
$ylabel = &parse_label($target,$ylabel); |
} elsif ($target eq 'edit') { |
} elsif ($target eq 'edit') { |
$result .= &Apache::edit::tag_start($target,$token,'Plot Ylabel'); |
$result .= &Apache::edit::tag_start($target,$token,'Plot Ylabel'); |
my $text = &Apache::lonxml::get_all_text("/ylabel",$parser,$style); |
my $text = &Apache::lonxml::get_all_text("/ylabel",$parser,$style); |
Line 873 sub start_label {
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Line 923 sub start_label {
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$text = &Apache::run::evaluate($text,$safeeval,$$parstack[-1]); |
$text = &Apache::run::evaluate($text,$safeeval,$$parstack[-1]); |
$text =~ s/\n/ /g; |
$text =~ s/\n/ /g; |
$text = substr($text,0,$max_str_len) if (length($text) > $max_str_len); |
$text = substr($text,0,$max_str_len) if (length($text) > $max_str_len); |
$label{'text'} = &gnuplot_protect($text); |
$label{'text'} = &parse_label($target,$text); |
push(@labels,\%label); |
push(@labels,\%label); |
} elsif ($target eq 'edit') { |
} elsif ($target eq 'edit') { |
$result .= &Apache::edit::tag_start($target,$token,'Plot Label'); |
$result .= &Apache::edit::tag_start($target,$token,'Plot Label'); |
Line 1224 sub write_gnuplot_file {
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Line 1274 sub write_gnuplot_file {
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if (lc($Apache::lonplot::plot{'bmargin'}) ne 'default') { |
if (lc($Apache::lonplot::plot{'bmargin'}) ne 'default') { |
$gnuplot_input .= 'set bmargin '.$Apache::lonplot::plot{'bmargin'}.$/; |
$gnuplot_input .= 'set bmargin '.$Apache::lonplot::plot{'bmargin'}.$/; |
} |
} |
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# tic scales |
# tic scales |
$gnuplot_input .= 'set ticscale '. |
if ($version > 4) { |
$Apache::lonplot::plot{'major_ticscale'}.' '.$Apache::lonplot::plot{'minor_ticscale'}.$/; |
$gnuplot_input .= 'set tics scale '. |
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$Apache::lonplot::plot{'major_ticscale'}.', '.$Apache::lonplot::plot{'minor_ticscale'}.$/; |
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} else { |
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$gnuplot_input .= 'set ticscale '. |
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$Apache::lonplot::plot{'major_ticscale'}.' '.$Apache::lonplot::plot{'minor_ticscale'}.$/; |
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} |
#boxwidth |
#boxwidth |
if (lc($Apache::lonplot::plot{'boxwidth'}) ne '') { |
if (lc($Apache::lonplot::plot{'boxwidth'}) ne '') { |
$gnuplot_input .= 'set boxwidth '.$Apache::lonplot::plot{'boxwidth'}.$/; |
$gnuplot_input .= 'set boxwidth '.$Apache::lonplot::plot{'boxwidth'}.$/; |
Line 1280 sub write_gnuplot_file {
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Line 1336 sub write_gnuplot_file {
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} |
} |
# axis |
# axis |
if (%axis) { |
if (%axis) { |
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if ($axis{'xformat'} ne 'on') { |
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$gnuplot_input .= "set format x "; |
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if ($axis{'xformat'} eq 'off') { |
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$gnuplot_input .= "\"\"\n"; |
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} else { |
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$gnuplot_input .= "\"\%.".$axis{'xformat'}."\"\n"; |
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} |
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} |
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if ($axis{'yformat'} ne 'on') { |
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$gnuplot_input .= "set format y "; |
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if ($axis{'yformat'} eq 'off') { |
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$gnuplot_input .= "\"\"\n"; |
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} else { |
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$gnuplot_input .= "\"\%.".$axis{'yformat'}."\"\n"; |
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} |
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} |
$gnuplot_input .= "set xrange \[$axis{'xmin'}:$axis{'xmax'}\]\n"; |
$gnuplot_input .= "set xrange \[$axis{'xmin'}:$axis{'xmax'}\]\n"; |
$gnuplot_input .= "set yrange \[$axis{'ymin'}:$axis{'ymax'}\]\n"; |
$gnuplot_input .= "set yrange \[$axis{'ymin'}:$axis{'ymax'}\]\n"; |
} |
} |
Line 1320 sub write_gnuplot_file {
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Line 1392 sub write_gnuplot_file {
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$curve->{'function'}.' title "'. |
$curve->{'function'}.' title "'. |
$curve->{'name'}.'" with '. |
$curve->{'name'}.'" with '. |
$curve->{'linestyle'}; |
$curve->{'linestyle'}; |
$gnuplot_input.= ' linewidth '.$curve->{'linewidth'}; |
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if (($curve->{'linestyle'} eq 'points') || |
if (($curve->{'linestyle'} eq 'points') || |
($curve->{'linestyle'} eq 'linespoints') || |
($curve->{'linestyle'} eq 'linespoints') || |
Line 1333 sub write_gnuplot_file {
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Line 1404 sub write_gnuplot_file {
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} elsif ($curve->{'linestyle'} eq 'filledcurves') { |
} elsif ($curve->{'linestyle'} eq 'filledcurves') { |
$gnuplot_input.= ' '.$curve->{'limit'}; |
$gnuplot_input.= ' '.$curve->{'limit'}; |
} |
} |
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$gnuplot_input.= ' linewidth '.$curve->{'linewidth'}; |
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} elsif (exists($curve->{'data'})) { |
} elsif (exists($curve->{'data'})) { |
# Store data values in $datatext |
# Store data values in $datatext |
my $datatext = ''; |
my $datatext = ''; |
Line 1356 sub write_gnuplot_file {
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Line 1429 sub write_gnuplot_file {
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$gnuplot_input.= '"'.$datafilename.'" title "'. |
$gnuplot_input.= '"'.$datafilename.'" title "'. |
$curve->{'name'}.'" with '. |
$curve->{'name'}.'" with '. |
$curve->{'linestyle'}; |
$curve->{'linestyle'}; |
$gnuplot_input.= ' linewidth '.$curve->{'linewidth'}; |
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if (($curve->{'linestyle'} eq 'points') || |
if (($curve->{'linestyle'} eq 'points') || |
($curve->{'linestyle'} eq 'linespoints') || |
($curve->{'linestyle'} eq 'linespoints') || |
($curve->{'linestyle'} eq 'errorbars') || |
($curve->{'linestyle'} eq 'errorbars') || |
Line 1368 sub write_gnuplot_file {
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Line 1440 sub write_gnuplot_file {
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} elsif ($curve->{'linestyle'} eq 'filledcurves') { |
} elsif ($curve->{'linestyle'} eq 'filledcurves') { |
$gnuplot_input.= ' '.$curve->{'limit'}; |
$gnuplot_input.= ' '.$curve->{'limit'}; |
} |
} |
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$gnuplot_input.= ' linewidth '.$curve->{'linewidth'}; |
} |
} |
} |
} |
# Write the output to a file. |
# Write the output to a file. |
my $fh=Apache::File->new(">$tmpdir$filename.data"); |
open (my $fh,">$tmpdir$filename.data"); |
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binmode($fh, ":utf8"); |
print $fh $gnuplot_input; |
print $fh $gnuplot_input; |
close($fh); |
close($fh); |
# That's all folks. |
# That's all folks. |