version 1.97, 2004/06/21 20:04:29
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version 1.108, 2005/05/31 22:15:32
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Line 35 use Apache::File;
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Line 35 use Apache::File;
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use Apache::response; |
use Apache::response; |
use Apache::lonxml; |
use Apache::lonxml; |
use Apache::edit; |
use Apache::edit; |
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use Apache::lonnet; |
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use vars qw/$weboutputformat $versionstring/; |
use vars qw/$weboutputformat $versionstring/; |
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# |
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# This variable allows a callback to be registered |
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# if a gnuplot tag block is performed. |
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# |
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my $notify_callback; |
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BEGIN { |
BEGIN { |
&Apache::lonxml::register('Apache::lonplot',('gnuplot')); |
&Apache::lonxml::register('Apache::lonplot',('gnuplot')); |
# |
# |
# Determine the version of GNUPLOT |
# Determine the version of GNUPLOT |
$weboutputformat = 'gif'; |
$weboutputformat = 'gif'; |
$versionstring = `gnuplot --version`; |
$versionstring = `gnuplot --version 2>/dev/null`; |
if ($versionstring =~ /^gnuplot 4/) { |
if ($versionstring =~ /^gnuplot 4/) { |
$weboutputformat = 'png'; |
$weboutputformat = 'png'; |
} |
} |
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$notify_callback = undef; |
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} |
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# register_callback(\&callback) |
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# Arranges for callback to be invoked on the </gnuplot> |
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# tag. |
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# |
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sub register_callback { |
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$notify_callback = shift; |
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} |
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# clear_callback(); |
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# Undefs the callback. |
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# |
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sub clear_callback { |
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$notify_callback = undef; |
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} |
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# invoke_callback() |
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# Invokes the callback if defined |
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# |
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sub invoke_callback { |
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if (defined $notify_callback) { |
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&$notify_callback(); |
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} |
} |
} |
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## |
## |
Line 119 my $words_test = sub {$_[0]=~s/\s+/
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Line 150 my $words_test = sub {$_[0]=~s/\s+/
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################################################################### |
################################################################### |
my @gnuplot_edit_order = |
my @gnuplot_edit_order = |
qw/alttag bgcolor fgcolor height width font transparent grid samples |
qw/alttag bgcolor fgcolor height width font transparent grid samples |
border align texwidth texfont plottype/; |
border align texwidth texfont plotcolor plottype lmargin rmargin tmargin |
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bmargin major_ticscale minor_ticscale/; |
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my $margin_choices = ['default',0..20]; |
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my %gnuplot_defaults = |
my %gnuplot_defaults = |
( |
( |
Line 211 my %gnuplot_defaults =
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Line 245 my %gnuplot_defaults =
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edit_type => 'choice', |
edit_type => 'choice', |
choices => [qw/8 10 12 14 16 18 20 22 24 26 28 30 32 34 36/], |
choices => [qw/8 10 12 14 16 18 20 22 24 26 28 30 32 34 36/], |
}, |
}, |
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plotcolor => { |
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default => 'monochrome', |
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test => sub {$_[0]=~/^(monochrome|color|colour)$/}, |
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description => 'Color setting for printing:', |
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edit_type => 'choice', |
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choices => [qw/monochrome color colour/], |
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}, |
plottype => { |
plottype => { |
default => 'Cartesian', |
default => 'Cartesian', |
test => sub {$_[0]=~/^(Polar|Cartesian)$/}, |
test => sub {$_[0]=~/^(Polar|Cartesian)$/}, |
Line 218 my %gnuplot_defaults =
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Line 259 my %gnuplot_defaults =
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edit_type => 'choice', |
edit_type => 'choice', |
choices => ['Cartesian','Polar'] |
choices => ['Cartesian','Polar'] |
}, |
}, |
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lmargin => { |
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default => 'default', |
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test => sub {$_[0]=~/^(default|\d+)$/}, |
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description => 'Left margin width (pts):', |
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edit_type => 'choice', |
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choices => $margin_choices, |
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}, |
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rmargin => { |
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default => 'default', |
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test => sub {$_[0]=~/^(default|\d+)$/}, |
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description => 'Right margin width (pts):', |
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edit_type => 'choice', |
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choices => $margin_choices, |
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}, |
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tmargin => { |
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default => 'default', |
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test => sub {$_[0]=~/^(default|\d+)$/}, |
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description => 'Top margin width (pts):', |
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edit_type => 'choice', |
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choices => $margin_choices, |
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}, |
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bmargin => { |
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default => 'default', |
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test => sub {$_[0]=~/^(default|\d+)$/}, |
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description => 'Bottom margin width (pts):', |
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edit_type => 'choice', |
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choices => $margin_choices, |
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}, |
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major_ticscale => { |
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default => '1', |
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test => $real_test, |
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description => 'Size of major tic marks (plot coordinates)', |
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edit_type => 'entry', |
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size => '5' |
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}, |
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minor_ticscale => { |
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default => '0.5', |
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test => $real_test, |
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description => 'Size of minor tic mark (plot coordinates)', |
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edit_type => 'entry', |
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size => '5' |
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}, |
); |
); |
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my %key_defaults = |
my %key_defaults = |
Line 311 my %tic_defaults =
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Line 394 my %tic_defaults =
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minorfreq => { |
minorfreq => { |
default => '0', |
default => '0', |
test => $int_test, |
test => $int_test, |
description => 'Number of minor tics between major tic marks', |
description => 'Number of minor tics per major tic mark', |
edit_type => 'entry', |
edit_type => 'entry', |
size => '10' |
size => '10' |
}, |
}, |
Line 411 my %curve_defaults =
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Line 494 my %curve_defaults =
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## parsing and edit rendering ## |
## parsing and edit rendering ## |
## ## |
## ## |
################################################################### |
################################################################### |
my (%plot,%key,%axis,$title,$xlabel,$ylabel,@labels,@curves,%xtics,%ytics); |
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undef %Apache::lonplot::plot; |
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my (%key,%axis,$title,$xlabel,$ylabel,@labels,@curves,%xtics,%ytics); |
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sub start_gnuplot { |
sub start_gnuplot { |
undef(%plot); undef(%key); undef(%axis); |
undef(%Apache::lonplot::plot); undef(%key); undef(%axis); |
undef($title); undef($xlabel); undef($ylabel); |
undef($title); undef($xlabel); undef($ylabel); |
undef(@labels); undef(@curves); |
undef(@labels); undef(@curves); |
undef(%xtics); undef(%ytics); |
undef(%xtics); undef(%ytics); |
Line 426 sub start_gnuplot {
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Line 511 sub start_gnuplot {
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'xtics','ytics')); |
'xtics','ytics')); |
push (@Apache::lonxml::namespace,'lonplot'); |
push (@Apache::lonxml::namespace,'lonplot'); |
if ($target eq 'web' || $target eq 'tex') { |
if ($target eq 'web' || $target eq 'tex') { |
&get_attributes(\%plot,\%gnuplot_defaults,$parstack,$safeeval, |
&get_attributes(\%Apache::lonplot::plot,\%gnuplot_defaults,$parstack,$safeeval, |
$tagstack->[-1]); |
$tagstack->[-1]); |
} elsif ($target eq 'edit') { |
} elsif ($target eq 'edit') { |
$result .= &Apache::edit::tag_start($target,$token,'GnuPlot'); |
$result .= &Apache::edit::tag_start($target,$token,'GnuPlot'); |
Line 461 sub end_gnuplot {
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Line 546 sub end_gnuplot {
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## |
## |
## Determine filename |
## Determine filename |
my $tmpdir = '/home/httpd/perl/tmp/'; |
my $tmpdir = '/home/httpd/perl/tmp/'; |
my $filename = $ENV{'user.name'}.'_'.$ENV{'user.domain'}. |
my $filename = $env{'user.name'}.'_'.$env{'user.domain'}. |
'_'.time.'_'.$$.$randnumber.'_plot'; |
'_'.time.'_'.$$.$randnumber.'_plot'; |
## Write the plot description to the file |
## Write the plot description to the file |
&write_gnuplot_file($tmpdir,$filename,$target); |
&write_gnuplot_file($tmpdir,$filename,$target); |
Line 470 sub end_gnuplot {
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Line 555 sub end_gnuplot {
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if ($target eq 'web') { |
if ($target eq 'web') { |
$result .= <<"ENDIMAGE"; |
$result .= <<"ENDIMAGE"; |
<img src = "/cgi-bin/plot.gif?file=$filename.data&output=$weboutputformat" |
<img src = "/cgi-bin/plot.gif?file=$filename.data&output=$weboutputformat" |
width = "$plot{'width'}" |
width = "$Apache::lonplot::plot{'width'}" |
height = "$plot{'height'}" |
height = "$Apache::lonplot::plot{'height'}" |
align = "$plot{'align'}" |
align = "$Apache::lonplot::plot{'align'}" |
alt = "$plot{'alttag'}" /> |
alt = "$Apache::lonplot::plot{'alttag'}" /> |
ENDIMAGE |
ENDIMAGE |
} elsif ($target eq 'tex') { |
} elsif ($target eq 'tex') { |
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&Apache::lonxml::debug(" gnuplot wid = $Apache::lonplot::plot{'width'}"); |
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&Apache::lonxml::debug(" gnuplot ht = $Apache::lonplot::plot{'height'}"); |
#might be inside the safe space, register the URL for later |
#might be inside the safe space, register the URL for later |
&Apache::lonxml::register_ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps"); |
&Apache::lonxml::register_ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps"); |
$result = '\graphicspath{{/home/httpd/perl/tmp/}}\includegraphics[width='.$plot{'texwidth'}.' mm]{'.&Apache::lonnet::unescape($filename).'.eps}'; |
$result = '\graphicspath{{/home/httpd/perl/tmp/}}\includegraphics[width='.$Apache::lonplot::plot{'texwidth'}.' mm]{'.&Apache::lonnet::unescape($filename).'.eps}'; |
} |
} |
} elsif ($target eq 'edit') { |
} elsif ($target eq 'edit') { |
$result.=&Apache::edit::tag_end($target,$token); |
$result.=&Apache::edit::tag_end($target,$token); |
} |
} |
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&invoke_callback(); |
return $result; |
return $result; |
} |
} |
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Line 953 sub write_gnuplot_file {
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Line 1041 sub write_gnuplot_file {
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my ($tmpdir,$filename,$target)= @_; |
my ($tmpdir,$filename,$target)= @_; |
my $gnuplot_input = ''; |
my $gnuplot_input = ''; |
my $curve; |
my $curve; |
my $pt = $plot{'texfont'}; |
my $pt = $Apache::lonplot::plot{'texfont'}; |
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# |
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# Check to be sure we do not have any empty curves |
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my @curvescopy; |
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foreach my $curve (@curves) { |
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if (exists($curve->{'function'})) { |
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if ($curve->{'function'} !~ /^\s*$/) { |
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push(@curvescopy,$curve); |
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} |
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} elsif (exists($curve->{'data'})) { |
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foreach my $data (@{$curve->{'data'}}) { |
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if (scalar(@$data) > 0) { |
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push(@curvescopy,$curve); |
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last; |
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} |
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} |
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} |
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} |
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@curves = @curvescopy; |
# Collect all the colors |
# Collect all the colors |
my @Colors; |
my @Colors; |
push @Colors, $plot{'bgcolor'}; |
push @Colors, $Apache::lonplot::plot{'bgcolor'}; |
push @Colors, $plot{'fgcolor'}; |
push @Colors, $Apache::lonplot::plot{'fgcolor'}; |
push @Colors, (defined($axis{'color'})?$axis{'color'}:$plot{'fgcolor'}); |
push @Colors, (defined($axis{'color'})?$axis{'color'}:$Apache::lonplot::plot{'fgcolor'}); |
foreach $curve (@curves) { |
foreach $curve (@curves) { |
push @Colors, ($curve->{'color'} ne '' ? |
push @Colors, ($curve->{'color'} ne '' ? |
$curve->{'color'} : |
$curve->{'color'} : |
$plot{'fgcolor'} ); |
$Apache::lonplot::plot{'fgcolor'} ); |
} |
} |
# set term |
# set term |
if ($target eq 'web') { |
if ($target eq 'web') { |
$gnuplot_input .= 'set term gif '; |
$gnuplot_input .= 'set term '.$weboutputformat .' '; |
$gnuplot_input .= 'transparent ' if ($plot{'transparent'} eq 'on'); |
$gnuplot_input .= 'transparent ' if ($Apache::lonplot::plot{'transparent'} eq 'on'); |
$gnuplot_input .= $plot{'font'} . ' '; |
$gnuplot_input .= $Apache::lonplot::plot{'font'} . ' '; |
$gnuplot_input .= 'size '.$plot{'width'}.','.$plot{'height'}.' '; |
$gnuplot_input .= 'size '.$Apache::lonplot::plot{'width'}.','.$Apache::lonplot::plot{'height'}.' '; |
$gnuplot_input .= "@Colors\n"; |
$gnuplot_input .= "@Colors\n"; |
# set output |
# set output |
$gnuplot_input .= "set output\n"; |
$gnuplot_input .= "set output\n"; |
} elsif ($target eq 'tex') { |
} elsif ($target eq 'tex') { |
$gnuplot_input .= "set term postscript eps monochrome solid \"Helvetica\" $pt \n"; |
$gnuplot_input .= "set term postscript eps $Apache::lonplot::plot{'plotcolor'} solid \"Helvetica\" $pt \n"; |
$gnuplot_input .= "set output \"/home/httpd/perl/tmp/". |
$gnuplot_input .= "set output \"/home/httpd/perl/tmp/". |
&Apache::lonnet::unescape($filename).".eps\"\n"; |
&Apache::lonnet::unescape($filename).".eps\"\n"; |
} |
} |
# cartesian or polar? |
# cartesian or polar? |
if (lc($plot{'plottype'}) eq 'polar') { |
if (lc($Apache::lonplot::plot{'plottype'}) eq 'polar') { |
$gnuplot_input .= 'set polar'.$/; |
$gnuplot_input .= 'set polar'.$/; |
} else { |
} else { |
# Assume Cartesian |
# Assume Cartesian |
} |
} |
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# margin |
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if (lc($Apache::lonplot::plot{'lmargin'}) ne 'default') { |
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$gnuplot_input .= 'set lmargin '.$Apache::lonplot::plot{'lmargin'}.$/; |
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} |
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if (lc($Apache::lonplot::plot{'rmargin'}) ne 'default') { |
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$gnuplot_input .= 'set rmargin '.$Apache::lonplot::plot{'rmargin'}.$/; |
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} |
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if (lc($Apache::lonplot::plot{'tmargin'}) ne 'default') { |
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$gnuplot_input .= 'set tmargin '.$Apache::lonplot::plot{'tmargin'}.$/; |
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} |
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if (lc($Apache::lonplot::plot{'bmargin'}) ne 'default') { |
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$gnuplot_input .= 'set bmargin '.$Apache::lonplot::plot{'bmargin'}.$/; |
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} |
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# tic scales |
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$gnuplot_input .= 'set ticscale '. |
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$Apache::lonplot::plot{'major_ticscale'}.' '.$Apache::lonplot::plot{'minor_ticscale'}.$/; |
# grid |
# grid |
$gnuplot_input .= 'set grid'.$/ if ($plot{'grid'} eq 'on'); |
$gnuplot_input .= 'set grid'.$/ if ($Apache::lonplot::plot{'grid'} eq 'on'); |
# border |
# border |
$gnuplot_input .= ($plot{'border'} eq 'on'? |
$gnuplot_input .= ($Apache::lonplot::plot{'border'} eq 'on'? |
'set border'.$/ : |
'set border'.$/ : |
'set noborder'.$/ ); |
'set noborder'.$/ ); |
# sampling rate for non-data curves |
# sampling rate for non-data curves |
$gnuplot_input .= "set samples $plot{'samples'}\n"; |
$gnuplot_input .= "set samples $Apache::lonplot::plot{'samples'}\n"; |
# title, xlabel, ylabel |
# title, xlabel, ylabel |
# titles |
# titles |
if ($target eq 'tex') { |
if ($target eq 'tex') { |
Line 1043 sub write_gnuplot_file {
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Line 1165 sub write_gnuplot_file {
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my $label; |
my $label; |
foreach $label (@labels) { |
foreach $label (@labels) { |
$gnuplot_input .= 'set label "'.$label->{'text'}.'" at '. |
$gnuplot_input .= 'set label "'.$label->{'text'}.'" at '. |
$label->{'xpos'}.','.$label->{'ypos'}.' '.$label->{'justify'}.' font "Helvetica,'.$pt.'pt"'.$/ ; |
$label->{'xpos'}.','.$label->{'ypos'}.' '.$label->{'justify'}; |
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if ($target eq 'tex') { |
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$gnuplot_input .=' font "Helvetica,'.$pt.'pt"' ; |
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} |
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$gnuplot_input .= $/; |
} |
} |
if ($target eq 'tex') { |
if ($target eq 'tex') { |
$gnuplot_input .="set size 1,".$plot{'height'}/$plot{'width'}*1.38; |
$gnuplot_input .="set size 1,".$Apache::lonplot::plot{'height'}/$Apache::lonplot::plot{'width'}*1.38; |
$gnuplot_input .="\n"; |
$gnuplot_input .="\n"; |
} |
} |
# curves |
# curves |
Line 1116 sub write_gnuplot_file {
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Line 1242 sub write_gnuplot_file {
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sub check_inputs { |
sub check_inputs { |
## Note: no inputs, no outputs - this acts only on global variables. |
## Note: no inputs, no outputs - this acts only on global variables. |
## Make sure we have all the input we need: |
## Make sure we have all the input we need: |
if (! %plot) { &set_defaults(\%plot,\%gnuplot_defaults); } |
if (! %Apache::lonplot::plot) { &set_defaults(\%Apache::lonplot::plot,\%gnuplot_defaults); } |
if (! %key ) {} # No key for this plot, thats okay |
if (! %key ) {} # No key for this plot, thats okay |
# if (! %axis) { &set_defaults(\%axis,\%axis_defaults); } |
# if (! %axis) { &set_defaults(\%axis,\%axis_defaults); } |
if (! defined($title )) {} # No title for this plot, thats okay |
if (! defined($title )) {} # No title for this plot, thats okay |
Line 1154 sub edit_attributes {
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Line 1280 sub edit_attributes {
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($description,$attr,$token, |
($description,$attr,$token, |
$defaults->{$attr}->{'size'}); |
$defaults->{$attr}->{'size'}); |
} elsif ($defaults->{$attr}->{'edit_type'} eq 'choice') { |
} elsif ($defaults->{$attr}->{'edit_type'} eq 'choice') { |
$result .= &Apache::edit::select_arg |
$result .= &Apache::edit::select_or_text_arg |
($description,$attr,$defaults->{$attr}->{'choices'},$token); |
($description,$attr,$defaults->{$attr}->{'choices'},$token); |
} elsif ($defaults->{$attr}->{'edit_type'} eq 'onoff') { |
} elsif ($defaults->{$attr}->{'edit_type'} eq 'onoff') { |
$result .= &Apache::edit::select_arg |
$result .= &Apache::edit::select_or_text_arg |
($description,$attr,['on','off'],$token); |
($description,$attr,['on','off'],$token); |
} |
} |
$result .= '<br />'; |
$result .= '<br />'; |