version 1.145, 2008/06/03 10:49:00
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version 1.154, 2012/02/13 11:24:16
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
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# |
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package Apache::lonplot; |
package Apache::lonplot; |
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use strict; |
use strict; |
Line 57 BEGIN {
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Line 60 BEGIN {
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} |
} |
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=pod |
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## |
## |
## Description of data structures: |
## Description of data structures: |
## |
## |
Line 88 BEGIN {
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Line 93 BEGIN {
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## ## |
## ## |
################################################################### |
################################################################### |
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=cut |
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my $max_str_len = 50; # if a label, title, xlabel, or ylabel text |
my $max_str_len = 50; # if a label, title, xlabel, or ylabel text |
# is longer than this, it will be truncated. |
# is longer than this, it will be truncated. |
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Line 169 my %gnuplot_defaults =
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Line 176 my %gnuplot_defaults =
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test => $color_test, |
test => $color_test, |
description => 'Background color of image (xffffff)', |
description => 'Background color of image (xffffff)', |
edit_type => 'entry', |
edit_type => 'entry', |
size => '10' |
size => '10', |
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class => 'colorchooser' |
}, |
}, |
fgcolor => { |
fgcolor => { |
default => 'x000000', |
default => 'x000000', |
test => $color_test, |
test => $color_test, |
description => 'Foreground color of image (x000000)', |
description => 'Foreground color of image (x000000)', |
edit_type => 'entry', |
edit_type => 'entry', |
size => '10' |
size => '10', |
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class => 'colorchooser' |
}, |
}, |
transparent => { |
transparent => { |
default => 'off', |
default => 'off', |
Line 448 my %tic_defaults =
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Line 457 my %tic_defaults =
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}, |
}, |
); |
); |
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my @axis_edit_order = ('color','xmin','xmax','ymin','ymax','xformat', 'yformat'); |
my @axis_edit_order = ('color','xmin','xmax','ymin','ymax','xformat', 'yformat', 'xzero', 'yzero'); |
my %axis_defaults = |
my %axis_defaults = |
( |
( |
color => { |
color => { |
Line 456 my %axis_defaults =
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Line 465 my %axis_defaults =
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test => $color_test, |
test => $color_test, |
description => 'Color of grid lines (x000000)', |
description => 'Color of grid lines (x000000)', |
edit_type => 'entry', |
edit_type => 'entry', |
size => '10' |
size => '10', |
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class => 'colorchooser' |
}, |
}, |
xmin => { |
xmin => { |
default => '-10.0', |
default => '-10.0', |
Line 496 my %axis_defaults =
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Line 506 my %axis_defaults =
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yformat => { |
yformat => { |
default => 'on', |
default => 'on', |
test => sub {$_[0]=~/^(on|off|\d+(f|F|e|E))$/}, |
test => sub {$_[0]=~/^(on|off|\d+(f|F|e|E))$/}, |
description => 'X-axis number formatting', |
description => 'Y-axis number formatting', |
edit_type => 'choice', |
edit_type => 'choice', |
choices => ['on', 'off', '2e', '2f'], |
choices => ['on', 'off', '2e', '2f'], |
}, |
}, |
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xzero => { |
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default => 'off', |
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test => sub {$_[0]=~/^(off|line|thick-line|dotted)$/}, |
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description => 'Show x-zero (y=0) axis', |
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edit_type => 'choice', |
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choices => ['off', 'line', 'thick-line', 'dotted'], |
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}, |
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yzero => { |
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default => 'off', |
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test => sub {$_[0]=~/^(off|line|thick-line|dotted)$/}, |
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description => 'Show y-zero (x=0) axis', |
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edit_type => 'choice', |
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choices => ['off', 'line', 'thick-line', 'dotted'], |
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}, |
); |
); |
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my @curve_edit_order = ('color','name','linestyle','linewidth','linetype','pointtype','pointsize','limit'); |
my @curve_edit_order = ('color','name','linestyle','linewidth','linetype','pointtype','pointsize','limit'); |
Line 512 my %curve_defaults =
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Line 537 my %curve_defaults =
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test => $color_test, |
test => $color_test, |
description => 'Color of curve (x000000)', |
description => 'Color of curve (x000000)', |
edit_type => 'entry', |
edit_type => 'entry', |
size => '10' |
size => '10', |
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class => 'colorchooser' |
}, |
}, |
name => { |
name => { |
default => '', |
default => '', |
Line 612 sub end_gnuplot {
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Line 638 sub end_gnuplot {
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('title','xlabel','ylabel','key','axis','label','curve')); |
('title','xlabel','ylabel','key','axis','label','curve')); |
my $result = ''; |
my $result = ''; |
my $randnumber; |
my $randnumber; |
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my $tmpdir =LONCAPA::tempdir(); # Where temporary files live: |
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# need to call rand everytime start_script would evaluate, as the |
# need to call rand everytime start_script would evaluate, as the |
# safe space rand number generator and the global rand generator |
# safe space rand number generator and the global rand generator |
# are not separate |
# are not separate |
Line 623 sub end_gnuplot {
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Line 651 sub end_gnuplot {
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&check_inputs(); # Make sure we have all the data we need |
&check_inputs(); # Make sure we have all the data we need |
## |
## |
## Determine filename |
## Determine filename |
my $tmpdir = '/home/httpd/perl/tmp/'; |
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my $filename = $env{'user.name'}.'_'.$env{'user.domain'}. |
my $filename = $env{'user.name'}.'_'.$env{'user.domain'}. |
'_'.time.'_'.$$.$randnumber.'_plot'; |
'_'.time.'_'.$$.$randnumber.'_plot'; |
## Write the plot description to the file |
## Write the plot description to the file |
Line 644 ENDIMAGE
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Line 671 ENDIMAGE
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#might be inside the safe space, register the URL for later |
#might be inside the safe space, register the URL for later |
&Apache::lonxml::register_ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps"); |
&Apache::lonxml::register_ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps"); |
$result = "%DYNAMICIMAGE:$Apache::lonplot::plot{'width'}:$Apache::lonplot::plot{'height'}:$Apache::lonplot::plot{'texwidth'}\n"; |
$result = "%DYNAMICIMAGE:$Apache::lonplot::plot{'width'}:$Apache::lonplot::plot{'height'}:$Apache::lonplot::plot{'texwidth'}\n"; |
$result .= '\graphicspath{{/home/httpd/perl/tmp/}}'."\n"; |
$result .= '\graphicspath{{'.$tmpdir.'}}'."\n"; |
$result .= '\includegraphics[width='.$Apache::lonplot::plot{'texwidth'}.' mm]{'.&unescape($filename).'.eps}'; |
$result .= '\includegraphics[width='.$Apache::lonplot::plot{'texwidth'}.' mm]{'.&unescape($filename).'.eps}'; |
} |
} |
} elsif ($target eq 'edit') { |
} elsif ($target eq 'edit') { |
Line 757 sub get_font {
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Line 784 sub get_font {
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$selected_font = $font_properties{$Apache::lonplot::plot{'fontface'}}; |
$selected_font = $font_properties{$Apache::lonplot::plot{'fontface'}}; |
} |
} |
if ($target eq 'tex' && defined($Apache::lonplot::plot{'texfont'})) { |
if ($target eq 'tex' && defined($Apache::lonplot::plot{'texfont'})) { |
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# $selected_font = $font_properties{'classic'}; |
$size = $Apache::lonplot::plot{'texfont'}; |
$size = $Apache::lonplot::plot{'texfont'}; |
} |
} |
return ($size, $selected_font); |
return ($size, $selected_font); |
Line 1361 sub start_function {
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Line 1389 sub start_function {
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my $function = &Apache::lonxml::get_all_text("/function",$parser, |
my $function = &Apache::lonxml::get_all_text("/function",$parser, |
$style); |
$style); |
$function = &Apache::run::evaluate($function,$safeeval,$$parstack[-1]); |
$function = &Apache::run::evaluate($function,$safeeval,$$parstack[-1]); |
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$function=~s/\^/\*\*/gs; |
$curves[-1]->{'function'} = $function; |
$curves[-1]->{'function'} = $function; |
} elsif ($target eq 'edit') { |
} elsif ($target eq 'edit') { |
$result .= &Apache::edit::tag_start($target,$token,'Gnuplot compatible curve function'); |
$result .= &Apache::edit::tag_start($target,$token,'Gnuplot compatible curve function'); |
Line 1431 sub start_data {
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Line 1460 sub start_data {
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} |
} |
# complain if the number of data points is not the same as |
# complain if the number of data points is not the same as |
# in previous sets of data. |
# in previous sets of data. |
if (($curves[-1]->{'data'}) && ($#data != $#{@{$curves[-1]->{'data'}->[0]}})){ |
if (($curves[-1]->{'data'}) && ($#data != $#{$curves[-1]->{'data'}->[0]})){ |
&Apache::lonxml::warning |
&Apache::lonxml::warning |
('Number of data points is not consistent with previous '. |
('Number of data points is not consistent with previous '. |
'number of data points'); |
'number of data points'); |
Line 1585 sub write_gnuplot_file {
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Line 1614 sub write_gnuplot_file {
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} |
} |
$gnuplot_input .= ' "'.$font_properties->{'printname'}.'" '; |
$gnuplot_input .= ' "'.$font_properties->{'printname'}.'" '; |
$gnuplot_input .= $fontsize; |
$gnuplot_input .= $fontsize; |
$gnuplot_input .= "\nset output \"/home/httpd/perl/tmp/". |
$gnuplot_input .= "\nset output \"".$tmpdir. |
&unescape($filename).".eps\"\n"; |
&unescape($filename).".eps\"\n"; |
$gnuplot_input .= "set encoding iso_8859_1\n"; # Get access to extended font. |
$gnuplot_input .= "set encoding iso_8859_1\n"; # Get access to extended font. |
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Line 1675 sub write_gnuplot_file {
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Line 1704 sub write_gnuplot_file {
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$gnuplot_input .= ( $xtics{'mirror'} eq 'on'?"mirror ":"nomirror "); |
$gnuplot_input .= ( $xtics{'mirror'} eq 'on'?"mirror ":"nomirror "); |
$gnuplot_input .= "$xtics{'start'}, "; |
$gnuplot_input .= "$xtics{'start'}, "; |
$gnuplot_input .= "$xtics{'increment'}, "; |
$gnuplot_input .= "$xtics{'increment'}, "; |
$gnuplot_input .= "$xtics{'end'}\n"; |
$gnuplot_input .= "$xtics{'end'} "; |
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if ($target eq 'tex') { |
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$gnuplot_input .= 'font "Helvetica,22"'; # Needed in iso 8859-1 enc. |
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} |
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$gnuplot_input .= "\n"; |
if ($xtics{'minorfreq'} != 0) { |
if ($xtics{'minorfreq'} != 0) { |
$gnuplot_input .= "set mxtics ".$xtics{'minorfreq'}."\n"; |
$gnuplot_input .= "set mxtics ".$xtics{'minorfreq'}."\n"; |
} |
} |
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} else { |
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if ($target eq 'tex') { |
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$gnuplot_input .= 'set xtics font "Helvetica,22"'."\n"; # needed in iso 8859-1 enc |
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} |
} |
} |
if (%ytics) { |
if (%ytics) { |
$gnuplot_input .= "set ytics $ytics{'location'} "; |
$gnuplot_input .= "set ytics $ytics{'location'} "; |
$gnuplot_input .= ( $ytics{'mirror'} eq 'on'?"mirror ":"nomirror "); |
$gnuplot_input .= ( $ytics{'mirror'} eq 'on'?"mirror ":"nomirror "); |
$gnuplot_input .= "$ytics{'start'}, "; |
$gnuplot_input .= "$ytics{'start'}, "; |
$gnuplot_input .= "$ytics{'increment'}, "; |
$gnuplot_input .= "$ytics{'increment'}, "; |
$gnuplot_input .= "$ytics{'end'}\n"; |
$gnuplot_input .= "$ytics{'end'} "; |
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if ($target eq 'tex') { |
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$gnuplot_input .= 'font "Helvetica,22"'; # Needed in iso-8859-1 encoding. |
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} |
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$gnuplot_input .= "\n"; |
if ($ytics{'minorfreq'} != 0) { |
if ($ytics{'minorfreq'} != 0) { |
$gnuplot_input .= "set mytics ".$ytics{'minorfreq'}."\n"; |
$gnuplot_input .= "set mytics ".$ytics{'minorfreq'}."\n"; |
} |
} |
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} else { |
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if ($target eq 'tex') { |
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$gnuplot_input .= 'set ytics font "Helvetica,22"'."\n"; # Needed for iso 8859-1 enc. |
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} |
} |
} |
# axis |
# axis |
if (%axis) { |
if (%axis) { |
Line 1710 sub write_gnuplot_file {
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Line 1755 sub write_gnuplot_file {
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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"; |
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if ($axis{'xzero'} ne 'off') { |
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$gnuplot_input .= "set xzeroaxis "; |
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if ($axis{'xzero'} eq 'line' || $axis{'xzero'} eq 'thick-line') { |
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$gnuplot_input .= "lt -1 "; |
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if ($axis{'xzero'} eq 'thick-line') { |
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$gnuplot_input .= "lw 3 "; |
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} |
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} |
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$gnuplot_input .= "\n"; |
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} |
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if ($axis{'yzero'} ne 'off') { |
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$gnuplot_input .= "set yzeroaxis "; |
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if ($axis{'yzero'} eq 'line' || $axis{'yzero'} eq 'thick-line') { |
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$gnuplot_input .= "lt -1 "; |
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if ($axis{'yzero'} eq 'thick-line') { |
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$gnuplot_input .= "lw 3 "; |
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} |
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} |
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$gnuplot_input .= "\n"; |
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} |
} |
} |
# Key |
# Key |
if (%key) { |
if (%key) { |
Line 1869 sub edit_attributes {
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Line 1934 sub edit_attributes {
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if ($defaults->{$attr}->{'edit_type'} eq 'entry') { |
if ($defaults->{$attr}->{'edit_type'} eq 'entry') { |
$result .= &Apache::edit::text_arg |
$result .= &Apache::edit::text_arg |
($description,$attr,$token, |
($description,$attr,$token, |
$defaults->{$attr}->{'size'}); |
$defaults->{$attr}->{'size'}, |
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$defaults->{$attr}->{'class'}); |
} elsif ($defaults->{$attr}->{'edit_type'} eq 'choice') { |
} elsif ($defaults->{$attr}->{'edit_type'} eq 'choice') { |
$result .= &Apache::edit::select_or_text_arg |
$result .= &Apache::edit::select_or_text_arg |
($description,$attr,$defaults->{$attr}->{'choices'},$token); |
($description,$attr,$defaults->{$attr}->{'choices'},$token); |
Line 1998 sub insert_data {
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Line 2064 sub insert_data {
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__END__ |
__END__ |
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=head1 NAME |
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Apache::lonplot.pm |
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=head1 SYNOPSIS |
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XML-based plotter of graphs |
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This is part of the LearningOnline Network with CAPA project |
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described at http://www.lon-capa.org. |
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=head1 SUBROUTINES (parsing and edit rendering) |
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=over |
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=item start_gnuplot() |
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=item end_gnuplot() |
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=item start_xtics() |
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=item end_xtics() |
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=item start_ytics() |
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=item end_ytics() |
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=item get_font() |
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=item start_key() |
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=item end_key() |
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=item parse_label() |
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=item replace_entities() |
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=item start_title() |
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=item end_title() |
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=item start_xlabel() |
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=item end_xlabel() |
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=item start_ylabel() |
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=item end_label() |
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=item start_curve() |
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=item end_curve() |
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=item start_function() |
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=item end_function() |
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=item start_data() |
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=item end_data() |
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=item start_axis() |
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=item end_axis |
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=back |
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=head1 SUBROUTINES (Utility) |
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=over |
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=item set_defaults() |
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=item get_attributes() |
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=item write_gnuplot_file() |
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=item check_inputs() |
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=item edit_attributes() |
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=back |
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=head1 SUBROUTINES (Insertion functions for editing plots) |
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=over |
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=item insert_gnuplot() |
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=item insert_tics() |
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=item insert_xtics() |
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=item insert_key() |
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=item insert_axis() |
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=item insert_title() |
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=item insert_xlabel() |
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=item insert_ylabel() |
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=item insert_label() |
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=item insert_curve() |
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=item insert_function() |
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=item insert_data() |
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=back |
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=cut |