version 1.148.2.1, 2008/12/11 22:48:56
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version 1.157, 2012/07/04 11:06:57
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Line 26
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
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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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my %linetypes = |
my %linetypes = # For png use these linetypes. |
( |
( |
solid => 1, |
solid => 1, |
dashed => 0 |
dashed => 0 |
); |
); |
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my %ps_linetypes = # For ps the line types are different! |
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( |
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solid => 0, |
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dashed => 7 |
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); |
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my %linestyles = |
my %linestyles = |
( |
( |
Line 169 my %gnuplot_defaults =
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Line 181 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 462 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 470 my %axis_defaults =
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test => $color_test, |
test => $color_test, |
description => 'Color of grid lines (x000000)', |
description => 'Color of grid lines (x000000)', |
edit_type => 'entry', |
edit_type => 'entry', |
size => '10' |
size => '10', |
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class => 'colorchooser' |
}, |
}, |
xmin => { |
xmin => { |
default => '-10.0', |
default => '-10.0', |
Line 496 my %axis_defaults =
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Line 511 my %axis_defaults =
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yformat => { |
yformat => { |
default => 'on', |
default => 'on', |
test => sub {$_[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 542 my %curve_defaults =
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test => $color_test, |
test => $color_test, |
description => 'Color of curve (x000000)', |
description => 'Color of curve (x000000)', |
edit_type => 'entry', |
edit_type => 'entry', |
size => '10' |
size => '10', |
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class => 'colorchooser' |
}, |
}, |
name => { |
name => { |
default => '', |
default => '', |
Line 598 sub start_gnuplot {
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Line 629 sub start_gnuplot {
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} elsif ($target eq 'modified') { |
} elsif ($target eq 'modified') { |
my $constructtag=&Apache::edit::get_new_args |
my $constructtag=&Apache::edit::get_new_args |
($token,$parstack,$safeeval,keys(%gnuplot_defaults)); |
($token,$parstack,$safeeval,keys(%gnuplot_defaults)); |
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if ($constructtag) { |
if ($constructtag) { |
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# |
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# The color chooser does not prepent x to the color values |
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# Do that here: |
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# |
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foreach my $attribute ('bgcolor', 'fgcolor') { |
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my $value = $token->[2]{$attribute}; |
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if (defined $value && !($value =~ /^x/)) { |
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$token->[2]{$attribute} = 'x' . $value; |
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} |
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} |
$result = &Apache::edit::rebuild_tag($token); |
$result = &Apache::edit::rebuild_tag($token); |
} |
} |
} |
} |
Line 612 sub end_gnuplot {
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Line 654 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 667 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.'_'.$$.$randnumber.'_plot'; |
'_'.time.'_'.$$.$randnumber.'_plot'; |
## Write the plot description to the file |
## Write the plot description to the file |
Line 644 ENDIMAGE
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Line 687 ENDIMAGE
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#might be inside the safe space, register the URL for later |
#might be inside the safe space, register the URL for later |
&Apache::lonxml::register_ssi("/cgi-bin/plot.gif?file=$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 1328 sub start_curve {
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Line 1371 sub start_curve {
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my $constructtag=&Apache::edit::get_new_args |
my $constructtag=&Apache::edit::get_new_args |
($token,$parstack,$safeeval,keys(%curve_defaults)); |
($token,$parstack,$safeeval,keys(%curve_defaults)); |
if ($constructtag) { |
if ($constructtag) { |
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# |
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# Fix up the color attribute as jcolor does not prepend an x |
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# |
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my $value = $token->[2]{'color'}; |
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if (defined $value && !($value =~ /^x/)) { |
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$token->[2]{'color'} = 'x' . $value; |
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} |
$result = &Apache::edit::rebuild_tag($token); |
$result = &Apache::edit::rebuild_tag($token); |
} |
} |
} |
} |
Line 1474 sub start_axis {
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Line 1524 sub start_axis {
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} elsif ($target eq 'modified') { |
} elsif ($target eq 'modified') { |
my $constructtag=&Apache::edit::get_new_args |
my $constructtag=&Apache::edit::get_new_args |
($token,$parstack,$safeeval,keys(%axis_defaults)); |
($token,$parstack,$safeeval,keys(%axis_defaults)); |
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if ($constructtag) { |
if ($constructtag) { |
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# |
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# Fix up the color attribute since jchooser does not |
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# prepend an x to the color: |
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# |
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my $value = $token->[2]{'color'}; |
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if (defined $value && !($value =~ /^x/)) { |
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$token->[2]{'color'} = 'x' . $value; |
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} |
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$result = &Apache::edit::rebuild_tag($token); |
$result = &Apache::edit::rebuild_tag($token); |
} |
} |
} |
} |
Line 1567 sub write_gnuplot_file {
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Line 1627 sub write_gnuplot_file {
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$curve->{'color'} : |
$curve->{'color'} : |
$Apache::lonplot::plot{'fgcolor'} ); |
$Apache::lonplot::plot{'fgcolor'} ); |
} |
} |
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# set term |
# set term |
if ($target eq 'web') { |
if ($target eq 'web') { |
$gnuplot_input .= 'set terminal png enhanced nocrop '; |
$gnuplot_input .= 'set terminal png enhanced nocrop '; |
Line 1579 sub write_gnuplot_file {
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Line 1640 sub write_gnuplot_file {
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# 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 enhanced $Apache::lonplot::plot{'plotcolor'} solid "; |
$gnuplot_input .= "set term postscript eps enhanced $Apache::lonplot::plot{'plotcolor'} dash "; |
if (!$font_properties->{'tex_no_file'}) { |
if (!$font_properties->{'tex_no_file'}) { |
$gnuplot_input .= |
$gnuplot_input .= |
'fontfile "'.$Apache::lonnet::perlvar{'lonFontsDir'}. |
'fontfile "'.$Apache::lonnet::perlvar{'lonFontsDir'}. |
Line 1587 sub write_gnuplot_file {
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Line 1648 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 1728 sub write_gnuplot_file {
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Line 1789 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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$gnuplot_input .= "\n"; |
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} |
} |
} |
# Key |
# Key |
if (%key) { |
if (%key) { |
Line 1759 sub write_gnuplot_file {
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Line 1840 sub write_gnuplot_file {
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$gnuplot_input .="\n"; |
$gnuplot_input .="\n"; |
} |
} |
# curves |
# curves |
$gnuplot_input .= 'plot '; |
# |
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# Each curve will have its very own linestyle. |
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# (This should work just fine in web rendition I think). |
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# The line_xxx variables will hold the elements of the line style. |
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# type (solid/dashed), color, width |
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# |
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my $linestyle_index = 50; |
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my $line_width = ''; |
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my $plot_command; |
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my $plot_type; |
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for (my $i = 0;$i<=$#curves;$i++) { |
for (my $i = 0;$i<=$#curves;$i++) { |
$curve = $curves[$i]; |
$curve = $curves[$i]; |
$gnuplot_input.= ', ' if ($i > 0); |
$plot_command.= ', ' if ($i > 0); |
if ($target eq 'tex') { |
if ($target eq 'tex') { |
$curve->{'linewidth'} *= 2; |
$curve->{'linewidth'} *= 2; |
} |
} |
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$line_width = $curve->{'linewidth'}; |
if (exists($curve->{'function'})) { |
if (exists($curve->{'function'})) { |
$gnuplot_input.= |
$plot_type = |
$curve->{'function'}.' title "'. |
$curve->{'function'}.' title "'. |
$curve->{'name'}.'" with '. |
$curve->{'name'}.'" with '. |
$curve->{'linestyle'}; |
$curve->{'linestyle'}; |
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if (($curve->{'linestyle'} eq 'points') || |
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($curve->{'linestyle'} eq 'linespoints') || |
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($curve->{'linestyle'} eq 'errorbars') || |
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($curve->{'linestyle'} eq 'xerrorbars') || |
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($curve->{'linestyle'} eq 'yerrorbars') || |
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($curve->{'linestyle'} eq 'xyerrorbars')) { |
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$gnuplot_input.=' pointtype '.$curve->{'pointtype'}; |
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$gnuplot_input.=' pointsize '.$curve->{'pointsize'}; |
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} elsif ($curve->{'linestyle'} eq 'filledcurves') { |
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$gnuplot_input.= ' '.$curve->{'limit'}; |
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} elsif ($curve->{'linetype'} ne '' && |
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$curve->{'linestyle'} eq 'lines') { |
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$gnuplot_input.= ' linetype '; |
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$gnuplot_input.= $linetypes{$curve->{'linetype'}}; |
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$gnuplot_input.= ' linecolor rgb "'; |
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# convert color from xaaaaaa to #aaaaaa |
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$curve->{'color'} =~ s/^x/#/; |
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$gnuplot_input.= $curve->{'color'}.'"'; |
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} |
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$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 1813 sub write_gnuplot_file {
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Line 1884 sub write_gnuplot_file {
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print $fh $datatext; |
print $fh $datatext; |
close($fh); |
close($fh); |
# generate gnuplot text |
# generate gnuplot text |
$gnuplot_input.= '"'.$datafilename.'" title "'. |
$plot_type = '"'.$datafilename.'" title "'. |
$curve->{'name'}.'" with '. |
$curve->{'name'}.'" with '. |
$curve->{'linestyle'}; |
$curve->{'linestyle'}; |
if (($curve->{'linestyle'} eq 'points') || |
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($curve->{'linestyle'} eq 'linespoints') || |
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($curve->{'linestyle'} eq 'errorbars') || |
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($curve->{'linestyle'} eq 'xerrorbars') || |
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($curve->{'linestyle'} eq 'yerrorbars') || |
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($curve->{'linestyle'} eq 'xyerrorbars')) { |
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$gnuplot_input.=' pointtype '.$curve->{'pointtype'}; |
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$gnuplot_input.=' pointsize '.$curve->{'pointsize'}; |
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} elsif ($curve->{'linestyle'} eq 'filledcurves') { |
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$gnuplot_input.= ' '.$curve->{'limit'}; |
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} elsif ($curve->{'linetype'} ne '' && |
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$curve->{'linestyle'} eq 'lines') { |
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$gnuplot_input.= ' linetype '; |
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$gnuplot_input.= $linetypes{$curve->{'linetype'}}; |
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$gnuplot_input.= ' linecolor rgb "'; |
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# convert color from xaaaaaa to #aaaaaa |
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$curve->{'color'} =~ s/^x/#/; |
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$gnuplot_input.= $curve->{'color'}.'"'; |
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} |
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$gnuplot_input.= ' linewidth '.$curve->{'linewidth'}; |
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} |
} |
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my $pointtype = ''; |
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my $pointsize = ''; |
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if (($curve->{'linestyle'} eq 'points') || |
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($curve->{'linestyle'} eq 'linespoints') || |
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($curve->{'linestyle'} eq 'errorbars') || |
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($curve->{'linestyle'} eq 'xerrorbars') || |
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($curve->{'linestyle'} eq 'yerrorbars') || |
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($curve->{'linestyle'} eq 'xyerrorbars')) { |
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$pointtype =' pointtype '.$curve->{'pointtype'}; |
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$pointsize =' pointsize '.$curve->{'pointsize'}; |
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} elsif ($curve->{'linestyle'} eq 'filledcurves') { |
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$plot_command.= ' '.$curve->{'limit'}; |
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} |
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#elsif ($curve->{'linetype'} ne '' && |
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# $curve->{'linestyle'} eq 'lines') |
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# |
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# |
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# $plot_command.= ' linetype '; |
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# $plot_command.= $linetypes{$curve->{'linetype'}}; |
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# $plot_command.= ' linecolor rgb "'; |
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# # convert color from xaaaaaa to #aaaaaa |
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# $curve->{'color'} =~ s/^x/#/; |
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# $plot_command.= $curve->{'color'}.'"'; |
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# } |
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# Figure out the linestyle: |
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my $lt = $curve->{'linetype'} ne '' ? $curve->{'linetype'} |
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: 'solid'; # Line type defaults to solid. |
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# The mapping of lt -> the actual gnuplot line type depends on the target: |
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if ($target eq 'tex') { |
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$lt = $ps_linetypes{$lt}; |
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} else { |
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$lt = $linetypes{$lt} |
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} |
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my $color = $curve->{'color'}; |
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$color =~ s/^x/#/; # Convert xhex color -> #hex color. |
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my $style_command = "set style line $linestyle_index $pointtype $pointsize linetype $lt linewidth $line_width lc rgb '$color'\n"; |
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$gnuplot_input .= $style_command; |
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$plot_command.= " ls $linestyle_index"; |
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$gnuplot_input .= 'plot ' . $plot_type . ' ' . $plot_command . "\n"; |
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$linestyle_index++; # Each curve get a unique linestyle. |
} |
} |
# Write the output to a file. |
# Write the output to a file. |
open (my $fh,">$tmpdir$filename.data"); |
open (my $fh,">$tmpdir$filename.data"); |
Line 1887 sub edit_attributes {
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Line 1987 sub edit_attributes {
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if ($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 2016 sub insert_data {
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Line 2117 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 |