--- loncom/xml/lonplot.pm 2003/05/16 15:12:49 1.84
+++ loncom/xml/lonplot.pm 2008/01/20 02:47:06 1.134
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Dynamic plot
#
-# $Id: lonplot.pm,v 1.84 2003/05/16 15:12:49 sakharuk Exp $
+# $Id: lonplot.pm,v 1.134 2008/01/20 02:47:06 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -25,24 +25,38 @@
#
# http://www.lon-capa.org/
#
-# 12/15/01 Matthew
-# 12/17 12/18 12/19 12/20 12/21 12/27 12/28 12/30 12/31 Matthew
-# 01/01/02 Matthew
-# 01/02 01/03 01/04 01/07 01/08 01/09 Matthew
-# 01/21 02/05 02/06 2/28Matthew
package Apache::lonplot;
use strict;
+use warnings FATAL=>'all';
+no warnings 'uninitialized';
use Apache::File;
use Apache::response;
use Apache::lonxml;
use Apache::edit;
+use Apache::lonnet;
+use LONCAPA;
+
+
+use vars qw/$weboutputformat $version/;
+
+
BEGIN {
- &Apache::lonxml::register('Apache::lonplot',('gnuplot'));
+ &Apache::lonxml::register('Apache::lonplot',('gnuplot'));
+ #
+ # Determine the version of GNUPLOT
+ $weboutputformat = 'gif';
+ my $versionstring = `gnuplot --version 2>/dev/null`;
+ ($version) = ($versionstring =~ /^gnuplot ([\d.]+)/);
+ if ($version >= 4) {
+ $weboutputformat = 'png';
+ }
+
}
+
##
## Description of data structures:
##
@@ -91,6 +105,7 @@ my %linestyles =
yerrorbars => [3,4],
xyerrorbars => [4,6],
boxes => 3,
+ filledcurves => 2,
vector => 4
);
@@ -102,7 +117,7 @@ my $pos_real_test =
my $color_test = sub {$_[0]=~s/\s+//g;$_[0]=~/^x[\da-fA-F]{6}$/};
my $onoff_test = sub {$_[0]=~/^(on|off)$/};
my $key_pos_test = sub {$_[0]=~/^(top|bottom|right|left|outside|below| )+$/};
-my $sml_test = sub {$_[0]=~/^(small|medium|large)$/};
+my $sml_test = sub {$_[0]=~/^(\d+|small|medium|large)$/};
my $linestyle_test = sub {exists($linestyles{$_[0]})};
my $words_test = sub {$_[0]=~s/\s+/ /g;$_[0]=~/^([\w~!\@\#\$\%^&\*\(\)-=_\+\[\]\{\}:\;\'<>,\.\/\?\\]+ ?)+$/};
@@ -112,75 +127,48 @@ my $words_test = sub {$_[0]=~s/\s+/
## ##
###################################################################
my @gnuplot_edit_order =
- qw/alttag bgcolor fgcolor height width font transparent grid samples
- border align texwidth/;
+ qw/alttag bgcolor fgcolor height width texwidth fontface font texfont
+ transparent grid samples
+ border align plotcolor plottype gridtype lmargin rmargin
+ tmargin bmargin major_ticscale minor_ticscale boxwidth gridlayer fillstyle
+ pattern solid/;
-my $gnuplot_help_text = <<"ENDPLOTHELP";
-<p>
-The <b>gnuplot</b> tag allows an author to design a plot which can
-be created on the fly. This is intended for use in homework problems
-where each student needs to see a distinct plot. It can be used in
-conjunction with a <b>script</b> tag to generate random plots.
-</p><p>
-A <b>gnuplot</b> tag can contain the following sub-tags:
-</p>
-<dl>
-<dt> Plot Label
- <dd> Allows you to place text at a given (x,y) coordinate on the plot.
-<dt> Plot Title
- <dd> The title of the plot
-<dt> Plot Xlabel
- <dd> The label on the horizontal axis of the plot
-<dt> Plot Ylabel
- <dd> The label on the vertical axis of the plot
-<dt> Plot Axes
- <dd> allows specification of the x and y ranges displayed in the plot
-<dt> Plot Key
- <dd> Lists the functions displayed in the plot.
-<dt> Plot Curve
- <dd> Sets the data used in the plot.
-<dt> Plot Tics
- <dd> Allows specification of the x and y coordinate 'tics' on the axes.
-This is mostly used to adjust the grid lines when a grid is displayed.
-</dl>
-If you are having trouble with your plot, please read the help
-available on Plot Curve.
-ENDPLOTHELP
+my $margin_choices = ['default',0..20];
my %gnuplot_defaults =
(
alttag => {
default => 'dynamically generated plot',
test => $words_test,
- description => 'brief description of the plot',
+ description => 'Brief description of the plot',
edit_type => 'entry',
size => '40'
},
height => {
default => 300,
test => $int_test,
- description => 'height of image (pixels)',
+ description => 'Height of image (pixels)',
edit_type => 'entry',
size => '10'
},
width => {
default => 400,
test => $int_test,
- description => 'width of image (pixels)',
+ description => 'Width of image (pixels)',
edit_type => 'entry',
size => '10'
},
bgcolor => {
default => 'xffffff',
test => $color_test,
- description => 'background color of image (xffffff)',
+ description => 'Background color of image (xffffff)',
edit_type => 'entry',
size => '10'
},
fgcolor => {
default => 'x000000',
test => $color_test,
- description => 'foreground color of image (x000000)',
+ description => 'Foreground color of image (x000000)',
edit_type => 'entry',
size => '10'
},
@@ -196,6 +184,19 @@ my %gnuplot_defaults =
description => 'Display grid',
edit_type => 'onoff'
},
+ gridlayer => {
+ default => 'off',
+ test => $onoff_test,
+ description => 'Display grid front layer over filled boxes or filled curves',
+ edit_type => 'onoff'
+ },
+ box_border => {
+ default => 'noborder',
+ test => sub {$_[0]=~/^(noborder|border)$/},
+ description => 'Draw border for boxes',
+ edit_type => 'choice',
+ choices => ['border','noborder']
+ },
border => {
default => 'on',
test => $onoff_test,
@@ -203,13 +204,20 @@ my %gnuplot_defaults =
edit_type => 'onoff'
},
font => {
- default => 'medium',
+ default => '9',
test => $sml_test,
- description => 'Size of font to use',
+ description => 'Font size to use in web output (pts)',
edit_type => 'choice',
- choices => ['small','medium','large']
+ choices => [['5','5 (small)'],'6','7','8',['9','9 (medium)'],'10',['11','11 (large)'],'12','15']
},
- samples => {
+ fontface => {
+ default => 'sans-serif',
+ test => sub {$_[0]=~/^(sans-serif|serif|classic)$/},
+ description => 'Type of font to use',
+ edit_type => 'choice',
+ choices => ['sans-serif','serif', 'classic']
+ },
+ samples => {
default => '100',
test => $int_test,
description => 'Number of samples for non-data plots',
@@ -217,11 +225,11 @@ my %gnuplot_defaults =
choices => ['100','200','500','1000','2000','5000']
},
align => {
- default => 'center',
- test => sub {$_[0]=~/^(left|right|center)$/},
- description => 'alignment for image in html',
+ default => 'middle',
+ test => sub {$_[0]=~/^(left|right|middle|center)$/},
+ description => 'Alignment for image in HTML',
edit_type => 'choice',
- choices => ['left','right','center']
+ choices => ['left','right','middle']
},
texwidth => {
default => '93',
@@ -230,6 +238,104 @@ my %gnuplot_defaults =
edit_type => 'entry',
size => '5'
},
+ texfont => {
+ default => '22',
+ test => $int_test,
+ description => 'Font size to use in TeX output (pts):',
+ edit_type => 'choice',
+ choices => [qw/8 10 12 14 16 18 20 22 24 26 28 30 32 34 36/],
+ },
+ plotcolor => {
+ default => 'monochrome',
+ test => sub {$_[0]=~/^(monochrome|color|colour)$/},
+ description => 'Color setting for printing:',
+ edit_type => 'choice',
+ choices => [qw/monochrome color colour/],
+ },
+ pattern => {
+ default => '',
+ test => $int_test,
+ description => 'Pattern value for boxes:',
+ edit_type => 'choice',
+ choices => [0,1,2,3,4,5,6]
+ },
+ solid => {
+ default => 0,
+ test => $real_test,
+ description => 'The density of fill style for boxes',
+ edit_type => 'entry',
+ size => '5'
+ },
+ fillstyle => {
+ default => 'empty',
+ test => sub {$_[0]=~/^(empty|solid|pattern)$/},
+ description => 'Filled style for boxes:',
+ edit_type => 'choice',
+ choices => ['empty','solid','pattern']
+ },
+ plottype => {
+ default => 'Cartesian',
+ test => sub {$_[0]=~/^(Polar|Cartesian)$/},
+ description => 'Plot type:',
+ edit_type => 'choice',
+ choices => ['Cartesian','Polar']
+ },
+ gridtype => {
+ default => 'Cartesian',
+ test => sub {$_[0]=~/^(Polar|Cartesian|Linear-Log|Log-Linear|Log-Log)$/},
+ description => 'Grid type:',
+ edit_type => 'choice',
+ choices => ['Cartesian','Polar','Linear-Log','Log-Linear','Log-Log']
+ },
+ lmargin => {
+ default => 'default',
+ test => sub {$_[0]=~/^(default|\d+)$/},
+ description => 'Left margin width (pts):',
+ edit_type => 'choice',
+ choices => $margin_choices,
+ },
+ rmargin => {
+ default => 'default',
+ test => sub {$_[0]=~/^(default|\d+)$/},
+ description => 'Right margin width (pts):',
+ edit_type => 'choice',
+ choices => $margin_choices,
+ },
+ tmargin => {
+ default => 'default',
+ test => sub {$_[0]=~/^(default|\d+)$/},
+ description => 'Top margin width (pts):',
+ edit_type => 'choice',
+ choices => $margin_choices,
+ },
+ bmargin => {
+ default => 'default',
+ test => sub {$_[0]=~/^(default|\d+)$/},
+ description => 'Bottom margin width (pts):',
+ edit_type => 'choice',
+ choices => $margin_choices,
+ },
+ boxwidth => {
+ default => '',
+ test => $real_test,
+ description => 'Width of boxes, default is auto',
+ edit_type => 'entry',
+ size => '5'
+ },
+ major_ticscale => {
+ default => '1',
+ test => $real_test,
+ description => 'Size of major tic marks (plot coordinates)',
+ edit_type => 'entry',
+ size => '5'
+ },
+ minor_ticscale => {
+ default => '0.5',
+ test => $real_test,
+ description => 'Size of minor tic mark (plot coordinates)',
+ edit_type => 'entry',
+ size => '5'
+ },
);
my %key_defaults =
@@ -250,7 +356,7 @@ my %key_defaults =
pos => {
default => 'top right',
test => $key_pos_test,
- description => 'position of the key on the plot',
+ description => 'Position of the key on the plot',
edit_type => 'choice',
choices => ['top left','top right','bottom left','bottom right',
'outside','below']
@@ -262,14 +368,14 @@ my %label_defaults =
xpos => {
default => 0,
test => $real_test,
- description => 'x position of label (graph coordinates)',
+ description => 'X position of label (graph coordinates)',
edit_type => 'entry',
size => '10'
},
ypos => {
default => 0,
test => $real_test,
- description => 'y position of label (graph coordinates)',
+ description => 'Y position of label (graph coordinates)',
edit_type => 'entry',
size => '10'
},
@@ -279,134 +385,133 @@ my %label_defaults =
description => 'justification of the label text on the plot',
edit_type => 'choice',
choices => ['left','right','center']
+ },
+ rotate => {
+ default => 0,
+ test => $real_test,
+ description => 'Rotation of label (degrees)',
+ edit_type => 'entry',
+ size => '10',
}
);
-my @tic_edit_order = ('location','mirror','start','increment','end');
+my @tic_edit_order = ('location','mirror','start','increment','end',
+ 'minorfreq');
my %tic_defaults =
(
location => {
default => 'border',
test => sub {$_[0]=~/^(border|axis)$/},
- description => 'Location of tick marks',
+ description => 'Location of major tic marks',
edit_type => 'choice',
choices => ['border','axis']
},
mirror => {
default => 'on',
test => $onoff_test,
- description => 'mirror ticks on opposite axis?',
+ description => 'Mirror tics on opposite axis?',
edit_type => 'onoff'
},
start => {
default => '-10.0',
test => $real_test,
- description => 'Start ticks at',
+ description => 'Start major tics at',
edit_type => 'entry',
size => '10'
},
increment => {
default => '1.0',
test => $real_test,
- description => 'Place a tick every',
+ description => 'Place a major tic every',
edit_type => 'entry',
size => '10'
},
end => {
default => ' 10.0',
test => $real_test,
- description => 'Stop ticks at ',
+ description => 'Stop major tics at ',
edit_type => 'entry',
size => '10'
},
+ minorfreq => {
+ default => '0',
+ test => $int_test,
+ description => 'Number of minor tics per major tic mark',
+ edit_type => 'entry',
+ size => '10'
+ },
);
-my @axis_edit_order = ('color','xmin','xmax','ymin','ymax');
+my @axis_edit_order = ('color','xmin','xmax','ymin','ymax','xformat', 'yformat');
my %axis_defaults =
(
color => {
default => 'x000000',
test => $color_test,
- description => 'color of grid lines (x000000)',
+ description => 'Color of grid lines (x000000)',
edit_type => 'entry',
size => '10'
},
xmin => {
default => '-10.0',
test => $real_test,
- description => 'minimum x-value shown in plot',
+ description => 'Minimum x-value shown in plot',
edit_type => 'entry',
size => '10'
},
xmax => {
default => ' 10.0',
test => $real_test,
- description => 'maximum x-value shown in plot',
+ description => 'Maximum x-value shown in plot',
edit_type => 'entry',
size => '10'
},
ymin => {
default => '-10.0',
test => $real_test,
- description => 'minimum y-value shown in plot',
+ description => 'Minimum y-value shown in plot',
edit_type => 'entry',
size => '10'
},
ymax => {
default => ' 10.0',
test => $real_test,
- description => 'maximum y-value shown in plot',
+ description => 'Maximum y-value shown in plot',
edit_type => 'entry',
size => '10'
- }
- );
+ },
+ xformat => {
+ default => 'on',
+ test => sub {$_[0]=~/^(on|off|\d+(f|F|e|E))$/},
+ description => 'X-axis number formatting',
+ edit_type => 'choice',
+ choices => ['on', 'off', '2e', '2f'],
+ },
+ yformat => {
+ default => 'on',
+ test => sub {$_[0]=~/^(on|off|\d+(f|F|e|E))$/},
+ description => 'X-axis number formatting',
+ edit_type => 'choice',
+ choices => ['on', 'off', '2e', '2f'],
+ },
-my $curve_help_text = <<"ENDCURVEHELP";
-The <b>curve</b> tag is where you set the data to be plotted by gnuplot.
-There are two ways of entering the information:
-<dl>
- <dt> Curve Data
- <dd> Using a <b>data</b> tag you can specify the numbers used to produce
-the plot.
-<p>
-By default, two <b>data</b> tags will be available in a plot. The
-first will specify X coordinates of the data and the second will
-give the Y coordinates of the data. When working with a linestyle that
-requires more than two data sets, inserting another <b>data</b> tag is
-required. Unfortunately, you must make sure the <b>data</b> tags appear
-in the order gnuplot expects the data.
-</p><p>
-Specifying the data should usually be done with a perl variable or array,
-such as \@Xdata and \@Ydata. You may also specify numerical data seperated
-by commas. Again, the order of the <b>data</b> tags is important. The
-first tag will be the X data and the second will be the Y data.
-</p>
- <dt> Curve Function
- <dd> The <b>function</b> tag allows you to specify the curve to be
-plotted as a formula that gnuplot can understand. <b>Be careful using this
-tag.</b> It is surprisingly easy to give gnuplot a function it cannot deal
-with properly. Be explicit: 2*sin(2*3.141592*x/4) will work but
-2sin(2*3.141592x/4) will not. If you do not receive any errors in the
-gnuplot data but still do not have an image produced, it is likely there
-is an error in your <b>function</b> tag.
-</dl>
-ENDCURVEHELP
+ );
-my @curve_edit_order = ('color','name','linestyle','pointtype','pointsize');
+my @curve_edit_order = ('color','name','linestyle','linewidth','pointtype','pointsize','limit');
my %curve_defaults =
(
color => {
default => 'x000000',
test => $color_test,
- description => 'color of curve (x000000)',
+ description => 'Color of curve (x000000)',
edit_type => 'entry',
size => '10'
},
name => {
default => '',
test => $words_test,
- description => 'name of curve to appear in key',
+ description => 'Name of curve to appear in key',
edit_type => 'entry',
size => '20'
},
@@ -417,28 +522,34 @@ my %curve_defaults =
edit_type => 'choice',
choices => [keys(%linestyles)]
},
-# gnuplots term=gif driver does not handle linewidth :(
-# linewidth => {
-# default => 1,
-# test => $int_test,
-# description => 'Line width (may not apply to all line styles)',
-# edit_type => 'choice',
-# choices => [1,2,3,4,5,6,7,8,9,10]
-# },
+ linewidth => {
+ default => 1,
+ test => $int_test,
+ description => 'Line width (may not apply to all line styles)',
+ edit_type => 'choice',
+ choices => [1,2,3,4,5,6,7,8,9,10]
+ },
pointsize => {
default => 1,
test => $pos_real_test,
- description => 'point size (may not apply to all line styles)',
+ description => 'Point size (may not apply to all line styles)',
edit_type => 'entry',
size => '5'
},
pointtype => {
default => 1,
test => $int_test,
- description => 'point type (may not apply to all line styles)',
+ description => 'Point type (may not apply to all line styles)',
edit_type => 'choice',
choices => [0,1,2,3,4,5,6]
- }
+ },
+ limit => {
+ default => 'closed',
+ test => sub {$_[0]=~/^(closed|x1|x2|y1|y2)$/},
+ description => 'Point to fill -- for filledcurves',
+ edit_type => 'choice',
+ choices => ['closed','x1','x2','y1','y2']
+ },
);
###################################################################
@@ -446,13 +557,15 @@ my %curve_defaults =
## parsing and edit rendering ##
## ##
###################################################################
-my (%plot,%key,%axis,$title,$xlabel,$ylabel,@labels,@curves,%xtics,%ytics);
+
+undef %Apache::lonplot::plot;
+my (%key,%axis,$title,$xlabel,$ylabel,@labels,@curves,%xtics,%ytics);
sub start_gnuplot {
- %plot = (); %key = (); %axis = ();
- $title = undef; $xlabel = undef; $ylabel = undef;
- $#labels = -1; $#curves = -1;
- %xtics = (); %ytics = ();
+ undef(%Apache::lonplot::plot); undef(%key); undef(%axis);
+ undef($title); undef($xlabel); undef($ylabel);
+ undef(@labels); undef(@curves);
+ undef(%xtics); undef(%ytics);
#
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
@@ -461,14 +574,14 @@ sub start_gnuplot {
'xtics','ytics'));
push (@Apache::lonxml::namespace,'lonplot');
if ($target eq 'web' || $target eq 'tex') {
- &get_attributes(\%plot,\%gnuplot_defaults,$parstack,$safeeval,
+ &get_attributes(\%Apache::lonplot::plot,\%gnuplot_defaults,$parstack,$safeeval,
$tagstack->[-1]);
} elsif ($target eq 'edit') {
$result .= &Apache::edit::tag_start($target,$token,'GnuPlot');
- $result .= &make_javascript();
- $result .= &help_win($gnuplot_help_text);
$result .= &edit_attributes($target,$token,\%gnuplot_defaults,
- \@gnuplot_edit_order);
+ \@gnuplot_edit_order)
+ .&Apache::edit::end_row()
+ .&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args
($token,$parstack,$safeeval,keys(%gnuplot_defaults));
@@ -488,7 +601,7 @@ sub end_gnuplot {
my $randnumber;
# need to call rand everytime start_script would evaluate, as the
# safe space rand number generator and the global rand generator
- # are not seperate
+ # are not separate
if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
$target eq 'answer') {
$randnumber=int(rand(1000));
@@ -498,24 +611,28 @@ sub end_gnuplot {
##
## Determine filename
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';
## Write the plot description to the file
&write_gnuplot_file($tmpdir,$filename,$target);
- $filename = &Apache::lonnet::escape($filename);
+ $filename = &escape($filename);
## return image tag for the plot
if ($target eq 'web') {
$result .= <<"ENDIMAGE";
-<img src = "/cgi-bin/plot.gif?file=$filename.data&output=gif"
- width = "$plot{'width'}"
- height = "$plot{'height'}"
- align = "$plot{'align'}"
- alt = "$plot{'alttag'}" />
+<img src = "/cgi-bin/plot.$weboutputformat?file=$filename.data"
+ width = "$Apache::lonplot::plot{'width'}"
+ height = "$Apache::lonplot::plot{'height'}"
+ align = "$Apache::lonplot::plot{'align'}"
+ alt = "$Apache::lonplot::plot{'alttag'}" />
ENDIMAGE
} elsif ($target eq 'tex') {
- &Apache::lonnet::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}';
+ &Apache::lonxml::debug(" gnuplot wid = $Apache::lonplot::plot{'width'}");
+ &Apache::lonxml::debug(" gnuplot ht = $Apache::lonplot::plot{'height'}");
+ #might be inside the safe space, register the URL for later
+ &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 .= '\graphicspath{{/home/httpd/perl/tmp/}}'."\n";
+ $result .= '\includegraphics[width='.$Apache::lonplot::plot{'texwidth'}.' mm]{'.&unescape($filename).'.eps}';
}
} elsif ($target eq 'edit') {
$result.=&Apache::edit::tag_end($target,$token);
@@ -586,6 +703,51 @@ sub end_ytics {
return $result;
}
+##-----------------------------------------------------------------font
+my %font_properties =
+ (
+ 'classic' => {
+ face => 'classic',
+ file => 'DejaVuSansMono-Bold',
+ printname => 'Helvetica',
+ tex_no_file => 1,
+ },
+ 'sans-serif' => {
+ face => 'sans-serif',
+ file => 'DejaVuSans',
+ printname => 'DejaVuSans',
+ },
+ 'serif' => {
+ face => 'serif',
+ file => 'DejaVuSerif',
+ printname => 'DejaVuSerif',
+ },
+ );
+
+sub get_font {
+ my ($target) = @_;
+ my ($size, $selected_font);
+
+ if ( $Apache::lonplot::plot{'font'} =~ /^(small|medium|large)/) {
+ $selected_font = $font_properties{'classic'};
+ if ( $Apache::lonplot::plot{'font'} eq 'small') {
+ $size = '5';
+ } elsif ( $Apache::lonplot::plot{'font'} eq 'medium') {
+ $size = '9';
+ } elsif ( $Apache::lonplot::plot{'font'} eq 'large') {
+ $size = '11';
+ } else {
+ $size = '9';
+ }
+ } else {
+ $size = $Apache::lonplot::plot{'font'};
+ $selected_font = $font_properties{$Apache::lonplot::plot{'fontface'}};
+ }
+ if ($target eq 'tex' && defined($Apache::lonplot::plot{'texfont'})) {
+ $size = $Apache::lonplot::plot{'texfont'};
+ }
+ return ($size, $selected_font);
+}
##----------------------------------------------------------------- key
sub start_key {
@@ -617,27 +779,115 @@ sub end_key {
return $result;
}
+sub parse_label {
+ my ($target,$text) = @_;
+ my $parser=HTML::LCParser->new(\$text);
+ my $result;
+ while (my $token=$parser->get_token) {
+ if ($token->[0] eq 'S') {
+ if ($token->[1] eq 'sub') {
+ $result .= '_{';
+ } elsif ($token->[1] eq 'sup') {
+ $result .= '^{';
+ } else {
+ $result .= $token->[4];
+ }
+ } elsif ($token->[0] eq 'E') {
+ if ($token->[1] eq 'sub'
+ || $token->[1] eq 'sup') {
+ $result .= '}';
+ } else {
+ $result .= $token->[2];
+ }
+ } elsif ($token->[0] eq 'T') {
+ $result .= &replace_entities($target,$token->[1]);
+ }
+ }
+ return $result;
+}
+
+
+my %lookup =
+ ('(Alpha|#913)' => {'tex' => '{/Symbol A}', 'web' => "\x{391}"},
+ '(Beta|#914)' => {'tex' => '{/Symbol B}', 'web' => "\x{392}"},
+ '(Chi|#935)' => {'tex' => '{/Symbol C}', 'web' => "\x{3A7}"},
+ '(Delta|#916)' => {'tex' => '{/Symbol D}', 'web' => "\x{394}"},
+ '(Epsilon|#917)' => {'tex' => '{/Symbol E}', 'web' => "\x{395}"},
+ '(Phi|#934)' => {'tex' => '{/Symbol F}', 'web' => "\x{3A6}"},
+ '(Gamma|#915)' => {'tex' => '{/Symbol G}', 'web' => "\x{393}"},
+ '(Eta|#919)' => {'tex' => '{/Symbol H}', 'web' => "\x{397}"},
+ '(Iota|#921)' => {'tex' => '{/Symbol I}', 'web' => "\x{399}"},
+ '(Kappa|#922)' => {'tex' => '{/Symbol K}', 'web' => "\x{39A}"},
+ '(Lambda|#923)' => {'tex' => '{/Symbol L}', 'web' => "\x{39B}"},
+ '(Mu|#924)' => {'tex' => '{/Symbol M}', 'web' => "\x{39C}"},
+ '(Nu|#925)' => {'tex' => '{/Symbol N}', 'web' => "\x{39D}"},
+ '(Omicron|#927)' => {'tex' => '{/Symbol O}', 'web' => "\x{39F}"},
+ '(Pi|#928)' => {'tex' => '{/Symbol P}', 'web' => "\x{3A0}"},
+ '(Theta|#920)' => {'tex' => '{/Symbol Q}', 'web' => "\x{398}"},
+ '(Rho|#929)' => {'tex' => '{/Symbol R}', 'web' => "\x{3A1}"},
+ '(Sigma|#931)' => {'tex' => '{/Symbol S}', 'web' => "\x{3A3}"},
+ '(Tau|#932)' => {'tex' => '{/Symbol T}', 'web' => "\x{3A4}"},
+ '(Upsilon|#933)' => {'tex' => '{/Symbol U}', 'web' => "\x{3A5}"},
+ '(Omega|#937)' => {'tex' => '{/Symbol W}', 'web' => "\x{3A9}"},
+ '(Xi|#926)' => {'tex' => '{/Symbol X}', 'web' => "\x{39E}"},
+ '(Psi|#936)' => {'tex' => '{/Symbol Y}', 'web' => "\x{3A8}"},
+ '(Zeta|#918)' => {'tex' => '{/Symbol Z}', 'web' => "\x{396}"},
+ '(alpha|#945)' => {'tex' => '{/Symbol a}', 'web' => "\x{3B1}"},
+ '(beta|#946)' => {'tex' => '{/Symbol b}', 'web' => "\x{3B2}"},
+ '(chi|#967)' => {'tex' => '{/Symbol c}', 'web' => "\x{3C7}"},
+ '(delta|#948)' => {'tex' => '{/Symbol d}', 'web' => "\x{3B4}"},
+ '(epsilon|#949)' => {'tex' => '{/Symbol e}', 'web' => "\x{3B5}"},
+ '(phi|#966)' => {'tex' => '{/Symbol f}', 'web' => "\x{3C6}"},
+ '(gamma|#947)' => {'tex' => '{/Symbol g}', 'web' => "\x{3B3}"},
+ '(eta|#951)' => {'tex' => '{/Symbol h}', 'web' => "\x{3B7}"},
+ '(iota|#953)' => {'tex' => '{/Symbol i}', 'web' => "\x{3B9}"},
+ '(kappa|#954)' => {'tex' => '{/Symbol k}', 'web' => "\x{3BA}"},
+ '(lambda|#955)' => {'tex' => '{/Symbol k}', 'web' => "\x{3BB}"},
+ '(mu|#956)' => {'tex' => '{/Symbol m}', 'web' => "\x{3BC}"},
+ '(nu|#957)' => {'tex' => '{/Symbol n}', 'web' => "\x{3BD}"},
+ '(omicron|#959)' => {'tex' => '{/Symbol o}', 'web' => "\x{3BF}"},
+ '(pi|#960)' => {'tex' => '{/Symbol p}', 'web' => "\x{3C0}"},
+ '(theta|#952)' => {'tex' => '{/Symbol q}', 'web' => "\x{3B8}"},
+ '(rho|#961)' => {'tex' => '{/Symbol r}', 'web' => "\x{3C1}"},
+ '(sigma|#963)' => {'tex' => '{/Symbol s}', 'web' => "\x{3C3}"},
+ '(tau|#964)' => {'tex' => '{/Symbol t}', 'web' => "\x{3C4}"},
+ '(upsilon|#965)' => {'tex' => '{/Symbol u}', 'web' => "\x{3C5}"},
+ '(omega|#969)' => {'tex' => '{/Symbol w}', 'web' => "\x{3C9}"},
+ '(xi|#958)' => {'tex' => '{/Symbol x}', 'web' => "\x{3BE}"},
+ '(psi|#968)' => {'tex' => '{/Symbol y}', 'web' => "\x{3C8}"},
+ '(zeta|#950)' => {'tex' => '{/Symbol z}', 'web' => "\x{3B6}"},
+ );
+
+
+sub replace_entities {
+ my ($target,$text) = @_;
+ $text =~ s{([_^~\{\}]|\\\\)}{\\\\$1}g;
+ while (my ($re, $replace) = each(%lookup)) {
+ $text =~ s/&$re;/$replace->{$target}/g;
+ }
+ $text =~ s{(&)}{\\\\$1}g;
+ return $text;
+}
+
##------------------------------------------------------------------- title
sub start_title {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
if ($target eq 'web' || $target eq 'tex') {
- $title = &Apache::lonxml::get_all_text("/title",$parser);
+ $title = &Apache::lonxml::get_all_text("/title",$parser,$style);
$title=&Apache::run::evaluate($title,$safeeval,$$parstack[-1]);
$title =~ s/\n/ /g;
if (length($title) > $max_str_len) {
$title = substr($title,0,$max_str_len);
}
+ $title = &parse_label($target,$title);
} elsif ($target eq 'edit') {
$result.=&Apache::edit::tag_start($target,$token,'Plot Title');
- my $text=&Apache::lonxml::get_all_text("/title",$parser);
- $result.=&Apache::edit::end_row().
- &Apache::edit::start_spanning_row().
- &Apache::edit::editline('',$text,'',60);
+ my $text=&Apache::lonxml::get_all_text("/title",$parser,$style);
+ $result.=&Apache::edit::editline('',$text,'',60);
} elsif ($target eq 'modified') {
- my $text=$$parser[-1]->get_text("/title");
$result.=&Apache::edit::rebuild_tag($token);
- $result.=&Apache::edit::modifiedfield($token);
+ $result.=&Apache::edit::modifiedfield("/title",$parser);
}
return $result;
}
@@ -656,22 +906,20 @@ sub start_xlabel {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
if ($target eq 'web' || $target eq 'tex') {
- $xlabel = &Apache::lonxml::get_all_text("/xlabel",$parser);
+ $xlabel = &Apache::lonxml::get_all_text("/xlabel",$parser,$style);
$xlabel=&Apache::run::evaluate($xlabel,$safeeval,$$parstack[-1]);
$xlabel =~ s/\n/ /g;
if (length($xlabel) > $max_str_len) {
$xlabel = substr($xlabel,0,$max_str_len);
}
+ $xlabel = &parse_label($target,$xlabel);
} elsif ($target eq 'edit') {
$result.=&Apache::edit::tag_start($target,$token,'Plot Xlabel');
- my $text=&Apache::lonxml::get_all_text("/xlabel",$parser);
- $result.=&Apache::edit::end_row().
- &Apache::edit::start_spanning_row().
- &Apache::edit::editline('',$text,'',60);
+ my $text=&Apache::lonxml::get_all_text("/xlabel",$parser,$style);
+ $result.=&Apache::edit::editline('',$text,'',60);
} elsif ($target eq 'modified') {
- my $text=$$parser[-1]->get_text("/xlabel");
$result.=&Apache::edit::rebuild_tag($token);
- $result.=&Apache::edit::modifiedfield($token);
+ $result.=&Apache::edit::modifiedfield("/xlabel",$parser);
}
return $result;
}
@@ -691,22 +939,20 @@ sub start_ylabel {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
if ($target eq 'web' || $target eq 'tex') {
- $ylabel = &Apache::lonxml::get_all_text("/ylabel",$parser);
+ $ylabel = &Apache::lonxml::get_all_text("/ylabel",$parser,$style);
$ylabel = &Apache::run::evaluate($ylabel,$safeeval,$$parstack[-1]);
$ylabel =~ s/\n/ /g;
if (length($ylabel) > $max_str_len) {
$ylabel = substr($ylabel,0,$max_str_len);
}
+ $ylabel = &parse_label($target,$ylabel);
} elsif ($target eq 'edit') {
$result .= &Apache::edit::tag_start($target,$token,'Plot Ylabel');
- my $text = &Apache::lonxml::get_all_text("/ylabel",$parser);
- $result .= &Apache::edit::end_row().
- &Apache::edit::start_spanning_row().
- &Apache::edit::editline('',$text,'',60);
+ my $text = &Apache::lonxml::get_all_text("/ylabel",$parser,$style);
+ $result .= &Apache::edit::editline('',$text,'',60);
} elsif ($target eq 'modified') {
- my $text=$$parser[-1]->get_text("/ylabel");
$result.=&Apache::edit::rebuild_tag($token);
- $result.=&Apache::edit::modifiedfield($token);
+ $result.=&Apache::edit::modifiedfield("/ylabel",$parser);
}
return $result;
}
@@ -729,16 +975,16 @@ sub start_label {
my %label;
&get_attributes(\%label,\%label_defaults,$parstack,$safeeval,
$tagstack->[-1]);
- my $text = &Apache::lonxml::get_all_text("/label",$parser);
+ my $text = &Apache::lonxml::get_all_text("/label",$parser,$style);
$text = &Apache::run::evaluate($text,$safeeval,$$parstack[-1]);
$text =~ s/\n/ /g;
$text = substr($text,0,$max_str_len) if (length($text) > $max_str_len);
- $label{'text'} = $text;
+ $label{'text'} = &parse_label($target,$text);
push(@labels,\%label);
} elsif ($target eq 'edit') {
$result .= &Apache::edit::tag_start($target,$token,'Plot Label');
$result .= &edit_attributes($target,$token,\%label_defaults);
- my $text = &Apache::lonxml::get_all_text("/label",$parser);
+ my $text = &Apache::lonxml::get_all_text("/label",$parser,$style);
$result .= &Apache::edit::end_row().
&Apache::edit::start_spanning_row().
&Apache::edit::editline('',$text,'',60);
@@ -746,8 +992,7 @@ sub start_label {
&Apache::edit::get_new_args
($token,$parstack,$safeeval,keys(%label_defaults));
$result.=&Apache::edit::rebuild_tag($token);
- my $text=$$parser[-1]->get_text("/label");
- $result.=&Apache::edit::modifiedfield($token);
+ $result.=&Apache::edit::modifiedfield("/label",$parser);
}
return $result;
}
@@ -775,15 +1020,16 @@ sub start_curve {
push (@curves,\%curve);
} elsif ($target eq 'edit') {
$result .= &Apache::edit::tag_start($target,$token,'Curve');
- $result .= &help_win($curve_help_text);
$result .= &edit_attributes($target,$token,\%curve_defaults,
- \@curve_edit_order);
+ \@curve_edit_order)
+ .&Apache::edit::end_row()
+ .&Apache::edit::start_spanning_row();
+
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args
($token,$parstack,$safeeval,keys(%curve_defaults));
if ($constructtag) {
$result = &Apache::edit::rebuild_tag($token);
- $result.= &Apache::edit::handle_insert();
}
}
return $result;
@@ -807,22 +1053,24 @@ sub start_function {
my $result='';
if ($target eq 'web' || $target eq 'tex') {
if (exists($curves[-1]->{'data'})) {
- &Apache::lonxml::warning('Use of <function> precludes use of <data>. The <data> will be omitted in favor of the <function> declaration.');
+ &Apache::lonxml::warning
+ ('Use of the <b>curve function</b> tag precludes use of '.
+ ' the <b>curve data</b> tag. '.
+ 'The curve data tag will be omitted in favor of the '.
+ 'curve function declaration.');
delete $curves[-1]->{'data'} ;
}
- my $function = &Apache::lonxml::get_all_text("/function",$parser);
+ my $function = &Apache::lonxml::get_all_text("/function",$parser,
+ $style);
$function = &Apache::run::evaluate($function,$safeeval,$$parstack[-1]);
$curves[-1]->{'function'} = $function;
} elsif ($target eq 'edit') {
$result .= &Apache::edit::tag_start($target,$token,'Gnuplot compatible curve function');
- my $text = &Apache::lonxml::get_all_text("/function",$parser);
- $result .= &Apache::edit::end_row().
- &Apache::edit::start_spanning_row().
- &Apache::edit::editline('',$text,'',60);
+ my $text = &Apache::lonxml::get_all_text("/function",$parser,$style);
+ $result .= &Apache::edit::editline('',$text,'',60);
} elsif ($target eq 'modified') {
$result.=&Apache::edit::rebuild_tag($token);
- my $text=$$parser[-1]->get_text("/function");
- $result.=&Apache::edit::modifiedfield($token);
+ $result.=&Apache::edit::modifiedfield("/function",$parser);
}
return $result;
}
@@ -843,12 +1091,14 @@ sub start_data {
my $result='';
if ($target eq 'web' || $target eq 'tex') {
if (exists($curves[-1]->{'function'})) {
- &Apache::lonxml::warning('Use of <data> precludes use of .'.
- '<function>. The <function> will be omitted in favor of '.
- 'the <data> declaration.');
+ &Apache::lonxml::warning
+ ('Use of the <b>curve function</b> tag precludes use of '.
+ ' the <b>curve data</b> tag. '.
+ 'The curve function tag will be omitted in favor of the '.
+ 'curve data declaration.');
delete($curves[-1]->{'function'});
}
- my $datatext = &Apache::lonxml::get_all_text("/data",$parser);
+ my $datatext = &Apache::lonxml::get_all_text("/data",$parser,$style);
$datatext=&Apache::run::evaluate($datatext,$safeeval,$$parstack[-1]);
# Deal with cases where we're given an array...
if ($datatext =~ /^\@/) {
@@ -862,21 +1112,21 @@ sub start_data {
my @data;
if ($datatext =~ /,/) { # comma deliminated
@data = split /,/,$datatext;
- } else { # Assume it's space seperated.
+ } else { # Assume it's space separated.
@data = split / /,$datatext;
}
for (my $i=0;$i<=$#data;$i++) {
# Check that it's non-empty
if (! defined($data[$i])) {
&Apache::lonxml::warning(
- 'undefined <data> value. Replacing with '.
+ 'undefined curve data value. Replacing with '.
' pi/e = 1.15572734979092');
$data[$i] = 1.15572734979092;
}
# Check that it's a number
if (! &$real_test($data[$i]) & ! &$int_test($data[$i])) {
&Apache::lonxml::warning(
- 'Bad <data> value of '.$data[$i].' Replacing with '.
+ 'Bad curve data value of '.$data[$i].' Replacing with '.
' pi/e = 1.15572734979092');
$data[$i] = 1.15572734979092;
}
@@ -891,14 +1141,11 @@ sub start_data {
push @{$curves[-1]->{'data'}},\@data;
} elsif ($target eq 'edit') {
$result .= &Apache::edit::tag_start($target,$token,'Comma or space deliminated curve data');
- my $text = &Apache::lonxml::get_all_text("/data",$parser);
- $result .= &Apache::edit::end_row().
- &Apache::edit::start_spanning_row().
- &Apache::edit::editline('',$text,'',60);
+ my $text = &Apache::lonxml::get_all_text("/data",$parser,$style);
+ $result .= &Apache::edit::editline('',$text,'',60);
} elsif ($target eq 'modified') {
$result.=&Apache::edit::rebuild_tag($token);
- my $text=$$parser[-1]->get_text("/data");
- $result.=&Apache::edit::modifiedfield($token);
+ $result.=&Apache::edit::modifiedfield("/data",$parser);
}
return $result;
}
@@ -964,8 +1211,13 @@ sub set_defaults {
sub get_attributes{
my ($values,$defaults,$parstack,$safeeval,$tag) = @_;
foreach my $attr (keys(%{$defaults})) {
- $values->{$attr} =
- &Apache::lonxml::get_param($attr,$parstack,$safeeval);
+ if ($attr eq 'texwidth' || $attr eq 'texfont') {
+ $values->{$attr} =
+ &Apache::lonxml::get_param($attr,$parstack,$safeeval,undef,1);
+ } else {
+ $values->{$attr} =
+ &Apache::lonxml::get_param($attr,$parstack,$safeeval);
+ }
if ($values->{$attr} eq '' | !defined($values->{$attr})) {
$values->{$attr} = $defaults->{$attr}->{'default'};
next;
@@ -984,45 +1236,139 @@ sub get_attributes{
##------------------------------------------------------- write_gnuplot_file
sub write_gnuplot_file {
my ($tmpdir,$filename,$target)= @_;
+ my ($fontsize, $font_properties) = &get_font($target);
my $gnuplot_input = '';
my $curve;
+ #
+ # Check to be sure we do not have any empty curves
+ my @curvescopy;
+ foreach my $curve (@curves) {
+ if (exists($curve->{'function'})) {
+ if ($curve->{'function'} !~ /^\s*$/) {
+ push(@curvescopy,$curve);
+ }
+ } elsif (exists($curve->{'data'})) {
+ foreach my $data (@{$curve->{'data'}}) {
+ if (scalar(@$data) > 0) {
+ push(@curvescopy,$curve);
+ last;
+ }
+ }
+ }
+ }
+ @curves = @curvescopy;
# Collect all the colors
my @Colors;
- push @Colors, $plot{'bgcolor'};
- push @Colors, $plot{'fgcolor'};
- push @Colors, (defined($axis{'color'})?$axis{'color'}:$plot{'fgcolor'});
+ push @Colors, $Apache::lonplot::plot{'bgcolor'};
+ push @Colors, $Apache::lonplot::plot{'fgcolor'};
+ push @Colors, (defined($axis{'color'})?$axis{'color'}:$Apache::lonplot::plot{'fgcolor'});
foreach $curve (@curves) {
push @Colors, ($curve->{'color'} ne '' ?
$curve->{'color'} :
- $plot{'fgcolor'} );
+ $Apache::lonplot::plot{'fgcolor'} );
}
# set term
if ($target eq 'web') {
- $gnuplot_input .= 'set term gif ';
- $gnuplot_input .= 'transparent ' if ($plot{'transparent'} eq 'on');
- $gnuplot_input .= $plot{'font'} . ' ';
- $gnuplot_input .= 'size '.$plot{'width'}.','.$plot{'height'}.' ';
+ $gnuplot_input .= 'set terminal png enhanced nocrop ';
+ $gnuplot_input .= 'transparent ' if ($Apache::lonplot::plot{'transparent'} eq 'on');
+ $gnuplot_input .= 'font "'.$Apache::lonnet::perlvar{'lonFontsDir'}.
+ '/'.$font_properties->{'file'}.'.ttf" ';
+ $gnuplot_input .= $fontsize;
+ $gnuplot_input .= ' size '.$Apache::lonplot::plot{'width'}.','.$Apache::lonplot::plot{'height'}.' ';
$gnuplot_input .= "@Colors\n";
# set output
$gnuplot_input .= "set output\n";
} elsif ($target eq 'tex') {
- $gnuplot_input .= "set term postscript eps monochrome solid\n";
- $gnuplot_input .= "set output \"/home/httpd/perl/tmp/".
- &Apache::lonnet::unescape($filename).".eps\"\n";
+ $gnuplot_input .= "set term postscript eps enhanced $Apache::lonplot::plot{'plotcolor'} solid ";
+ if (!$font_properties->{'tex_no_file'}) {
+ $gnuplot_input .=
+ 'fontfile "'.$Apache::lonnet::perlvar{'lonFontsDir'}.
+ '/'.$font_properties->{'file'}.'.pfb" ';
+ }
+ $gnuplot_input .= ' "'.$font_properties->{'printname'}.'" ';
+ $gnuplot_input .= $fontsize;
+ $gnuplot_input .= "\nset output \"/home/httpd/perl/tmp/".
+ &unescape($filename).".eps\"\n";
+ }
+ # cartesian or polar plot?
+ if (lc($Apache::lonplot::plot{'plottype'}) eq 'polar') {
+ $gnuplot_input .= 'set polar'.$/;
+ } else {
+ # Assume Cartesian
+ }
+ # cartesian or polar grid?
+ if (lc($Apache::lonplot::plot{'gridtype'}) eq 'polar') {
+ $gnuplot_input .= 'set grid polar'.$/;
+ } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'linear-log') {
+ $gnuplot_input .= 'set logscale x'.$/;
+ } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'log-linear') {
+ $gnuplot_input .= 'set logscale y'.$/;
+ } elsif (lc($Apache::lonplot::plot{'gridtype'}) eq 'log-log') {
+ $gnuplot_input .= 'set logscale x'.$/;
+ $gnuplot_input .= 'set logscale y'.$/;
+ } else {
+ # Assume Cartesian
+ }
+ # solid or pattern for boxes?
+ if (lc($Apache::lonplot::plot{'fillstyle'}) eq 'solid') {
+ $gnuplot_input .= 'set style fill solid '.
+ $Apache::lonplot::plot{'solid'}.$Apache::lonplot::plot{'box_border'}.$/;
+ } elsif (lc($Apache::lonplot::plot{'fillstyle'}) eq 'pattern') {
+ $gnuplot_input .= 'set style fill pattern '.$Apache::lonplot::plot{'pattern'}.$Apache::lonplot::plot{'box_border'}.$/;
+ } elsif (lc($Apache::lonplot::plot{'fillstyle'}) eq 'empty') {
+ }
+ # margin
+ if (lc($Apache::lonplot::plot{'lmargin'}) ne 'default') {
+ $gnuplot_input .= 'set lmargin '.$Apache::lonplot::plot{'lmargin'}.$/;
+ }
+ if (lc($Apache::lonplot::plot{'rmargin'}) ne 'default') {
+ $gnuplot_input .= 'set rmargin '.$Apache::lonplot::plot{'rmargin'}.$/;
+ }
+ if (lc($Apache::lonplot::plot{'tmargin'}) ne 'default') {
+ $gnuplot_input .= 'set tmargin '.$Apache::lonplot::plot{'tmargin'}.$/;
+ }
+ if (lc($Apache::lonplot::plot{'bmargin'}) ne 'default') {
+ $gnuplot_input .= 'set bmargin '.$Apache::lonplot::plot{'bmargin'}.$/;
+ }
+
+ # tic scales
+ if ($version > 4) {
+ $gnuplot_input .= 'set tics scale '.
+ $Apache::lonplot::plot{'major_ticscale'}.', '.$Apache::lonplot::plot{'minor_ticscale'}.$/;
+ } else {
+ $gnuplot_input .= 'set ticscale '.
+ $Apache::lonplot::plot{'major_ticscale'}.' '.$Apache::lonplot::plot{'minor_ticscale'}.$/;
}
+ #boxwidth
+ if (lc($Apache::lonplot::plot{'boxwidth'}) ne '') {
+ $gnuplot_input .= 'set boxwidth '.$Apache::lonplot::plot{'boxwidth'}.$/;
+ }
+ # gridlayer
+ $gnuplot_input .= 'set grid noxtics noytics front '.$/
+ if ($Apache::lonplot::plot{'gridlayer'} eq 'on');
+
# grid
- $gnuplot_input .= 'set grid'.$/ if ($plot{'grid'} eq 'on');
+ $gnuplot_input .= 'set grid'.$/ if ($Apache::lonplot::plot{'grid'} eq 'on');
# border
- $gnuplot_input .= ($plot{'border'} eq 'on'?
+ $gnuplot_input .= ($Apache::lonplot::plot{'border'} eq 'on'?
'set border'.$/ :
'set noborder'.$/ );
# 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
# titles
- $gnuplot_input .= "set title \"$title\"\n" if (defined($title)) ;
- $gnuplot_input .= "set xlabel \"$xlabel\"\n" if (defined($xlabel));
- $gnuplot_input .= "set ylabel \"$ylabel\"\n" if (defined($ylabel));
+ my $extra_space_x = ($xtics{'location'} eq 'axis') ? ' 0, -0.5 ' : '';
+ my $extra_space_y = ($ytics{'location'} eq 'axis') ? ' -0.5, 0 ' : '';
+
+ if ($target eq 'tex') {
+ $gnuplot_input .= "set title \"$title\" font \"".$font_properties->{'printname'}.",".$fontsize."pt\"\n" if (defined($title)) ;
+ $gnuplot_input .= "set xlabel \"$xlabel\" $extra_space_x font \"".$font_properties->{'printname'}.",".$fontsize."pt\"\n" if (defined($xlabel));
+ $gnuplot_input .= "set ylabel \"$ylabel\" $extra_space_y font \"".$font_properties->{'printname'}.",".$fontsize."pt\"\n" if (defined($ylabel));
+ } else {
+ $gnuplot_input .= "set title \"$title\" \n" if (defined($title)) ;
+ $gnuplot_input .= "set xlabel \"$xlabel\" $extra_space_x \n" if (defined($xlabel));
+ $gnuplot_input .= "set ylabel \"$ylabel\" $extra_space_y \n" if (defined($ylabel));
+ }
# tics
if (%xtics) {
$gnuplot_input .= "set xtics $xtics{'location'} ";
@@ -1030,6 +1376,9 @@ sub write_gnuplot_file {
$gnuplot_input .= "$xtics{'start'}, ";
$gnuplot_input .= "$xtics{'increment'}, ";
$gnuplot_input .= "$xtics{'end'}\n";
+ if ($xtics{'minorfreq'} != 0) {
+ $gnuplot_input .= "set mxtics ".$xtics{'minorfreq'}."\n";
+ }
}
if (%ytics) {
$gnuplot_input .= "set ytics $ytics{'location'} ";
@@ -1037,9 +1386,28 @@ sub write_gnuplot_file {
$gnuplot_input .= "$ytics{'start'}, ";
$gnuplot_input .= "$ytics{'increment'}, ";
$gnuplot_input .= "$ytics{'end'}\n";
+ if ($ytics{'minorfreq'} != 0) {
+ $gnuplot_input .= "set mytics ".$ytics{'minorfreq'}."\n";
+ }
}
# axis
if (%axis) {
+ if ($axis{'xformat'} ne 'on') {
+ $gnuplot_input .= "set format x ";
+ if ($axis{'xformat'} eq 'off') {
+ $gnuplot_input .= "\"\"\n";
+ } else {
+ $gnuplot_input .= "\"\%.".$axis{'xformat'}."\"\n";
+ }
+ }
+ if ($axis{'yformat'} ne 'on') {
+ $gnuplot_input .= "set format y ";
+ if ($axis{'yformat'} eq 'off') {
+ $gnuplot_input .= "\"\"\n";
+ } else {
+ $gnuplot_input .= "\"\%.".$axis{'yformat'}."\"\n";
+ }
+ }
$gnuplot_input .= "set xrange \[$axis{'xmin'}:$axis{'xmax'}\]\n";
$gnuplot_input .= "set yrange \[$axis{'ymin'}:$axis{'ymax'}\]\n";
}
@@ -1057,23 +1425,35 @@ sub write_gnuplot_file {
my $label;
foreach $label (@labels) {
$gnuplot_input .= 'set label "'.$label->{'text'}.'" at '.
- $label->{'xpos'}.','.$label->{'ypos'}.' '.$label->{'justify'}.$/ ;
+ $label->{'xpos'}.','.$label->{'ypos'};
+ if ($label->{'rotate'} ne '') {
+ $gnuplot_input .= ' rotate by '.$label->{'rotate'};
+ }
+ $gnuplot_input .= ' '.$label->{'justify'};
+
+ if ($target eq 'tex') {
+ $gnuplot_input .=' font "'.$font_properties->{'printname'}.','.$fontsize.'pt"' ;
+ }
+ $gnuplot_input .= $/;
}
if ($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";
- }
+ }
# curves
$gnuplot_input .= 'plot ';
for (my $i = 0;$i<=$#curves;$i++) {
$curve = $curves[$i];
$gnuplot_input.= ', ' if ($i > 0);
+ if ($target eq 'tex') {
+ $curve->{'linewidth'} *= 2;
+ }
if (exists($curve->{'function'})) {
$gnuplot_input.=
$curve->{'function'}.' title "'.
$curve->{'name'}.'" with '.
$curve->{'linestyle'};
- $gnuplot_input.= ' linewidth 4 ' if ($target eq 'tex');
+
if (($curve->{'linestyle'} eq 'points') ||
($curve->{'linestyle'} eq 'linespoints') ||
($curve->{'linestyle'} eq 'errorbars') ||
@@ -1082,7 +1462,11 @@ sub write_gnuplot_file {
($curve->{'linestyle'} eq 'xyerrorbars')) {
$gnuplot_input.=' pointtype '.$curve->{'pointtype'};
$gnuplot_input.=' pointsize '.$curve->{'pointsize'};
+ } elsif ($curve->{'linestyle'} eq 'filledcurves') {
+ $gnuplot_input.= ' '.$curve->{'limit'};
}
+ $gnuplot_input.= ' linewidth '.$curve->{'linewidth'};
+
} elsif (exists($curve->{'data'})) {
# Store data values in $datatext
my $datatext = '';
@@ -1101,12 +1485,11 @@ sub write_gnuplot_file {
}
# write file
print $fh $datatext;
- close ($fh);
+ close($fh);
# generate gnuplot text
$gnuplot_input.= '"'.$datafilename.'" title "'.
$curve->{'name'}.'" with '.
$curve->{'linestyle'};
- $gnuplot_input.= ' linewidth 4 ' if ($target eq 'tex');
if (($curve->{'linestyle'} eq 'points') ||
($curve->{'linestyle'} eq 'linespoints') ||
($curve->{'linestyle'} eq 'errorbars') ||
@@ -1115,11 +1498,15 @@ sub write_gnuplot_file {
($curve->{'linestyle'} eq 'xyerrorbars')) {
$gnuplot_input.=' pointtype '.$curve->{'pointtype'};
$gnuplot_input.=' pointsize '.$curve->{'pointsize'};
+ } elsif ($curve->{'linestyle'} eq 'filledcurves') {
+ $gnuplot_input.= ' '.$curve->{'limit'};
}
+ $gnuplot_input.= ' linewidth '.$curve->{'linewidth'};
}
}
# Write the output to a file.
- my $fh=Apache::File->new(">$tmpdir$filename.data");
+ open (my $fh,">$tmpdir$filename.data");
+ binmode($fh, ":utf8");
print $fh $gnuplot_input;
close($fh);
# That's all folks.
@@ -1130,7 +1517,7 @@ sub write_gnuplot_file {
sub check_inputs {
## Note: no inputs, no outputs - this acts only on global variables.
## 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 (! %axis) { &set_defaults(\%axis,\%axis_defaults); }
if (! defined($title )) {} # No title for this plot, thats okay
@@ -1144,7 +1531,7 @@ sub check_inputs {
my $curve;
foreach $curve (@curves) {
if (!defined($curve->{'function'})&&!defined($curve->{'data'})){
- &Apache::lonxml::warning("One of the curves specified did not contain any <data> or <function> declarations\n");
+ &Apache::lonxml::warning("One of the curves specified did not contain any curve data or curve function declarations\n");
return '';
}
}
@@ -1168,10 +1555,10 @@ sub edit_attributes {
($description,$attr,$token,
$defaults->{$attr}->{'size'});
} 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);
} elsif ($defaults->{$attr}->{'edit_type'} eq 'onoff') {
- $result .= &Apache::edit::select_arg
+ $result .= &Apache::edit::select_or_text_arg
($description,$attr,['on','off'],$token);
}
$result .= '<br />';
@@ -1291,40 +1678,6 @@ sub insert_data {
}
##----------------------------------------------------------------------
-# Javascript functions to display help for tags
-
-sub make_javascript {
- my $helpwindowwidth = 400;
- my $helpwindowheight = 400;
- my $result = '';
- $result.=<<"ENDFUNCTION";
-<script language="JavaScript">
-function openWin(text)
-{
- newWin = open("", "new_W", "width=$helpwindowwidth,height=$helpwindowheight,resizable=1,scrollbars=1");
- newWin.document.open("text/html", "replace");
- newWin.document.writeln(text);
- newWin.document.writeln('<center><a href=\"javascript:window.close()\">close this window</a></center>');
- newWin.document.close();
-}
-</script>
-ENDFUNCTION
- return $result;
-}
-
-sub help_win {
- my ($helptext)=@_;
- $helptext =~ s/\n/ /g;
- $helptext =~ s/\'/\\\'/g;
- my $result = '';
- $result.=<<"ENDWIN";
-<table width="100%"><tr><td align="right">
-<a href="javascript:openWin('$helptext')">help</a>
-</td></tr></table><hr />
-ENDWIN
- return $result;
-}
-##----------------------------------------------------------------------
1;
__END__