--- loncom/xml/lonplot.pm 2002/03/22 20:05:19 1.63
+++ loncom/xml/lonplot.pm 2002/04/25 20:39:50 1.72
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Dynamic plot
#
-# $Id: lonplot.pm,v 1.63 2002/03/22 20:05:19 albertel Exp $
+# $Id: lonplot.pm,v 1.72 2002/04/25 20:39:50 matthew Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -104,7 +104,7 @@ my $onoff_test = sub {$_[0]=~/^(on|o
my $key_pos_test = sub {$_[0]=~/^(top|bottom|right|left|outside|below| )+$/};
my $sml_test = sub {$_[0]=~/^(small|medium|large)$/};
my $linestyle_test = sub {exists($linestyles{$_[0]})};
-my $words_test = sub {$_[0]=~s/\s+/ /g;$_[0]=~/^([\w\(\)]+ ?)+$/};
+my $words_test = sub {$_[0]=~s/\s+/ /g;$_[0]=~/^([\w~!\@\#\$\%^&\*\(\)-=_\+\[\]\{\}:\;\'<>,\.\/\?\\]+ ?)+$/};
###################################################################
## ##
@@ -112,7 +112,7 @@ my $words_test = sub {$_[0]=~s/\s+/
## ##
###################################################################
my @gnuplot_edit_order =
- qw/bgcolor fgcolor height width font transparent grid border align/;
+ qw/alttag bgcolor fgcolor height width font transparent grid border align/;
my $gnuplot_help_text = <<"ENDPLOTHELP";
<p>
@@ -148,15 +148,22 @@ ENDPLOTHELP
my %gnuplot_defaults =
(
+ alttag => {
+ default => 'dynamically generated plot',
+ test => $words_test,
+ description => 'brief description of the plot',
+ edit_type => 'entry',
+ size => '40'
+ },
height => {
- default => 200,
+ default => 300,
test => $int_test,
description => 'height of image (pixels)',
edit_type => 'entry',
size => '10'
},
width => {
- default => 200,
+ default => 400,
test => $int_test,
description => 'width of image (pixels)',
edit_type => 'entry',
@@ -183,7 +190,7 @@ my %gnuplot_defaults =
edit_type => 'onoff'
},
grid => {
- default => 'off',
+ default => 'on',
test => $onoff_test,
description => 'Display grid',
edit_type => 'onoff'
@@ -202,7 +209,7 @@ my %gnuplot_defaults =
choices => ['small','medium','large']
},
align => {
- default => 'left',
+ default => 'center',
test => sub {$_[0]=~/^(left|right|center)$/},
description => 'alignment for image in html',
edit_type => 'choice',
@@ -299,6 +306,7 @@ my %tic_defaults =
},
);
+my @axis_edit_order = ('color','xmin','xmax','ymin','ymax');
my %axis_defaults =
(
color => {
@@ -476,23 +484,22 @@ sub end_gnuplot {
## Determine filename
my $tmpdir = '/home/httpd/perl/tmp/';
my $filename = $ENV{'user.name'}.'_'.$ENV{'user.domain'}.
- '_'.time.'_'.$$.$randnumber.'_plot.data';
+ '_'.time.'_'.$$.$randnumber.'_plot';
## Write the plot description to the file
&write_gnuplot_file($tmpdir,$filename,$target);
$filename = &Apache::lonnet::escape($filename);
## return image tag for the plot
if ($target eq 'web') {
$result .= <<"ENDIMAGE";
-<img src = "/cgi-bin/plot.gif?file=$filename&output=gif"
- width = "$plot{'width'}"
+<img src = "/cgi-bin/plot.gif?file=$filename.data&output=gif"
+ width = "$plot{'width'}"
height = "$plot{'height'}"
align = "$plot{'align'}"
- alt = "image should be /cgi-bin/plot.gif?$filename" />
+ alt = "$plot{'alttag'}" />
ENDIMAGE
} elsif ($target eq 'tex') {
- &Apache::lonnet::ssi('cgi-bin/plot.gif?file=$filename'.
- '&output=eps');
- $result = "$filename.eps";
+ &Apache::lonnet::ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps");
+ $result = '\\\\ \graphicspath{/home/httpd/perl/tmp/}\fbox{\includegraphics[width=9.0 cm]{'.&Apache::lonnet::unescape($filename).'.eps}} \\\\';
}
} elsif ($target eq 'edit') {
$result.=&Apache::edit::tag_end($target,$token);
@@ -899,7 +906,8 @@ sub start_axis {
$tagstack->[-1]);
} elsif ($target eq 'edit') {
$result .= &Apache::edit::tag_start($target,$token,'Plot Axes');
- $result .= &edit_attributes($target,$token,\%axis_defaults);
+ $result .= &edit_attributes($target,$token,\%axis_defaults,
+ \@axis_edit_order);
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args
($token,$parstack,$safeeval,keys(%axis_defaults));
@@ -983,14 +991,16 @@ sub write_gnuplot_file {
$gnuplot_input .= "set output\n";
} elsif ($target eq 'tex') {
$gnuplot_input .= "set term postscript eps monochrome\n";
- $gnuplot_input .= "set output \"$filename.eps\"\n";
+ $gnuplot_input .= "set output \"/home/httpd/perl/tmp/".
+ &Apache::lonnet::unescape($filename).".eps\"\n";
}
# grid
$gnuplot_input .= 'set grid'.$/ if ($plot{'grid'} eq 'on');
# border
$gnuplot_input .= ($plot{'border'} eq 'on'?
'set border'.$/ :
- 'set noborder'.$/ ); # title, xlabel, ylabel
+ 'set noborder'.$/ );
+ # title, xlabel, ylabel
# titles
$gnuplot_input .= "set title \"$title\"\n" if (defined($title)) ;
$gnuplot_input .= "set xlabel \"$xlabel\"\n" if (defined($xlabel));
@@ -1019,7 +1029,7 @@ sub write_gnuplot_file {
if (%key) {
$gnuplot_input .= 'set key '.$key{'pos'}.' ';
if ($key{'title'} ne '') {
- $gnuplot_input .= 'title " '.$key{'title'}.'" ';
+ $gnuplot_input .= 'title "'.$key{'title'}.'" ';
}
$gnuplot_input .= ($key{'box'} eq 'on' ? 'box ' : 'nobox ').$/;
} else {
@@ -1040,11 +1050,8 @@ sub write_gnuplot_file {
$gnuplot_input.=
$curve->{'function'}.' title "'.
$curve->{'name'}.'" with '.
- $curve->{'linestyle'};
-#
-# gnuplot's term=gif driver does not handle linewidths :(
-# . ' linewidth '. $curve->{'linewidth'};
-#
+ $curve->{'linestyle'};
+ $gnuplot_input.= ' linewidth 2 ' if ($target eq 'tex');
if (($curve->{'linestyle'} eq 'points') ||
($curve->{'linestyle'} eq 'linespoints') ||
($curve->{'linestyle'} eq 'errorbars') ||
@@ -1058,7 +1065,7 @@ sub write_gnuplot_file {
# Store data values in $datatext
my $datatext = '';
# get new filename
- my $datafilename = "$tmpdir/$filename.$i";
+ my $datafilename = "$tmpdir/$filename.data.$i";
my $fh=Apache::File->new(">$datafilename");
# Compile data
my @Data = @{$curve->{'data'}};
@@ -1077,6 +1084,7 @@ sub write_gnuplot_file {
$gnuplot_input.= '"'.$datafilename.'" title "'.
$curve->{'name'}.'" with '.
$curve->{'linestyle'};
+ $gnuplot_input.= ' linewidth 2 ' if ($target eq 'tex');
if (($curve->{'linestyle'} eq 'points') ||
($curve->{'linestyle'} eq 'linespoints') ||
($curve->{'linestyle'} eq 'errorbars') ||
@@ -1089,7 +1097,7 @@ sub write_gnuplot_file {
}
}
# Write the output to a file.
- my $fh=Apache::File->new(">$tmpdir$filename");
+ my $fh=Apache::File->new(">$tmpdir$filename.data");
print $fh $gnuplot_input;
close($fh);
# That's all folks.