--- loncom/xml/lonplot.pm 2003/02/07 22:03:21 1.81 +++ loncom/xml/lonplot.pm 2004/03/08 17:31:37 1.95 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Dynamic plot # -# $Id: lonplot.pm,v 1.81 2003/02/07 22:03:21 albertel Exp $ +# $Id: lonplot.pm,v 1.95 2004/03/08 17:31:37 www Exp $ # # Copyright Michigan State University Board of Trustees # @@ -34,6 +34,8 @@ package Apache::lonplot; use strict; +use warnings FATAL=>'all'; +no warnings 'uninitialized'; use Apache::File; use Apache::response; use Apache::lonxml; @@ -112,7 +114,8 @@ my $words_test = sub {$_[0]=~s/\s+/ ## ## ################################################################### my @gnuplot_edit_order = - qw/alttag bgcolor fgcolor height width font transparent grid samples border align/; + qw/alttag bgcolor fgcolor height width font transparent grid samples + border align texwidth texfont plottype/; my $gnuplot_help_text = <<"ENDPLOTHELP";
@@ -221,7 +224,28 @@ my %gnuplot_defaults = description => 'alignment for image in html', edit_type => 'choice', choices => ['left','right','center'] - } + }, + texwidth => { + default => '93', + test => $int_test, + description => 'Width of plot when printed (mm)', + edit_type => 'entry', + size => '5' + }, + texfont => { + default => '22', + test => $int_test, + description => 'Font size to use in TeX output (pts):', + edit_type => 'choice', + choices => [qw/10 12 14 16 18 20 22 24 26 28 30 32 34 36/], + }, + plottype => { + default => 'Cartesian', + test => sub {$_[0]=~/^(Polar|Cartesian)$/}, + description => 'Plot type:', + edit_type => 'choice', + choices => ['Cartesian','Polar'] + }, ); my %key_defaults = @@ -274,43 +298,51 @@ my %label_defaults = } ); -my @tic_edit_order = ('location','mirror','start','increment','end'); +my @tic_edit_order = ('location','mirror','start','increment','end', + 'minorfreq'); my %tic_defaults = ( location => { default => 'border', test => sub {$_[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 => $int_test, + description => 'Number of minor tics between major tic marks', + edit_type => 'entry', + size => '10' + }, ); my @axis_edit_order = ('color','xmin','xmax','ymin','ymax'); @@ -369,7 +401,7 @@ required. Unfortunately, you must make in the order gnuplot expects the data.
Specifying the data should usually be done with a perl variable or array, -such as \@Xdata and \@Ydata. You may also specify numerical data seperated +such as \@Xdata and \@Ydata. You may also specify numerical data separated by commas. Again, the order of the data tags is important. The first tag will be the X data and the second will be the Y data.
@@ -441,10 +473,10 @@ my %curve_defaults = my (%plot,%key,%axis,$title,$xlabel,$ylabel,@labels,@curves,%xtics,%ytics); sub start_gnuplot { - %plot = (); %key = (); %axis = (); - $title = undef; $xlabel = undef; $ylabel = undef; - $#labels = -1; $#curves = -1; - %xtics = (); %ytics = (); + undef(%plot); undef(%key); undef(%axis); + undef($title); undef($xlabel); undef($ylabel); + undef(@labels); undef(@curves); + undef(%xtics); undef(%ytics); # my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; my $result=''; @@ -480,7 +512,7 @@ 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') { $randnumber=int(rand(1000)); @@ -505,8 +537,9 @@ sub end_gnuplot { alt = "$plot{'alttag'}" /> ENDIMAGE } elsif ($target eq 'tex') { - &Apache::lonnet::ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps"); - $result = '\graphicspath{{/home/httpd/perl/tmp/}}\includegraphics{'.&Apache::lonnet::unescape($filename).'.eps}'; + #might be inside the safe space, register the URL for later + &Apache::lonxml::register_ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps"); + $result = '\graphicspath{{/home/httpd/perl/tmp/}}\includegraphics[width='.$plot{'texwidth'}.' mm]{'.&Apache::lonnet::unescape($filename).'.eps}'; } } elsif ($target eq 'edit') { $result.=&Apache::edit::tag_end($target,$token); @@ -626,9 +659,8 @@ sub start_title { &Apache::edit::start_spanning_row(). &Apache::edit::editline('',$text,'',60); } elsif ($target eq 'modified') { - my $text=$$parser[-1]->get_text("/title"); $result.=&Apache::edit::rebuild_tag($token); - $result.=&Apache::edit::modifiedfield($token); + $result.=&Apache::edit::modifiedfield("/title",$parser); } return $result; } @@ -660,9 +692,8 @@ sub start_xlabel { &Apache::edit::start_spanning_row(). &Apache::edit::editline('',$text,'',60); } elsif ($target eq 'modified') { - my $text=$$parser[-1]->get_text("/xlabel"); $result.=&Apache::edit::rebuild_tag($token); - $result.=&Apache::edit::modifiedfield($token); + $result.=&Apache::edit::modifiedfield("/xlabel",$parser); } return $result; } @@ -695,9 +726,8 @@ sub start_ylabel { &Apache::edit::start_spanning_row(). &Apache::edit::editline('',$text,'',60); } elsif ($target eq 'modified') { - my $text=$$parser[-1]->get_text("/ylabel"); $result.=&Apache::edit::rebuild_tag($token); - $result.=&Apache::edit::modifiedfield($token); + $result.=&Apache::edit::modifiedfield("/ylabel",$parser); } return $result; } @@ -737,8 +767,7 @@ sub start_label { &Apache::edit::get_new_args ($token,$parstack,$safeeval,keys(%label_defaults)); $result.=&Apache::edit::rebuild_tag($token); - my $text=$$parser[-1]->get_text("/label"); - $result.=&Apache::edit::modifiedfield($token); + $result.=&Apache::edit::modifiedfield("/label",$parser); } return $result; } @@ -798,7 +827,11 @@ sub start_function { my $result=''; if ($target eq 'web' || $target eq 'tex') { if (exists($curves[-1]->{'data'})) { - &Apache::lonxml::warning('Use of