--- loncom/xml/lonplot.pm 2007/09/05 13:38:18 1.118.2.1 +++ loncom/xml/lonplot.pm 2007/08/04 00:01:52 1.127 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Dynamic plot # -# $Id: lonplot.pm,v 1.118.2.1 2007/09/05 13:38:18 albertel Exp $ +# $Id: lonplot.pm,v 1.127 2007/08/04 00:01:52 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -117,7 +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~!\@\#\$\%^&\*\(\)-=_\+\[\]\{\}:\;\'<>,\.\/\?\\]+ ?)+$/}; @@ -127,8 +127,9 @@ my $words_test = sub {$_[0]=~s/\s+/ ## ## ################################################################### my @gnuplot_edit_order = - qw/alttag bgcolor fgcolor height width font transparent grid samples - border align texwidth texfont plotcolor plottype gridtype lmargin rmargin + 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/; @@ -139,35 +140,35 @@ 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' }, @@ -203,12 +204,19 @@ my %gnuplot_defaults = edit_type => 'onoff' }, font => { - default => 'medium', + default => '9', test => $sml_test, - description => 'Size of font to use', + description => 'Font size to use in web output (pts)', edit_type => 'choice', - choices => ['small','medium','large'] + choices => [['5','5 (small)'],'6','7','8',['9','9 (medium)'],'10',['11','11 (large)'],'12','15'] }, + fontface => { + default => 'sans-serif', + test => sub {$_[0]=~/^(sans-serif|serif|classic)$/}, + description => 'Type of font to use', + edit_type => 'choice', + choices => ['sans-serif','serif', 'classic'] + }, samples => { default => '100', test => $int_test, @@ -219,7 +227,7 @@ my %gnuplot_defaults = align => { default => 'middle', test => sub {$_[0]=~/^(left|right|middle|center)$/}, - description => 'alignment for image in html', + description => 'Alignment for image in HTML', edit_type => 'choice', choices => ['left','right','middle'] }, @@ -247,7 +255,7 @@ my %gnuplot_defaults = pattern => { default => '', test => $int_test, - description => 'pattern value for boxes:', + description => 'Pattern value for boxes:', edit_type => 'choice', choices => [0,1,2,3,4,5,6] }, @@ -310,7 +318,7 @@ my %gnuplot_defaults = boxwidth => { default => '', test => $real_test, - description => 'width of boxes default auto', + description => 'Width of boxes, default is auto', edit_type => 'entry', size => '5' }, @@ -348,7 +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'] @@ -360,14 +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' }, @@ -394,7 +402,7 @@ my %tic_defaults = mirror => { default => 'on', test => $onoff_test, - description => 'mirror tics on opposite axis?', + description => 'Mirror tics on opposite axis?', edit_type => 'onoff' }, start => { @@ -433,35 +441,35 @@ 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' } @@ -474,14 +482,14 @@ 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' }, @@ -493,7 +501,7 @@ my %curve_defaults = choices => [keys(%linestyles)] }, linewidth => { - default => 4, + default => 2, test => $int_test, description => 'Line width (may not apply to all line styles)', edit_type => 'choice', @@ -502,21 +510,21 @@ my %curve_defaults = 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', + description => 'Point to fill -- for filledcurves', edit_type => 'choice', choices => ['closed','x1','x2','y1','y2'] }, @@ -673,6 +681,51 @@ 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 { @@ -704,6 +757,12 @@ sub end_key { return $result; } +sub gnuplot_protect { + my ($string) = @_; + $string =~ s{([_^&~\{\}]|\\\\)}{\\\\$1}g; + return $string; +} + ##------------------------------------------------------------------- title sub start_title { my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; @@ -715,6 +774,7 @@ sub start_title { if (length($title) > $max_str_len) { $title = substr($title,0,$max_str_len); } + $title = &gnuplot_protect($title); } elsif ($target eq 'edit') { $result.=&Apache::edit::tag_start($target,$token,'Plot Title'); my $text=&Apache::lonxml::get_all_text("/title",$parser,$style); @@ -746,6 +806,7 @@ sub start_xlabel { if (length($xlabel) > $max_str_len) { $xlabel = substr($xlabel,0,$max_str_len); } + $xlabel = &gnuplot_protect($xlabel); } elsif ($target eq 'edit') { $result.=&Apache::edit::tag_start($target,$token,'Plot Xlabel'); my $text=&Apache::lonxml::get_all_text("/xlabel",$parser,$style); @@ -778,6 +839,7 @@ sub start_ylabel { if (length($ylabel) > $max_str_len) { $ylabel = substr($ylabel,0,$max_str_len); } + $ylabel = &gnuplot_protect($ylabel); } elsif ($target eq 'edit') { $result .= &Apache::edit::tag_start($target,$token,'Plot Ylabel'); my $text = &Apache::lonxml::get_all_text("/ylabel",$parser,$style); @@ -811,7 +873,7 @@ sub start_label { $text = &Apache::run::evaluate($text,$safeeval,$$parstack[-1]); $text =~ s/\n/ /g; $text = substr($text,0,$max_str_len) if (length($text) > $max_str_len); - $label{'text'} = $text; + $label{'text'} = &gnuplot_protect($text); push(@labels,\%label); } elsif ($target eq 'edit') { $result .= &Apache::edit::tag_start($target,$token,'Plot Label'); @@ -1068,9 +1130,9 @@ sub get_attributes{ ##------------------------------------------------------- write_gnuplot_file sub write_gnuplot_file { my ($tmpdir,$filename,$target)= @_; + my ($fontsize, $font_properties) = &get_font($target); my $gnuplot_input = ''; my $curve; - my $pt = $Apache::lonplot::plot{'texfont'}; # # Check to be sure we do not have any empty curves my @curvescopy; @@ -1101,16 +1163,25 @@ sub write_gnuplot_file { } # set term if ($target eq 'web') { - $gnuplot_input .= 'set term '.$weboutputformat .' '; + $gnuplot_input .= 'set terminal png enhanced nocrop '; $gnuplot_input .= 'transparent ' if ($Apache::lonplot::plot{'transparent'} eq 'on'); - $gnuplot_input .= $Apache::lonplot::plot{'font'} . ' '; - $gnuplot_input .= 'size '.$Apache::lonplot::plot{'width'}.','.$Apache::lonplot::plot{'height'}.' '; + $gnuplot_input .= 'font "'.$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 $Apache::lonplot::plot{'plotcolor'} solid \"Helvetica\" $pt \n"; - $gnuplot_input .= "set output \"/home/httpd/perl/tmp/". + $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? @@ -1174,14 +1245,17 @@ sub write_gnuplot_file { $gnuplot_input .= "set samples $Apache::lonplot::plot{'samples'}\n"; # title, xlabel, ylabel # titles + 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 \"Helvetica,".$pt."pt\"\n" if (defined($title)) ; - $gnuplot_input .= "set xlabel \"$xlabel\" font \"Helvetica,".$pt."pt\" \n" if (defined($xlabel)); - $gnuplot_input .= "set ylabel \"$ylabel\" font \"Helvetica,".$pt."pt\"\n" if (defined($ylabel)); + $gnuplot_input .= "set title \"$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\" \n" if (defined($xlabel)); - $gnuplot_input .= "set ylabel \"$ylabel\" \n" if (defined($ylabel)); + $gnuplot_input .= "set title \"$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) { @@ -1225,14 +1299,14 @@ sub write_gnuplot_file { $gnuplot_input .= 'set label "'.$label->{'text'}.'" at '. $label->{'xpos'}.','.$label->{'ypos'}.' '.$label->{'justify'}; if ($target eq 'tex') { - $gnuplot_input .=' font "Helvetica,'.$pt.'pt"' ; + $gnuplot_input .=' font "'.$font_properties->{'printname'}.','.$fontsize.'pt"' ; } $gnuplot_input .= $/; } if ($target eq 'tex') { $gnuplot_input .="set size 1,".$Apache::lonplot::plot{'height'}/$Apache::lonplot::plot{'width'}*1.38; $gnuplot_input .="\n"; - } + } # curves $gnuplot_input .= 'plot '; for (my $i = 0;$i<=$#curves;$i++) { @@ -1277,7 +1351,7 @@ sub write_gnuplot_file { } # write file print $fh $datatext; - close ($fh); + close($fh); # generate gnuplot text $gnuplot_input.= '"'.$datafilename.'" title "'. $curve->{'name'}.'" with '.