--- loncom/xml/lonplot.pm 2001/12/21 21:39:51 1.16
+++ loncom/xml/lonplot.pm 2001/12/27 22:30:01 1.20
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Dynamic plot
#
-# $Id: lonplot.pm,v 1.16 2001/12/21 21:39:51 matthew Exp $
+# $Id: lonplot.pm,v 1.20 2001/12/27 22:30:01 matthew Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -26,15 +26,14 @@
# http://www.lon-capa.org/
#
# 12/15/01 Matthew
-# 12/17 12/18 12/19 12/20 12/21 Matthew
+# 12/17 12/18 12/19 12/20 12/21 12/27 Matthew
package Apache::lonplot;
use strict;
use Apache::File;
use Apache::response;
use Apache::lonxml;
-
-use Digest::MD5 qw(md5_base64);
+use Apache::edit;
sub BEGIN {
&Apache::lonxml::register('Apache::lonplot',('plot'));
@@ -53,6 +52,7 @@ sub BEGIN {
## grid
## border
## font
+## align
##
## @labels: $labels[$i] = \%label
## %label: text, xpos, ypos, justify
@@ -68,7 +68,8 @@ sub BEGIN {
## Tests used in checking the validitity of input
##
my $int_test = sub {$_[0]=~s/\s+//g;$_[0]=~/^\d+$/};
-my $real_test = sub {$_[0]=~s/\s+//g;$_[0]=~/^[+-]?\d*\.?\d*$/};
+my $real_test =
+ sub {$_[0]=~s/\s+//g;$_[0]=~/^[+-]?\d*\.?\d*([eE][+-]\d+)?$/};
my $color_test = sub {$_[0]=~s/\s+//g;$_[0]=~/^x[\da-f]{6}$/};
my $onoff_test = sub {$_[0]=~/^(on|off)$/};
my $key_pos_test = sub {$_[0]=~/^(top|bottom|right|left|outside|below| )+$/};
@@ -76,51 +77,177 @@ my $sml_test = sub {$_[0]=~/^(smal
my $linestyle_test = sub {$_[0]=~/^(lines|linespoints|dots|points|steps)$/};
my $words_test = sub {$_[0]=~s/\s+/ /g;$_[0]=~/^([\w\(\)]+ ?)+$/};
##
-## Default values for attributes of elements
+## Attribute metadata
##
my %plot_defaults =
(
- height => {default => 200, test => $int_test },
- width => {default => 200, test => $int_test },
- bgcolor => {default => 'xffffff', test => $color_test },
- fgcolor => {default => 'x000000', test => $color_test },
- transparent => {default => 'off', test => $onoff_test },
- grid => {default => 'off', test => $onoff_test },
- border => {default => 'on', test => $onoff_test },
- font => {default => 'medium', test => $sml_test },
- align => {default => 'left', test => $words_test }
+ height => {
+ default => 200,
+ test => $int_test,
+ description => 'vertical size of image (pixels)',
+ edit_type => 'entry'
+ },
+ width => {
+ default => 200,
+ test => $int_test,
+ description => 'horizontal size of image (pixels)',
+ edit_type => 'entry'
+ },
+ bgcolor => {
+ default => 'xffffff',
+ test => $color_test,
+ description => 'background color of image (xffffff)',
+ edit_type => 'entry'
+ },
+ fgcolor => {
+ default => 'x000000',
+ test => $color_test,
+ description => 'foreground color of image (x000000)',
+ edit_type => 'entry'
+ },
+ transparent => {
+ default => 'off',
+ test => $onoff_test,
+ description => '',
+ edit_type => 'on_off'
+ },
+ grid => {
+ default => 'off',
+ test => $onoff_test,
+ description => '',
+ edit_type => 'on_off'
+ },
+ border => {
+ default => 'on',
+ test => $onoff_test,
+ description => '',
+ edit_type => 'on_off'
+ },
+ font => {
+ default => 'medium',
+ test => $sml_test,
+ description => 'Size of font to use',
+ edit_type => 'choice',
+ choices => ['small','medium','large']
+ },
+ align => {
+ default => 'left',
+ test => sub {$_[0]=~/^(left|right|center)$/},
+ description => 'alignment for image in html',
+ edit_type => 'choice',
+ choices => ['left','right','center']
+ }
);
my %key_defaults =
(
- title => { default => '', test => $words_test },
- box => { default => 'off', test => $onoff_test },
- pos => { default => 'top right', test => $key_pos_test }
+ title => {
+ default => '',
+ test => $words_test,
+ description => 'Title of key',
+ edit_type => 'entry'
+ },
+ box => {
+ default => 'off',
+ test => $onoff_test,
+ description => 'Draw a box around the key?',
+ edit_type => 'on_off'
+ },
+ pos => {
+ default => 'top right',
+ test => $key_pos_test,
+ description => 'position of the key on the plot',
+ edit_type => 'choice',
+ choices => ['top left','top right','bottom left','bottom right',
+ 'outside','below']
+ }
);
my %label_defaults =
(
- xpos => {default => 0, test => $real_test },
- ypos => {default => 0, test => $real_test },
- justify => {default => 'left',
- test => sub {$_[0]=~/^(left|right|center)$/} }
+ xpos => {
+ default => 0,
+ test => $real_test,
+ description => 'x position of label (graph coordinates)',
+ edit_type => 'entry'
+ },
+ ypos => {
+ default => 0,
+ test => $real_test,
+ description => 'y position of label (graph coordinates)',
+ edit_type => 'entry'
+ },
+ justify => {
+ default => 'left',
+ test => sub {$_[0]=~/^(left|right|center)$/},
+ description => 'justification of the label text on the plot',
+ edit_type => 'choice',
+ choices => ['left','right','center']
+ }
);
my %axis_defaults =
(
- color => {default => 'x000000', test => $color_test},
- xmin => {default => '-10.0', test => $real_test },
- xmax => {default => ' 10.0', test => $real_test },
- ymin => {default => '-10.0', test => $real_test },
- ymax => {default => ' 10.0', test => $real_test },
- linestyle => {default => 'points', test => $linestyle_test}
+ color => {
+ default => 'x000000',
+ test => $color_test,
+ description => 'color of axes (x000000)',
+ edit_type => 'entry'
+ },
+ xmin => {
+ default => '-10.0',
+ test => $real_test,
+ description => 'minimum x-value shown in plot',
+ edit_type => 'entry'
+ },
+ xmax => {
+ default => ' 10.0',
+ test => $real_test,
+ description => 'maximum x-value shown in plot',
+ edit_type => 'entry'
+ },
+ ymin => {
+ default => '-10.0',
+ test => $real_test,
+ description => 'minimum y-value shown in plot',
+ edit_type => 'entry'
+ },
+ ymax => {
+ default => ' 10.0',
+ test => $real_test,
+ description => 'maximum y-value shown in plot',
+ edit_type => 'entry'
+ },
+ linestyle => {
+ default => 'points',
+ test => $linestyle_test,
+ description => 'Style of the axis lines',
+ edit_type => 'choice',
+ choices => ['lines','linespoints','dots','points']
+ }
);
my %curve_defaults =
(
- color => {default => 'x000000', test => $color_test },
- name => {default => '', test => $words_test },
- linestyle => {default => 'lines', test => $linestyle_test }
+ color => {
+ default => 'x000000',
+ test => $color_test,
+ description => 'color of curve (x000000)',
+ edit_type => 'entry'
+ },
+ name => {
+ default => '',
+ test => $words_test,
+ description => 'name of curve to appear in key',
+ edit_type => 'entry'
+ },
+ linestyle => {
+ default => 'lines',
+ test => $linestyle_test,
+ description => 'Style of the axis lines',
+ edit_type => 'choice',
+ choices => ['lines','linespoints','dots','points','steps']
+ }
);
##
@@ -135,17 +262,25 @@ sub start_plot {
#
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- &Apache::lonxml::register('Apache::lonplot',
- ('title','xlabel','ylabel','key','axis','label','curve'));
- push (@Apache::lonxml::namespace,'plot');
- ## Always evaluate the insides of the <plot></plot> tags
- my $inside = &Apache::lonxml::get_all_text("/plot",$$parser[-1]);
- $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
- &Apache::lonxml::newparser($parser,\$inside);
- ##-------------------------------------------------------
- &get_attributes(\%plot,\%plot_defaults,$parstack,$safeeval,
- $tagstack->[-1]);
if ($target eq 'web') {
+ &Apache::lonxml::register('Apache::lonplot',
+ ('title','xlabel','ylabel','key','axis','label','curve'));
+ push (@Apache::lonxml::namespace,'plot');
+ ## Always evaluate the insides of the <plot></plot> tags
+ my $inside = &Apache::lonxml::get_all_text("/plot",$$parser[-1]);
+ $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
+ &Apache::lonxml::newparser($parser,\$inside);
+ ##-------------------------------------------------------
+ &get_attributes(\%plot,\%plot_defaults,$parstack,$safeeval,
+ $tagstack->[-1]);
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
+ my $constructtag=&Apache::edit::get_new_args
+ ($token,$parstack,$safeeval,keys %plot_defaults);
+ if ($constructtag) {
+ $result = &Apache::edit::rebuild_tag($token);
+ $result.= &Apache::edit::handle_insert();
+ }
}
return '';
}
@@ -194,6 +329,8 @@ sub end_plot {
align = "$plot{'align'}"
alt = "/cgi-bin/plot.gif?$filename" />
ENDIMAGE
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -202,10 +339,17 @@ ENDIMAGE
sub start_key {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- &get_attributes(\%key,\%key_defaults,$parstack,$safeeval,
- $tagstack->[-1]);
if ($target eq 'web') {
- # This routine should never return anything.
+ &get_attributes(\%key,\%key_defaults,$parstack,$safeeval,
+ $tagstack->[-1]);
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
+ my $constructtag=&Apache::edit::get_new_args
+ ($token,$parstack,$safeeval,keys %key_defaults);
+ if ($constructtag) {
+ $result = &Apache::edit::rebuild_tag($token);
+ $result.= &Apache::edit::handle_insert();
+ }
}
return $result;
}
@@ -214,17 +358,19 @@ sub end_key {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ($target eq 'web') {
- # This routine should never return anything.
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
##------------------------------------------------------------------- title
sub start_title {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- $title = &Apache::lonxml::get_all_text("/title",$$parser[-1]);
my $result='';
if ($target eq 'web') {
- # This routine should never return anything.
+ $title = &Apache::lonxml::get_all_text("/title",$$parser[-1]);
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -233,7 +379,8 @@ sub end_title {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ($target eq 'web') {
- # This routine should never return anything.
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -241,9 +388,10 @@ sub end_title {
sub start_xlabel {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- $xlabel = &Apache::lonxml::get_all_text("/xlabel",$$parser[-1]);
if ($target eq 'web') {
- # This routine should never return anything.
+ $xlabel = &Apache::lonxml::get_all_text("/xlabel",$$parser[-1]);
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -252,7 +400,8 @@ sub end_xlabel {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ($target eq 'web') {
- # This routine should never return anything.
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -260,9 +409,10 @@ sub end_xlabel {
sub start_ylabel {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- $ylabel = &Apache::lonxml::get_all_text("/ylabel",$$parser[-1]);
if ($target eq 'web') {
- # This routine should never return anything.
+ $ylabel = &Apache::lonxml::get_all_text("/ylabel",$$parser[-1]);
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -271,7 +421,8 @@ sub end_ylabel {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ($target eq 'web') {
- # This routine should never return anything.
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -279,17 +430,24 @@ sub end_ylabel {
sub start_label {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- my %label;
- &get_attributes(\%label,\%label_defaults,$parstack,$safeeval,
- $tagstack->[-1]);
- $label{'text'} = &Apache::lonxml::get_all_text("/label",$$parser[-1]);
- if (! &$words_test($label{'text'})) {
- # I should probably warn about it, too.
- $label{'text'} = 'Illegal text';
- }
- push(@labels,\%label);
if ($target eq 'web') {
- # This routine should never return anything.
+ my %label;
+ &get_attributes(\%label,\%label_defaults,$parstack,$safeeval,
+ $tagstack->[-1]);
+ $label{'text'} = &Apache::lonxml::get_all_text("/label",$$parser[-1]);
+ if (! &$words_test($label{'text'})) {
+ # I should probably warn about it, too.
+ $label{'text'} = 'Illegal text';
+ }
+ push(@labels,\%label);
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
+ my $constructtag=&Apache::edit::get_new_args
+ ($token,$parstack,$safeeval,keys %label_defaults);
+ if ($constructtag) {
+ $result = &Apache::edit::rebuild_tag($token);
+ $result.= &Apache::edit::handle_insert();
+ }
}
return $result;
}
@@ -298,7 +456,8 @@ sub end_label {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ($target eq 'web') {
- # This routine should never return anything.
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -307,14 +466,21 @@ sub end_label {
sub start_curve {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- my %curve;
- &get_attributes(\%curve,\%curve_defaults,$parstack,$safeeval,
- $tagstack->[-1]);
- push (@curves,\%curve);
- &Apache::lonxml::register('Apache::lonplot',('function','data'));
- push (@Apache::lonxml::namespace,'curve');
if ($target eq 'web') {
- # This routine should never return anything.
+ my %curve;
+ &get_attributes(\%curve,\%curve_defaults,$parstack,$safeeval,
+ $tagstack->[-1]);
+ push (@curves,\%curve);
+ &Apache::lonxml::register('Apache::lonplot',('function','data'));
+ push (@Apache::lonxml::namespace,'curve');
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
+ my $constructtag=&Apache::edit::get_new_args
+ ($token,$parstack,$safeeval,keys %label_defaults);
+ if ($constructtag) {
+ $result = &Apache::edit::rebuild_tag($token);
+ $result.= &Apache::edit::handle_insert();
+ }
}
return $result;
}
@@ -322,10 +488,11 @@ sub start_curve {
sub end_curve {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
- pop @Apache::lonxml::namespace;
- &Apache::lonxml::deregister('Apache::lonplot',('function','data'));
if ($target eq 'web') {
- # This routine should never return anything.
+ pop @Apache::lonxml::namespace;
+ &Apache::lonxml::deregister('Apache::lonplot',('function','data'));
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -333,14 +500,23 @@ sub end_curve {
sub start_function {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- if (exists($curves[-1]->{'data'})) {
- &Apache::lonxml::warning('Use of <function> precludes use of <data>. The <data> will be omitted in favor of the <function> declaration.');
- delete $curves[-1]->{'data'} ;
- }
- $curves[-1]->{'function'} =
- &Apache::lonxml::get_all_text("/function",$$parser[-1]);
if ($target eq 'web') {
- # This routine should never return anything.
+ if (exists($curves[-1]->{'data'})) {
+ &Apache::lonxml::warning('Use of <function> precludes use of <data>. The <data> will be omitted in favor of the <function> declaration.');
+ delete $curves[-1]->{'data'} ;
+ }
+ $curves[-1]->{'function'} =
+ &Apache::lonxml::get_all_text("/function",$$parser[-1]);
+ } elsif ($target eq 'edit') {
+ $result.=&Apache::edit::tag_start($target,$token);
+ my $text=&Apache::lonxml::get_all_text("/function",$$parser[-1]);
+ $result.='</td></tr><tr><td colspan="3">'.
+ &Apache::edit::editfield('',$text,'',20,1).
+ &Apache::edit::end_table();
+ } elsif ($target eq 'modified') {
+ # Why do I do this?
+ my $text=$$parser[-1]->get_text("/function");
+ $result.=&Apache::edit::modifiedfield($token);
}
return $result;
}
@@ -349,7 +525,8 @@ sub end_function {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ($target eq 'web') {
- # This routine should never return anything.
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -357,37 +534,43 @@ sub end_function {
sub start_data {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- if (exists($curves[-1]->{'function'})) {
- &Apache::lonxml::warning('Use of <data> precludes use of <function>.'.
- ' The <function> will be omitted in favor of the <data>'.
- ' declaration.');
- delete($curves[-1]->{'function'});
- }
- my $datatext = &Apache::lonxml::get_all_text("/data",$$parser[-1]);
- $datatext =~ s/\s+/ /g; # No whitespace, numbers must be seperated
- # by commas
- if ($datatext !~ /^(([+-]?\d*\.?\d*)[, ]?)+$/) {
- &Apache::lonxml::warning('Malformed data: '.$datatext);
- $datatext = '';
- }
- # Need to do some error checking on the @data array -
- # make sure it's all numbers and make sure each array
- # is of the same length.
- my @data;
- if ($datatext =~ /,/) {
- @data = split /,/,$datatext;
- } else { # Assume it's space seperated.
- @data = split / /,$datatext;
- }
- for (my $i=0;$i<=$#data;$i++) {
- # Check that it's non-empty
- # Check that it's a number
- # Maybe I need a 'debug=on' switch to list the data set
- # out in a warning?
- }
- push @{$curves[-1]->{'data'}},\@data;
if ($target eq 'web') {
- # This routine should never return anything.
+ if (exists($curves[-1]->{'function'})) {
+ &Apache::lonxml::warning('Use of <data> precludes use of .'.
+ '<function>. The <function> will be omitted in favor of '.
+ 'the <data> declaration.');
+ delete($curves[-1]->{'function'});
+ }
+ my $datatext = &Apache::lonxml::get_all_text("/data",$$parser[-1]);
+ $datatext =~ s/\s+/ /g;
+ # Need to do some error checking on the @data array -
+ # make sure it's all numbers and make sure each array
+ # is of the same length.
+ my @data;
+ if ($datatext =~ /,/) {
+ @data = split /,/,$datatext;
+ } else { # Assume it's space seperated.
+ @data = split / /,$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 '.
+ ' 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 '.
+ ' pi/e = 1.15572734979092');
+ $data[$i] = 1.15572734979092;
+ }
+ }
+ push @{$curves[-1]->{'data'}},\@data;
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -396,7 +579,8 @@ sub end_data {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ($target eq 'web') {
- # This routine should never return anything.
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -405,10 +589,11 @@ sub end_data {
sub start_axis {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- &get_attributes(\%axis,\%axis_defaults,$parstack,$safeeval,
- $tagstack->[-1]);
if ($target eq 'web') {
- # This routine should never return anything.
+ &get_attributes(\%axis,\%axis_defaults,$parstack,$safeeval,
+ $tagstack->[-1]);
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
}
return $result;
}
@@ -417,7 +602,14 @@ sub end_axis {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ($target eq 'web') {
- # This routine should never return anything.
+ } elsif ($target eq 'edit') {
+ } elsif ($target eq 'modified') {
+ my $constructtag=&Apache::edit::get_new_args
+ ($token,$parstack,$safeeval,keys %axis_defaults);
+ if ($constructtag) {
+ $result = &Apache::edit::rebuild_tag($token);
+ $result.= &Apache::edit::handle_insert();
+ }
}
return $result;
}
@@ -439,8 +631,7 @@ sub get_attributes{
my $parstack = shift;
my $safeeval = shift;
my $tag = shift;
- my $attr;
- foreach $attr (keys %{$defaults}) {
+ foreach my $attr (keys %{$defaults}) {
$values->{$attr} =
&Apache::lonxml::get_param($attr,$parstack,$safeeval);
if ($values->{$attr} eq '' | !defined($values->{$attr})) {
@@ -537,11 +728,111 @@ sub write_gnuplot_file {
$gnuplot_input .= $/.$datatext;
return $gnuplot_input;
}
+#------------------------------------------------ make_edit
+sub edit_attributes {
+ my $target = shift;
+ my $token = shift;
+ my $defaults = shift;
+ my $result;
+ foreach my $attr (%{$token->[2]}) {
+ if ($defaults->{$attr}->{'edit_type'} eq 'entry') {
+ $result .= &Apache::edit::text_arg(
+ $defaults->{$attr}->{'description'},
+ $attr,
+ $token);
+ } elsif ($defaults->{$attr}->{'edit_type'} eq 'choice') {
+ $result .= &Apache::edit::select_arg(
+ $defaults->{$attr}->{'description'},
+ $attr,
+ $defaults->{$attr}->{'choices'},
+ $token);
+ }
+ }
+ return $result;
+}
-1;
-__END__
+#------------------------------------------------ insert_xxxxxxx
+sub insert_plot {
+ my $result;
+ # plot attributes
+ $result .= '<plot ';
+ foreach my $attr (%plot_defaults) {
+ $result .= ' '.$attr.' "'.$plot_defaults{$attr}->{'default'}.
+ "\"\n";
+ }
+ $result .= ">\n";
+ # Add the components
+ $result .= &insert_key();
+ $result .= &insert_axis();
+ $result .= &insert_label();
+ $result .= &insert_curve();
+ $result .= &insert_function();
+ $result .= "</curve>\n";
+ $result .= &insert_curve();
+ $result .= &insert_data();
+ $result .= "</curve>\n";
+ # close up the <plot>
+ $result .= "</plot>\n";
+ return $result;
+}
+sub insert_key {
+ my $result;
+ $result .= ' <key ';
+ foreach my $attr (%key_defaults) {
+ $result .= ' '.$attr.' "'.$key_defaults{$attr}->{'default'}.
+ "\"\n";
+ }
+ $result .= " />\n";
+ return $result;
+}
+sub insert_axis{
+ my $result;
+ $result .= ' <axis ';
+ foreach my $attr (%axis_defaults) {
+ $result .= ' '.$attr.' "'.$axis_defaults{$attr}->{'default'}.
+ "\"\n";
+ }
+ $result .= " />\n";
+ return $result;
+}
+sub insert_label {
+ my $result;
+ $result .= ' <label ';
+ foreach my $attr (%label_defaults) {
+ $result .= ' '.$attr.' "'.
+ $label_defaults{$attr}->{'default'}."\"\n";
+ }
+ $result .= " ></label>\n";
+ return $result;
+}
+
+sub insert_curve {
+ my $result;
+ $result .= ' <curve ';
+ foreach my $attr (%curve_defaults) {
+ $result .= ' '.$attr.' "'.
+ $curve_defaults{$attr}->{'default'}."\"\n";
+ }
+ $result .= " >\n";
+}
+
+sub insert_function {
+ my $result;
+ $result .= "<function></function>\n";
+ return $result;
+}
+
+sub insert_data {
+ my $result;
+ $result .= " <data></data>\n";
+ $result .= " <data></data>\n";
+ return $result;
+}
+
+1;
+__END__