version 1.2, 2001/12/18 15:33:47
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version 1.6, 2001/12/19 18:27:30
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Line 25
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Line 25
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# |
# |
# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
# 2/21 Guy |
# 12/15/01 Matthew |
|
# 12/18 Matthew |
package Apache::lonplot; |
package Apache::lonplot; |
use strict; |
use strict; |
use Apache::response; |
use Apache::response; |
Line 36 sub BEGIN {
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Line 37 sub BEGIN {
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&Apache::lonxml::register('Apache::lonplot',('plot')); |
&Apache::lonxml::register('Apache::lonplot',('plot')); |
} |
} |
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|
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## |
## |
## Tests used in checking the validitity of input |
## Tests used in checking the validitity of input |
## |
## |
Line 47 my $onoff_test = sub {$_[0]=~/^(on|o
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Line 47 my $onoff_test = sub {$_[0]=~/^(on|o
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my $key_pos_test = sub {$_[0]=~/^(top|bottom|right|left|outside|below)+$/}; |
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]=~/^(small|medium|large)$/}; |
my $linestyle_test = sub {$_[0]=~/^(lines|linespoints|dots|points|steps)$/}; |
my $linestyle_test = sub {$_[0]=~/^(lines|linespoints|dots|points|steps)$/}; |
|
my $words_test = sub {$_[0]=~/^((\w+\b*)+$/}; |
## |
## |
## Default values for attributes of elements |
## Default values for attributes of elements |
## |
## |
Line 55 my %plot_defaults =
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Line 55 my %plot_defaults =
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( |
( |
height => {default => 200, test => $int_test }, |
height => {default => 200, test => $int_test }, |
width => {default => 200, test => $int_test }, |
width => {default => 200, test => $int_test }, |
bgcolor => {default => "xffffff", test => $color_test}, |
bgcolor => {default => 'xffffff', test => $color_test}, |
fgcolor => {default => "x000000", test => $color_test}, |
fgcolor => {default => 'x000000', test => $color_test}, |
transparent => {default => "off", test => $onoff_test}, |
transparent => {default => 'off', test => $onoff_test}, |
grid => {default => "off", test => $onoff_test}, |
grid => {default => 'off', test => $onoff_test}, |
border => {default => "on" , test => $onoff_test}, |
border => {default => 'on', test => $onoff_test}, |
font => {default => "medium", test => $sml_test } |
font => {default => 'medium', test => $sml_test } |
); |
); |
|
|
my %key_defaults = |
my %key_defaults = |
( |
( |
title => { default => "on" , test => $onoff_test }, |
title => { default => '', test => $words_test }, |
box => { default => "off" , test => $onoff_test }, |
box => { default => 'off', test => $onoff_test }, |
pos => { default => "top right" , test => $key_pos_test} |
pos => { default => 'top right', test => $key_pos_test} |
); |
); |
|
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my %label_defaults = |
my %label_defaults = |
( |
( |
xpos => {default => 0, test => $real_test }, |
xpos => {default => 0, test => $real_test }, |
ypos => {default => 0, test => $real_test }, |
ypos => {default => 0, test => $real_test }, |
color => {default => "x000000", test => $color_test }, |
justify => {default => 'left', |
justify => {default => "left", |
|
test => sub {$_[0]=~/^(left|right|center)$/}} |
test => sub {$_[0]=~/^(left|right|center)$/}} |
); |
); |
|
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my %axis_defaults = |
my %axis_defaults = |
( |
( |
color => {default => "x000000", test => $color_test}, |
color => {default => 'x000000', test => $color_test}, |
thickness => {default => 1, test => $int_test }, |
# thickness => {default => 1, test => $int_test }, |
xmin => {default => -10.0, test => $real_test }, |
xmin => {default => -10.0, test => $real_test }, |
xmax => {default => 10.0, test => $real_test }, |
xmax => {default => 10.0, test => $real_test }, |
ymin => {default => -10.0, test => $real_test }, |
ymin => {default => -10.0, test => $real_test }, |
Line 91 my %axis_defaults =
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Line 90 my %axis_defaults =
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my %curve_defaults = |
my %curve_defaults = |
( |
( |
color => {default => "x000000", test => $color_test }, |
color => {default => 'x000000', test => $color_test }, |
name => {default => "x000000", test => sub {$_[0]=~/^[\w ]*$/} }, |
name => {default => 'x000000', test => sub {$_[0]=~/^[\w ]*$/} }, |
linestyle => {default => "lines", test => $linestyle_test } |
linestyle => {default => 'lines', test => $linestyle_test } |
); |
); |
|
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## |
## |
Line 105 sub start_plot {
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Line 104 sub start_plot {
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%plot = ''; %key=''; %axis=''; |
%plot = ''; %key=''; %axis=''; |
$title=''; $xlabel=''; $ylabel=''; |
$title=''; $xlabel=''; $ylabel=''; |
@labels = ''; @curves=''; |
@labels = ''; @curves=''; |
|
# |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
&Apache::lonxml::register('Apache::plot', |
&Apache::lonxml::register('Apache::plot', |
('title','xlabel','ylabel','key','axis','label','curve')); |
('title','xlabel','ylabel','key','axis','label','curve')); |
push (@Apache::lonxml::namespace,'plot'); |
push (@Apache::lonxml::namespace,'plot'); |
##------------------------------------------------------- |
## Always evaluate the insides of the <plot></plot> tags |
## How do I do this? I need to "eval" and I need to keep the info |
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## available for the parser. |
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## |
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my $inside = &Apache::lonxml::get_all_text("/plot",$$parser[-1]); |
my $inside = &Apache::lonxml::get_all_text("/plot",$$parser[-1]); |
my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval); |
$inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]); |
if ($eval eq 'on') { |
&Apache::lonxml::newparser($parser,\$inside); |
$inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]); |
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#&Apache::lonxml::debug("M is evaulated to:$inside:"); |
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} |
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##------------------------------------------------------- |
##------------------------------------------------------- |
&get_attributes(\%plot,\%plot_defaults,$parstack,$safeeval,'plot'); |
&get_attributes(\%plot,\%plot_defaults,$parstack,$safeeval,'plot'); |
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if ($target eq 'web') { |
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} |
return ''; |
return ''; |
} |
} |
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sub end_plot { |
sub end_plot { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
pop @Apache::lonxml::namespace; |
pop @Apache::lonxml::namespace; |
my $result; |
&Apache::lonxml::deregister('Apache::lonplot', |
## Determine filename |
('title','xlabel','ylabel','key','axis','label','curve')); |
my $tmpdir = '/home/httpd/perl/tmp/'; |
my $result = ''; |
my $filename = $tmpdir.$ENV{'user.name'}.'_'.$ENV{'user.domain'}. |
if ($target eq 'web') { |
'_plot.data'; |
## Determine filename -- Need to use the 'id' thingy that Gerd |
my $usersees=md5_base64($filename.'_'.$ENV{'REMOTE_ADDR'}); |
## mentioned. |
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my $tmpdir = '/home/httpd/perl/tmp/'; |
## Write the plot description to the file |
my $filename = $tmpdir.$ENV{'user.name'}.'_'.$ENV{'user.domain'}. |
my $fh=&Apache::File->new('/home/httpd/perl/tmp/'.$realname); |
'_plot.data'; |
## Ack! |
my $usersees=md5_base64($filename.'_'.$ENV{'REMOTE_ADDR'}); |
## return image tag for the plot |
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$result = '<img src=\"/cgi-bin/plot.cgi?'.$usersees.'"'; |
## Write the plot description to the file |
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my $fh=&Apache::File->new('/home/httpd/perl/tmp/'.$realname); |
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&write_gnuplot_file($fh); |
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## return image tag for the plot |
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$result = '<img src=\"/cgi-bin/plot.cgi?'.$usersees.'"'; |
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} |
return $result; |
return $result; |
} |
} |
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Line 148 sub end_plot {
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Line 148 sub end_plot {
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sub start_key { |
sub start_key { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
&get_attributes(\%key,\%key_defaults,$parstack,$safeeval,'key'); |
&get_attributes(\%key,\%key_defaults,$parstack,$safeeval,$tagstack); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_key { |
sub end_key { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
##------------------------------------------------------------------- title |
##------------------------------------------------------------------- title |
Line 162 sub start_title {
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Line 168 sub start_title {
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
$title = &Apache::lonxml::get_all_text("/title",$$parser[-1]); |
$title = &Apache::lonxml::get_all_text("/title",$$parser[-1]); |
my $result=''; |
my $result=''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_title { |
sub end_title { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
##------------------------------------------------------------------- xlabel |
##------------------------------------------------------------------- xlabel |
Line 175 sub start_xlabel {
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Line 187 sub start_xlabel {
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
$xlabel = &Apache::lonxml::get_all_text("/xlabel",$$parser[-1]); |
$xlabel = &Apache::lonxml::get_all_text("/xlabel",$$parser[-1]); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_xlabel { |
sub end_xlabel { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
##------------------------------------------------------------------- ylabel |
##------------------------------------------------------------------- ylabel |
Line 188 sub start_ylabel {
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Line 206 sub start_ylabel {
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
$ylabel = &Apache::lonxml::get_all_text("/ylabel",$$parser[-1]); |
$ylabel = &Apache::lonxml::get_all_text("/ylabel",$$parser[-1]); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_ylabel { |
sub end_ylabel { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
##------------------------------------------------------------------- label |
##------------------------------------------------------------------- label |
sub start_label { |
sub start_label { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
my $label = &newhashref(); |
my %label; |
&get_attributes($label,\%label_defaults,$parstack,$safeeval,'label'); |
&get_attributes($label,\%label_defaults,$parstack,$safeeval,$tagstack); |
$label->{'text'} = &Apache::lonxml::get_all_text("/label",$$parser[-1]); |
$label->{'text'} = &Apache::lonxml::get_all_text("/label",$$parser[-1]); |
push(@labels,$label); |
push(@labels,\%label); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_label { |
sub end_label { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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Line 217 sub end_label {
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Line 247 sub end_label {
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sub start_curve { |
sub start_curve { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
my $curve = &newhashref(); |
my %curve; |
&get_attributes($curve,\%curve_defaults,$parstack,$safeeval,'curve'); |
&get_attributes($curve,\%curve_defaults,$parstack,$safeeval,$tagstack); |
push (@curves,$curve); |
push (@curves,$curve); |
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&Apache::lonxml::register('Apache::lonplot',('function','data')); |
&Apache::lonxml::register('Apache::plot',('function','data')); |
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push (@Apache::lonxml::namespace,'curve'); |
push (@Apache::lonxml::namespace,'curve'); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_curve { |
sub end_curve { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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pop @Apache::lonxml::namespace; |
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&Apache::lonxml::deregister('Apache::lonplot',('function','data')); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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##------------------------------------------------------------ curve function |
##------------------------------------------------------------ curve function |
sub start_function { |
sub start_function { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
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if (exists($curves[-1]->{'data'}) { |
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&Apache::lonxml::warning('Use of <function> precludes use of <data>. The <data> will be omitted in favor of the <function> declaration.'); |
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delete($curves[-1]->{'data'}); |
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} |
$curves[-1]->{'function'} = |
$curves[-1]->{'function'} = |
&Apache::lonxml::get_all_text("/function",$$parser[-1]); |
&Apache::lonxml::get_all_text("/function",$$parser[-1]); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_function { |
sub end_function { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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##------------------------------------------------------------ curve data |
##------------------------------------------------------------ curve data |
sub start_data { |
sub start_data { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
push( @{$curves[-1]->{'data'}}, |
if (exists($curves[-1]->{'function'})) { |
&Apache::lonxml::get_all_text("/data",$$parser[-1])); |
&Apache::lonxml::warning('Use of <data> precludes use of <function>. The <function> will be omitted in favor of the <data> declaration.'); |
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delete($curves[-1]->{'function'}); |
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} |
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my $datatext = &Apache::lonxml::get_all_text("/data",$$parser[-1]); |
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$datatext =~ s/(\s+$|^\s+)//g; |
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$datatext =~ s/\s+/ /g; |
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if ($datatext !~ /^(([+-]?\d*\.?\d*)[, ]?)+$/) { |
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&Apache::lonxml::warning('Malformed data: '.$datatext); |
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$datatext = ''; |
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} |
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# Need to do some error checking on the @data array - |
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# make sure it's all numbers and make sure each array |
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# is of the same length. |
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my @data = split /[, ]/,$datatext; |
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push( @{$curves[-1]->{'data'}},\@data; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_data { |
sub end_data { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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Line 268 sub end_data {
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Line 331 sub end_data {
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sub start_axis { |
sub start_axis { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
&get_attributes(\%axis,\%label_defaults,$parstack,$safeeval,'axis'); |
&get_attributes(\%axis,\%label_defaults,$parstack,$safeeval,$tagstack); |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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sub end_axis { |
sub end_axis { |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result = ''; |
my $result = ''; |
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if ($target eq 'web') { |
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# This routine should never return anything. |
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} |
return $result; |
return $result; |
} |
} |
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##------------------------------------------------------------------- misc |
##------------------------------------------------------------------- misc |
sub newhashref{ |
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my %hash; |
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return \%hash; |
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} |
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|
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sub get_attributes{ |
sub get_attributes{ |
%values = %{shift}; |
%values = %{shift}; |
%defaults = %{shift}; |
%defaults = %{shift}; |
Line 293 sub get_attributes{
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Line 357 sub get_attributes{
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my $attr; |
my $attr; |
foreach $attr (keys %defaults) { |
foreach $attr (keys %defaults) { |
$values{$attr} = &Apache::lonxml::get_param($attr,$parstack,$safeeval); |
$values{$attr} = &Apache::lonxml::get_param($attr,$parstack,$safeeval); |
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if ($values{$attr} eq '' | !defined($values{$attr})) { |
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$values{$attr} = $defaults{$attr}; |
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next; |
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} |
my $test = $defaults{$attr}->{'test'}; |
my $test = $defaults{$attr}->{'test'}; |
if (! &$test($values{$attr})) { |
if (! &$test($values{$attr})) { |
&Apache::lonxml::warning($tag.':'.$attr.': Bad value. Replacing your value with : '.$defaults{$attr}); |
&Apache::lonxml::warning |
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($tag.':'.$attr.': Bad value.'.'Replacing your value with : ' |
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.$defaults{$attr} ); |
$values{$attr} = $defaults{$attr}; |
$values{$attr} = $defaults{$attr}; |
} |
} |
return ; |
return ; |
} |
} |
|
|
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sub write_gnuplot_file { |
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my $fh = shift; |
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my $gnuplot_input = ''; |
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# Collect all the colors |
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my @Colors; |
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push @Colors, $plot{'bgcolor'}; |
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push @Colors, $plot{'fgcolor'}; |
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push @Colors, $axis{'color'}; |
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push @Colors, $axis{'color'}; |
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foreach $curve (@Curves) { |
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push @Colors, ($curve{'color'} ne '' ? |
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$curve{'color'} : |
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$plot{'fgcolor'} ); |
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} |
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# set term |
|
$gnuplot_input .= 'set term gif '; |
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$gnuplot_input .= 'transparent ' if ($plot{'transparent'} eq 'on'); |
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$gnuplot_input .= $plot{'font'} . ' '; |
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$gnuplot_input .= 'size ' . $plot{'width'} . ' '; |
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$gnuplot_input .= $plot{'height'} . ' '; |
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$gnuplot_input .= "@Colors\n"; |
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# title, xlabel, ylabel |
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{ |
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$gnuplot_input .<<"ENDLABELS"; |
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set title $title->{'text'} |
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set xlabel $xlabel->{'text'} |
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set ylabel $ylabel->{'text'} |
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set xrange $axis->{'xmin'}:$axis->{'xmax'} |
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set yrange $axis->{'ymin'}:$axis->{'ymax'} |
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ENDLABELS |
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} |
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# Key |
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if (defined($key{'pos'})) { |
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$gnuplot_input .= 'set key '.$key->{'pos'}.' '; |
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$gnuplot_input .= ($key->{'box'} eq 'on' ? 'box ' : 'nobox '); |
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if ($key->{'title'} ne '') { |
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$gnuplot_input .= 'title "'$key->{'title'}.'"\n'; |
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} else { |
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$gnuplot_input .= '\n'; |
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} |
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} else { |
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$gnuplot_input .= 'set nokey\n'; |
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} |
|
# axis |
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$gnuplot_input .= 'set xrange ['.$axis{'xmin'}.':'.$axis{'xmin'}.']\n'; |
|
$gnuplot_input .= 'set yrange ['.$axis{'ymin'}.':'.$axis{'ymin'}.']\n'; |
|
# labels |
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foreach $label (@labels) { |
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$gnuplot_input .= 'set label "'.$label->{'text'}.'" at '. |
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$label->{'x'}.','.$label->{'y'}.'\n'; |
|
} |
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# curves |
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$gnuplot_input .= 'plot '; |
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my $datatext = ''; |
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foreach $curve (@curves) { |
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if (exists($curve->{'function'})) { |
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$gnuplot_input.= $curve->{'function'}.' with '.$curve->{'linestyle'}; |
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} elsif (exists($curve->{'data'})) { |
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$gnuplot_input.= '\'-\' with '.$curve->{'linestyle'}; |
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my @Data = @{$curve->{'data'}}; |
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for ($i =0; $i<=$#Data; $i++) { |
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foreach $dataset (@Data) { |
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$datatext .= $dataset[$i] . ' '; |
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} |
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$datatext .='\n'; |
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} |
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$datatext .='\n'; |
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} |
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} |
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$gnuplot_input .= $datatext; |
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print $fh $gnuplot_input; |
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} |
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1; |
1; |
__END__ |
__END__ |
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