version 1.11, 2001/12/20 20:24:36
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version 1.13, 2001/12/21 15:27:29
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Line 34 use Apache::File;
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Line 34 use Apache::File;
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use Apache::response; |
use Apache::response; |
use Apache::lonxml; |
use Apache::lonxml; |
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use Digest::MD5 qw(md5 md5_hex md5_base64); |
use Digest::MD5 qw(md5_base64); |
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sub BEGIN { |
sub BEGIN { |
&Apache::lonxml::register('Apache::lonplot',('plot')); |
&Apache::lonxml::register('Apache::lonplot',('plot')); |
Line 116 my %axis_defaults =
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Line 116 my %axis_defaults =
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my %curve_defaults = |
my %curve_defaults = |
( |
( |
color => {default => 'x000000', test => $color_test }, |
color => {default => 'x000000', test => $color_test }, |
name => {default => 'x000000', test => sub {1} },#sub {$_[0]=~/^[\w ]*$/} }, |
name => {default => '', test => $words_test }, |
linestyle => {default => 'lines', test => $linestyle_test } |
linestyle => {default => 'lines', test => $linestyle_test } |
); |
); |
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## |
## |
Line 155 sub end_plot {
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Line 155 sub end_plot {
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('title','xlabel','ylabel','key','axis','label','curve')); |
('title','xlabel','ylabel','key','axis','label','curve')); |
my $result = ''; |
my $result = ''; |
if ($target eq 'web') { |
if ($target eq 'web') { |
## Determine filename -- Need to use the 'id' thingy that Gerd |
## |
## mentioned. |
## Make sure we have all the input we need: |
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if (! defined(%plot )) { &set_defaults(\%plot,\%plot_defaults); } |
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if (! defined(%key )) {} # No key for this plot |
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if (! defined(%axis )) { &set_defaults(\%axis,\%axis_defaults); } |
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if (! defined($title )) {} # No title for this plot |
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if (! defined($xlabel)) {} # No xlabel for this plot |
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if (! defined($ylabel)) {} # No ylabel for this plot |
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if ($#labels < 0) { } # No labels for this plot |
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if ($#curves < 0) { } # This is an error |
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## |
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## Determine filename |
my $tmpdir = '/home/httpd/perl/tmp/'; |
my $tmpdir = '/home/httpd/perl/tmp/'; |
my $filename = $tmpdir.$ENV{'user.name'}.'_'.$ENV{'user.domain'}. |
my $filename = $ENV{'user.name'}.'_'.$ENV{'user.domain'}. |
'_plot.data'; |
'_'.time.'_'.$$.'_plot.data'; |
my $usersees=md5_base64($filename.'_'.$ENV{'REMOTE_ADDR'}); |
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## Write the plot description to the file |
## Write the plot description to the file |
my $fh=Apache::File->new('/home/httpd/perl/tmp/'.$filename); |
my $fh=Apache::File->new(">$tmpdir$filename"); |
$result .= '<pre>'; |
$result .= '<pre>'; |
$result .= &write_gnuplot_file($fh); |
$result .= $filename.$/; |
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print $fh &write_gnuplot_file(); |
$result .= '</pre>'.$/; |
$result .= '</pre>'.$/; |
## return image tag for the plot |
## return image tag for the plot |
$result .= '<img src="/cgi-bin/plot.cgi?'.$usersees.'"/>'; |
$result .= <<"ENDIMAGE"; |
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<img src = "/cgi-bin/plot.gif?$filename" |
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alt = "/cgi-bin/plot.gif?$filename" /> |
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ENDIMAGE |
} |
} |
return $result; |
return $result; |
} |
} |
Line 392 sub end_axis {
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Line 404 sub end_axis {
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return $result; |
return $result; |
} |
} |
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##----------------------------------------------------------- set_defaults |
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sub set_defaults { |
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my $var = shift; |
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my $defaults = shift; |
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my $key; |
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foreach $key (keys %$defaults) { |
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$var->{$key} = $defaults->{$key}->{'default'}; |
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} |
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} |
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##------------------------------------------------------------------- misc |
##------------------------------------------------------------------- misc |
sub get_attributes{ |
sub get_attributes{ |
my $values = shift; |
my $values = shift; |
Line 419 sub get_attributes{
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Line 441 sub get_attributes{
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} |
} |
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sub write_gnuplot_file { |
sub write_gnuplot_file { |
my $fh = shift; |
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my $gnuplot_input = ''; |
my $gnuplot_input = ''; |
my $curve; |
my $curve; |
# Collect all the colors |
# Collect all the colors |
my @Colors; |
my @Colors; |
push @Colors, $plot{'bgcolor'}; |
push @Colors, $plot{'bgcolor'}; |
push @Colors, $plot{'fgcolor'}; |
push @Colors, $plot{'fgcolor'}; |
push @Colors, $axis{'color'}; |
push @Colors, (defined($axis{'color'})?$axis{'color'}:$plot{'fgcolor'}); |
push @Colors, $axis{'color'}; |
push @Colors, $Colors[-1]; # Redundancy |
foreach $curve (@curves) { |
foreach $curve (@curves) { |
push @Colors, ($curve->{'color'} ne '' ? |
push @Colors, ($curve->{'color'} ne '' ? |
$curve->{'color'} : |
$curve->{'color'} : |
$plot{'fgcolor'} ); |
$plot{'fgcolor'} ); |
} |
} |
# set term |
# set term |
$gnuplot_input .= 'set term gif '; |
$gnuplot_input .= 'set term gif '; |
Line 445 sub write_gnuplot_file {
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Line 466 sub write_gnuplot_file {
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$gnuplot_input .= ($plot{'border'} eq 'on'? |
$gnuplot_input .= ($plot{'border'} eq 'on'? |
'set border'.$/ : |
'set border'.$/ : |
'set noborder'.$/ ); # title, xlabel, ylabel |
'set noborder'.$/ ); # title, xlabel, ylabel |
{ |
$gnuplot_input .= "set output\n"; |
$gnuplot_input .= <<"ENDLABELS"; |
$gnuplot_input .= "set title \"$title\"\n" if (defined($title)) ; |
set output |
$gnuplot_input .= "set xlabel \"$xlabel\"\n" if (defined($xlabel)); |
set title "$title" |
$gnuplot_input .= "set ylabel \"$ylabel\"\n" if (defined($ylabel)); |
set xlabel "$xlabel" |
if (defined(%axis)) { |
set ylabel "$ylabel" |
$gnuplot_input .= "set xrange \[$axis{'xmin'}:$axis{'xmax'}\]\n"; |
set xrange \[$axis{'xmin'}:$axis{'xmax'}\] |
$gnuplot_input .= "set yrange \[$axis{'ymin'}:$axis{'ymax'}\]\n"; |
set yrange \[$axis{'ymin'}:$axis{'ymax'}\] |
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ENDLABELS |
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} |
} |
# Key |
# Key |
if (defined($key{'pos'})) { |
if (defined(%key)) { |
$gnuplot_input .= 'set key '.$key{'pos'}.' '; |
$gnuplot_input .= 'set key '.$key{'pos'}.' '; |
if ($key{'title'} ne '') { |
if ($key{'title'} ne '') { |
$gnuplot_input .= 'title "'.$key{'title'}.'" '; |
$gnuplot_input .= 'title "'.$key{'title'}.'" '; |
Line 464 ENDLABELS
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Line 483 ENDLABELS
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$gnuplot_input .= ($key{'box'} eq 'on' ? 'box ' : 'nobox ').$/; |
$gnuplot_input .= ($key{'box'} eq 'on' ? 'box ' : 'nobox ').$/; |
} else { |
} else { |
$gnuplot_input .= 'set nokey'.$/; |
$gnuplot_input .= 'set nokey'.$/; |
} |
} |
# labels |
# labels |
my $label; |
my $label; |
foreach $label (@labels) { |
foreach $label (@labels) { |
Line 500 ENDLABELS
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Line 519 ENDLABELS
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} |
} |
$gnuplot_input .= $/.$datatext; |
$gnuplot_input .= $/.$datatext; |
return $gnuplot_input; |
return $gnuplot_input; |
# print $fh $gnuplot_input; |
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} |
} |
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1; |
1; |