version 1.81, 2003/02/07 22:03:21
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version 1.90, 2003/09/19 20:05:29
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Line 34
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Line 34
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package Apache::lonplot; |
package Apache::lonplot; |
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use strict; |
use strict; |
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use warnings FATAL=>'all'; |
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no warnings 'uninitialized'; |
use Apache::File; |
use Apache::File; |
use Apache::response; |
use Apache::response; |
use Apache::lonxml; |
use Apache::lonxml; |
Line 112 my $words_test = sub {$_[0]=~s/\s+/
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Line 114 my $words_test = sub {$_[0]=~s/\s+/
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## ## |
## ## |
################################################################### |
################################################################### |
my @gnuplot_edit_order = |
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 |
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border align texwidth plottype/; |
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my $gnuplot_help_text = <<"ENDPLOTHELP"; |
my $gnuplot_help_text = <<"ENDPLOTHELP"; |
<p> |
<p> |
Line 221 my %gnuplot_defaults =
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Line 224 my %gnuplot_defaults =
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description => 'alignment for image in html', |
description => 'alignment for image in html', |
edit_type => 'choice', |
edit_type => 'choice', |
choices => ['left','right','center'] |
choices => ['left','right','center'] |
} |
}, |
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texwidth => { |
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default => '93', |
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test => $int_test, |
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description => 'Width of plot when printed (mm)', |
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edit_type => 'entry', |
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size => '5' |
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}, |
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plottype => { |
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default => 'Cartesian', |
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test => sub {$_[0]=~/^(Polar|Cartesian)$/}, |
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description => 'Plot type:', |
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edit_type => 'choice', |
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choices => ['Polar','Cartesian'] |
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}, |
); |
); |
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my %key_defaults = |
my %key_defaults = |
Line 274 my %label_defaults =
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Line 291 my %label_defaults =
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} |
} |
); |
); |
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my @tic_edit_order = ('location','mirror','start','increment','end'); |
my @tic_edit_order = ('location','mirror','start','increment','end', |
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'minorfreq'); |
my %tic_defaults = |
my %tic_defaults = |
( |
( |
location => { |
location => { |
default => 'border', |
default => 'border', |
test => sub {$_[0]=~/^(border|axis)$/}, |
test => sub {$_[0]=~/^(border|axis)$/}, |
description => 'Location of tick marks', |
description => 'Location of major tic marks', |
edit_type => 'choice', |
edit_type => 'choice', |
choices => ['border','axis'] |
choices => ['border','axis'] |
}, |
}, |
mirror => { |
mirror => { |
default => 'on', |
default => 'on', |
test => $onoff_test, |
test => $onoff_test, |
description => 'mirror ticks on opposite axis?', |
description => 'mirror tics on opposite axis?', |
edit_type => 'onoff' |
edit_type => 'onoff' |
}, |
}, |
start => { |
start => { |
default => '-10.0', |
default => '-10.0', |
test => $real_test, |
test => $real_test, |
description => 'Start ticks at', |
description => 'Start major tics at', |
edit_type => 'entry', |
edit_type => 'entry', |
size => '10' |
size => '10' |
}, |
}, |
increment => { |
increment => { |
default => '1.0', |
default => '1.0', |
test => $real_test, |
test => $real_test, |
description => 'Place a tick every', |
description => 'Place a major tic every', |
edit_type => 'entry', |
edit_type => 'entry', |
size => '10' |
size => '10' |
}, |
}, |
end => { |
end => { |
default => ' 10.0', |
default => ' 10.0', |
test => $real_test, |
test => $real_test, |
description => 'Stop ticks at ', |
description => 'Stop major tics at ', |
edit_type => 'entry', |
edit_type => 'entry', |
size => '10' |
size => '10' |
}, |
}, |
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minorfreq => { |
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default => '0', |
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test => $int_test, |
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description => 'Number of minor tics between major tic marks', |
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edit_type => 'entry', |
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size => '10' |
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}, |
); |
); |
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my @axis_edit_order = ('color','xmin','xmax','ymin','ymax'); |
my @axis_edit_order = ('color','xmin','xmax','ymin','ymax'); |
Line 441 my %curve_defaults =
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Line 466 my %curve_defaults =
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my (%plot,%key,%axis,$title,$xlabel,$ylabel,@labels,@curves,%xtics,%ytics); |
my (%plot,%key,%axis,$title,$xlabel,$ylabel,@labels,@curves,%xtics,%ytics); |
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sub start_gnuplot { |
sub start_gnuplot { |
%plot = (); %key = (); %axis = (); |
undef(%plot); undef(%key); undef(%axis); |
$title = undef; $xlabel = undef; $ylabel = undef; |
undef($title); undef($xlabel); undef($ylabel); |
$#labels = -1; $#curves = -1; |
undef(@labels); undef(@curves); |
%xtics = (); %ytics = (); |
undef(%xtics); undef(%ytics); |
# |
# |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result=''; |
my $result=''; |
Line 506 sub end_gnuplot {
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Line 531 sub end_gnuplot {
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ENDIMAGE |
ENDIMAGE |
} elsif ($target eq 'tex') { |
} elsif ($target eq 'tex') { |
&Apache::lonnet::ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps"); |
&Apache::lonnet::ssi("/cgi-bin/plot.gif?file=$filename.data&output=eps"); |
$result = '\graphicspath{{/home/httpd/perl/tmp/}}\includegraphics{'.&Apache::lonnet::unescape($filename).'.eps}'; |
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$result = '\graphicspath{{/home/httpd/perl/tmp/}}\includegraphics[width='.$plot{'texwidth'}.' mm]{'.&Apache::lonnet::unescape($filename).'.eps}'; |
} |
} |
} elsif ($target eq 'edit') { |
} elsif ($target eq 'edit') { |
$result.=&Apache::edit::tag_end($target,$token); |
$result.=&Apache::edit::tag_end($target,$token); |
Line 798 sub start_function {
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Line 824 sub start_function {
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my $result=''; |
my $result=''; |
if ($target eq 'web' || $target eq 'tex') { |
if ($target eq 'web' || $target eq 'tex') { |
if (exists($curves[-1]->{'data'})) { |
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.'); |
&Apache::lonxml::warning |
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('Use of the <b>curve function</b> tag precludes use of '. |
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' the <b>curve data</b> tag. '. |
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'The curve data tag will be omitted in favor of the '. |
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'curve function declaration.'); |
delete $curves[-1]->{'data'} ; |
delete $curves[-1]->{'data'} ; |
} |
} |
my $function = &Apache::lonxml::get_all_text("/function",$parser); |
my $function = &Apache::lonxml::get_all_text("/function",$parser); |
Line 834 sub start_data {
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Line 864 sub start_data {
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my $result=''; |
my $result=''; |
if ($target eq 'web' || $target eq 'tex') { |
if ($target eq 'web' || $target eq 'tex') { |
if (exists($curves[-1]->{'function'})) { |
if (exists($curves[-1]->{'function'})) { |
&Apache::lonxml::warning('Use of <data> precludes use of .'. |
&Apache::lonxml::warning |
'<function>. The <function> will be omitted in favor of '. |
('Use of the <b>curve function</b> tag precludes use of '. |
'the <data> declaration.'); |
' the <b>curve data</b> tag. '. |
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'The curve function tag will be omitted in favor of the '. |
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'curve data declaration.'); |
delete($curves[-1]->{'function'}); |
delete($curves[-1]->{'function'}); |
} |
} |
my $datatext = &Apache::lonxml::get_all_text("/data",$parser); |
my $datatext = &Apache::lonxml::get_all_text("/data",$parser); |
Line 860 sub start_data {
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Line 892 sub start_data {
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# Check that it's non-empty |
# Check that it's non-empty |
if (! defined($data[$i])) { |
if (! defined($data[$i])) { |
&Apache::lonxml::warning( |
&Apache::lonxml::warning( |
'undefined <data> value. Replacing with '. |
'undefined curve data value. Replacing with '. |
' pi/e = 1.15572734979092'); |
' pi/e = 1.15572734979092'); |
$data[$i] = 1.15572734979092; |
$data[$i] = 1.15572734979092; |
} |
} |
# Check that it's a number |
# Check that it's a number |
if (! &$real_test($data[$i]) & ! &$int_test($data[$i])) { |
if (! &$real_test($data[$i]) & ! &$int_test($data[$i])) { |
&Apache::lonxml::warning( |
&Apache::lonxml::warning( |
'Bad <data> value of '.$data[$i].' Replacing with '. |
'Bad curve data value of '.$data[$i].' Replacing with '. |
' pi/e = 1.15572734979092'); |
' pi/e = 1.15572734979092'); |
$data[$i] = 1.15572734979092; |
$data[$i] = 1.15572734979092; |
} |
} |
Line 955 sub set_defaults {
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Line 987 sub set_defaults {
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sub get_attributes{ |
sub get_attributes{ |
my ($values,$defaults,$parstack,$safeeval,$tag) = @_; |
my ($values,$defaults,$parstack,$safeeval,$tag) = @_; |
foreach my $attr (keys(%{$defaults})) { |
foreach my $attr (keys(%{$defaults})) { |
$values->{$attr} = |
if ($attr eq 'texwidth') { |
&Apache::lonxml::get_param($attr,$parstack,$safeeval); |
$values->{$attr} = |
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&Apache::lonxml::get_param($attr,$parstack,$safeeval,undef,1); |
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} else { |
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$values->{$attr} = |
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&Apache::lonxml::get_param($attr,$parstack,$safeeval); |
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} |
if ($values->{$attr} eq '' | !defined($values->{$attr})) { |
if ($values->{$attr} eq '' | !defined($values->{$attr})) { |
$values->{$attr} = $defaults->{$attr}->{'default'}; |
$values->{$attr} = $defaults->{$attr}->{'default'}; |
next; |
next; |
Line 997 sub write_gnuplot_file {
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Line 1034 sub write_gnuplot_file {
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# set output |
# set output |
$gnuplot_input .= "set output\n"; |
$gnuplot_input .= "set output\n"; |
} elsif ($target eq 'tex') { |
} elsif ($target eq 'tex') { |
$gnuplot_input .= "set term postscript eps monochrome solid\n"; |
$gnuplot_input .= "set term postscript eps monochrome solid \"Helvetica\" 25 \n"; |
$gnuplot_input .= "set output \"/home/httpd/perl/tmp/". |
$gnuplot_input .= "set output \"/home/httpd/perl/tmp/". |
&Apache::lonnet::unescape($filename).".eps\"\n"; |
&Apache::lonnet::unescape($filename).".eps\"\n"; |
} |
} |
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# cartesian or polar? |
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if (lc($plot{'plottype'}) eq 'polar') { |
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$gnuplot_input .= 'set polar'.$/; |
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} else { |
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# Assume Cartesian |
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} |
# grid |
# grid |
$gnuplot_input .= 'set grid'.$/ if ($plot{'grid'} eq 'on'); |
$gnuplot_input .= 'set grid'.$/ if ($plot{'grid'} eq 'on'); |
# border |
# border |
Line 1011 sub write_gnuplot_file {
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Line 1054 sub write_gnuplot_file {
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$gnuplot_input .= "set samples $plot{'samples'}\n"; |
$gnuplot_input .= "set samples $plot{'samples'}\n"; |
# title, xlabel, ylabel |
# title, xlabel, ylabel |
# titles |
# titles |
$gnuplot_input .= "set title \"$title\"\n" if (defined($title)) ; |
if ($target eq 'tex') { |
$gnuplot_input .= "set xlabel \"$xlabel\"\n" if (defined($xlabel)); |
$gnuplot_input .= "set title \"$title\" font \"Helvetica,25pt\"\n" if (defined($title)) ; |
$gnuplot_input .= "set ylabel \"$ylabel\"\n" if (defined($ylabel)); |
$gnuplot_input .= "set xlabel \"$xlabel\" font \"Helvetica,25pt\" \n" if (defined($xlabel)); |
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$gnuplot_input .= "set ylabel \"$ylabel\" font \"Helvetica,25pt\"\n" if (defined($ylabel)); |
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} else { |
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$gnuplot_input .= "set title \"$title\" \n" if (defined($title)) ; |
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$gnuplot_input .= "set xlabel \"$xlabel\" \n" if (defined($xlabel)); |
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$gnuplot_input .= "set ylabel \"$ylabel\" \n" if (defined($ylabel)); |
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} |
# tics |
# tics |
if (%xtics) { |
if (%xtics) { |
$gnuplot_input .= "set xtics $xtics{'location'} "; |
$gnuplot_input .= "set xtics $xtics{'location'} "; |
Line 1021 sub write_gnuplot_file {
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Line 1070 sub write_gnuplot_file {
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$gnuplot_input .= "$xtics{'start'}, "; |
$gnuplot_input .= "$xtics{'start'}, "; |
$gnuplot_input .= "$xtics{'increment'}, "; |
$gnuplot_input .= "$xtics{'increment'}, "; |
$gnuplot_input .= "$xtics{'end'}\n"; |
$gnuplot_input .= "$xtics{'end'}\n"; |
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if ($xtics{'minorfreq'} != 0) { |
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$gnuplot_input .= "set mxtics ".$xtics{'minorfreq'}."\n"; |
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} |
} |
} |
if (%ytics) { |
if (%ytics) { |
$gnuplot_input .= "set ytics $ytics{'location'} "; |
$gnuplot_input .= "set ytics $ytics{'location'} "; |
Line 1028 sub write_gnuplot_file {
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Line 1080 sub write_gnuplot_file {
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$gnuplot_input .= "$ytics{'start'}, "; |
$gnuplot_input .= "$ytics{'start'}, "; |
$gnuplot_input .= "$ytics{'increment'}, "; |
$gnuplot_input .= "$ytics{'increment'}, "; |
$gnuplot_input .= "$ytics{'end'}\n"; |
$gnuplot_input .= "$ytics{'end'}\n"; |
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if ($ytics{'minorfreq'} != 0) { |
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$gnuplot_input .= "set mytics ".$ytics{'minorfreq'}."\n"; |
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} |
} |
} |
# axis |
# axis |
if (%axis) { |
if (%axis) { |
Line 1048 sub write_gnuplot_file {
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Line 1103 sub write_gnuplot_file {
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my $label; |
my $label; |
foreach $label (@labels) { |
foreach $label (@labels) { |
$gnuplot_input .= 'set label "'.$label->{'text'}.'" at '. |
$gnuplot_input .= 'set label "'.$label->{'text'}.'" at '. |
$label->{'xpos'}.','.$label->{'ypos'}.' '.$label->{'justify'}.$/ ; |
$label->{'xpos'}.','.$label->{'ypos'}.' '.$label->{'justify'}.' font "Helvetica,25pt"'.$/ ; |
} |
} |
if ($target eq 'tex') { |
if ($target eq 'tex') { |
$gnuplot_input .="set size 1,".$plot{'height'}/$plot{'width'}*1.38; |
$gnuplot_input .="set size 1,".$plot{'height'}/$plot{'width'}*1.38; |
Line 1135 sub check_inputs {
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Line 1190 sub check_inputs {
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my $curve; |
my $curve; |
foreach $curve (@curves) { |
foreach $curve (@curves) { |
if (!defined($curve->{'function'})&&!defined($curve->{'data'})){ |
if (!defined($curve->{'function'})&&!defined($curve->{'data'})){ |
&Apache::lonxml::warning("One of the curves specified did not contain any <data> or <function> declarations\n"); |
&Apache::lonxml::warning("One of the curves specified did not contain any curve data or curve function declarations\n"); |
return ''; |
return ''; |
} |
} |
} |
} |