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| version 1.9, 2003/12/08 18:36:58 | version 1.17, 2024/06/02 10:52:01 |
|---|---|
| Line 34 use strict; | Line 34 use strict; |
| ### For standalone operation, set $loncapa to 0, and comment out both uses | ### For standalone operation, set $loncapa to 0, and comment out both uses |
| my $loncapa=1; | my $loncapa=1; |
| use lib '/home/httpd/lib/perl'; | use lib '/home/httpd/lib/perl'; |
| use LONCAPA::loncgi(); | use LONCAPA::loncgi; |
| use LONCAPA; | |
| use GD; | use GD; |
| use PostScript::Simple; | use PostScript::Simple; |
| Line 66 sub unescape { | Line 66 sub unescape { |
| my ($id,$width,$ps,$png,@JMEstring); | my ($id,$width,$ps,$png,@JMEstring); |
| if ($loncapa) { | if ($loncapa) { |
| $id=$ENV{'QUERY_STRING'}; | $id=$ENV{'QUERY_STRING'}; |
| $width = $ENV{'cgi.'.$id.'.WIDTH'}; | $width = $Apache::lonnet::env{'cgi.'.$id.'.WIDTH'}; |
| if (!$width) { $width = 400; } | if (!$width) { $width = 400; } |
| $png = $ENV{'cgi.'.$id.'.PNG'}; | $png = $Apache::lonnet::env{'cgi.'.$id.'.PNG'}; |
| $ps = $ENV{'cgi.'.$id.'.PS'}; | $ps = $Apache::lonnet::env{'cgi.'.$id.'.PS'}; |
| @JMEstring=&unescape($ENV{'cgi.'.$id.'.JME'}); | @JMEstring=&unescape($Apache::lonnet::env{'cgi.'.$id.'.JME'}); |
| } else { | } else { |
| @JMEstring = @ARGV; | @JMEstring = @ARGV; |
| $width = shift @JMEstring; | $width = shift @JMEstring; |
| Line 131 if ($png) { | Line 131 if ($png) { |
| ysize => $ymax-$ymin+2, | ysize => $ymax-$ymin+2, |
| clip => 1, | clip => 1, |
| eps => 1, | eps => 1, |
| color => 0, | colour => 1, |
| units => "cm"); | units => "cm"); |
| } | } |
| my %valence = ("C",4,"N",3,"P",3,"O",2,"S",2); | my %electrons = ("C",4,"N",5,"P",5,"O",6,"S",6); |
| my %font_width = (" ",250,"+",564,"-",500,"0",500,"1",500,"2",500,"3",500,"4",500,"5",500,"6",500,"7",500,"8",500,"9",500,"A",722,"B",667,"C",667,"D",722,"E",611,"F",556,"G",722,"H",722,"I",333,"J",389,"K",722,"L",611,"M",889,"N",722,"O",722,"P",556,"Q",722,"R",667,"S",556,"T",611,"U",722,"V",722,"W",944,"X",722,"Y",722,"Z",611,"a",444,"b",500,"c",444,"d",500,"e",444,"f",333,"g",500,"h",500,"i",278,"j",278,"k",500,"l",278,"m",778,"n",500,"o",500,"p",500,"q",500,"r",333,"s",389,"t",278,"u",500,"v",500,"w",722,"x",500,"y",500,"z",444); | my %font_width = (" ",250,"+",564,"-",500,"0",500,"1",500,"2",500,"3",500,"4",500,"5",500,"6",500,"7",500,"8",500,"9",500,"A",722,"B",667,"C",667,"D",722,"E",611,"F",556,"G",722,"H",722,"I",333,"J",389,"K",722,"L",611,"M",889,"N",722,"O",722,"P",556,"Q",722,"R",667,"S",556,"T",611,"U",722,"V",722,"W",944,"X",722,"Y",722,"Z",611,"a",444,"b",500,"c",444,"d",500,"e",444,"f",333,"g",500,"h",500,"i",278,"j",278,"k",500,"l",278,"m",778,"n",500,"o",500,"p",500,"q",500,"r",333,"s",389,"t",278,"u",500,"v",500,"w",722,"x",500,"y",500,"z",444); |
| my $font = '/usr/share/fonts/default/Type1/n021003l.pfb'; | my $font = '/home/httpd/html/adm/fonts/DejaVuSerif-Roman.ttf'; |
| my $pointsize = 20; | my $pointsize = 20; |
| my ($ptsize,@bounds); | my ($ptsize,@bounds); |
| if ($png) { | if ($png) { |
| Line 333 foreach my $struct (@all_structs) { | Line 333 foreach my $struct (@all_structs) { |
| if ($formula ne "C" || $sign ne ""|| | if ($formula ne "C" || $sign ne ""|| |
| $adjacent[$i] < 2 || ($adjacent[$i] == 2 && $bonds[$i] == 4) || (@aldehyde[$i] == 1 && @bonds[$i] == 3)) { | $adjacent[$i] < 2 || ($adjacent[$i] == 2 && $bonds[$i] == 4) || (@aldehyde[$i] == 1 && @bonds[$i] == 3)) { |
| # don't show C, unless charged, terminal, or linear | # don't show C, unless charged, terminal, or linear |
| my $nH = 0; | if (exists $electrons{$formula}) { |
| if (exists $valence{$formula}) { | # add H atoms to satisfy minimum valence |
| $nH = $valence{$formula} - $bonds[$i]; | my $e = $electrons{$formula}; |
| $nH += (($charge eq "")? 1 : $charge) if ($sign eq "+"); | $e -= (($charge eq "")? 1 : $charge) if ($sign eq "+"); |
| $nH -= (($charge eq "")? 1 : $charge) if ($sign eq "-"); | $e += (($charge eq "")? 1 : $charge) if ($sign eq "-"); |
| my $valence = 4 - abs($e-4); | |
| my $nH = $valence - @bonds[$i]; | |
| $formula .= "H" if ($nH > 0); | |
| $formula .= $nH if ($nH > 1); | |
| } | } |
| $formula .= "H" if ($nH > 0); | |
| $formula .= $nH if ($nH > 1); | |
| my @formula = $formula=~ /[A-Z][a-z]?\d*/g; | my @formula = $formula=~ /[A-Z][a-z]?\d*/g; |
| my $PI = 3.1415; | my $PI = 3.1415; |
| Line 394 foreach my $struct (@all_structs) { | Line 396 foreach my $struct (@all_structs) { |
| (shift @formula) =~ /([A-Z][a-z]?)(\d*)/; | (shift @formula) =~ /([A-Z][a-z]?)(\d*)/; |
| my $carrige = $x[$i]-stringWidth($1)/2; | my $carrige = $x[$i]-stringWidth($1)/2; |
| $carrige = printElement ($1,$2,$carrige,$y[$i]); | $carrige = printElement ($1,$2,$carrige,$y[$i]); |
| my $y = (@formula > 0) ? $y[$i] + fm2cm(800) : $y[$i]; | my $y = (@formula > 0) ? $y[$i] + fm2cm(900) : $y[$i]; |
| $carrige = | $carrige = |
| (@formula > 0) ? $x[$i]-stringWidth($1)/2 : $carrige; | (@formula > 0) ? $x[$i]-stringWidth($1)/2 : $carrige; |
| foreach (@formula) { | foreach (@formula) { |
| Line 407 foreach my $struct (@all_structs) { | Line 409 foreach my $struct (@all_structs) { |
| (shift @formula) =~ /([A-Z][a-z]?)(\d*)/; | (shift @formula) =~ /([A-Z][a-z]?)(\d*)/; |
| my $carrige = $x[$i]-stringWidth($1)/2; | my $carrige = $x[$i]-stringWidth($1)/2; |
| $carrige = printElement ($1,$2,$carrige,$y[$i]); | $carrige = printElement ($1,$2,$carrige,$y[$i]); |
| my $y = (@formula > 0) ? $y[$i] + fm2cm(-800) : $y[$i]; | my $y = (@formula > 0) ? $y[$i] + fm2cm(-900) : $y[$i]; |
| $carrige = | $carrige = |
| (@formula > 0) ? $x[$i]-stringWidth($1)/2 : $carrige; | (@formula > 0) ? $x[$i]-stringWidth($1)/2 : $carrige; |
| foreach (@formula) { | foreach (@formula) { |
| Line 429 if ($loncapa) { | Line 431 if ($loncapa) { |
| print "Content-type: image/png\n\n"; | print "Content-type: image/png\n\n"; |
| print $im->png; | print $im->png; |
| } elsif ($ps) { | } elsif ($ps) { |
| my $psfile = "/home/httpd/perl/tmp/".$id.'.eps'; | my $psfile = LONCAPA::tempdir().$id.'.eps'; |
| $im->output($psfile); | $im->output($psfile); |
| print "Content-type: text/html\n\n"; | print "Content-type: text/html\n\n"; |
| print (<<HTML) | print (<<HTML) |
| Line 550 sub printCharge_png { | Line 552 sub printCharge_png { |
| my ($sign,$charge,$x,$y) = @_; | my ($sign,$charge,$x,$y) = @_; |
| my $yy = 662; | my $yy = 662; |
| $sign = "–" if ($sign eq "-"); # replace by n-dash | $sign = "−" if ($sign eq "-"); # replace by n-dash |
| $charge = "" if ($charge == 1); | $charge = "" if ($charge == 1); |
| $charge .= $sign; | $charge .= $sign; |