only run the hack for larger graphs

diff --git a/lib/Text/Tradition/Collation.pm b/lib/Text/Tradition/Collation.pm
index 8a05147..39dd83e 100644 (file)
--- a/lib/Text/Tradition/Collation.pm
+++ b/lib/Text/Tradition/Collation.pm
@@ -486,6 +486,8 @@ sub as_dot {
     my $startrank = $opts->{'from'} if $opts;
     my $endrank = $opts->{'to'} if $opts;
     my $color_common = $opts->{'color_common'} if $opts;
+    my $STRAIGHTENHACK = !$startrank && !$endrank && $self->end->rank 
+       && $self->end->rank > 100;
     
     # Check the arguments
     if( $startrank ) {
@@ -529,7 +531,7 @@ sub as_dot {
        if( $endrank ) {
                $dot .= "\t\"#SUBEND#\" [ label=\"...\" ];\n";  
        }
-       if( !$startrank && !$endrank ) {
+       if( $STRAIGHTENHACK ) {
                ## HACK part 1
                $dot .= "\tsubgraph { rank=same \"#START#\" \"#SILENT#\" }\n";  
                $dot .= "\t\"#SILENT#\" [ color=white,penwidth=0,label=\"\" ];"
@@ -593,7 +595,7 @@ sub as_dot {
         $dot .= "\t\"$node\" -> \"#SUBEND#\" $varopts;";
        }
        # HACK part 2
-       if( !$startrank && !$endrank ) {
+       if( $STRAIGHTENHACK ) {
                $dot .= "\t\"#END#\" -> \"#SILENT#\" [ color=white,penwidth=0 ];\n";
        }