+ __PACKAGE__->new(
+ from => $p,
+ ($is_relative ? (map +($_ => $q->{$_}), qw/width height/) : (to => $q)),
+ );
+ },
+);
+
+LaTeX::TikZ::Functor->default_rule(
+ (__PACKAGE__) => sub {
+ my ($functor, $set, @args) = @_;
+ $set->new(map { $_ => $set->$_->$functor(@args) } qw/from to/)
+ }
+);