[Dot] Allow different rankdir for subgraph cluster

Ported Issue from Mantis Original ID: 1247 Reported By: Pander

SEVERITY: MINOR Submitted: 2008-01-23 17:23:18

OS: --

VERSION: 2.17

DESCRIPTION

Allow different rankdir, e.g. LR, for a subgraph (cluster) when rankdir for the rest of the graph is in this case TB.

STEPS TO REPRODUCE

digraph "test" { rankdir=TB a -> b subgraph cluster_c { rankdir=LR d -> e } }