From 879345355e58f062e0b5158ebfb64e8338151fd1 Mon Sep 17 00:00:00 2001
From: Josha von Gizycki <josha.von.gizycki@triology.de>
Date: Thu, 17 Jan 2019 13:12:40 +0100
Subject: [PATCH] change rankdir based on number of connected nodes

---
 src/wanijo/instance/viz.clj | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/wanijo/instance/viz.clj b/src/wanijo/instance/viz.clj
index 48e9a35..c9daf0a 100644
--- a/src/wanijo/instance/viz.clj
+++ b/src/wanijo/instance/viz.clj
@@ -17,8 +17,13 @@
         relationships-in (map (fn [{:keys [link source schema]}]
                                 [(:uuid source) :> (:uuid instance)
                                  {:label (:name link)}])
-                              (:links-in instance))]
-    (-> [[(:uuid instance) {:label (:name instance)
+                              (:links-in instance))
+        rankdir (if (or (> (count in-nodes) 7)
+                        (> (count out-nodes) 7))
+                  "LR"
+                  "TD")]
+    (-> [{:rankdir rankdir}
+         [(:uuid instance) {:label (:name instance)
                             :shape "cylinder"}]]
         (into out-nodes)
         (into in-nodes)