[watchers] bugfix dot to string functionality (#90)

splintered-reality · May 19, 2019 · 9a7872c · 9a7872c
1 parent 2a72bb9
commit 9a7872c
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diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -5,6 +5,7 @@ Changelog
 Forthcoming
 -----------
 * [conversions] bugfix msg_to_behaviour for decorators
+* [watchers] bugfix tree-watchers dot-graph to string functionality
 
 1.0.0 (2019-04-28)
 ------------------

diff --git a/py_trees_ros/trees.py b/py_trees_ros/trees.py
@@ -513,12 +513,15 @@ def deserialise_tree_recursively(msg):
                 target_directory=directory_name
             )
             xdot_program = py_trees.utilities.which('xdot')
+            xdot_program = None
 
             if not xdot_program:
-                console.logerror("No xdot viewer found, skipping display [hint: sudo apt install xdot]")
-                print(py_trees.display.dot_graph(root=root).to_string())
+                print("")
+                console.logerror("No xdot viewer found [hint: sudo apt install xdot]")
+                print("")
+                print(py_trees.display.dot_tree(root=root).to_string())
                 self.done = True
-                self.xdot_process = 1
+                self.xdot_process = None
                 return
 
             filename = py_trees.utilities.get_valid_filename(root.name) + '.dot'