pyviz: autoscale_view does nothing if there are no nodes

2011-05-10 14:42:20 +01:00
parent 22efca3d83
commit e8a2d1f6d5
1 changed files with 2 additions and 0 deletions
--- a/src/visualizer/visualizer/core.py
+++ b/src/visualizer/visualizer/core.py
@@ -1126,6 +1126,8 @@ class Visualizer(gobject.GObject):
        __IPYTHON__.runcode = types.MethodType(runcode, __IPYTHON__)                

    def autoscale_view(self):
+        if not self.nodes:
+            return
        self._update_node_positions()
        positions = [node.get_position() for node in self.nodes.itervalues()]
        min_x, min_y = min(x for (x,y) in positions), min(y for (x,y) in positions)