Changeset 507

Timestamp:

06/03/09 17:58:17 (3 years ago)

Author:

mosttw

Message:

Fixed speedgraph to not break with no data.

Files:

• trunk/software/rb/gui/speedgraph.py (modified) (3 diffs)

trunk/software/rb/gui/speedgraph.py

@@ -18 +18 @@
 import gtk
 
-
 DATA_WINDOW = 500 # How many updates to graph
+STAT_SCALE = 1.0 / 32767.0 # Motor stat coefficient
+# Motor stats are multiplied by this number, which should put them in a -1..1 range.
 
 class SpeedGraph(gtk.DrawingArea):
@@ -74 +75 @@
         
         def draw_line(self, context, center_y, start_x, step_x, color, data):
+                if not data:
+                        return
                 x = start_x
                 context.move_to(x, center_y + (data.pop(0) * center_y))
@@ -89 +92 @@
                 lst, rst = self.drive.getstat()
                 new_data = [lt, rt, ls, rs]
-                new_data += [s / 32767.0 for s in (lst + rst)]
+                new_data += [s * STAT_SCALE for s in (lst + rst)]
                 
                 for datum, list in zip(new_data, self.data):