X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b31cbeb974904ba251cde0926a43917e575897e9..64fa6f167ebb404e5441eddcee5bbd0808466d7a:/wxPython/wx/lib/plot.py

diff --git a/wxPython/wx/lib/plot.py b/wxPython/wx/lib/plot.py
index ea44480451..5fabf66063 100644
--- a/wxPython/wx/lib/plot.py
+++ b/wxPython/wx/lib/plot.py
@@ -689,10 +689,9 @@ class PlotCanvas(wx.Window):
     def ScrollUp(self, units):
         """Move view up number of axis units."""
         self.last_PointLabel = None        #reset pointLabel
-        if self.last_draw is not None:
-            graphics, xAxis, yAxis= self.last_draw
-            yAxis= (yAxis[0]+units, yAxis[1]+units)
-            self.Draw(graphics,xAxis,yAxis)
+        if self.BeenDrawn():
+            self._drawCmd.scrollAxisY(units, self._ySpec)
+            self._draw()
         
     def GetXY(self,event):
         """Takes a mouse event and returns the XY user axis values."""