Buxfixes

- initialization error in plotcurveitem
 - performance fix for plotdataitem

graphicsItems/PlotCurveItem.py

@@ -195,7 +195,8 @@ class PlotCurveItem(GraphicsObject):
         for k in ['x', 'y']:
             data = kargs[k]
             if isinstance(data, list):
-                kargs['k'] = np.array(data)
+                data = np.array(data)
+                kargs[k] = data
             if not isinstance(data, np.ndarray) or data.ndim > 1:
                 raise Exception("Plot data must be 1D ndarray.")
             if 'complex' in str(data.dtype):

graphicsItems/PlotDataItem.py

@@ -322,8 +322,8 @@ class PlotDataItem(GraphicsObject):
         
         x,y = self.getData()
         
-        self.curve.setData(x=x, y=y, **curveArgs)
-        if curveArgs['pen'] is not None or curveArgs['brush'] is not None:
+        if curveArgs['pen'] is not None or (curveArgs['brush'] is not None and curveArgs['fillLevel'] is not None):
+            self.curve.setData(x=x, y=y, **curveArgs)
             self.curve.show()
         else:
             self.curve.hide()
@@ -331,8 +331,8 @@ class PlotDataItem(GraphicsObject):
             #curve.setParentItem(self)
             #self.curves.append(curve)
         
-        self.scatter.setData(x=x, y=y, **scatterArgs)
         if scatterArgs['symbol'] is not None:
+            self.scatter.setData(x=x, y=y, **scatterArgs)
             self.scatter.show()
         else:
             self.scatter.hide()