graying out the intervals

rowers/interactiveplots.py

@@ -2114,7 +2114,7 @@ def interactive_streamchart(id=0,promember=0):
 
     return [script,div]
 
-def interactive_chart(id=0,promember=0):
+def interactive_chart(id=0,promember=0,intervaldata = {}):
     # Add hover to this comma-separated string and see what changes
     if (promember==1):
 	TOOLS = 'save,pan,box_zoom,wheel_zoom,reset,tap,hover,resize,crosshair'
@@ -2219,6 +2219,24 @@ def interactive_chart(id=0,promember=0):
     plot.add_layout(LinearAxis(y_range_name="spmax",axis_label="SPM"),'right')
 
     plot.legend.location = "bottom_right"
+
+    # add shaded bar chart areas
+    intervaldf = pd.DataFrame(intervaldata)
+    intervaldf['itime'] = intervaldf['itime']*1.e3
+    intervaldf['time'] = intervaldf['itime'].cumsum()
+    intervaldf['time_r'] = intervaldf['time'] +intervaldf['itime'].shift(-1)
+    intervaldf['value'] = 45
+    mask = intervaldf['itype'] == 3
+    intervaldf.loc[mask,'value'] = 10
+    intervaldf['bottom'] = 10
+
+    intervalsource = ColumnDataSource(
+        intervaldf
+        )
+    
+    plot.quad(left='time',top='value',bottom='bottom',
+              right='time_r',source=intervalsource,color='gray',
+              y_range_name='spmax',fill_alpha=0.2,line_alpha=0.2)
  
     script, div = components(plot)