def barGraphFeed(feed): name = feed.getAttribute("name") observations = feed.getElementsByTagName("observation") print " Feed %s has %d observations" % (name,len(observations)) data = [] for obs in observations: value = int(obs.getAttribute("value")) #print " val:%s (%s)" % (value, type(value)) data.insert(0,value/10) #data.reverse # remeber the feed is reversed print "Max Data: %s" % max(data) max_y = int(math.ceil(max(data)/100.0))*100 print "Max_y : %s" % max_y chart = StackedVerticalBarChart(180, 120, y_range=[0, max_y]) chart.set_bar_width(100.0/len(observations)) chart.set_bar_width(1.2) chart.add_data(data) lftAxisMax = max_y/100; print "lftAxisMax %s"%lftAxisMax #left_axis = range(0, lftAxisMax,(lftAxisMax/4.0)) left_axis = [] right_axis = [] for i in range(0,4+1): kw = (i*lftAxisMax/4.0) left_axis.append(kw) right_axis.append(kw*24) left_axis[0] = 'kW' # remove the first label right_axis[0] = 'kWh/d' # remove the first label chart.set_axis_labels(Axis.LEFT, left_axis) #chart.set_axis_labels(Axis.LEFT, right_axis) #chart.set_axis_labels(Axis.RIGHT, right_axis) chart.set_axis_labels(Axis.BOTTOM, ['','','','','','-18h','','','','','','-12h','','','','','','-6h','','','','','','*']) chart.set_title(name) # facebook colors chart.set_title_style('7f93bc',16) #chart.set_colours(['7f93bc']) chart.set_colours(['3b5998']) #darker blue #Colors colors=False if (colors): # Set the line colour to ... chart.set_colours(['FFFFFF']) # 0 here is the axis index ? 0 works for now chart.set_title_style('FFFFFF',16) chart.set_axis_style(0,'FFFFFF') chart.set_axis_style(1,'FFFFFF') chart.fill_linear_gradient(Chart.BACKGROUND,90,'000000',0.9,'007700',0.1) print chart.get_url() chart.download('%s-bar.png'%name)