h_simple.Fill(random.gauss(4, 3)) # easily set visual attributes h_simple.linecolor = 'blue' h_simple.fillcolor = 'green' h_simple.fillstyle = '/' # attributes may be accessed in the same way print h_simple.name print h_simple.title print h_simple.markersize # plot canvas = Canvas(width=700, height=500) canvas.SetLeftMargin(0.15) canvas.SetBottomMargin(0.15) canvas.SetTopMargin(0.10) canvas.SetRightMargin(0.05) h_simple.Draw() legend = Legend(1) legend.AddEntry(h_simple, style='F') legend.Draw() canvas.Modified() canvas.Update() # 2D and 3D histograms are handled in the same way # the constructor arguments are repetitions of #bins, left bound, right bound. h2d = Hist2D(10, 0, 1, 50, -40, 10, name='2d hist') h3d = Hist3D(3, -1, 4, 10, -1000, -200, 2, 0, 1, name='3d hist') # variable-width bins may be created by passing the bin edges directly:
if plots_paths.get(topLevelPath, {}):
break
topLevelPath = os.path.dirname(topLevelPath)
# top level path empty so break
if not topLevelPath:
break
plots_path = plots_paths.get(topLevelPath, {})
# create new canvas
canvasConfigs = copy.copy(plots_config.get('canvas', {}))
canvasConfigs.update(plots_path.get('canvas', {}))
canvas = Canvas(canvasConfigs.get('width', 500),
canvasConfigs.get('height', 500))
canvas.SetRightMargin(canvasConfigs.get('rightmargin', 0.1))
canvas.SetBottomMargin(canvasConfigs.get('bottommargin', 0.2))
canvas.SetLeftMargin(canvasConfigs.get('leftmargin', 0.2))
if canvasConfigs.get('logy', False) == True:
canvas.set_logy()
# create a legend (an entry for each group)
legendConfigs = copy.copy(plots_config.get('legend', {}))
legendConfigs.update(plots_path.get('legend', {}))
legend_numColumns = legendConfigs.pop('num columns', 1)
legend = Legend(len(h), **legendConfigs)
legend.SetNColumns(legend_numColumns)
# scale the histograms before doing anything else
for hgroup in h:
if groups.get(hgroup.group).get('do not scale me', False):