def _area_chart_demo():
""" demonstration of area chart
"""
table = DataTable()
table.add_column('Time')
table.add_column('Site 1')
table.add_column('Site 2')
table.add_row([ 4.00, 120, 500])
table.add_row([ 6.00, 270, 460])
table.add_row([ 8.30, 1260, 1120])
table.add_row([10.15, 2030, 540])
table.add_row([12.00, 520, 890])
table.add_row([18.20, 1862, 1500])
chart = AreaChart(table)
chart.set_horizontal_axis_column(0)
chart.haxis_title = 'Time'
chart.haxis_vmin = 0.0
chart.haxis_vmax = 20.0
chart.haxis_step = 5
#chart.save('area.png', QSize(400, 240), 100)
view = DialogViewer()
view.set_graph(chart)
view.resize(400, 240)
view.exec_()
def _line_chart_demo():
""" demonstration of line chart
"""
table = DataTable()
table.add_column('Time')
table.add_column('Site 1')
table.add_column('Site 2')
table.add_column('Site 3')
table.add_row([ 4.00, 120, 80, 400])
table.add_row([ 6.00, 270, 850, 320])
table.add_row([ 8.30, 50, 1200, 280])
table.add_row([10.15, 320, 1520, 510])
table.add_row([12.00, 150, 930, 1100])
table.add_row([18.20, 62, 1100, 240])
chart = LineChart(table)
chart.set_horizontal_axis_column(0)
chart.haxis_title = 'Time'
chart.haxis_vmin = 0.0
chart.haxis_vmax = 20.0
chart.haxis_step = 2
#chart.save('line.png', QSize(400, 240), 100)
view = DialogViewer()
view.set_graph(chart)
view.resize(400, 240)
view.exec_()