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48 lines
1.9 KiB
Python
48 lines
1.9 KiB
Python
# SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
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# SPDX-License-Identifier: Apache-2.0
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from collections import OrderedDict
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import pyecharts.options as opts
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from pyecharts.charts import Line
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def draw_line_chart(file_name, title, x_label, y_label, data_series, range_list):
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"""
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draw line chart and save to file.
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:param file_name: abs/relative file name to save chart figure
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:param title: chart title
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:param x_label: x-axis label
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:param y_label: y-axis label
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:param data_series: a dict {"name": data}. data is a dict.
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:param range_list: a list of x-axis range
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"""
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line = Line()
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# echarts do not support minus number for x axis, convert to string
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_range_list = [str(x) for x in range_list]
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line.add_xaxis(_range_list)
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for item in data_series:
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_data = OrderedDict.fromkeys(_range_list, None)
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for key in data_series[item]:
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_data[str(key)] = data_series[item][key]
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_data = list(_data.values())
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try:
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legend = item + ' (max: {:.02f})'.format(max([x for x in _data if x]))
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except TypeError:
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legend = item
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line.add_yaxis(legend, _data, is_smooth=True, is_connect_nones=True,
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label_opts=opts.LabelOpts(is_show=False))
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line.set_global_opts(
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datazoom_opts=opts.DataZoomOpts(range_start=0, range_end=100),
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title_opts=opts.TitleOpts(title=title, pos_left='center'),
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legend_opts=opts.LegendOpts(pos_top='10%', pos_left='right', orient='vertical'),
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tooltip_opts=opts.TooltipOpts(trigger='axis'),
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xaxis_opts=opts.AxisOpts(type_='category', name=x_label, splitline_opts=opts.SplitLineOpts(is_show=True)),
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yaxis_opts=opts.AxisOpts(type_='value', name=y_label,
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axistick_opts=opts.AxisTickOpts(is_show=True),
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splitline_opts=opts.SplitLineOpts(is_show=True)),
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)
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line.render(file_name)
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