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- #!/usr/bin/python
- # -*- coding: utf-8 -*-
- """
- Python-nvd3 is a Python wrapper for NVD3 graph library.
- NVD3 is an attempt to build re-usable charts and chart components
- for d3.js without taking away the power that d3.js gives you.
- Project location : https://github.com/areski/python-nvd3
- """
- from .NVD3Chart import NVD3Chart, TemplateMixin
- class lineChart(TemplateMixin, NVD3Chart):
- """
- A line chart or line graph is a type of chart which displays information
- as a series of data points connected by straight line segments.
- Python example::
- from nvd3 import lineChart
- chart = lineChart(name="lineChart", x_is_date=False, x_axis_format="AM_PM")
- xdata = range(24)
- ydata = [0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 4, 3, 3, 5, 7, 5, 3, 16, 6, 9, 15, 4, 12]
- ydata2 = [9, 8, 11, 8, 3, 7, 10, 8, 6, 6, 9, 6, 5, 4, 3, 10, 0, 6, 3, 1, 0, 0, 0, 1]
- extra_serie = {"tooltip": {"y_start": "There are ", "y_end": " calls"}}
- chart.add_serie(y=ydata, x=xdata, name='sine', extra=extra_serie)
- extra_serie = {"tooltip": {"y_start": "", "y_end": " min"}}
- chart.add_serie(y=ydata2, x=xdata, name='cose', extra=extra_serie)
- chart.buildhtml()
- print(chart.content)
- Javascript generated:
- .. include:: ./examples/lineChart.html
- See the source code of this page, to see the underlying javascript.
- """
- CHART_FILENAME = "./linechart.html"
- template_chart_nvd3 = NVD3Chart.template_environment.get_template(CHART_FILENAME)
- def __init__(self, **kwargs):
- super(lineChart, self).__init__(**kwargs)
- self.model = 'lineChart'
- height = kwargs.get('height', 450)
- width = kwargs.get('width', None)
- if kwargs.get('x_is_date', False):
- self.set_date_flag(True)
- self.create_x_axis('xAxis',
- format=kwargs.get('x_axis_format', '%d %b %Y'),
- date=True)
- self.set_custom_tooltip_flag(True)
- else:
- if kwargs.get('x_axis_format') == 'AM_PM':
- self.x_axis_format = format = 'AM_PM'
- else:
- format = kwargs.get('x_axis_format', 'r')
- self.create_x_axis('xAxis', format=format,
- custom_format=kwargs.get('x_custom_format',
- False))
- self.create_y_axis(
- 'yAxis',
- format=kwargs.get('y_axis_format', '.02f'),
- custom_format=kwargs.get('y_custom_format', False))
- # must have a specified height, otherwise it superimposes both chars
- self.set_graph_height(height)
- if width:
- self.set_graph_width(width)
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