Python to generate nice looking SVG graph http://pygal.org/
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1.8 KiB

Data
====
value_formatter
---------------
You can specifiy how the values are displayed on the tooltip using a lambda function.
The code below shows the values to 2 decimal places.
.. pygal-code::
chart = pygal.Line()
chart.add('line', [.070106781, 1.414213562, 3.141592654])
chart.value_formatter = lambda x: "%.2f" % x
x_value_formatter
-----------------
Same on x axis for xy like charts:
.. pygal-code::
chart = pygal.XY()
chart.add('line', [(12, 31), (8, 28), (89, 12)])
chart.x_value_formatter = lambda x: '%s%%' % x
print_values
------------
When using pygal without javascript for printing for example you can chose to activate this option to print all values as text.
.. pygal-code::
chart = pygal.Bar(js=[], print_values=True)
chart.add('line', [0, 12, 31, 8, 28, 0])
print_zeroes
------------
zero values are hidden by default but you can use this option to print them anyway.
.. pygal-code::
chart = pygal.Bar(js=[], print_values=True, print_zeroes=True)
chart.add('line', [0, 12, 31, 8, 28, 0])
value_font_size
---------------
.. pygal-code::
chart = pygal.Bar(js=[], print_values=True, value_font_size=24)
chart.add('line', [0, 12, 31, 8, 28, 0])
human_readable
--------------
Display values in human readable form:
.. code-block:: c
1 230 000 -> 1.23M
.00 098 7 -> 987ยต
.. pygal-code::
chart = pygal.Line(human_readable=True)
chart.add('line', [0, .0002, .0005, .00035])
no_data_text
------------
Text to display instead of the graph when no data is supplied:
.. pygal-code::
chart = pygal.Line()
chart.add('line', [])
.. pygal-code::
chart = pygal.Line(no_data_text='No result found')
chart.add('line', [])
no_data_font_size
-----------------
.. pygal-code::
chart = pygal.Line(no_data_font_size=32)
chart.add('line', [])