mirror of https://github.com/Kozea/pygal.git
Python to generate nice looking SVG graph
http://pygal.org/
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110 lines
2.1 KiB
110 lines
2.1 KiB
9 years ago
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Axis
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====
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include_x_axis
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--------------
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Scales are computed automaticaly between the min and the max values.
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You may want to always have the absissa in your graph:
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.. pygal-code::
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chart = pygal.Line(include_x_axis=True)
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chart.add('line', [.0002, .0005, .00035])
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inverse_y_axis
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--------------
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.. pygal-code::
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chart = pygal.Line(inverse_y_axis=True)
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chart.add('line', [.0002, .0005, .00035])
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range
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-----
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In pygal you can override automatic scaling by setting ``y_labels`` to the values you want, but if you want to change the scaling range and keep auto scaling in it, you can set a ``range`` which is a tuple containing the desired min and max:
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.. pygal-code::
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chart = pygal.Line(range=(.0001, .001))
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chart.add('line', [.0002, .0005, .00035])
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xrange
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------
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For xy graph xrange can be used for the x axis.
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.. pygal-code::
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chart = pygal.XY(xrange=(10, 30))
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chart.add('line', [(10, .0002), (15, .0005), (12, .00035)])
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secondary_range
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---------------
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For chart with two axis, the ``secondary_range`` defines the range for the secondary axis.
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.. pygal-code::
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chart = pygal.Line(secondary_range=(10, 25))
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chart.add('primary', [.0002, .0005, .00035])
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chart.add('secondary', [10, 15, 12], secondary=True)
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logarithmic
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-----------
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You can set the scale to be logarithmic:
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.. pygal-code::
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chart = pygal.Line(logarithmic=True)
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values = [1, 3, 43, 123, 1231, 23192]
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chart.x_labels = map(str, values)
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chart.add('log example', values)
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.. caution::
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Negative values are ignored
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min_scale
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---------
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You can specify the minimum number of scale graduation to generate with auto scaling if possible.
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.. pygal-code::
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chart = pygal.Line(min_scale=12)
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chart.add('line', [1, 10, 100, 50, 25])
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max_scale
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---------
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You can specify the maximum number of scale graduation to generate with auto scaling if possible.
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.. pygal-code::
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chart = pygal.Line(max_scale=6)
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chart.add('line', [1, 10, 100, 50, 25])
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order_min
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---------
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You can specify at which precision pygal should stop scaling (in log10) usefull in conjuction of the two previous properties:
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.. pygal-code::
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chart = pygal.Line(order_min=1)
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chart.add('line', [1, 10, 100, 50, 25])
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