""" Guide renderers for various kinds of axes that can be added to
Bokeh plots
"""
from __future__ import absolute_import
from ..core.properties import abstract
from ..core.properties import (Int, Float, String, Enum, Datetime, Auto, Instance,
Tuple, Either, Include, Override)
from ..core.property_mixins import LineProps, TextProps
from .renderers import GuideRenderer
from .tickers import Ticker, BasicTicker, LogTicker, CategoricalTicker, DatetimeTicker
from .formatters import (TickFormatter, BasicTickFormatter, LogTickFormatter,
CategoricalTickFormatter, DatetimeTickFormatter)
@abstract
[docs]class Axis(GuideRenderer):
""" A base class that defines common properties for all axis types.
``Axis`` is not generally useful to instantiate on its own.
"""
bounds = Either(Auto, Tuple(Float, Float), Tuple(Datetime, Datetime), help="""
Bounds for the rendered axis. If unset, the axis will span the
entire plot in the given dimension.
""")
x_range_name = String('default', help="""
A particular (named) x-range to use for computing screen
locations when rendering an axis on the plot. If unset, use the
default x-range.
""")
y_range_name = String('default', help="""
A particular (named) y-range to use for computing screen
locations when rendering an axis on the plot. If unset, use the
default y-range.
""")
ticker = Instance(Ticker, help="""
A Ticker to use for computing locations of axis components.
""")
formatter = Instance(TickFormatter, help="""
A TickFormatter to use for formatting the visual appearance
of ticks.
""")
axis_label = String(default='', help="""
A text label for the axis, displayed parallel to the axis rule.
.. note::
LaTeX notation is not currently supported; please see
:bokeh-issue:`647` to track progress or contribute.
""")
axis_label_standoff = Int(default=5, help="""
The distance in pixels that the axis labels should be offset
from the tick labels.
""")
axis_label_props = Include(TextProps, help="""
The %s of the axis label.
""")
axis_label_text_font_size = Override(default={'value': "10pt"})
axis_label_text_font_style = Override(default="italic")
major_label_standoff = Int(default=5, help="""
The distance in pixels that the major tick labels should be
offset from the associated ticks.
""")
major_label_orientation = Either(Enum("horizontal", "vertical"), Float, help="""
What direction the major label text should be oriented. If a i
number is supplied, the angle of the text is measured from horizontal.
""")
major_label_props = Include(TextProps, help="""
The %s of the major tick labels.
""")
major_label_text_align = Override(default="center")
major_label_text_baseline = Override(default="alphabetic")
major_label_text_font_size = Override(default={'value': "8pt"})
axis_props = Include(LineProps, help="""
The %s of the axis line.
""")
major_tick_props = Include(LineProps, help="""
The %s of the major ticks.
""")
major_tick_in = Int(default=2, help="""
The distance in pixels that major ticks should extend into the
main plot area.
""")
major_tick_out = Int(default=6, help="""
The distance in pixels that major ticks should extend out of the
main plot area.
""")
minor_tick_props = Include(LineProps, help="""
The %s of the minor ticks.
""")
minor_tick_in = Int(default=0, help="""
The distance in pixels that minor ticks should extend into the
main plot area.
""")
minor_tick_out = Int(default=4, help="""
The distance in pixels that major ticks should extend out of the
main plot area.
""")
@abstract
[docs]class ContinuousAxis(Axis):
""" A base class for all numeric, non-categorical axes types.
``ContinuousAxis`` is not generally useful to instantiate on its own.
"""
pass
[docs]class LinearAxis(ContinuousAxis):
""" An axis that picks nice numbers for tick locations on a
linear scale. Configured with a ``BasicTickFormatter`` by default.
"""
ticker = Override(default=lambda: BasicTicker())
formatter = Override(default=lambda: BasicTickFormatter())
[docs]class LogAxis(ContinuousAxis):
""" An axis that picks nice numbers for tick locations on a
log scale. Configured with a ``LogTickFormatter`` by default.
"""
ticker = Override(default=lambda: LogTicker())
formatter = Override(default=lambda: LogTickFormatter())
[docs]class CategoricalAxis(Axis):
""" An axis that picks evenly spaced tick locations for a
collection of categories/factors.
"""
ticker = Override(default=lambda: CategoricalTicker())
formatter = Override(default=lambda: CategoricalTickFormatter())
[docs]class DatetimeAxis(LinearAxis):
""" An LinearAxis that picks nice numbers for tick locations on
a datetime scale. Configured with a ``DatetimeTickFormatter`` by
default.
"""
ticker = Override(default=lambda: DatetimeTicker())
formatter = Override(default=lambda: DatetimeTickFormatter())
