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Drop seaborn dependency

This commit is contained in:
Lucas Verney 2016-03-08 17:12:02 +01:00
parent fb89761857
commit e0ed43ca9e
3 changed files with 10563 additions and 10426 deletions
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20780
Examples.ipynb
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207
replot/__init__.py
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@ -7,6 +7,7 @@ import math
import os
import shutil
import cycler
import matplotlib as mpl
# Use "agg" backend automatically if no display is available.
try:
@ -15,7 +16,6 @@ except KeyError:
mpl.use("agg")
import matplotlib.pyplot as plt
import numpy as np
import seaborn.apionly as sns
from replot import adaptive_sampling
from replot import exceptions as exc
@ -25,8 +25,22 @@ from replot import tools
__VERSION__ = "0.0.1"
# Constants
#############
# CONSTANTS #
#############
_DEFAULT_GROUP = "_"
# Default palette is husl palette with length 10 color cycle
_DEFAULT_PALETTE = [
(0.9677975592919913, 0.44127456009157356, 0.5358103155058701),
(0.8616090647292522, 0.536495730113334, 0.19548899031476086),
(0.6804189127793346, 0.6151497514677574, 0.19405452111445337),
(0.46810256823426105, 0.6699492535792404, 0.1928958739904499),
(0.20125317221201128, 0.6907920815379025, 0.47966761189275336),
(0.21044753832183283, 0.6773105080456748, 0.6433941168468681),
(0.2197995660828324, 0.6625157876850336, 0.7732093159317209),
(0.433280341176423, 0.6065273407962815, 0.9585467098271748),
(0.8004936186423958, 0.47703363533737203, 0.9579547196007522),
(0.962272393509669, 0.3976451968965351, 0.8008274363432775)]
class Figure():
@ -37,8 +51,9 @@ class Figure():
def __init__(self,
xlabel="", ylabel="", title="",
xrange=None, yrange=None,
palette="hls", max_colors=10,
legend=None, savepath=None, grid=None):
palette=_DEFAULT_PALETTE,
legend=None, savepath=None, grid=None,
custom_mpl_rc=None):
"""
Build a :class:`Figure` object.
@ -52,9 +67,8 @@ class Figure():
:param palette: Color palette to use (optional). Defaults to a safe \
palette with compatibility with colorblindness and black and \
white printing.
:type palette: Either a palette name (``str``) or a built palette.
:param max_colors: Number of colors to use in the palette (optional). \
Defaults to 10.
:type palette: Either a list of colors (as RGB tuples) or a \
:mod:`seaborn` ``color_palette`` object.
:param legend: Whether to use a legend or not (optional). Defaults to \
no legend, except if labels are found on provided plots. \
``False`` to disable completely. ``None`` for default \
@ -69,6 +83,8 @@ class Figure():
``((y_position, x_position), symbol, (rowspan, colspan))``. \
No check for grid validity is being made. You can set it to \
``False`` to disable it completely.
:param custom_mpl_rc: An optional dict to overload some \
:mod:`matplotlib` rc params.
.. note:: If you use group plotting, ``xlabel``, ``ylabel``, \
``legend``, ``xrange``, ``yrange`` and ``zrange`` will be \
@ -84,11 +100,11 @@ class Figure():
self.xrange = xrange
self.yrange = yrange
self.palette = palette
self.max_colors = max_colors
self.legend = legend
self.plots = collections.defaultdict(list) # keys are groups
self.grid = grid
self.savepath = savepath
self.custom_mpl_rc = None
def __enter__(self):
return self
@ -439,6 +455,12 @@ class Figure():
if self.yrange is not None:
axis.set_ylim(*self.yrange)
def _build_cycler_palette(self):
"""
TODO
"""
return cycler.cycler("color", self.palette)
def _render(self):
"""
Actually render the figure.
@ -447,37 +469,31 @@ class Figure():
"""
figure = None
# Use custom matplotlib context
with mpl_custom_rc_context():
# Tweak matplotlib to use seaborn
sns.set()
# Plot using specified color palette
with sns.color_palette(palette=self.palette,
n_colors=self.max_colors):
# Create figure
figure, axes = self._grid()
# Add plots
for group_ in self.plots:
# Get the axis corresponding to current group
try:
axis = axes[group_]
except KeyError:
# If not found, plot in the default group
axis = axes[_DEFAULT_GROUP]
# Skip this plot if the axis is None
if axis is None:
continue
# Plot
for plot_ in self.plots[group_]:
tmp_plots = axis.plot(*(plot_[0]), **(plot_[1]))
# Do not clip line at the axes boundaries to prevent
# extremas from being cropped.
for tmp_plot in tmp_plots:
tmp_plot.set_clip_on(False)
# Set ax properties
self._set_axes_properties(axis, group_)
# Do not forget to restore matplotlib state, in order not to
# interfere with it.
sns.reset_orig()
palette = self._build_cycler_palette()
with mpl_custom_rc_context(palette=palette,
rc=self.custom_mpl_rc):
# Create figure
figure, axes = self._grid()
# Add plots
for group_ in self.plots:
# Get the axis corresponding to current group
try:
axis = axes[group_]
except KeyError:
# If not found, plot in the default group
axis = axes[_DEFAULT_GROUP]
# Skip this plot if the axis is None
if axis is None:
continue
# Plot
for plot_ in self.plots[group_]:
tmp_plots = axis.plot(*(plot_[0]), **(plot_[1]))
# Do not clip line at the axes boundaries to prevent
# extremas from being cropped.
for tmp_plot in tmp_plots:
tmp_plot.set_clip_on(False)
# Set ax properties
self._set_axes_properties(axis, group_)
return figure
@ -494,7 +510,7 @@ def plot(data, **kwargs):
ylabel="some y label",
title="A title for the figure",
legend="best",
palette=replot.sns.color_palette("husl", 2))
palette=seaborn.color_palette("husl", 2))
"""
# Init new figure
figure = Figure(**kwargs)
@ -523,11 +539,106 @@ def plot(data, **kwargs):
figure.show()
def mpl_custom_rc_context():
def _mpl_custom_rc_scaling():
"""
Scale the elements of the figure to get a better rendering.
Settings borrowed from
[Seaborn](https://github.com/mwaskom/seaborn/blob/master/seaborn/rcmod.py#L344).
:returns: a :mod:`matplotlib` ``rcParams``-like dict.
"""
rc_params = {
"figure.figsize": np.array([8, 5.5]),
# Set misc font sizes
"font.size": 12,
"axes.labelsize": 11,
"axes.titlesize": 12,
"xtick.labelsize": 10,
"ytick.labelsize": 10,
"legend.fontsize": 10,
# Set misc linewidth
"grid.linewidth": 1,
"lines.linewidth": 1.75,
"patch.linewidth": .3,
"lines.markersize": 7,
"lines.markeredgewidth": 1.75,
# Disable ticks
"xtick.major.width": 0,
"ytick.major.width": 0,
"xtick.minor.width": 0,
"ytick.minor.width": 0,
# Set ticks padding
"xtick.major.pad": 7,
"ytick.major.pad": 7,
}
return rc_params
def _mpl_custom_rc_axes_style():
"""
Set the style of the plot and the axes. Things like set a grid etc.
Settings borrowed from
[Seaborn](https://github.com/mwaskom/seaborn/blob/master/seaborn/rcmod.py#L344).
:returns: a :mod:`matplotlib` ``rcParams``-like dict.
"""
# Use dark gray instead of black for better readability on screen
dark_gray = ".15"
rc_params = {
# Colors
"figure.facecolor": "white",
"text.color": dark_gray,
# Legend
"legend.frameon": False, # No frame around legend
"legend.numpoints": 1,
"legend.scatterpoints": 1,
# Ticks
"xtick.direction": "out",
"ytick.direction": "out",
"xtick.color": dark_gray,
"ytick.color": dark_gray,
"lines.solid_capstyle": "round",
# Axes
"axes.axisbelow": True,
"axes.linewidth": 0,
"axes.labelcolor": dark_gray,
"axes.grid": True,
"axes.facecolor": "EAEAF2",
"axes.edgecolor": "white",
# Grid
"grid.linestyle": "-",
"grid.color": "white"
}
return rc_params
def _mpl_custom_rc_palette(palette):
"""
Set the palette used on the plots.
Settings borrowed from
[Seaborn](https://github.com/mwaskom/seaborn/blob/master/seaborn/rcmod.py#L344).
:param palette: The palette to use, as a :mod:`cycler` ``cycler`` object.
:returns: a :mod:`matplotlib` ``rcParams``-like dict.
"""
rc_params = {
"image.cmap": "Greys",
"axes.prop_cycle": palette,
"patch.facecolor": [v["color"] for v in palette][0]
}
return rc_params
def mpl_custom_rc_context(palette, rc=None):
"""
Overload ``matplotlib.rcParams`` to enable advanced features if \
available. In particular, use LaTeX if available.
:param palette: The palette to use, as a :mod:`cycler` ``cycler`` object.
:param rc: An optional dict to overload some :mod:`matplotlib` rc params.
:returns: A ``matplotlib.rc_context`` object to use in a ``with`` \
statement.
"""
@ -539,6 +650,20 @@ def mpl_custom_rc_context():
# LateX dependencies are all available
custom_rc["text.usetex"] = True
custom_rc["text.latex.unicode"] = True
# Use LaTeX default font family
# See https://stackoverflow.com/questions/17958485/matplotlib-not-using-latex-font-while-text-usetex-true
custom_rc["font.family"] = "serif"
custom_rc["font.serif"] = "cm"
# Scale everything
custom_rc.update(_mpl_custom_rc_scaling())
# Set axes style
custom_rc.update(_mpl_custom_rc_axes_style())
# Set palette
custom_rc.update(_mpl_custom_rc_palette(palette))
# Overload if necessary
if rc is not None:
custom_rc.update(rc)
# Return a context object
return plt.rc_context(rc=custom_rc)

2
requirements.txt
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@ -1,3 +1,3 @@
matplotlib>=1.5.1
numpy>=1.10.4
seaborn>=0.7.0
cycler>=0.9.0