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"""This module provides functions for plotting traces."""
from functools import reduce
import holoviews as hv
from holoviews.operation.datashader import datashade
from public import public
from .trace import Trace
@public
def save_figure(figure, fname: str): # pragma: no cover
hv.save(figure, fname + ".html", fmt="html")
@public
def save_figure_png(figure, fname: str): # pragma: no cover
hv.save(figure, fname + ".png", fmt="png")
@public
def save_figure_svg(figure, fname: str): # pragma: no cover
hv.save(figure, fname + ".svg", fmt="svg")
@public
def plot_trace(trace: Trace, **kwargs): # pragma: no cover
line = hv.Curve((range(len(trace)), trace.samples), kdims="x", vdims="y", **kwargs)
return datashade(line, normalization="log")
@public
def plot_traces(*traces: Trace, **kwargs): # pragma: no cover
_cmaps = [
["lightblue", "darkblue"],
["lightcoral", "red"],
["lime", "green"],
["orange", "darkorange"],
["plum", "deeppink"],
["peru", "chocolate"],
["cyan", "darkcyan"],
]
dss = []
for i, trace in enumerate(traces):
line = hv.Curve(
(range(len(trace)), trace.samples), kdims="x", vdims="y", **kwargs
)
dss.append(datashade(line, normalization="log", cmap=_cmaps[i % len(_cmaps)]))
return reduce(lambda x, y: x * y, dss)
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