#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""bar: bar chart demo."""
from figrecipe.styles import load_style
[docs]
def plot_bar(plt, rng, ax=None):
"""Bar chart demo with grouped bars and legend.
Demonstrates: ax.bar() with SCITEX color palette and legend
"""
import numpy as np
if ax is None:
fig, ax = plt.subplots()
else:
fig = ax.get_figure() if hasattr(ax, "get_figure") else ax.fig
# Get SCITEX color palette
style = load_style()
palette = style.get("colors", {}).get("palette", [])
colors = [tuple(v / 255.0 for v in c) for c in palette[:3]]
# Generate grouped bar data
categories = ["A", "B", "C", "D"]
x = np.arange(len(categories))
width = 0.25
# Three groups with legend
for i, (label, color) in enumerate(zip(["2022", "2023", "2024"], colors)):
values = rng.integers(3, 10, len(categories))
ax.bar(x + i * width, values, width, label=label, color=color, id=f"bar_{i}")
ax.set_xlabel("Category")
ax.set_ylabel("Value")
ax.set_title("bar")
ax.set_xticks(x + width)
ax.set_xticklabels(categories)
ax.legend()
return fig, ax
# EOF