Heatmap
Sales Performance Heatmap
Dark theme heatmap showing sales by region and product
Output
Python
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.colors import LinearSegmentedColormap
from matplotlib.patches import FancyBboxPatch
fig, ax = plt.subplots(figsize=(12, 8), facecolor='#ffffff')
ax.set_facecolor('#ffffff')
np.random.seed(42)
regions = ['North', 'South', 'East', 'West', 'Central']
products = ['Product A', 'Product B', 'Product C', 'Product D', 'Product E', 'Product F']
data = np.random.randint(50, 500, (len(regions), len(products)))
colors = ['#1e293b', '#164e63', '#0891b2', '#c026d3', '#f5d0fe']
cmap = LinearSegmentedColormap.from_list('sales', colors, N=256)
cell_w, cell_h = 0.88, 0.82
for i in range(len(regions)):
for j in range(len(products)):
val = data[i, j]
rect = FancyBboxPatch((j - cell_w/2, i - cell_h/2), cell_w, cell_h,
boxstyle="round,pad=0.02,rounding_size=0.12",
facecolor=cmap(val/500), edgecolor='#e2e8f0', linewidth=1.5)
ax.add_patch(rect)
ax.text(j, i, f'${val}K', ha='center', va='center', color='#1e293b', fontsize=9, fontweight='bold')
ax.set_xlim(-0.5, len(products)-0.5)
ax.set_ylim(-0.5, len(regions)-0.5)
ax.set_aspect('equal')
ax.invert_yaxis()
ax.set_xticks(range(len(products)))
ax.set_yticks(range(len(regions)))
ax.set_xticklabels(products, rotation=45, ha='right', color='#64748b', fontsize=10, fontweight='500')
ax.set_yticklabels(regions, color='#1e293b', fontsize=10, fontweight='500')
sm = plt.cm.ScalarMappable(cmap=cmap, norm=plt.Normalize(0, 500))
cbar = plt.colorbar(sm, ax=ax, shrink=0.8, pad=0.02)
cbar.set_label('Sales ($K)', color='#1e293b', fontsize=11)
cbar.outline.set_edgecolor('#e2e8f0')
plt.setp(plt.getp(cbar.ax.axes, 'yticklabels'), color='#64748b')
for spine in ax.spines.values(): spine.set_visible(False)
ax.tick_params(length=0)
ax.set_title('Sales by Region & Product', fontsize=18, color='#1e293b', fontweight='bold', pad=20)
plt.tight_layout()
plt.show()
Library
Matplotlib
Category
Heatmaps & Density
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