Gauge Chart

Social Media Reach

Audience engagement metric with coral viral theme

Output
Social Media Reach
Python
import matplotlib.pyplot as plt
from matplotlib.patches import Wedge, Circle, Polygon
import numpy as np

reach = 847000
target = 1000000
value = (reach / target) * 100

bg_color = '#ffffff'
track_color = '#f3f4f6'
arc_color = '#F5276C'
text_color = '#1f2937'
dim_color = '#9ca3af'

start_angle, end_angle = -30, 210
sweep = end_angle - start_angle

fig, ax = plt.subplots(figsize=(10, 8), facecolor=bg_color)
ax.set_facecolor(bg_color)
ax.set_xlim(-1.4, 1.4)
ax.set_ylim(-0.5, 1.4)
ax.set_aspect('equal')
ax.axis('off')

ax.add_patch(Wedge((0.01, -0.01), 1.0, start_angle, end_angle, width=0.15, facecolor='#000000', edgecolor='none', alpha=0.03))
ax.add_patch(Wedge((0, 0), 1.0, start_angle, end_angle, width=0.15, facecolor=track_color, edgecolor='none'))

value_pct = value / 100
value_angle = start_angle + (1 - value_pct) * sweep
for r_off, w_off, alpha in [(0.03, 0.04, 0.15), (0.015, 0.02, 0.35), (0, 0, 0.95)]:
    ax.add_patch(Wedge((0, 0), 1.0 + r_off, value_angle, end_angle, width=0.15 + w_off, facecolor=arc_color, edgecolor='none', alpha=alpha))

labels = ['0', '250K', '500K', '750K', '1M']
for i, label in enumerate(labels):
    pct = i / 4
    angle = np.radians(end_angle - pct * sweep)
    ax.plot([0.87*np.cos(angle), 0.80*np.cos(angle)], [0.87*np.sin(angle), 0.80*np.sin(angle)], color='#d1d5db', linewidth=2)
    ax.text(0.72*np.cos(angle), 0.72*np.sin(angle), label, fontsize=9, color=dim_color, ha='center', va='center')

needle_angle = np.radians(end_angle - value_pct * sweep)
nx, ny = 0.62 * np.cos(needle_angle), 0.62 * np.sin(needle_angle)
perp = needle_angle + np.pi/2
bx1, by1 = 0.035 * np.cos(perp), 0.035 * np.sin(perp)

ax.add_patch(Polygon([(nx+0.01, ny-0.01), (bx1+0.01, by1-0.01), (-bx1+0.01, -by1-0.01)], facecolor='#000000', edgecolor='none', alpha=0.1))
ax.add_patch(Polygon([(nx, ny), (bx1, by1), (-bx1, -by1)], facecolor=text_color, edgecolor='none'))

ax.add_patch(Circle((0.01, -0.01), 0.09, facecolor='#000000', edgecolor='none', alpha=0.08))
for r, c, a in [(0.10, arc_color, 0.2), (0.08, '#ffffff', 1), (0.06, arc_color, 0.9)]:
    ax.add_patch(Circle((0, 0), r, facecolor=c, edgecolor='none', alpha=a))

ax.text(0, -0.22, '847K', fontsize=52, fontweight='bold', color=text_color, ha='center', va='center')
ax.text(0, -0.40, 'IMPRESSIONS', fontsize=13, color=dim_color, ha='center', va='center', fontweight='500')
ax.text(0, -0.56, f'{value:.0f}% of 1M goal', fontsize=12, color=arc_color, ha='center', va='center', fontweight='600')
ax.text(0, 1.22, 'Social Reach', fontsize=18, fontweight='bold', color=text_color, ha='center', va='center')

plt.tight_layout()
plt.show()
Library

Matplotlib

Category

Part-to-Whole

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