update(area-basic): matplotlib — comprehensive quality review

Added viral blog post spike with annotation, improved data range, enhanced title

Author: MarkusNeusinger

plots/area-basic/implementations/matplotlib.py

@@ -1,7 +1,7 @@
-""" pyplots.ai
+"""pyplots.ai
 area-basic: Basic Area Chart
 Library: matplotlib 3.10.8 | Python 3.14.2
-Quality: 95/100 | Created: 2025-12-23
+Quality: /100 | Updated: 2026-02-11
 """
 
 import matplotlib.colors as mcolors
@@ -11,26 +11,29 @@
 from matplotlib.path import Path
 
 
-# Data - daily website visitors over a month with weekend dips
+# Data - daily website visitors over a month with weekend dips and a viral spike
 np.random.seed(42)
 days = np.arange(1, 31)
-base_visitors = 5000 + np.linspace(0, 2500, 30)  # Upward trend
+base_visitors = 3000 + np.linspace(0, 2000, 30)  # Upward trend from 3k to 5k
 weekend_effect = np.array([-1200 if d % 7 in (0, 6) else 0 for d in days])  # Weekend dips
-noise = np.random.randn(30) * 400
+noise = np.random.randn(30) * 300
 visitors = base_visitors + weekend_effect + noise
-visitors = np.clip(visitors, 2000, 10000)
+# Viral blog post spike on day 18
+visitors[17] = 8200
+visitors[18] = 6800
+visitors = np.clip(visitors, 1000, 10000)
 
 # Create plot (4800x2700 px)
 fig, ax = plt.subplots(figsize=(16, 9))
 
-y_max = visitors.max() * 1.15
+y_max = visitors.max() * 1.12
 
 # Gradient fill using imshow clipped to the area shape
 cmap = mcolors.LinearSegmentedColormap.from_list("area_grad", ["#d6e6f5", "#306998"])
 gradient = np.linspace(0, 1, 256).reshape(-1, 1)
 gradient = np.hstack([gradient, gradient])
 
-# Build clip path manually from fill_between polygon
+# Build clip path from area polygon
 verts = [(days[0], 0)]
 for d, v in zip(days, visitors, strict=True):
     verts.append((d, v))
@@ -49,10 +52,22 @@
 # Solid line on top
 ax.plot(days, visitors, color="#306998", linewidth=3, zorder=3)
 
+# Annotate the viral spike
+ax.annotate(
+    "Viral post",
+    xy=(18, visitors[17]),
+    xytext=(22, visitors[17] + 400),
+    fontsize=16,
+    color="#306998",
+    fontweight="bold",
+    arrowprops={"arrowstyle": "->", "color": "#306998", "lw": 2},
+    zorder=4,
+)
+
 # Labels and styling
 ax.set_xlabel("Day of Month", fontsize=20)
 ax.set_ylabel("Daily Visitors (count)", fontsize=20)
-ax.set_title("area-basic · matplotlib · pyplots.ai", fontsize=24)
+ax.set_title("Website Traffic · area-basic · matplotlib · pyplots.ai", fontsize=24)
 ax.tick_params(axis="both", labelsize=16)
 ax.grid(True, alpha=0.3, linestyle="--")
 

plots/area-basic/metadata/matplotlib.yaml

@@ -1,7 +1,7 @@
 library: matplotlib
 specification_id: area-basic
 created: '2025-12-23T00:46:12Z'
-updated: '2026-02-11T20:57:35Z'
+updated: '2026-02-11T22:20:05+00:00'
 generated_by: claude-opus-4-6
 workflow_run: 20447957143
 issue: 0
@@ -10,7 +10,7 @@ library_version: 3.10.8
 preview_url: https://storage.googleapis.com/pyplots-images/plots/area-basic/matplotlib/plot.png
 preview_thumb: https://storage.googleapis.com/pyplots-images/plots/area-basic/matplotlib/plot_thumb.png
 preview_html: null
-quality_score: 95
+quality_score: null
 impl_tags:
   dependencies: []
   techniques: