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[area-basic] letsplot implementation #240
Description
Activity
- added a parent issue
on Dec 6, 2025 Attempt 1/3
Technical Approach
- Imports:
import pandas as pd, from lets_plot import ( - Plot function:
ggplot - Config: color=#306998
Status
- PR: feat(letsplot): implement area-basic #308
- File:
plots/letsplot/area/area-basic/default.py - Workflow: 19995637996
- Imports:
🧪 Test Results (PR #308)
Python:
📊 Plot Preview (Python 3.13)
letsplot (default) - NEW
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🧪 Test Results (PR #308)
Python:
📊 Plot Preview (Python 3.13)
letsplot (default) - UPDATE
Before After View version history (2 versions)
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AI Review - Attempt 1/3
Quality Evaluation
Evaluator Score Verdict Claude 91/100 approve Criteria Checklist
- VQ-001: Axes labeled correctly (X: "Month", Y: "Sales")
- VQ-002: Visual clarity - grid is subtle via theme_minimal()
- VQ-003: Elements clear - filled area with good alpha (0.7) and visible line
- VQ-004: No overlap - labels are readable, no text collision
- VQ-005: Legend N/A - single series, no legend needed
- VQ-006: Colorblind safe - uses single blue color (#306998)
- VQ-007: Image size correct - 1600x900 base with scale=3 = 4800x2700px
- VQ-008: Title present and centered ("Basic Area Chart")
- CQ-001 N/A: Type hints not required for plot scripts (KISS style)
- CQ-002 N/A: Docstrings not required for plot scripts (KISS style)
- CQ-003 N/A: Input validation not required for plot scripts (uses embedded data)
- CQ-004 N/A: Error messages not required for plot scripts
- CQ-005 N/A: Magic numbers acceptable in plot scripts
- CR-001: Data accurate - uses correct month/sales data per spec
- CR-002: Spec compliance - implements basic area chart as specified
- CR-003 N/A: Edge cases not applicable for static plot scripts
Issues Found
None. The implementation correctly follows the spec and letsplot library guidelines.
Positive Highlights
- Clean code structure: Uses KISS style as required - simple imports, data, plot, save pattern
- Proper letsplot idioms: Uses geom_area() with appropriate aesthetics
- Correct figure sizing: Follows the 4800x2700 target with scale=3 export
- Good visual design: Subtle grid via theme_minimal(), readable axis text sizes
- Data matches spec: Uses the exact month/sales data from the specification
AI Feedback for Next Attempt
Not applicable - implementation is approved.
Verdict: APPROVED
The letsplot implementation of area-basic meets all quality criteria. The code is clean, follows library conventions, and produces a visually clear area chart that matches the specification requirements.
- added a commit that references this issue
on Dec 6, 2025 Merged
letsplot implementation for
area-basichas been merged!
🚀 Auto-merged by pyplots CI
[area-basic] letsplot Implementation
Parent Issue: #201
Spec:
specs/area-basic.mdLibrary: letsplot
Feature Branch:
plot/area-basicAttempt History
Attempts will be documented below as comments.