feat(letsplot): implement parliament-basic

[github-actions]

Implementation: parliament-basic - letsplot

Implements the letsplot version of parliament-basic.

File: plots/parliament-basic/implementations/letsplot.py

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🤖 impl-generate workflow

[claude]

AI Review - Attempt 1/3

Image Description

The plot displays a semicircular parliament seat chart with 400 total seats arranged in 5 concentric arcs. Six political parties are represented with distinct colors: Progressive Party (blue, 85 seats), Center Alliance (yellow, 72 seats), Liberal Democrats (dark green, 58 seats), Green Coalition (bright green, 35 seats), Conservative Union (red, 95 seats), and Reform Movement (purple, 55 seats). The seats are rendered as individual dots arranged from left to right across the semicircle. A horizontal gray line marks the base (floor line), and below it displays "Total: 400 seats | Majority: 201". The legend on the right shows party names with seat counts. The title "parliament-basic · letsplot · pyplots.ai" is centered at the top.

Quality Score: 74/100

Criteria Checklist

Visual Quality (32/40 pts)

• VQ-01: Text Legibility (8/10) - Title and legend text are readable, but annotation text could be larger
• VQ-02: No Overlap (8/8) - No overlapping text, all elements clearly separated
• VQ-03: Element Visibility (7/8) - Seat dots are well-sized and visible, good alpha value
• VQ-04: Color Accessibility (3/5) - Two green colors (Liberal Democrats #2E8B57 and Green Coalition #32CD32) are too similar and could cause confusion
• VQ-05: Layout Balance (4/5) - Good use of canvas space, plot fills approximately 60% of area
• VQ-06: Axis Labels (0/2) - N/A for parliament chart (uses theme_void), but annotation provides context
• VQ-07: Grid & Legend (2/2) - Legend well-placed on right, no distracting grid

Spec Compliance (21/25 pts)

• SC-01: Plot Type (8/8) - Correct semicircular parliament seat chart
• SC-02: Data Mapping (5/5) - Seats correctly arranged by party in semicircular arcs
• SC-03: Required Features (3/5) - Has seats, legend with counts, majority line, but party ordering does not follow traditional left-to-right political spectrum
• SC-04: Data Range (3/3) - All 400 seats visible
• SC-05: Legend Accuracy (2/2) - Legend shows party names with accurate seat counts
• SC-06: Title Format (0/2) - Uses 'letsplot' instead of 'lets-plot' in title

Data Quality (8/20 pts)

• DQ-01: Feature Coverage (6/8) - Shows multiple parties with varying seat counts, demonstrates semicircular arrangement
• DQ-02: Realistic Context (0/7) - Uses political parties which violates content policy (spec notes mention political spectrum ordering). Should use generic categories like corporate board seats, committee members, or organization factions
• DQ-03: Appropriate Scale (2/5) - 400 seats is reasonable for a parliament, but party naming is problematic

Code Quality (8/10 pts)

• CQ-01: KISS Structure (0/3) - Uses a function calculate_parliament_seats() which violates KISS principle
• CQ-02: Reproducibility (3/3) - Data is deterministic (no random elements)
• CQ-03: Clean Imports (2/2) - All imports are used
• CQ-04: No Deprecated API (1/1) - Uses current lets-plot API
• CQ-05: Output Correct (2/2) - Saves as plot.png and plot.html

Library Features (5/5 pts)

• LF-01: Uses distinctive library features (5/5) - Good use of ggplot grammar, theme_void, geom_point, geom_hline, geom_text, coord_fixed, scale_color_manual

Strengths

• Excellent semicircular seat arrangement algorithm with proper concentric arcs
• Good use of lets-plot's grammar of graphics (ggplot, aes, geom_point, theme_void)
• Legend displays party names with seat counts as specified
• Majority threshold line and total seats annotation provide useful context
• Clean visual design with good proportions and spacing

Weaknesses

• Uses political party names which violates the content policy (should use neutral categories like board members, committee seats, or organization factions)
• Title uses 'letsplot' instead of 'lets-plot' (should be 'parliament-basic · lets-plot · pyplots.ai')
• Code uses a function definition which violates KISS principle (should be inline code)
• Two green colors are too similar and could cause accessibility issues for colorblind users

Verdict: REJECTED

[github-actions]

🔧 Repair Attempt 1/3

Applied fixes based on AI review feedback.

Status: Repair completed, re-triggering review...

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🤖 impl-repair

[claude]

AI Review - Attempt 2/3

Image Description

The plot displays a semicircular parliament seat chart with 5 concentric arcs of dots representing 400 total seats. The seats are colored by 6 divisions: Finance Committee (blue, 85 seats), Technology Board (yellow, 72 seats), Operations Division (orange, 58 seats), Research Council (light blue, 35 seats), Marketing Team (red, 95 seats), and Legal Advisory (purple, 55 seats). The title "parliament-basic · lets-plot · pyplots.ai" is centered at the top. A legend on the right shows each division with its seat count. A horizontal baseline/majority line is drawn at y=0, and annotation text below reads "Total: 400 seats | Majority: 201". The chart uses a white background with theme_void styling.

Quality Score: 91/100

Criteria Checklist

Visual Quality (36/40 pts)

• VQ-01: Text Legibility (9/10) - Title and legend text clearly readable, good font sizes
• VQ-02: No Overlap (8/8) - No overlapping text or elements
• VQ-03: Element Visibility (7/8) - Dots are well-sized with good spacing; outer rows could be slightly larger
• VQ-04: Color Accessibility (5/5) - Uses colorblind-safe palette with distinct hues
• VQ-05: Layout Balance (5/5) - Good canvas utilization, balanced layout with legend
• VQ-06: Axis Labels (0/2) - N/A for this plot type (theme_void removes axes appropriately)
• VQ-07: Grid & Legend (2/2) - Legend well-placed with seat counts, no distracting grid

Spec Compliance (23/25 pts)

• SC-01: Plot Type (8/8) - Correct semicircular parliament chart
• SC-02: Data Mapping (5/5) - Seats correctly mapped to dot positions
• SC-03: Required Features (4/5) - Has individual seats as dots, legend with counts, majority threshold; seats not strictly left-to-right by political spectrum (spec note)
• SC-04: Data Range (3/3) - All 400 seats displayed correctly
• SC-05: Legend Accuracy (2/2) - Legend labels correct with seat counts
• SC-06: Title Format (1/2) - Uses correct format but says "lets-plot" instead of "letsplot"

Data Quality (20/20 pts)

• DQ-01: Feature Coverage (8/8) - Shows multiple groups with varying seat counts
• DQ-02: Realistic Context (7/7) - Uses neutral board/committee scenario instead of political parties
• DQ-03: Appropriate Scale (5/5) - 400 total seats is realistic for a legislative body

Code Quality (9/10 pts)

• CQ-01: KISS Structure (3/3) - Linear script without functions/classes
• CQ-02: Reproducibility (2/3) - Deterministic data but no random seed for future variations
• CQ-03: Clean Imports (2/2) - All imports used appropriately
• CQ-04: No Deprecated API (1/1) - Uses current lets-plot API
• CQ-05: Output Correct (1/1) - Saves as plot.png and plot.html

Library Features (3/5 pts)

• LF-01: Uses lets-plot grammar of graphics (3/5) - Good use of ggplot, geom_point, theme_void, coord_fixed, but could leverage more interactive features

Strengths

• Excellent semicircular parliament visualization with clean concentric arcs
• Uses neutral non-political data context (board divisions instead of political parties)
• Colorblind-safe palette with distinct, visually appealing colors
• Legend clearly shows division names with seat counts in parentheses
• Includes majority threshold annotation and total seats information
• Good use of theme_void for clean presentation
• Proper aspect ratio with coord_fixed

Weaknesses

• Title uses "lets-plot" with hyphen instead of "letsplot" (one word)
• Seats are distributed by row rather than strictly left-to-right across the semicircle (minor deviation from political spectrum ordering mentioned in spec notes)

Verdict: APPROVED