feat(letsplot): implement icicle-basic

[github-actions]

Implementation: icicle-basic - letsplot

Implements the letsplot version of icicle-basic.

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

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🤖 impl-generate workflow

[claude]

AI Review - Attempt 1/3

Image Description

The plot displays a horizontal icicle chart representing a file system hierarchy. At the top is a large dark blue (Python blue #306998) rectangle labeled "root" spanning the full width. Below it, three yellow (#FFD43B) rectangles represent level 1 folders: "Documents", "Media", and "Projects", sized proportionally to their values. Level 2 shows light blue (#4B8BBE) rectangles for subfolders: "Work", "Personal" (under Documents), "Photos", "Videos" (under Media), and "Python", "Web" (under Projects). Level 3 contains gray (#646464) rectangles for the deepest items, though most labels are hidden due to space constraints - only "Clips" is visible. A legend on the right shows "Level" with colors 0-3. The title reads "File System · icicle-basic · letsplot · pyplots.ai". White borders separate all rectangles clearly.

Quality Score: 88/100

Criteria Checklist

Visual Quality (35/40 pts)

• VQ-01: Text Legibility (9/10) - Title and most labels readable, level 3 labels appropriately hidden for small rectangles
• VQ-02: No Overlap (8/8) - No overlapping text, labels only shown where space permits
• VQ-03: Element Visibility (8/8) - Rectangles well-sized, clear white borders separate elements
• VQ-04: Color Accessibility (5/5) - Blue-yellow-gray palette is colorblind-safe
• VQ-05: Layout Balance (3/5) - Good use of canvas but some empty space on right side and bottom
• VQ-06: Axis Labels (0/2) - N/A for icicle charts (no axes needed, but criterion still applies)
• VQ-07: Grid & Legend (2/2) - Legend well-placed, no grid needed for this chart type

Spec Compliance (23/25 pts)

• SC-01: Plot Type (8/8) - Correct icicle chart with horizontal orientation (top-to-bottom)
• SC-02: Data Mapping (5/5) - Parent-child relationships correctly mapped via spatial adjacency
• SC-03: Required Features (5/5) - Shows hierarchy levels, proportional sizing, color by level
• SC-04: Data Range (3/3) - All hierarchy levels visible
• SC-05: Legend Accuracy (2/2) - Level legend correctly shows 0-3
• SC-06: Title Format (0/2) - Title uses "File System · icicle-basic · letsplot" but should be "icicle-basic · letsplot · pyplots.ai"

Data Quality (18/20 pts)

• DQ-01: Feature Coverage (7/8) - Shows 4 hierarchy levels with varying sizes, but some level 3 items lack visible labels
• DQ-02: Realistic Context (7/7) - File system example is realistic and relatable
• DQ-03: Appropriate Scale (4/5) - Values are reasonable for file sizes (MB implied), though root value doesn't equal sum of children

Code Quality (9/10 pts)

• CQ-01: KISS Structure (3/3) - Linear structure with data → processing → plot → save
• CQ-02: Reproducibility (2/3) - Data is deterministic but no explicit seed comment; acceptable since no random data
• CQ-03: Clean Imports (2/2) - All imports are used
• CQ-04: No Deprecated API (1/1) - Modern lets-plot API
• CQ-05: Output Correct (1/1) - Saves as plot.png and plot.html

Library Features (3/5 pts)

• LF-01: Uses distinctive library features (3/5) - Uses geom_rect and geom_text with ggplot grammar, but doesn't leverage lets-plot's interactive features in PNG output

Strengths

• Excellent implementation of icicle chart using geom_rect and manual position calculation
• Smart label visibility logic based on rectangle width and label length
• Good color scheme using Python brand colors that distinguishes hierarchy levels clearly
• Clean white borders effectively separate adjacent rectangles
• Appropriate font sizing by level for better readability

Weaknesses

• Title format incorrect: should be "icicle-basic · letsplot · pyplots.ai" without the "File System" prefix
• Some wasted whitespace on right and bottom of canvas could be better utilized
• "Personal" label at level 2 is missing from the visible output (rectangle exists but label hidden)

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 horizontal icicle chart representing a file system hierarchy. At the top is a large dark blue rectangle labeled "root" (level 0). Below it are three yellow rectangles for "Documents", "Media", and "Projects" (level 1), sized proportionally to their values. Level 2 shows light blue rectangles for subfolders: Work, Personal (under Documents), Photos, Videos (under Media), and Python, Web (under Projects). The deepest level 3 shows gray rectangles for items like Clips and ML (visible labels), while many level 3 labels are hidden due to narrow widths. White borders separate all rectangles. A legend on the right shows levels 0-3 with corresponding colors. The title "icicle-basic · letsplot · pyplots.ai" appears in the top left.

Quality Score: 90/100

Criteria Checklist

Visual Quality (35/40 pts)

• VQ-01: Text Legibility (9/10) - Title is clear at 24pt, level labels are readable. Some level 3 labels appropriately hidden for narrow rectangles.
• VQ-02: No Overlap (8/8) - No overlapping text; labels intelligently hidden when rectangles are too narrow
• VQ-03: Element Visibility (8/8) - Rectangles are well-sized with clear white borders separating them
• VQ-04: Color Accessibility (5/5) - Blue/yellow/gray palette is colorblind-safe with good contrast
• VQ-05: Layout Balance (3/5) - Good use of canvas but plot could extend closer to edges; some empty space at bottom
• VQ-06: Axis Labels (0/2) - N/A for icicle charts (no axes expected), but spec says hide axes which is done correctly
• VQ-07: Grid & Legend (2/2) - No grid (appropriate), legend well-placed on right

Spec Compliance (23/25 pts)

• SC-01: Plot Type (8/8) - Correct icicle chart with horizontal orientation (root at top)
• SC-02: Data Mapping (5/5) - Parent-child relationships correctly shown through spatial adjacency
• SC-03: Required Features (5/5) - Hierarchical structure, proportional sizing, color by level all present
• SC-04: Data Range (3/3) - All hierarchy levels (0-3) visible
• SC-05: Legend Accuracy (0/2) - Legend shows "Level" with 0-3 which is functional but could be more descriptive
• SC-06: Title Format (2/2) - Correct format: "icicle-basic · letsplot · pyplots.ai"

Data Quality (19/20 pts)

• DQ-01: Feature Coverage (7/8) - Shows 4 levels of hierarchy with varying sizes; good variety in node sizes
• DQ-02: Realistic Context (7/7) - File system with folders/files is a realistic, neutral scenario
• DQ-03: Appropriate Scale (5/5) - File sizes in reasonable ranges (50-400 units)

Code Quality (10/10 pts)

• CQ-01: KISS Structure (3/3) - Linear flow: imports → data → calculations → plot → save
• CQ-02: Reproducibility (3/3) - Deterministic data (no random values)
• 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 (1/1) - Saves as plot.png and plot.html

Library Features (3/5 pts)

• LF-01: Uses distinctive library features (3/5) - Uses ggplot grammar with geom_rect and geom_text, scale_fill_manual, but icicle isn't a native lets-plot chart type so it's manually constructed

Strengths

• Clean hierarchical visualization with clear parent-child relationships through spatial adjacency
• Intelligent label visibility logic that hides labels for narrow rectangles to prevent overlap
• Good color scheme with Python-themed colors (blue/yellow) that are colorblind-safe
• Proper horizontal orientation with root at top as specified
• Well-structured code using stack-based traversal instead of recursion

Weaknesses

• Legend could be more descriptive (e.g., "Hierarchy Level" instead of just "Level")
• Some empty space at the bottom of the canvas could be better utilized
• Several level 3 labels are hidden (Reports, Contracts, Letters, Receipts, 2024, 2023, Movies, DataViz, Frontend, Backend) - while this prevents overlap, it reduces information density

Verdict: APPROVED