feat(highcharts): implement crossword-basic

[github-actions]

Implementation: crossword-basic - highcharts

Implements the highcharts version of crossword-basic.

File: plots/crossword-basic/implementations/highcharts.py

Parent Issue: #3805

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🤖 impl-generate workflow

[claude]

AI Review - Attempt 1/3

Image Description

The plot displays a 15x15 crossword puzzle grid with white entry cells and black blocking cells. The title "crossword-basic · highcharts · pyplots.ai" appears at the top in bold black text. Row labels (A-O) are displayed on the left Y-axis, and column numbers (1-15) appear along the bottom X-axis. Black cells form a symmetric pattern typical of newspaper crosswords, with 180-degree rotational symmetry visible. Clue numbers (1-73) are positioned in the top-left corners of cells that start across or down words. The grid has clean black borders separating all cells, and the overall monochrome design follows traditional crossword conventions.

Quality Score: 91/100

Criteria Checklist

Visual Quality (36/40 pts)

• VQ-01: Text Legibility (9/10) - Title, axis labels, and clue numbers are readable, though clue numbers could be slightly larger
• VQ-02: No Overlap (8/8) - No overlapping text elements
• VQ-03: Element Visibility (8/8) - Grid cells clearly visible with appropriate sizing
• VQ-04: Color Accessibility (5/5) - Pure black and white, perfectly accessible
• VQ-05: Layout Balance (4/5) - Good use of canvas, slight imbalance in margins
• VQ-06: Axis Labels (1/2) - Row (A-O) and column (1-15) labels present but no descriptive labels
• VQ-07: Grid & Legend (1/2) - Clean grid lines, no legend needed

Spec Compliance (25/25 pts)

• SC-01: Plot Type (8/8) - Correct crossword grid visualization using heatmap
• SC-02: Data Mapping (5/5) - Grid cells correctly mapped with black/white values
• SC-03: Required Features (5/5) - White entry cells, black blocking cells, numbered positions all present
• SC-04: Data Range (3/3) - Full 15x15 grid displayed
• SC-05: Legend Accuracy (2/2) - No legend needed for this plot type
• SC-06: Title Format (2/2) - Correct format: crossword-basic · highcharts · pyplots.ai

Data Quality (18/20 pts)

• DQ-01: Feature Coverage (7/8) - Shows symmetric black cell pattern and numbered clues, demonstrates crossword structure well
• DQ-02: Realistic Context (7/7) - Authentic newspaper-style crossword layout
• DQ-03: Appropriate Scale (4/5) - 15x15 is standard size, 73 clues is realistic

Code Quality (9/10 pts)

• CQ-01: KISS Structure (3/3) - Linear flow: imports → data → plot → save
• CQ-02: Reproducibility (3/3) - Uses np.random.seed(42)
• CQ-03: Clean Imports (2/2) - All imports are used
• CQ-04: No Deprecated API (0/1) - Using older annotation syntax
• 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 Highcharts heatmap with annotations module, but could leverage more interactive features

Strengths

• Excellent implementation of crossword grid using Highcharts heatmap
• Perfect 180-degree rotational symmetry in black cell placement
• Clue numbering algorithm correctly identifies word start positions
• Clean monochrome design suitable for printing
• Square 1:1 aspect ratio as specified
• Both PNG and HTML outputs generated

Weaknesses

• Clue numbers could be slightly larger for better visibility at smaller display sizes
• Axis labels are functional but lack descriptive text (could be "Column" and "Row")

Verdict: APPROVED