feat(highcharts): implement scatter-color-mapped

[github-actions]

Implementation: scatter-color-mapped - javascript/highcharts

Implements the javascript/highcharts version of scatter-color-mapped.

File: plots/scatter-color-mapped/implementations/javascript/highcharts.js

Parent Issue: #2004

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🤖 impl-generate workflow

[claude]

AI Review - Attempt 1/3

Image Description

Light render (plot-light.png): Warm off-white (#FAF8F1) background. Title "scatter-color-mapped · javascript · highcharts · anyplot.ai" in dark bold text at top. X-axis "Reaction Temperature (°C)" (154–250 range), Y-axis "Reaction Duration (min)" (0–100 range), both in muted ink-soft with light horizontal grid lines only. 150 circular markers colored on a green→blue gradient (imprint_seq) representing Reaction Yield (%), with a manually-drawn vertical colorbar on the right (41–98% range, 5 ticks, rotated axis label "Reaction Yield (%)"). All text — title, axis titles, tick labels, colorbar ticks/label — is clearly legible against the light background; no light-on-light issues.

Dark render (plot-dark.png): Warm near-black (#1A1A17) background. Same layout: title, axis titles/ticks, and colorbar rendered in light ink-soft/ink tones, fully legible against the dark surface — no dark-on-dark failures. The scatter marker colors and colorbar gradient are pixel-identical to the light render (same green #009E73 → blue #4467A3 interpolation per point), confirming only chrome (background + text color) flipped between themes. Grid lines are subtle but visible in both renders.

Score: 84/100

Category	Score	Max
Visual Quality	28	30
Design Excellence	10	20
Spec Compliance	15	15
Data Quality	15	15
Code Quality	9	10
Library Mastery	7	10
Total	84	100

Visual Quality (28/30)

• VQ-01: Text Legibility (7/8) — all text readable in both themes at appropriate sizes; colorbar tick labels are slightly small relative to axis ticks but still fully legible.
• VQ-02: No Overlap (6/6) — no text collisions; scatter overlap is data-inherent, not a rendering defect.
• VQ-03: Element Visibility (5/6) — marker radius 7 with soft border is visible throughout, but a handful of points in dense clusters (e.g. ~205–210°C, 60–66 min) sit directly on top of each other with no fillOpacity/alpha to disambiguate.
• VQ-04: Color Accessibility (2/2) — imprint_seq (green→blue) is CVD-safe by construction; no red-green reliance.
• VQ-05: Layout & Canvas (4/4) — canvas gate passed, colorbar well-integrated in the right margin, no overflow or clipping.
• VQ-06: Axis Labels & Title (2/2) — both axes descriptive with units (°C, min); colorbar labeled "Reaction Yield (%)".
• VQ-07: Palette Compliance (2/2) — correctly uses imprint_seq (green #009E73 → blue #4467A3) for the continuous mapping instead of a categorical or foreign colormap; backgrounds correct in both themes; data colors identical light/dark.

Design Excellence (10/20)

• DE-01: Aesthetic Sophistication (5/8) - Competent engineering (hand-built colorbar via SVG renderer to work around the missing coloraxis module) but the overall visual result is a fairly standard scatter+colorbar composition without much additional polish.
• DE-02: Visual Refinement (3/6) - Horizontal-only grid, no legend clutter, thin marker borders for depth — clean, but nothing beyond baseline refinement.
• DE-03: Data Storytelling (2/6) - No visual hierarchy beyond the color mapping itself; no callout/annotation of the yield "sweet spot," no size variation, no guiding emphasis for the viewer.

Spec Compliance (15/15)

• SC-01: Plot Type (5/5) — correct color-mapped scatter.
• SC-02: Required Features (4/4) — colorbar with clear labels, moderate marker size (radius 7) for color visibility, 150 points within the 50–500 recommended range.
• SC-03: Data Mapping (3/3) — x=temperature, y=duration, color=yield; axes show full data range.
• SC-04: Title & Legend (3/3) — title matches the mandated format exactly; legend correctly omitted (single continuous series, redundant with colorbar).

Data Quality (15/15)

• DQ-01: Feature Coverage (6/6) — x, y, and color-mapped third variable all present with a working colorbar.
• DQ-02: Realistic Context (5/5) — chemistry reaction yield vs. temperature/duration is plausible and domain-neutral.
• DQ-03: Appropriate Scale (4/4) — temperature 150–250°C, duration 10–90 min, yield 5–98% are all sensible ranges for the domain.

Code Quality (9/10)

• CQ-01: KISS Structure (2/3) - Small helper functions (rand, hexToRgb, yieldColor) deviate from strict Imports→Data→Plot→Save, but they're a reasonable, well-commented consequence of the coloraxis module being unavailable in the core bundle — not gratuitous complexity.
• CQ-02: Reproducibility (2/2) — deterministic fixed-seed LCG.
• CQ-03: Clean Imports (2/2) — no imports needed; only the Highcharts global is used.
• CQ-04: Code Elegance (2/2) — no fake functionality; complexity is proportionate to the constraint being worked around, well-commented.
• CQ-05: Output & API (1/1) — correct mount-node contract, animation: false on chart and series, current API.

Library Mastery (7/10)

• LM-01: Idiomatic Usage (4/5) - Idiomatic scatter series and SVG renderer usage; correctly identifies and works around the missing coloraxis module rather than importing a forbidden add-on.
• LM-02: Distinctive Features (3/5) - The manual renderer-based colorbar (banded gradient + ticks + rotated label) is a genuinely distinctive, non-trivial use of Highcharts' low-level SVG API, showing real library depth — but it's a workaround for a missing feature rather than a showcase of a native Highcharts capability.

Score Caps Applied

• None

Strengths

• Clever, well-documented workaround for the missing coloraxis module — hand-built colorbar via chart.renderer bands, ticks, and rotated label matches the intended feature closely.
• Correct, consistent use of the imprint_seq sequential colormap for the continuous yield variable, with identical data colors between light and dark renders.
• Realistic, appropriately-scaled chemistry dataset (temperature/duration/yield) with a sensible non-linear yield surface.
• Clean theme-adaptive chrome: horizontal-only grid, transparent background, correct ink/inkSoft/grid token usage in both themes.

Weaknesses

• Design Excellence is generic: add a touch of visual hierarchy or storytelling — e.g., a subtle annotation/marker emphasis calling out the highest-yield cluster, or a light contour/reference band — so the chart guides the viewer rather than presenting an undifferentiated point cloud.
• A few markers in dense regions (e.g., ~205–210°C / 60–66 min) sit exactly on top of each other; a small fillOpacity (~0.85–0.9) on the scatter markers would slightly reduce occlusion in the densest clusters without hurting color-legibility of the colorbar mapping.
• Colorbar tick labels (14px) could be nudged to match visual weight with the axis tick labels for tighter consistency (minor).

Issues Found

1. DE-03 LOW: No visual hierarchy or data storytelling beyond the base color encoding
   • Fix: Add a subtle annotation or marker-size emphasis on the highest-yield point/region, or use a light background reference band, to give the viewer a clear focal point.
2. VQ-03 LOW: A handful of overlapping markers in dense clusters
   • Fix: Add marker.fillOpacity: ~0.85 (or similar) to slightly soften occlusion between overlapping points while preserving colorbar legibility.

AI Feedback for Next Attempt

Overall implementation is technically solid and spec-compliant — keep the manual colorbar workaround and the imprint_seq mapping. To raise Design Excellence: add one deliberate storytelling touch (e.g., annotate or emphasize the highest-yield cluster) and consider slight marker fillOpacity to soften occlusion in the densest regions. These are refinements, not corrections — the core implementation is sound.

Verdict: REJECTED

[github-actions]

🔧 Repair Attempt 1/4

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

Light render (plot-light.png): Warm off-white (#FAF8F1) background. Title "scatter-color-mapped · javascript · highcharts · anyplot.ai" in dark bold text at top, clearly legible. X-axis "Reaction Temperature (°C)" and Y-axis "Reaction Duration (min)" titles/tick labels in muted ink-soft tone, fully readable; horizontal-only grid lines subtle but visible. 150 circular markers on a green (#009E73) → blue (#4467A3) imprint_seq gradient encoding Reaction Yield, with a hand-built vertical colorbar on the right (41–98% range, 5 ticks, rotated "Reaction Yield (%)" label). New this attempt: a dashed ring + "Peak yield 98%" label calls out the single highest-yield point (~204°C, 62 min), giving the chart a clear focal point, and markers now use fillOpacity: 0.88 which softens occlusion in dense clusters (e.g. ~208–210°C, 65–66 min). All text is clearly legible against the light background; no light-on-light issues.

Dark render (plot-dark.png): Warm near-black (#1A1A17) background. Same layout — title, axis titles/ticks, colorbar ticks/label, and the new peak-annotation label all rendered in light ink/ink-soft tones, fully legible against the dark surface; no dark-on-dark failures anywhere. Marker fill colors and the colorbar gradient are pixel-identical to the light render (same #009E73 → #4467A3 interpolation per point), confirming only chrome flipped between themes. Grid lines subtle but visible.

Both renders pass legibility.

Score: 87/100

Category	Score	Max
Visual Quality	29	30
Design Excellence	12	20
Spec Compliance	15	15
Data Quality	15	15
Code Quality	9	10
Library Mastery	7	10
Total	87	100

Visual Quality (29/30)

• VQ-01: Text Legibility (7/8) — all text readable in both themes at explicit sizes; colorbar tick labels slightly lighter in visual weight than axis ticks but fully legible.
• VQ-02: No Overlap (6/6) — no text collisions.
• VQ-03: Element Visibility (6/6) — marker.fillOpacity: 0.88 added this attempt softens occlusion in dense clusters, directly resolving the attempt-1 note.
• VQ-04: Color Accessibility (2/2) — imprint_seq (green→blue) is CVD-safe by construction.
• VQ-05: Layout & Canvas (4/4) — canvas gate passed; colorbar well-integrated in the right margin, no overflow/clipping.
• VQ-06: Axis Labels & Title (2/2) — both axes descriptive with units.
• VQ-07: Palette Compliance (2/2) — correct imprint_seq mapping, theme-correct chrome, identical data colors light/dark.

Design Excellence (12/20)

• DE-01: Aesthetic Sophistication (5/8) - Competent engineering (hand-built colorbar, peak annotation) but the overall composition is still a fairly standard scatter+colorbar without much additional polish.
• DE-02: Visual Refinement (3/6) - Horizontal-only grid, thin marker borders — clean but unchanged from attempt 1, still baseline refinement.
• DE-03: Data Storytelling (4/6) - New dashed-ring + "Peak yield 98%" annotation creates a clear focal point and visual hierarchy, directly addressing the attempt-1 weakness.

Spec Compliance (15/15)

• SC-01: Plot Type (5/5) — correct color-mapped scatter.
• SC-02: Required Features (4/4) — colorbar with clear labels, moderate marker size, 150 points within the 50–500 recommended range.
• SC-03: Data Mapping (3/3) — x=temperature, y=duration, color=yield; axes show full data range.
• SC-04: Title & Legend (3/3) — title matches the mandated format exactly; legend correctly omitted.

Data Quality (15/15)

• DQ-01: Feature Coverage (6/6) — x, y, and color-mapped third variable all present with a working colorbar.
• DQ-02: Realistic Context (5/5) — chemistry reaction yield vs. temperature/duration is plausible and domain-neutral.
• DQ-03: Appropriate Scale (4/4) — temperature 150–250°C, duration 10–90 min, yield 5–98% are all sensible.

Code Quality (9/10)

• CQ-01: KISS Structure (2/3) - Small helper functions (rand, hexToRgb, yieldColor) are a reasonable, well-commented consequence of the missing coloraxis module.
• CQ-02: Reproducibility (2/2) — deterministic fixed-seed LCG.
• CQ-03: Clean Imports (2/2) — only the Highcharts global is used.
• CQ-04: Code Elegance (2/2) — no fake functionality; complexity proportionate to the constraint.
• CQ-05: Output & API (1/1) — correct mount-node contract, animation: false throughout.

Library Mastery (7/10)

• LM-01: Idiomatic Usage (4/5) - Idiomatic scatter series and SVG renderer usage; correctly avoids a forbidden add-on module.
• LM-02: Distinctive Features (3/5) - Manual renderer-based colorbar + annotation overlay is a genuinely distinctive, non-trivial use of Highcharts' low-level SVG API, though it's a workaround rather than a showcase of a native capability.

Score Caps Applied

• None

Strengths

• Directly addresses both attempt-1 weaknesses: marker.fillOpacity: 0.88 softens occlusion in dense clusters, and the dashed-ring "Peak yield 98%" annotation gives the chart a clear focal point.
• Clever, well-documented workaround for the missing coloraxis module — hand-built colorbar via chart.renderer bands, ticks, and rotated label.
• Correct, consistent use of imprint_seq for the continuous yield variable, with identical data colors between light and dark renders.
• Realistic, appropriately-scaled chemistry dataset with a sensible non-linear yield surface and clean theme-adaptive chrome in both renders.

Weaknesses

• Design Excellence is still moderate: beyond the new annotation, the composition remains a fairly standard scatter+colorbar with baseline visual refinement (horizontal-only grid, thin marker borders) — no additional polish like a reference band or refined typographic hierarchy.
• Colorbar tick labels (14px) are still slightly lighter in visual weight than the axis tick labels — minor consistency nit, not a legibility problem.

Issues Found

1. DE-01 LOW: Composition still reads as a well-executed default rather than a distinctly polished design
   • Fix (optional, future attempts): consider a subtle refinement pass (e.g. tighter typographic hierarchy between title/axis/colorbar text sizes) if pursuing a 90+ score.

AI Feedback for Next Attempt

This attempt resolved both prior weaknesses (marker occlusion via fillOpacity, and lack of storytelling via the peak-yield annotation). Implementation is spec-compliant, technically sound, and now has a clear visual focal point — approved at the Review 2 (≥80) threshold.

Verdict: APPROVED