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feat(makie): implement scatter-connected-temporal#8541

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implementation/scatter-connected-temporal/makie
Jun 9, 2026
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feat(makie): implement scatter-connected-temporal#8541
MarkusNeusinger merged 6 commits into
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implementation/scatter-connected-temporal/makie

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Implementation: scatter-connected-temporal - julia/makie

Implements the julia/makie version of scatter-connected-temporal.

File: plots/scatter-connected-temporal/implementations/julia/makie.jl

Parent Issue: #4675


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@claude

claude Bot commented Jun 9, 2026

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AI Review - Attempt 1/3

Image Description

Light render (plot-light.png): Warm off-white (#FAF8F1) background. Title "CO₂ vs Temperature · scatter-connected-temporal · julia · makie · anyplot.ai" in dark ink, occupying ~70% of the plot width — proportional and not overflowing. X-axis labeled "Atmospheric CO₂ (ppm)", Y-axis labeled "Temperature Anomaly (°C)", both in dark ink. Tick labels in a slightly muted dark tone. Connected scatter shows 43 points (1980–2022) with a green→blue temporal gradient (imprint_seq: #009E73 → #4467A3). Year annotations at 1980, 1990, 2000, 2010, and 2022 in small dark text, offset above the points. Colorbar on the right side labels the Year range 1980–2022. Top and right spines removed; subtle grid lines at ~12% opacity. All text is clearly readable against the light background — no legibility failures.

Dark render (plot-dark.png): Near-black (#1A1A17) background. Same layout and data, with all chrome elements flipped: title, axis labels, tick labels, and year annotations are rendered in light/warm-white text (#F0EFE8 / #B8B7B0). Data colors are identical to the light render — the green-to-blue temporal gradient is unchanged, confirming only chrome adapts. Colorbar tick labels and "Year" label are in muted light tone. No dark-on-dark failure detected — all text elements are legible against the dark surface. Grid lines remain subtle. Both renders pass legibility checks.

Score: 85/100

Category Score Max
Visual Quality 26 30
Design Excellence 13 20
Spec Compliance 15 15
Data Quality 14 15
Code Quality 10 10
Library Mastery 7 10
Total 85 100

Visual Quality (26/30)

  • VQ-01: Text Legibility (7/8) — Font sizes explicitly set for all elements; title fontsize auto-scales via formula (18pt for 76-char title). Year annotations at fontsize=11 are readable but borderline small at full resolution.
  • VQ-02: No Overlap (5/6) — Year labels use offset=(0, 8) and avoid direct overlap with markers. Minor crowding around the "1990" and "2010" labels relative to adjacent line segments, but no actual occlusion.
  • VQ-03: Element Visibility (5/6) — markersize=11 with strokewidth=1/strokecolor=PAGE_BG gives clean point definition. For 43 sparse points the marker size is acceptable, though slightly small — could be bumped to 13-14 for better prominence.
  • VQ-04: Color Accessibility (2/2) — ANYPLOT_SEQ (green→blue) is CVD-safe; temporal direction readable without relying on hue alone (colorbar + year labels provide redundant encoding).
  • VQ-05: Layout & Canvas (3/4) — Canvas 3200×1800 confirmed. Layout clean with colorbar in fig[1,2] and colgap!(10). Colorbar and its "Year" label are close to the right canvas edge but not clipped.
  • VQ-06: Axis Labels & Title (2/2) — Descriptive labels with units on both axes; title follows the spec format with descriptive prefix.
  • VQ-07: Palette Compliance (2/2) — ANYPLOT_SEQ (imprint_seq: #009E73→#4467A3) is the correct sequential colormap for continuous temporal data. Backgrounds #FAF8F1 (light) and #1A1A17 (dark) are correct. Data colors identical across themes.

Design Excellence (13/20)

  • DE-01: Aesthetic Sophistication (5/8) — Temporal gradient narrative is an elegant design choice. Clean layout with colorbar. Raised above default for intentional hierarchy and sophisticated use of imprint_seq for temporal encoding.
  • DE-02: Visual Refinement (4/6) — Top/right spines removed; grid at 12% opacity is subtle and unobtrusive; white stroke on scatter markers adds definition. colgap! for fine layout control. Well-executed refinements throughout.
  • DE-03: Data Storytelling (4/6) — The green→blue temporal gradient compellingly shows co-evolution of CO₂ and temperature. Key year annotations guide the reader through the narrative arc. The overall upward trend is the focal point. Good storytelling.

Spec Compliance (15/15)

  • SC-01: Plot Type (5/5) — Connected scatter with temporal ordering; points at each data position; temporal path visible.
  • SC-02: Required Features (4/4) — Points connected chronologically ✓; key time points annotated (1980, 1990, 2000, 2010, 2022) ✓; temporal color gradient ✓; colorbar shows direction of time ✓.
  • SC-03: Data Mapping (3/3) — X=CO₂ (ppm), Y=temperature anomaly (°C), time encoded as color gradient. All 43 points visible across the full axis range.
  • SC-04: Title & Legend (3/3) — Title: "CO₂ vs Temperature · scatter-connected-temporal · julia · makie · anyplot.ai" ✓; colorbar labeled "Year" with correct tick range.

Data Quality (14/15)

  • DQ-01: Feature Coverage (5/6) — Connected scatter path ✓, temporal gradient ✓, year annotations ✓, colorbar ✓. Covers all major spec features. Slightly held back because start arrow/direction indicator is absent (the colorbar compensates but a small arrow at the start point would fully cover the spec note).
  • DQ-02: Realistic Context (5/5) — CO₂ vs global temperature anomaly (1980–2022) is scientifically plausible, neutral, and representative of the connected temporal scatter use case. Values (338–418 ppm CO₂; 0.1–0.8°C anomaly) are realistic.
  • DQ-03: Appropriate Scale (4/4) — 43 data points (annual, 1980–2022) is appropriate. CO₂ and temperature ranges are realistic for the domain.

Code Quality (10/10)

  • CQ-01: KISS Structure (3/3) — Flat script, no functions or classes.
  • CQ-02: Reproducibility (2/2) — Random.seed!(42).
  • CQ-03: Clean Imports (2/2) — CairoMakie, Colors, Random — all used.
  • CQ-04: Code Elegance (2/2) — Per-segment line loop is the idiomatic Makie approach for gradient lines. No fake UI.
  • CQ-05: Output & API (1/1) — save("plot-$(THEME).png", fig; px_per_unit = 2). Modern size= API used.

Library Mastery (7/10)

  • LM-01: Idiomatic Usage (4/5) — Correct use of Makie layout system (fig[1,1], fig[1,2]), colgap!, cgrad, colorant"#...", RGBAf for grid colors, modern size= parameter. Good command of Makie's idioms.
  • LM-02: Distinctive Features (3/5) — Per-segment line coloring loop is a distinctly Makie way to produce gradient lines (no linesegments! with color arrays, but the loop approach is functionally equivalent and clear). Colorbar integration with Figure layout is Makie-native. RGBAf for transparent grid colors is Makie-specific.

Score Caps Applied

  • None

Strengths

  • Elegant use of ANYPLOT_SEQ (imprint_seq) as a temporal gradient — perfectly suits the connected-scatter-temporal spec concept
  • Full theme adaptation: all chrome elements (title, axis labels, ticks, spines, grid, colorbar) correctly flip between light and dark
  • Key year annotations (1980, 1990, 2000, 2010, 2022) provide meaningful narrative anchors along the temporal path
  • Title fontsize auto-scales based on title character count, preventing overflow
  • Perfect spec compliance — all required features implemented

Weaknesses

  • Year annotation fontsize=11 is borderline small at the 3200×1800 render; could be bumped to 12-13 for better mobile readability
  • Scatter marker size=11 is slightly small for 43-point sparse data; 13-14 would give better prominence per the data-density heuristic
  • No directional arrow at the 1980 start point — the colorbar provides temporal direction but a small arrowhead or start indicator would be a stronger visual cue (the spec specifically mentions "an arrow or color gradient along the path can indicate the direction of time")
  • Colorbar and its Year label are very close to the right canvas edge; a slightly wider colgap or right margin padding would improve breathing room

Issues Found

  1. VQ-01 MINOR: Year annotation labels at fontsize=11 are small relative to the 3200×1800 canvas — increase to 12-13pt for better readability when scaled to mobile.
  2. VQ-03 MINOR: Scatter markersize=11 is slightly small for 43 sparse points — increase to 13-14 for more visual prominence.
  3. DE-03 MINOR: The spec requests an arrow or indicator showing temporal direction; the colorbar serves this purpose but a small arrowhead at the 1980 starting point would strengthen the narrative. Optional but recommended.

AI Feedback for Next Attempt

Strong implementation — temporal gradient, key year annotations, and full theme adaptation are all correct. Minor improvements: (1) bump year annotation fontsize to 12–13pt, (2) increase scatter markersize to 13–14, (3) optionally add a small arrowhead at the 1980 start point to make temporal direction explicit per spec guidance. No structural changes needed.

Verdict: APPROVED

@github-actions github-actions Bot added quality:85 Quality score 85/100 ai-rejected Quality not OK, triggers update labels Jun 9, 2026
@github-actions github-actions Bot added ai-attempt-1 First repair attempt and removed ai-rejected Quality not OK, triggers update labels Jun 9, 2026
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github-actions Bot commented Jun 9, 2026

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🔧 Repair Attempt 1/4

Applied fixes based on AI review feedback.

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


🤖 impl-repair

@claude

claude Bot commented Jun 9, 2026

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AI Review - Attempt 2/3

Image Description

Light render (plot-light.png): The plot is rendered on a warm off-white #FAF8F1 background. It shows a connected scatter plot of Atmospheric CO₂ (ppm) on the x-axis versus Temperature Anomaly (°C) on the y-axis, covering 1980–2022. The temporal path uses the Imprint sequential colormap (brand green #009E73 for early years → blue #4467A3 for recent years), with each line segment colored by its midpoint time position and scatter points colored by their temporal position. A directional arrow at 1980 guides the eye to the starting point. Five key years (1980, 1990, 2000, 2010, 2022) are annotated with offset text labels. A compact colorbar on the right side shows the year range. Top and right spines are removed; a subtle grid is visible. All text — title, axis labels, tick labels, and year annotations — is clearly readable in dark ink against the light background. The title CO₂ vs Temperature · scatter-connected-temporal · julia · makie · anyplot.ai spans approximately 70% of the plot width at a slightly scaled-down size (19pt). Legibility verdict: PASS.

Dark render (plot-dark.png): The same plot is rendered on a warm near-black #1A1A17 background. All data colors (green-to-blue temporal gradient) are identical to the light render — only the chrome flips. Title, axis labels, tick labels, and year annotations are rendered in light warm-white tones (#F0EFE8 / #B8B7B0), clearly readable against the dark surface. Grid lines are subtle and light-tinted. No dark-on-dark failures observed — all text elements are properly illuminated. Brand green #009E73 is clearly visible at the starting 1980 end of the path. Legibility verdict: PASS.

Both paragraphs confirmed. Both renders pass the theme-readability check.

Score: 91/100

Category Score Max
Visual Quality 29 30
Design Excellence 13 20
Spec Compliance 15 15
Data Quality 15 15
Code Quality 10 10
Library Mastery 9 10
Total 91 100

Visual Quality (29/30)

  • VQ-01: Text Legibility (7/8) — All text readable in both themes; title scaled to 19pt (formula-correct for 72-char title); year annotations at 13pt are legible but on the small side for mobile scaling
  • VQ-02: No Overlap (6/6) — Year annotations offset cleanly above points; no text-data collisions
  • VQ-03: Element Visibility (6/6) — 43 points with markersize=14 are prominent and well-sized for the data density; strokewidth=1 adds definition
  • VQ-04: Color Accessibility (2/2) — Imprint seq gradient is CVD-safe; no red-green sole distinction
  • VQ-05: Layout & Canvas (4/4) — Canvas gate passed (3200×1800); colorbar in layout grid provides excellent balance
  • VQ-06: Axis Labels & Title (2/2) — "Atmospheric CO₂ (ppm)" and "Temperature Anomaly (°C)" are descriptive with units
  • VQ-07: Palette Compliance (2/2) — Imprint seq cgrad(#009E73#4467A3) for continuous temporal data; correct backgrounds; data colors identical across themes

Design Excellence (13/20)

  • DE-01: Aesthetic Sophistication (5/8) — Intentional use of sequential colormap for temporal encoding; directional arrow at path start; colorbar with year axis are deliberate design choices above the generic default
  • DE-02: Visual Refinement (4/6) — Top/right spines removed; 12% opacity grid; strokewidth stroke on markers for definition; compact 18px colorbar
  • DE-03: Data Storytelling (4/6) — Temporal gradient + arrow + key-year milestones create a clear narrative arc; climate co-evolution trend is immediately readable

Spec Compliance (15/15)

  • SC-01: Plot Type (5/5) — Correct connected scatter temporal plot
  • SC-02: Required Features (4/4) — Points connected in temporal order ✓, key time-point annotations ✓, directional arrow ✓, color gradient for temporal progression ✓
  • SC-03: Data Mapping (3/3) — CO₂ on x, temperature anomaly on y, years 1980–2022 as temporal ordering variable
  • SC-04: Title & Legend (3/3) — Title follows {Descriptive} · {spec-id} · julia · makie · anyplot.ai format; colorbar with "Year" label serves as temporal legend

Data Quality (15/15)

  • DQ-01: Feature Coverage (6/6) — All spec features shown: scatter + line path + gradient + arrow + annotations + colorbar
  • DQ-02: Realistic Context (5/5) — CO₂ vs temperature anomaly is a real-world, politically neutral, scientifically valid topic
  • DQ-03: Appropriate Scale (4/4) — CO₂ starting at 338 ppm rising ~1.9 ppm/year and temperature anomaly starting at 0.10°C rising ~0.018°C/year are accurate to real-world observations

Code Quality (10/10)

  • CQ-01: KISS Structure (3/3) — Linear script, no functions or classes
  • CQ-02: Reproducibility (2/2) — Random.seed!(42)
  • CQ-03: Clean Imports (2/2) — Only CairoMakie, Colors, Random — all used
  • CQ-04: Code Elegance (2/2) — Clean idiom; let block for arrow calculation is good Julia style; no fake UI
  • CQ-05: Output & API (1/1) — save("plot-$(THEME).png", fig; px_per_unit = 2); modern Makie size= API (v0.22.10)

Library Mastery (9/10)

  • LM-01: Idiomatic Usage (5/5) — Axis theme tokens threaded correctly; RGBAf for grid colors; cgrad for sequential colormap; colgap! for layout; Colorbar in figure grid
  • LM-02: Distinctive Features (4/5) — Per-segment lines! loop for smooth gradient coloring; arrows! primitive for directional marker; Colorbar in layout grid; cgrad two-stop gradient

Score Caps Applied

  • None

Strengths

  • Temporal gradient (Imprint seq: green → blue) elegantly encodes time direction as the primary visual encoding, matching the spec intent perfectly
  • Directional arrow at the 1980 path origin guides the viewer through the temporal journey without cluttering the chart
  • Full theme-adaptive chrome: all color tokens (INK, INK_SOFT, PAGE_BG) correctly threaded to every axis element in both light and dark renders
  • Realistic CO₂ / temperature data with scientifically accurate baselines and growth rates
  • Modern Makie API (size= parameter) and idiomatic Julia patterns (let block, cgrad, RGBAf)

Weaknesses

  • Year annotation fontsize (13pt, effective 26 source px) is slightly small; bumping to 14–15pt would improve mobile readability without risk of overlap
  • Title titlesize (19pt) is formula-correct but just below the 20pt default; with the 72-char title and current layout, increasing to 20pt would not overflow

Issues Found

  1. VQ-01 MINOR: Year annotation labels at fontsize=13pt are borderline for mobile readability (~400px scaled width)
    • Fix: Increase key-year annotation fontsize from 13 to 14 or 15

AI Feedback for Next Attempt

Excellent implementation overall. Two small refinements: (1) increase the key-year annotation fontsize from 13 to 14–15pt for better mobile readability; (2) nudge titlesize from 19 to 20 — the 72-char title fits the landscape canvas at 20pt without overflow. No structural changes needed.

Verdict: APPROVED

@github-actions github-actions Bot added quality:91 Quality score 91/100 ai-approved Quality OK, ready for merge and removed quality:85 Quality score 85/100 labels Jun 9, 2026
@MarkusNeusinger MarkusNeusinger merged commit fedfd36 into main Jun 9, 2026
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@MarkusNeusinger MarkusNeusinger deleted the implementation/scatter-connected-temporal/makie branch June 9, 2026 23:49
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