[line-basic] highcharts implementation

[line-basic] highcharts Implementation

Parent Issue: #205
Spec: specs/line-basic.md
Library: highcharts
Feature Branch: plot/line-basic

Attempt History

Attempts will be documented below as comments.

🧪 Test Results (PR #317)

Python:

📊 Plot Preview (Python 3.13)

highcharts (default) - UPDATE

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🧪 Test Results (PR #317)

Python:

📊 Plot Preview (Python 3.13)

highcharts (default) - UPDATE

Before	After

View version history (9 versions)

🤖 Generated by gen-preview workflow

AI Review - Attempt 1/3

Quality Evaluation

Evaluator	Score	Verdict
Claude	88/100	approve

Criteria Checklist

Visual Quality:

VQ-001: Axes labeled correctly - Y-axis shows "Value", X-axis has numeric tick labels
VQ-002: Visual clarity - Grid is subtle with dotted lines at 0.1-0.3 alpha
VQ-003: Elements clear - Line is clearly visible with appropriate thickness and color
VQ-004: No overlap - All labels, ticks, and elements are readable without overlap
VQ-005: Legend present - N/A for single series (correctly disabled)
VQ-006: Colorblind safe - Uses blue (#4A90D9), no red-green combinations
VQ-007: Image size - Uses 1600x900 instead of target 4800x2700
VQ-008: Title - "Basic Line Plot" is centered and clear

Code Quality:

CQ-001: Type hints present - All function parameters have proper type hints
CQ-002: Docstring complete - Google-style with Args, Returns, Raises, Example
CQ-003: Input validation - Validates empty data and missing columns
CQ-004: Clear error messages - Shows available columns on KeyError
CQ-005: No magic numbers - All values are parameterized with defaults

Correctness:

CR-001: Data accurate - Correctly plots x vs y data
CR-002: Spec compliance - Implements line chart connecting data points as specified
CR-003: Edge cases - Handles empty data with ValueError

Issues Found

VQ-007 PARTIAL (-2): Image size is 1600x900 instead of the recommended 4800x2700. While the chart renders correctly, it does not meet the target dimensions from the style guide.
Minor: Import statement uses from highcharts_core.options.series.area import LineSeries - LineSeries works but is typically imported from highcharts_core.options.series.line. This is functional but unconventional.

Scoring Breakdown

Base: 50
+10 VQ-001 (axes labeled)
+5  VQ-002 (visual clarity)
+8  VQ-003 (elements clear)
+9  VQ-004 (no overlap)
+0  VQ-005 (N/A - single series)
+6  VQ-006 (colorblind safe)
-2  VQ-007 (image size - partial)
+3  VQ-008 (title)
+7  CQ-001 (type hints)
+8  CQ-002 (docstring)
+10 CQ-003 (input validation)
+6  CQ-004 (clear errors)
+4  CQ-005 (no magic numbers)
+10 CR-001 (data accurate)
+10 CR-002 (spec compliance)
+5  CR-003 (edge cases)
-------------------------------------------------
Total: 88/100

AI Feedback for Next Attempt

The implementation is solid. For future improvements:

Consider using 4800x2700 dimensions for consistency with the style guide

Import LineSeries from highcharts_core.options.series.line for clarity

Verdict: APPROVED

The implementation correctly creates a basic line chart as specified. Code quality is excellent with proper validation, type hints, and documentation. The visual output is clean and readable. The minor image size deviation does not significantly impact the quality score.

feat(highcharts): implement line-basic (#317)

Merged

highcharts implementation for line-basic has been merged!

PR: feat(highcharts): implement line-basic #317

🚀 Auto-merged by pyplots CI

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[line-basic] highcharts implementation #260