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[line-basic] highcharts implementation #485
Description
Activity
- added a parent issue
on Dec 7, 2025 Attempt 1/3
Technical Approach
- Imports:
import tempfile, import time, import urllib.request - Plot function:
LineSeries - Config: style=margin:0;, color=#306998
Status
- PR: feat(highcharts): implement line-basic #504
- File:
plots/highcharts/line/line-basic/default.py - Workflow: 20010151736
- Imports:
🧪 Test Results (PR #504)
Python:
📊 Plot Preview (Python 3.13)
highcharts (default) - UPDATE
Before After View version history (17 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 (X: "Time", Y: "Value") - meaningful labels present
- VQ-002: Visual Clarity - Grid is subtle with dotted style and low opacity
- VQ-003: Elements Clear - Line is clearly visible with good color contrast (#4A90D9 blue)
- VQ-004: No Overlap - Labels and ticks are readable, no overlapping elements
- VQ-005: Legend Present - N/A (single series, legend correctly disabled)
- VQ-006: Colorblind Safe - Uses blue color, no red-green combinations
- VQ-007: Image Size - Uses 1600x900 default instead of 4800x2700 target (minor)
- VQ-008: Title - "Basic Line Plot" centered and clear
Code Quality
- CQ-001: Type hints present - All parameters have type hints including Optional types
- CQ-002: Docstring - Complete Google-style with Args, Returns, Raises, Example
- CQ-003: Input Validation - Checks for empty data and missing columns
- CQ-004: Clear Error Messages - Includes available columns in KeyError message
- CQ-005: No Magic Numbers - All values parameterized with sensible defaults
Correctness
- CR-001: Data Accurate - Correctly uses x/y columns from DataFrame
- CR-002: Spec Compliance - Implements line plot for trend visualization
- CR-003: Edge Cases - Handles empty data and missing columns
Issues Found
- VQ-007 PARTIAL: Default dimensions are 1600x900 instead of the target 4800x2700 specified in the style guide. However, dimensions are configurable via parameters.
Positive Notes
- Excellent code structure with proper type hints and comprehensive docstring
- Handles both categorical and numeric x-axis data intelligently
- Proper input validation with helpful error messages
- Correct use of
container="container"as per highcharts library guidelines - Clean export via Selenium with proper CDN workaround for headless Chrome
- Alpha/transparency support with hex-to-rgba conversion
AI Feedback for Next Attempt
Consider updating default width/height to 4800x2700 to match the target image size in the style guide.
Verdict: APPROVED
The implementation is well-structured, follows best practices, and produces a clear, readable line chart that matches the spec requirements. The minor dimension deviation is acceptable as it's configurable.
- added a commit that references this issue
on Dec 7, 2025 Merged
highcharts implementation for
line-basichas been merged!
🚀 Auto-merged by pyplots CI
[line-basic] highcharts Implementation
Parent Issue: #205
Spec:
specs/line-basic.mdLibrary: highcharts
Feature Branch:
plot/line-basicAttempt History
Attempts will be documented below as comments.