Progress Report

Community Bonding Period
- Set up local development environment for animint2 and animint/gallery.
- Explored open issues and got familiar with existing codebase and test infrastructure.

PR #29, 27: Started Visualization Porting
- Added demo video and confirmed backward compatibility.
- Kickstarted gallery migration to animint2.

PR #29: Gallery Port Phase I.
- Ported 3 visualizations: American Temperature Maps, World Bank paper, ChIP-seq data.
- Added demo videos and fixed minor rendering bugs.

PR #30: Gallery Port Phase II.
- Ported 6 more visualizations including iris scatterplot and economic datasets.
- Resolved geom_tile transition issue.

PR #197: D3 Tooltip System.
- Replaced old title based tooltips with faster D3-powered solution.
- Supported aes(tooltip) in all geoms
- Enhanced interactivity and responsiveness of tooltips.

PR #203: Initial version of geom_label_aligned (formerly geom_aligned_boxes).
- Enables non-overlapping aligned labels using quadratic programming.
- Useful for clean annotation of dense timeseries data.
- Currently working on refining this geom.

PR #208: Combined Code Coverage with Codecov.
- Integrated both R and JS test coverage reports.
- Coverage deployed and visualized via Codecov.
- Enhanced CI/CD feedback loop for PRs.

geom_label_aligned Development
- Continued refinement and testing of geom_label_aligned, ensuring non-overlapping labels using quadratic programming.
- Debugged transition animations and alignment issues for <rect> and <text> elements.
- Collaborated with mentors to finalize the feature design and visual clarity.

geom_label_aligned Merge & Documentation
- Successfully merged geom_label_aligned into animint2, introducing a major new feature.
- Added extensive test coverage to verify label placement in various scenarios.
- Documented usage examples for contributors and users.

Coverage Integration – PR #212
- Merged compiler and renderer tests to ensure complete R and JS coverage.
- Created two separate workflow jobs: JS_COVERAGE and R_COVERAGE.
- Increased R coverage by ~4%, ensuring all tests are correctly included.
- Conducted checks on R Selenium PR to confirm stable browser-based testing across environments.

Wiki Documentation
- Authored two comprehensive wiki pages explaining coverage collection and Codecov usage:

• Coverage Collection in GitHub Actions
• Understanding and Using Codecov

- Provided guidance for future contributors on running tests and interpreting coverage reports.

geom_abline Clipping Issue – PR #214
- Investigated and resolved critical geom_abline bug where lines exceeded plot boundaries when update_axes() was applied.
- Shifted clipping logic from R-side (compiler) to JS-side (renderer) to handle dynamic axis updates.
- Added dedicated renderer tests to confirm correct clipping.
- Began analyzing slope discrepancies caused by renderer-side computation.

geom_abline & CRAN Test Fixes
- Resolved slope discrepancies for static and dynamic plots.
- Restored compiler-side computation for static plots to make CRAN examples pass.
- Corrected the changepoint detection example; ablines now remain within plot boundaries.
- Added the corrected example to the animint2 gallery: Figure Loss – Small Data.

Finalizing geom_abline & Gallery Integration
- Verified all geom_abline test cases and ensured dynamic clipping works across update_axes() scenarios.
- Integrated the fixed changepoint detection plot into the gallery.
- Polished code by removing redundancies and improving readability.
- Added the geom_abline example to the gallery as the 22nd visualization: Gallery Preview.

Wrap-Up & Reflections
- Conducted final checks on all merged and open PRs to ensure stability and completeness.
- Reviewed gallery examples, tests, and coverage reports for consistency.
- Prepared notes and documentation for the end-of-GSoC report.
- Looking forward to continued contributions to animint2 and building on the features introduced during GSoC.