EXCEEDS logo
Exceeds
Manuel Fragata Mendes

PROFILE

Manuel Fragata Mendes

Harrison Kramer developed advanced optical analysis and visualization tools for the HarrisonKramer/optiland repository, focusing on robust backend architecture and user-facing features. Over eight months, he engineered modular visualization subsystems, GUI enhancements, and analytical modules such as radiant intensity and angle of incidence calculations. His work emphasized maintainability through code refactoring, improved test coverage, and documentation governance. Using Python, PySide6, and PyTorch, Harrison addressed edge-case bugs, optimized numerical methods, and integrated differentiable programming for ray tracing and surface geometry. The depth of his contributions is reflected in scalable design patterns, reliable scientific computing workflows, and a foundation for future extensibility.

Overall Statistics

Feature vs Bugs

59%Features

Repository Contributions

94Total
Bugs
21
Commits
94
Features
30
Lines of code
99,469
Activity Months8

Work History

February 2026

1 Commits • 1 Features

Feb 1, 2026

February 2026 (2026-02) focused on Forbes surface enhancements in HarrisonKramer/optiland. Implemented autograd optimizations, improved cache handling, and introduced clearer naming conventions to reduce maintenance friction. Also fixed Forbes surface issues (#460), improving stability and correctness of the surface computation pipeline. Result: faster, more reliable Forbes surface and a foundation for scalable future improvements.

September 2025

2 Commits • 1 Features

Sep 1, 2025

September 2025 monthly summary for HarrisonKramer/optiland: Delivered a new Angle of Incidence (AOI) calculation as a RayOperand, expanding analytic capabilities for optical system design. Fixed NaN gradients in backward() when rays pass through Forbes surface vertices, improving gradient stability and robustness, with tests validating behavior on ForbesQbfsGeometry and ForbesQ2dGeometry. Key engineering work included robust vertex-ray handling and tests driven by the CookeTriplet design. Overall impact: enhanced accuracy of incidence-based analyses, reduced debugging time, and stronger test coverage, enabling more reliable optimization and exploration of optical designs.

August 2025

13 Commits • 5 Features

Aug 1, 2025

August 2025 highlights for HarrisonKramer/optiland: delivered a comprehensive GUI overhaul and a suite of analytical capabilities that boost usability and modeling fidelity, supported by targeted maintainability improvements and robust test coverage. Key customer/value outcomes include faster setup of optical analyses, more reliable simulations, and clearer results visualization for design decisions.

July 2025

15 Commits • 3 Features

Jul 1, 2025

July 2025 summary: Delivered a major visualization subsystem refactor with an API that returns plot objects for testability, fixed critical comment persistence across Undo/Redo and serialization, hardened ray tracing for negative radii and toroidal geometries, and expanded documentation and tests. These changes improve maintainability, reliability, and business value by enabling safer code changes, faster QA feedback, and richer user guidance.

June 2025

2 Commits • 2 Features

Jun 1, 2025

June 2025: Delivered a Surface Sag Viewer and refactored the visualization architecture to enable modular viewers and resolve circular dependencies, improving scalability and maintainability. Exposed the viewer via lens.plot_surface_sag(surface_index). Implemented documentation governance by adding a 'Currently Under Development' table in the README to track ongoing features, contributors, status, and related issues, reducing duplicated effort. No external customer-facing bugs were reported; the focus was architectural improvements and documentation hygiene. Overall impact: faster iteration, clearer roadmap for contributors, and a stronger foundation for future visualization enhancements. Technologies/skills demonstrated: Python-based modular design, object-oriented refactoring, visualization subsystem architecture, and documentation practices.

May 2025

29 Commits • 14 Features

May 1, 2025

May 2025 performance for HarrisonKramer/optiland focused on expanding test coverage, enhancing documentation and examples, improving coordinate handling, and fixing critical edge-case bugs, driving reliability, onboarding ease, and maintainability.

April 2025

30 Commits • 4 Features

Apr 1, 2025

April 2025 monthly summary for HarrisonKramer/optiland. This period focused on stabilizing backend-geometry interactions, expanding geometry capabilities, and improving test reliability to accelerate safe iterations and deliver measurable business value in ray tracing accuracy and maintainability.

February 2025

2 Commits

Feb 1, 2025

February 2025 monthly summary for HarrisonKramer/optiland: Focused on robustness and visualization accuracy. Delivered two critical bug fixes improving analysis reliability and downstream calculations: (1) Spot Diagram Visualization Correction for Tilted Surfaces — fixed transformation from global to local coordinates and updated axis labels to U/V to improve accuracy and interpretability; (2) Robustness for Missing Extinction Coefficient Data — defaulted missing extinction coefficient to 0 and emitted a single warning to prevent ValueError and stabilize material property retrieval. Overall impact: reduced runtime errors, more accurate analyses for tilted geometries, and safer data pipelines. Technologies/skills demonstrated: Python data processing, coordinate transforms, robust error handling, logging/warnings, code robustness.

Activity

Loading activity data...

Quality Metrics

Correctness93.6%
Maintainability90.8%
Architecture88.4%
Performance85.6%
AI Usage23.4%

Skills & Technologies

Programming Languages

C++JSONJinjaJupyter NotebookMarkdownNumPyPySide6PyTorchPythonRST

Technical Skills

API DesignAspheric SurfacesAutodiffAutomatic DifferentiationBackend AbstractionBackend DevelopmentBug FixBug FixingCode CleanupCode FormattingCode MaintainabilityCode MaintenanceCode OrganizationCode Quality ImprovementCode Refactoring

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

HarrisonKramer/optiland

Feb 2025 Feb 2026
8 Months active

Languages Used

PythonNumPyPyTorchSciPyJupyter NotebookMarkdownRSTreStructuredText

Technical Skills

Bug FixingCoordinate SystemsData VisualizationError HandlingScientific ComputingUnit Testing

Generated by Exceeds AIThis report is designed for sharing and indexing