cockroachdb/geos
Oct 2024 – Apr 2025
2 Months active
Languages Used
C++
Technical Skills
Algorithm OptimizationC++Computational GeometryNumerical AnalysisPerformance TestingSoftware Engineering
tinko92
PROFILE
Tinko92
Tinko Bartels enhanced geometric computation precision and robustness in the cockroachdb/geos repository over a two-month period. He refactored the orientation index filter to use Ozaki error bounds and a single-branch evaluation, improving the reliability of spatial queries and reducing the risk of precision-related errors. In addition, he replaced the long double-based approach in the isInCircle predicate with a determinant-based error bound filter, strengthening triangulation stability and cross-platform consistency. Working primarily in C++ and leveraging skills in computational geometry and numerical analysis, Tinko delivered maintainable, well-documented improvements that addressed both algorithmic accuracy and codebase hygiene for geometric operations.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
3Total
Bugs
1
Commits
3
Features
2
Lines of code
119
Activity Months2
Your Network
11 people
Work History
April 2025
1 Commits • 1 Features
Apr 1, 2025Concise monthly summary for 2025-04 focused on the cockroachdb/geos repository. Delivered a Geometric Robustness Enhancement for the Triangle Predicate (isInCircle) to improve triangulation robustness, precision, and stability by replacing the long double path with an error-bound based approach. Implemented determinant-based calculations and an error bound filter to reduce numerical fragility across platforms and inputs.
1 Commits • 1 Features
Apr 1, 2025Concise monthly summary for 2025-04 focused on the cockroachdb/geos repository. Delivered a Geometric Robustness Enhancement for the Triangle Predicate (isInCircle) to improve triangulation robustness, precision, and stability by replacing the long double path with an error-bound based approach. Implemented determinant-based calculations and an error bound filter to reduce numerical fragility across platforms and inputs.
April 2025
October 2024
2 Commits • 1 Features
Oct 1, 2024Month 2024-10: Summary of work in cockroachdb/geos focusing on precision of geometric computations and build hygiene.
October 2024
2 Commits • 1 Features
Oct 1, 2024Month 2024-10: Summary of work in cockroachdb/geos focusing on precision of geometric computations and build hygiene.
Activity
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Quality Metrics
Correctness93.4%
Maintainability86.6%
Architecture86.6%
Performance83.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
Algorithm OptimizationC++Computational GeometryNumerical AnalysisPerformance TestingSoftware Engineering
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