
Erik Narhi developed and enhanced analytical and visualization tools across the BHoM_Engine and LadybugTools_Toolkit repositories, focusing on building performance and environmental risk analysis. He implemented robust geometry processing and facade energy assessment features using Python and C#, introducing continuous U-value calculations and condensation risk heatmaps that improved modeling accuracy and reliability. Erik refactored codebases for maintainability, standardized threshold constants, and expanded unit testing to ensure regression protection. His work included backend development, data validation, and scientific computing, resulting in more configurable, accurate, and scalable workflows for architectural analysis, with careful attention to code organization and integration readiness.

December 2025: Delivered UValueOpeningAW enhancements in BHoM_Engine, consolidating updates to the UValueOpeningAW class, revising the U-Value calculation method, updating versioning, and expanding tests. Namespace adjustments were applied and unit tests now validate facade engine computations. This work improves calculation accuracy, regression protection, and release readiness for HVAC-related analyses.
December 2025: Delivered UValueOpeningAW enhancements in BHoM_Engine, consolidating updates to the UValueOpeningAW class, revising the U-Value calculation method, updating versioning, and expanding tests. Namespace adjustments were applied and unit tests now validate facade engine computations. This work improves calculation accuracy, regression protection, and release readiness for HVAC-related analyses.
Concise monthly summary for 2025-09 focusing on business value and technical achievements in BHoM_Engine.
Concise monthly summary for 2025-09 focusing on business value and technical achievements in BHoM_Engine.
In 2025-08, delivered robust luminaire placement on curves with enhanced alignment capabilities in BHoM_Engine. Refactored to support orientation vectors and prevent Nurbs-curve placements for improved robustness and accuracy, aligning with lighting design workflow needs. Established groundwork for per-direction vector alignment to support scalable, reliable deployments.
In 2025-08, delivered robust luminaire placement on curves with enhanced alignment capabilities in BHoM_Engine. Refactored to support orientation vectors and prevent Nurbs-curve placements for improved robustness and accuracy, aligning with lighting design workflow needs. Established groundwork for per-direction vector alignment to support scalable, reliable deployments.
May 2025 monthly summary for BHoM/LadybugTools_Toolkit: Implemented cross-module standardization of threshold constants for condensation risk calculations and the heatmap, aligning naming from default_thresholds to DEFAULT_THRESHOLDS. This improves consistency, maintainability, and reduces the risk of misconfiguration across workflows. Changes were implemented via two commits: 4bf06811f2895a4ec593dd29848a973471f9cbd1 and ab515521a3704aab0fd22eeea3e9aa00361fa84b. There were no separate bug fixes recorded this month; the refactor addresses potential defects and sets a clearer foundation for future risk-analysis enhancements. Impact: more reliable risk assessments, easier onboarding for new contributors, and a cleaner, more scalable codebase.
May 2025 monthly summary for BHoM/LadybugTools_Toolkit: Implemented cross-module standardization of threshold constants for condensation risk calculations and the heatmap, aligning naming from default_thresholds to DEFAULT_THRESHOLDS. This improves consistency, maintainability, and reduces the risk of misconfiguration across workflows. Changes were implemented via two commits: 4bf06811f2895a4ec593dd29848a973471f9cbd1 and ab515521a3704aab0fd22eeea3e9aa00361fa84b. There were no separate bug fixes recorded this month; the refactor addresses potential defects and sets a clearer foundation for future risk-analysis enhancements. Impact: more reliable risk assessments, easier onboarding for new contributors, and a cleaner, more scalable codebase.
March 2025 monthly summary for BHoM/LadybugTools_Toolkit. Focused on delivering a robust condensation risk visualization and analysis workflow with strong integration readiness for BHoM. Key work includes an overhaul of visualization components with annual threshold visualization, annotated threshold lines, and dedicated wrappers for charts, tables, and heatmaps, plus a facades-based code organization and color-map enhancements to improve clarity and consistency. In parallel, enhanced default threshold robustness and edge-case handling to ensure safe, sorted threshold lists across charts and heatmaps. Refactoring and wrapper work increased maintainability and future extension capability, with cleanup of method names and args for clearer usage, and expanded data coverage in the annual_monthly_table for complete row inclusion.
March 2025 monthly summary for BHoM/LadybugTools_Toolkit. Focused on delivering a robust condensation risk visualization and analysis workflow with strong integration readiness for BHoM. Key work includes an overhaul of visualization components with annual threshold visualization, annotated threshold lines, and dedicated wrappers for charts, tables, and heatmaps, plus a facades-based code organization and color-map enhancements to improve clarity and consistency. In parallel, enhanced default threshold robustness and edge-case handling to ensure safe, sorted threshold lists across charts and heatmaps. Refactoring and wrapper work increased maintainability and future extension capability, with cleanup of method names and args for clearer usage, and expanded data coverage in the annual_monthly_table for complete row inclusion.
February 2025 performance summary focusing on delivering robust geometry operations and end-to-end condensation risk analytics across two repositories. Emphasis on improving robustness, accuracy, and configurability to enable reliable decision support for building performance analysis.
February 2025 performance summary focusing on delivering robust geometry operations and end-to-end condensation risk analytics across two repositories. Emphasis on improving robustness, accuracy, and configurability to enable reliable decision support for building performance analysis.
December 2024: Delivered SAM-based U-value Calculation Enhancements for Facade Components in BHoM_Engine. Implemented continuous SAM-based U-value calculations for panels and openings and refactored overarching U-value methods to handle null U-values, yielding more accurate and robust facade energy assessments. This work improves modeling fidelity, supports better design decisions, and reduces risk in energy performance evaluations.
December 2024: Delivered SAM-based U-value Calculation Enhancements for Facade Components in BHoM_Engine. Implemented continuous SAM-based U-value calculations for panels and openings and refactored overarching U-value methods to handle null U-values, yielding more accurate and robust facade energy assessments. This work improves modeling fidelity, supports better design decisions, and reduces risk in energy performance evaluations.
Overview of all repositories you've contributed to across your timeline