June 2025: NAD Viewer visualization fix for three-winding transformers with phase tap changer. Refactored edge drawing logic to correctly identify and render these transformer types, and added a new SVG path visual indicator to improve clarity. Change linked to commit 2fc8a9cdd575b7ef28e2d30e4178749466526d46, titled 'Fix moving of three windings transformers with phase tap changer in NAD viewer (#200)'.

March 2025 (2025-03) monthly summary for powsybl-network-viewer: Delivered the Network Area Diagram Viewer Export and Screenshot feature. Implemented export to SVG/PNG and screenshot capture, with new UI buttons and robust save/screenshot logic. This enables stakeholders to save, share, and document network diagrams directly from the viewer, improving reporting and collaboration. Commits reference: 3238b8c2b4f0037f93ad49b7f29e8b7b39016135 ('Add save SVG/PNG and screenshot buttons in network area diagram (#184)'). Why it matters: reduces manual steps, accelerates decision making, and improves reproducibility of network diagrams in reviews and incidents.

February 2025 (Month: 2025-02) – powsybl-network-viewer: Focused on improving NAD Viewer usability and layout through targeted UI enhancements and reliable zoom functionality. The work is aligned with reducing analyst effort in inspecting network diagrams and enabling faster data-driven decisions.

January 2025: Focused on advancing NAD Viewer in powsybl-network-viewer with a set of user experience enhancements, API improvements, and demo integrations that unlock broader network visualization capabilities and faster onboarding for new demos. Delivered PEGASE network integration into the NAD viewer demo, expanded SVG/metadata access, and strengthened interaction patterns for end users. Also performed targeted cleanup to improve maintainability and reduce styling fragility in SVG demos.

December 2024 focused on delivering network diagram accuracy improvements and stabilizing the NAD viewer across the diagram suite. Key work includes enabling JSON-driven layout positioning and fictitious node support in Network Area Diagrams, plus fixes to ensure correct visualization of fictitious nodes in the NAD viewer. The work improves diagram fidelity, customization capabilities, and overall UX for network visualization, with clear commit traceability.

In 2024-11, delivered targeted frontend enhancements and fixes for the NAD diagram viewer in the powsybl-network-viewer, emphasizing UX improvements, maintainability, bug resolution, and test coverage. The work enhances business value by ensuring accurate rendering and intuitive interaction even when data is sparse, while reducing regression risk through unit tests and architectural cleanup.

Month 2024-10: Key delivery in powsybl-network-viewer focused on configuration modularity and maintainability. Implemented JSON-based externalization of network area diagram metadata, decoupling data from SVG for easier updates and configuration management. This reduces hit surface for changes to visuals and enables quicker iteration of network diagrams. No major bug fixes reported this month.