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marinAI — Glossary ​

Terms used across the marinAI documentation.

  • r/R: Normalized radial station, from hub toward tip.
  • Bézier control point: A draggable point shaping a parametric curve.
  • Bernstein polynomial: Basis function used to evaluate Bézier curves.
  • RMSE: Root-mean-square fitting error reported for CSV-derived curves.
  • Chord: Section width distribution, normalized by diameter.
  • Pitch: Axial advance per revolution, normalized by diameter.
  • Rake: Axial section offset, normalized by diameter.
  • Skew: Angular section offset, normally in degrees.
  • Camber: Section mean-line curvature relative to chord.
  • Thickness: Maximum section thickness relative to chord.
  • BladeX: External blade/propeller geometry library.
  • pythonOCC: Python bindings for OpenCASCADE CAD operations.
  • STL: Triangulated mesh format used for visualization and manufacturing workflows.
  • IGES: CAD boundary-representation exchange format.
  • Tabella progetto: Section-property project table exported as CSV or ZIP.
  • JWKS: JSON Web Key Set used to obtain Keycloak public signing keys.
  • RS256: RSA signature algorithm used for the validated access tokens.
  • Auth.js/NextAuth: Frontend authentication/session framework.
  • OIDC: OpenID Connect login protocol layered on OAuth 2.
  • RP-initiated logout: Logout flow that also terminates the Keycloak SSO session using an ID-token hint.
  • HTTP 422: Validation or invalid-geometry client error used by the current backend.
  • Degenerate tip plate: Zero-thickness closure section used at the blade tip.
  • Navbar: Fixed 64px header consolidating title, history, render, view toggle, color, blades, import/export, guide, notifications, and profile.
  • BladeSnapshot / SnapshotRail: Session-only named blade states with WebP previews (5 slots default, 1–8 allowed); distinct from the 50-step undo history.
  • Notification: A release-notes entry parsed from public/notifications.md and shown in the navbar bell popover; read state lives in localStorage.
  • Base path: Optional subpath deployment. NEXT_PUBLIC_BASE_PATH (browser, via withBasePath()) and BASE_PATH (Next routing/proxy) select the public and server prefixes respectively.