Jukka Aho b91e81c125 test: Add Tutorial 2 - Gmsh mesh reading (72 tests passing) ...

Educational tutorial covering complete Gmsh.jl workflow:
- Mesh generation recipe (2×5 structured Quad4 grid)
- Reading nodes and extracting coordinates
- Reading elements and topology
- Physical group extraction for boundary conditions
- Creating JuliaFEM Element objects from Gmsh data
- Geometry field validation

Features:
- Co-located .msh file (10 elements, 18 nodes) for self-contained testing
- Recipe script shows exactly how mesh was generated (reproducible)
- Comprehensive tests (72 assertions) validating entire workflow
- Runtime: ~3 seconds
- Type-safe conversions (UInt64 → Int64 for connectivity)

Tutorial series now: 77/77 tests passing (Tutorial 1: 5, Tutorial 2: 72)

2025-11-09 02:24:06 +02:00

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01_fundamentals

test: Add Tutorial 2 - Gmsh mesh reading (72 tests passing)

2025-11-09 02:24:06 +02:00