Range FEA Model Library

range-model-lib is the core data-model layer of the Range FEA suite. It defines every entity that describes a finite-element problem — geometry, mesh, physics setup, solver configuration, and results — and provides the serialisation, mesh-generation, and post-processing routines that operate on them.

Responsibilities

Geometry and mesh

• RNode, RElement — nodes and elements with shape-function evaluation, Jacobian computation, and isoparametric coordinate mapping
• RPoint, RLine, RSurface, RVolume — entity groups that own sets of elements and carry boundary/initial conditions and material assignments
• RTriangle, RTetrahedron, RSegment — geometric primitives used by the mesh generator and ray-tracing subsystems
• RMeshGenerator, RMeshInput, RMeshSetup — interface to the TetGen tetrahedral mesher
• RShapeGenerator — parametric shape creation

Physics setup

• RBoundaryCondition, RInitialCondition, REnvironmentCondition — typed conditions attached to entity groups, each carrying time-dependent RConditionComponent values
• RMaterial, RMaterialProperty — material database with per-property interpolation
• RTimeSolver, RModalSetup, REigenValueSolverConf, RMatrixSolverConf — solver configuration objects

Results and post-processing

• RVariable, RVariableData — per-node or per-element result fields
• RScalarField, RVectorField, RStreamLine, RIso, RCut — derived post-processing datasets
• RMonitoringPoint, RMonitoringPointManager — time-history probes at arbitrary spatial locations
• RViewFactorMatrix — radiation view-factor storage and I/O

Sparse linear algebra

• RSparseVector<T>, RSparseMatrix — sorted sparse-vector and sparse-matrix types used by all solvers for global system assembly

File I/O

• RModel serialises the complete problem (mesh + setup + results) to the native .rml binary format
• Import: .msh (Gmsh), .stl, .raw
• RFileManager, RFileHeader, RSaveFile — file versioning and format management

Central class

RModel inherits from RProblem (physics-type registry) and RResults (result-variable storage). It owns the full mesh (nodes, elements), all entity groups, all conditions, materials, solver settings, and post-processing datasets. All solvers in range-solver-lib receive a pointer to an RModel instance and read/write through its API.

Dependencies

Dependency	Role
range-base-lib	Math primitives, logging, vectors, matrices
Qt6::Core, Qt6::Gui	QString, QVector, file I/O, GUI-facing data types

Build

Built as a static library via CMake as part of the top-level Range FEA build:

cmake -S src -B build-Release
cmake --build build-Release --parallel -- range-model-lib