Initial CRAN release.
tulpa_mesh(): constrained Delaunay triangulation with
formula interface, sf boundary support (POLYGON, MULTIPOLYGON, holes),
hexagonal lattice refinement, Ruppert refinement
(min_angle, max_area), and vertex
deduplication.tulpa_mesh_sphere(): icosahedral geodesic meshes with
3D surface FEM.tulpa_mesh_1d(): temporal meshes with tridiagonal FEM
matrices.tulpa_mesh_graph(): metric graph meshes for network
SPDE models.fem_matrices(): P1 linear FEM producing mass (C),
stiffness (G), and projection (A) sparse matrices. Supports lumped mass,
barrier models, and parallel assembly via RcppParallel.fem_matrices_p2(): P2 quadratic FEM with 6-node
triangular elements.fem_matrices_nonstationary(): spatially varying
kappa/tau weighting.mesh_quality(), mesh_summary(),
plot.tulpa_mesh(): diagnostics.subdivide_mesh(), subset_mesh(),
mesh_components(): mesh manipulation.refine_mesh(): adaptive refinement from error
indicators.as_tulpa_mesh(): convert fmesher/INLA meshes.barrier_triangles(): identify barrier regions from
polygons.mesh_crs(), set_crs(): CRS support.