Framework: MESHER

Robust & Effective Meshing

Sim4Life offers a unique array of discretization tools, ranging from the interactive generation of geometrically adaptive rectilinear grids by ray tracing combined with robust intersection testing to Delauney, advancing front, and octree-based methods for unstructured mesh generation in FEM-based solvers. Both irregular anatomical structures and CAD-based models can be handled robustly and flexibly while preserving features.

Unstructured meshing and FEM simulation to model the neuroelectric response of complex nerves.

Adaptive, rectilinear meshes (e.g., for P-EM-FDTD, P-ACOUSTICS, P-THERMAL) can be generated interactively with excellent heuristics-based automatic grid generation and flexible tuning.

A variety of volumetric mesh tools (e.g., for P-EM-UQS, P-FLOW) capable of generating high-quality element, adaptive, feature preserving, unstructured meshes from CAD data and complex anatomical models are provided.

The only surface processing tool capable of producing topologically conforming, high triangle element quality, non-(self) intersecting surface meshes from noisy segmentation data; the ideal basis for unstructured volume mesh generation.

Key Features - Rectilinear Mesh

Adaptive, non-uniform meshing (graded)
Fastest high-speed grid generator, object-analysis-intelligence
Unique FDTD/GPU subgridding scheme (structure-adaptive)
Predefined/customizable grid templates (fast settings assignment)

New user-friendly & intuitive engine (gang axes / settings simplification)
Voxel connectivity check for PEC/metal connectivity verification
High-level automation (one-click-grid)
Broad variety of user-defined grid settings
Real-time object selective gridding

Geometrical analysis of solids for grid refinement
GUI-based selection of estimated grid size/simulation time trade-off
Fast 3D or 2D conformal or Yee mesh viewer
Region selective mesh visualization (plane, cube, etc.)
Fully native 64 bit support for large meshes (>> 1 billion cells)

Key Features - Volumetric Mesh

Tetrahedral volume mesher based on VKI engine
Mesh import tools for third-party meshes (e.g., VTK, VTU, EXODUS, NASTRAN)
Local remeshing tool to adapt surface or volume meshes to improve mesh quality
Boolean operations: Merge, Imprint

Mesh refinement tool to refine the overall mesh or a sub-volume
Mesh extrusion tool to extrude 2D meshes along a trajectory into prismatic/hexahedral based elongated structures
Thin layer insertion tool to insert thin layers at interfaces between meshed regions

Mesh quality viewer
Delaunay approach or an Advancing Front method (for volumetric meshes)
Mesh quality inspector (wide range of metrics and rapid visualization of low-quality element locations requiring further processing)
Supports refinement regions