TetGen vs Gmsh

Struggling to choose between TetGen and Gmsh? Both products offer unique advantages, making it a tough decision.

TetGen is a Development solution with tags like mesh-generation, tetrahedral-mesh, delaunay-triangulation.

It boasts features such as 3D Delaunay tetrahedralization, Mesh refinement, Mesh optimization, Mesh quality metrics, Mesh quality improvement, Mesh boundary recovery, Mesh boundary protection, Mesh constrained Delaunay tetrahedralization, Mesh constrained Delaunay refinement, Mesh sizing function specification, Mesh regional attributes, Mesh volume constraints, Mesh surface constraints, Mesh regional constraints, Mesh hole insertion, Mesh diagnostics and pros including Robust and efficient algorithms, High quality tetrahedral meshes, Open source and free to use, Customizable through APIs, Cross-platform.

On the other hand, Gmsh is a Development product tagged with mesh-generator, finite-element-analysis, cad-engine, structural-mechanics, fluid-dynamics, electromagnetism, heat-transfer.

Its standout features include Built-in CAD engine to model geometries, Automatic mesh generation from geometries, Support for tetrahedral and hexahedral mesh elements, Mesh optimization algorithms, Post-processing and visualization capabilities, and it shines with pros like Free and open source, Cross-platform availability, Scriptable using Python, Can handle complex geometries, Large user and developer community.

To help you make an informed decision, we've compiled a comprehensive comparison of these two products, delving into their features, pros, cons, pricing, and more. Get ready to explore the nuances that set them apart and determine which one is the perfect fit for your requirements.

TetGen

TetGen

TetGen is an open source quality tetrahedral mesh generator and 3D Delaunay triangulator. It can generate tetrahedral meshes for given 3D polygonal domains with quality guarantees. It is useful for finite element analysis simulations.

Categories:
mesh-generation tetrahedral-mesh delaunay-triangulation

TetGen Features

  1. 3D Delaunay tetrahedralization
  2. Mesh refinement
  3. Mesh optimization
  4. Mesh quality metrics
  5. Mesh quality improvement
  6. Mesh boundary recovery
  7. Mesh boundary protection
  8. Mesh constrained Delaunay tetrahedralization
  9. Mesh constrained Delaunay refinement
  10. Mesh sizing function specification
  11. Mesh regional attributes
  12. Mesh volume constraints
  13. Mesh surface constraints
  14. Mesh regional constraints
  15. Mesh hole insertion
  16. Mesh diagnostics

Pricing

  • Open Source

Pros

Robust and efficient algorithms

High quality tetrahedral meshes

Open source and free to use

Customizable through APIs

Cross-platform

Cons

Limited documentation and examples

Steep learning curve

Command line interface only

Lacks graphical user interface


Gmsh

Gmsh

Gmsh is an open source 3D finite element mesh generator with a built-in CAD engine and post-processor. It can generate meshes suitable for finite element analysis in fields like structural mechanics, fluid dynamics, electromagnetism and heat transfer.

Categories:
mesh-generator finite-element-analysis cad-engine structural-mechanics fluid-dynamics electromagnetism heat-transfer

Gmsh Features

  1. Built-in CAD engine to model geometries
  2. Automatic mesh generation from geometries
  3. Support for tetrahedral and hexahedral mesh elements
  4. Mesh optimization algorithms
  5. Post-processing and visualization capabilities

Pricing

  • Open Source

Pros

Free and open source

Cross-platform availability

Scriptable using Python

Can handle complex geometries

Large user and developer community

Cons

Steep learning curve

Limited documentation and tutorials

Not very user friendly

Exporting results can be challenging