FastGeoMesh 1.3.1

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package FastGeoMesh --version 1.3.1
                    


                    

                
NuGet\Install-Package FastGeoMesh -Version 1.3.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="FastGeoMesh" Version="1.3.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="FastGeoMesh" Version="1.3.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="FastGeoMesh" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add FastGeoMesh --version 1.3.1
                    


                    

                
#r "nuget: FastGeoMesh, 1.3.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package FastGeoMesh@1.3.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=FastGeoMesh&version=1.3.1
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=FastGeoMesh&version=1.3.1
                    


                            Install as a Cake Tool

FastGeoMesh

Fast quad meshing for prismatic volumes from 2D footprints and Z elevations.

CI Codecov .NET 8

⚡ Performance

Sub-millisecond meshing with .NET 8 optimizations:

  • Simple Prism: ~305 μs, 87 KB
  • Complex Geometry: ~340 μs, 87 KB
  • With Holes: ~907 μs, 1.3 MB
  • Geometry Ops: < 10 μs, zero allocations

Benchmarked on .NET 8.0.20, X64 RyuJIT AVX2

Features

  • 🏗️ Prism mesher (side faces + caps)
  • 📐 Rectangle fast-path + generic tessellation
  • 🎯 Quad quality scoring & threshold (MinCapQuadQuality)
  • 📑 Optional fallback explicit cap triangles (OutputRejectedCapTriangles)
  • ⚙️ Constraint Z levels & geometry integration
  • 📤 Exporters: OBJ (quads+triangles), glTF (triangulated), SVG (top view)

Quick start

using FastGeoMesh.Geometry;
using FastGeoMesh.Meshing;
using FastGeoMesh.Structures;
using FastGeoMesh.Meshing.Exporters;

// Define geometry (~305μs meshing time)
var poly = Polygon2D.FromPoints(new[]{ 
    new Vec2(0,0), new Vec2(20,0), new Vec2(20,5), new Vec2(0,5) 
});
var structure = new PrismStructureDefinition(poly, -10, 10);
structure.AddConstraintSegment(new Segment2D(new Vec2(0,0), new Vec2(20,0)), 2.5);

// Fast preset for optimal performance
var options = MesherOptions.CreateBuilder()
    .WithFastPreset()
    .WithTargetEdgeLengthXY(0.5)
    .WithTargetEdgeLengthZ(1.0)
    .WithRejectedCapTriangles(true)
    .Build();

// Generate and export
var mesh = new PrismMesher().Mesh(structure, options);
var indexed = IndexedMesh.FromMesh(mesh, options.Epsilon);

ObjExporter.Write(indexed, "mesh.obj");
GltfExporter.Write(indexed, "mesh.gltf");
SvgExporter.Write(indexed, "mesh.svg");

Performance Presets

// Fast: ~305μs, 87KB - Real-time applications
var fast = MesherOptions.CreateBuilder().WithFastPreset().Build();

// High-Quality: ~1.3ms, 17MB - CAD precision  
var quality = MesherOptions.CreateBuilder().WithHighQualityPreset().Build();

License: MIT | Docs & source: https://github.com/MabinogiCode/FastGeoMesh

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.3.1 21 9/30/2025
1.3.0 39 9/29/2025
1.1.0 66 9/26/2025
1.0.0 82 9/26/2025

1.1.0: Added cap triangle emission (OutputRejectedCapTriangles), triangle support in mesh/indexed + OBJ exporter, docs updated.