Spline 0.2.0

.NET 9.0 This package targets .NET 9.0. The package is compatible with this framework or higher. 
dotnet add package Spline --version 0.2.0
                    


                    

                
NuGet\Install-Package Spline -Version 0.2.0
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="Spline" Version="0.2.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Spline" Version="0.2.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Spline" />
                    


                            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 Spline --version 0.2.0
                    


                    

                
#r "nuget: Spline, 0.2.0"
#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 Spline@0.2.0
#: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=Spline&version=0.2.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Spline&version=0.2.0
                    


                            Install as a Cake Tool

Spline

Reusable spline geometry and fitting primitives extracted from the DemoSpline Avalonia application and published as the Spline NuGet package.

Included

  • Levien-derived curvature-oriented fair spline solving through Spline
  • CAD-style global cubic B-spline interpolation through GlobalBSpline
  • canonical non-rational B-spline representation through BSplineCurve
  • de Boor evaluation and derivative evaluation
  • exact cubic B-spline to Bezier/SVG conversion
  • Bezier path and hit-testing helpers
  • Cubic and two-parameter spline primitives
  • Curve-grid interpolation helpers
  • Headless polyline simplification and corner detection

Identity

  • Package ID: Spline
  • Assembly: Spline.dll
  • Namespace: Spline

Target

Spline currently targets net9.0.

Fair-spline consumer example

The main spline type is also named Spline, so many consumers alias it as SplinePath:

using Spline;
using SplinePath = global::Spline.Spline;

var spline = new SplinePath(controlPoints, isClosed: false);
spline.Solve();
string svg = spline.RenderSvg();

CAD-style global B-spline example

using Spline;

var fitPoints = new[]
{
    new Vec2(0, 0),
    new Vec2(30, 50),
    new Vec2(80, 40),
    new Vec2(120, 0),
};

var result = GlobalBSpline.InterpolateDetailed(
    fitPoints,
    startTangent: new Vec2(1, 0.25),
    endTangent: new Vec2(1, -0.25));

BSplineCurve curve = result.Curve;
Vec2 point = curve.Evaluate(0.5);
Vec2 derivative = curve.EvaluateDerivative(0.5);
string svg = curve.ToSvgPath();

BSplineCurve exposes Degree, ControlPoints, Knots, and unit Weights for CAD/NURBS-oriented interchange. The input fit points are distinct from the solved B-spline control points.

Product Compatible and additional computed target framework versions.
.NET net9.0 is compatible.  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.

  • net9.0

    • No dependencies.

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
0.2.0 99 9/9/2026
0.1.0 182 3/12/2026

Spline 0.2.0 introduces production global cubic B-spline interpolation from fit points and endpoint tangents, canonical CAD B-spline geometry, de Boor evaluation and derivatives, exact cubic Bezier conversion, discontinuous-knot-safe path export, comprehensive tests, samples, and documentation.