SpiroNet

The .NET C# port of libspiro - conversion between spiro control points and bezier's

Introduction

For libspiro introduction please see libspiro project page. There is also GUI version using libspiro written in C#/WPF for Windows.

Usage

Provided examples create geometric paths as output using Path Markup Syntax for WPF/Silverlight and Path Data for SVG.

var points = new SpiroControlPoint[4];
points[0].X = -100; points[0].Y = 0; points[0].Type = SpiroPointType.G4;
points[1].X = 0; points[1].Y = 100; points[1].Type = SpiroPointType.G4;
points[2].X = 100; points[2].Y = 0; points[2].Type = SpiroPointType.G4;
points[3].X = 0; points[3].Y = -100; points[3].Type = SpiroPointType.G4;

var bc = new PathBezierContext();
var success = Spiro.SpiroCPsToBezier0(points, 4, true, bc);

Console.WriteLine(bc);
Console.WriteLine("Success: {0} ", success);

var points = new SpiroControlPoint[5];
points[0].X = -100; points[0].Y = 0; points[0].Type = SpiroPointType.G4;
points[1].X = 0; points[1].Y = 100; points[1].Type = SpiroPointType.G4;
points[2].X = 100; points[2].Y = 0; points[2].Type = SpiroPointType.G4;
points[3].X = 0; points[3].Y = -100; points[3].Type = SpiroPointType.G4;
points[4].X = 0; points[4].Y = 0; points[4].Type = SpiroPointType.End;

var bc = new PathBezierContext();
var success = Spiro.TaggedSpiroCPsToBezier0(points, bc);

Console.WriteLine(bc);
Console.WriteLine("Success: {0} ", success);

var points = new SpiroControlPoint[4];
points[0].X = -100; points[0].Y = 0; points[0].Type = SpiroPointType.OpenContour;
points[1].X = 0; points[1].Y = 100; points[1].Type = SpiroPointType.G4;
points[2].X = 100; points[2].Y = 0; points[2].Type = SpiroPointType.G4;
points[3].X = 0; points[3].Y = -100; points[3].Type = SpiroPointType.EndOpenContour;

var bc = new PathBezierContext();
var success = Spiro.TaggedSpiroCPsToBezier0(points, bc);

Console.WriteLine(bc);
Console.WriteLine("Success: {0} ", success);