private static void DrawArmature(Armature2D armature, IReadOnlyList <float> solution, Vector2 target)
{
var builder = new SvgBuilder(10);
builder.Outline(new[] {
new Vector2(-50, -50),
new Vector2(50, -50),
new Vector2(50, 50),
new Vector2(-50, 50),
});
var index = 0;
var pos = Vector2.Zero;
var parentTransform = Matrix4x4.Identity;
foreach (var bone in armature.Bones)
{
builder.Circle(pos, 0.5f, "yellow");
var localTransform = TriangulationSolver2D.CalculateLocalTransform(bone, ToRadians(solution[index]));
parentTransform = localTransform * parentTransform;
var end = Vector2.Transform(new Vector2(0, 0), parentTransform);
index++;
builder.Line(pos, end, 2, "red");
pos = end;
}
builder.Circle(target, 0.5f, "blue");
var str = Regex.Replace(builder.ToString(), "g transform=\"translate\\((.+?), (.+?)\\)\"", "g transform=\"translate(${1}, 100) scale(1, -1)\"");
Console.WriteLine(str);
}
private static SvgBuilder Draw <TA, TB, TC>(Mesh <TA, TB, TC> mesh, Func <TC, string> faceColor)
{
var svg = new SvgBuilder(10);
foreach (var face in mesh.Faces)
{
svg.Outline(face.Vertices.Select(v => v.Position).ToArray(), stroke: "none", fill: faceColor(face.Tag));
}
foreach (var edge in mesh.HalfEdges.Where(a => a.IsPrimaryEdge))
{
svg.Line(edge.StartVertex.Position, edge.EndVertex.Position, 1, "black");
}
foreach (var vertex in mesh.Vertices)
{
svg.Circle(vertex.Position, 0.2f, "black");
}
return(svg);
}
static void Main(string[] args)
{
Stopwatch w = new Stopwatch();
w.Start();
var ssk = StraightSkeleton.Generate(new Vector2[] {
new Vector2(-10, 10),
new Vector2(-1, 10),
new Vector2(0, 11),
new Vector2(1, 10),
new Vector2(10, 10),
new Vector2(10, -2),
new Vector2(5, 0),
new Vector2(7, -10),
new Vector2(-7, -10),
new Vector2(-5, 0),
new Vector2(-10, -2),
}, new Vector2[][] {
new Vector2[] {
new Vector2(2, 2),
new Vector2(2, -2),
new Vector2(-2, -2),
new Vector2(-2, 2)
}
});
w.Stop();
Stopwatch w2 = new Stopwatch();
w2.Start();
//Extract data from result
var builder = new SvgBuilder(30);
//Draw outline
foreach (var edge in ssk.Borders)
{
builder.Circle(edge.Start.Position, 0.2f, "blue");
builder.Circle(edge.End.Position, 0.2f, "blue");
builder.Line(edge.Start.Position, edge.End.Position, 2, "blue");
}
//Draw offsets
for (var i = 1; i < 10; i++)
{
var offset = ssk.Offset(i / 2f);
foreach (var polygon in offset)
{
builder.Outline(polygon, "green");
}
}
//Draw spokes
foreach (var edge in ssk.Spokes)
{
builder.Line(edge.Start.Position, edge.End.Position, 4, "lime");
}
//Draw straight skeleton
foreach (var edge in ssk.Skeleton)
{
builder.Circle(edge.Start.Position, 0.2f, "hotpink");
builder.Circle(edge.End.Position, 0.2f, "hotpink");
builder.Line(edge.Start.Position, edge.End.Position, 2, "hotpink");
}
Console.WriteLine(builder);
Console.Title = string.Format("Elapsed: {0}ms {1}ms", w.ElapsedMilliseconds, w2.ElapsedMilliseconds);
Console.ReadLine();
}