/// <summary>
///
/// </summary>
/// <param name="args"></param>
public static void Start()
{
var mesh = HeMesh3d.Factory.CreateFromOBJ(Paths.Resources + _fileIn);
var verts = mesh.Vertices;
var texCoords = new Vec2d[verts.Count];
double scale = 0.5;
double offset = scale * Math.PI * 0.25;
// create texture coordinates from implicit function
for (int i = 0; i < verts.Count; i++)
{
var p = verts[i].Position * scale;
var u = ImplicitSurfaces.Gyroid(p.X, p.Y, p.Z);
var v = ImplicitSurfaces.Gyroid(p.X + offset, p.Y + offset, p.Z + offset);
texCoords[i] = new Vec2d(u, v);
}
// compute vertex normals & write to file
mesh.UpdateVertexNormals();
MeshIO.WriteToObj(mesh, Paths.Resources + _fileOut, v => texCoords[v]);
Console.WriteLine("File written successfully. Press return to exit.");
Console.ReadLine();
}
/// <summary>
///
/// </summary>
public static void Start()
{
// import halfedge mesh
var mesh = HeMesh3d.Factory.CreateFromOBJ(Paths.Resources + _fileIn);
// create particles
var particles = mesh.Vertices.Select(v => new Particle(v.Position)).ToArray();
// create constraints
var constraints = mesh.Faces.Where(f => !f.IsDegree3)
.Select(f => new PlanarNgon(f.Vertices.Select(v => v.Index)))
.ToArray();
// create solver
var solver = new ConstraintSolver();
// wait for keypress to start the solver
Console.WriteLine("Press return to start the solver.");
Console.ReadLine();
// step the solver until converged
while (!solver.IsConverged)
{
solver.Step(particles, constraints, true);
Console.WriteLine($" step {solver.StepCount}");
}
Console.WriteLine("\nSolver converged! Press return to exit.");
// update mesh vertices
mesh.Vertices.Action(v => v.Position = particles[v].Position); // mesh elements (vertices, halfedges, faces) are implicitly converted to their index
// compute vertex normals & write to file
mesh.UpdateVertexNormals(true);
MeshIO.WriteToObj(mesh, Paths.Resources + _fileOut);
Console.ReadLine();
}