public static async Task <Geometry3D> CreateGeometryAsync(string fileName) =>
await Task.Run(() =>
{
var meshBuilder = new MeshBuilder(false, true);
var points = PointReader.ReadPoints(fileName);
points = PointProcessor.ProcessPoints(points);
points = BSplineSurfaceBuilder.BuildSurface(points, 5, new Size(100, 100));
var width = points.GetLength(0);
var heigth = points.GetLength(1);
for (var y = 0; y < heigth; y++)
{
for (var x = 0; x < width; x++)
{
meshBuilder.Positions.Add(points[x, y]);
meshBuilder.TextureCoordinates.Add(new Point(x, y));
if (x != width - 1 && y != heigth - 1)
{
meshBuilder.TriangleIndices.Add(x + y *width);
meshBuilder.TriangleIndices.Add(x + (y + 1) * width);
meshBuilder.TriangleIndices.Add(x + 1 + y *width);
meshBuilder.TriangleIndices.Add(x + 1 + y *width);
meshBuilder.TriangleIndices.Add(x + (y + 1) * width);
meshBuilder.TriangleIndices.Add(x + 1 + (y + 1) * width);
}
}
}
Geometry = meshBuilder.ToMesh();
Geometry.Freeze();
return(Geometry);
});
private void Update()
{
Geometry3D geometry = Tessellate();
GeometryModel3D content;
if (geometry != null)
{
if (GeometryFrozen)
{
geometry.Freeze();
}
content = new GeometryModel3D();
content.Geometry = geometry;
}
else
{
content = null;
}
SetContent(content);
}