protected override MeshGeometry3D Tessellate()
{
var b = new MeshBuilder();
b.AddCubeFace(Center, new Vector3D(-1, 0, 0), new Vector3D(0, 0, 1), Length, Width, Height);
b.AddCubeFace(Center, new Vector3D(1, 0, 0), new Vector3D(0, 0, -1), Length, Width, Height);
b.AddCubeFace(Center, new Vector3D(0, -1, 0), new Vector3D(0, 0, 1), Width, Length, Height);
b.AddCubeFace(Center, new Vector3D(0, 1, 0), new Vector3D(0, 0, -1), Width, Length, Height);
if (TopFace)
b.AddCubeFace(Center, new Vector3D(0, 0, 1), new Vector3D(0, -1, 0), Height, Length, Width);
if (BottomFace)
b.AddCubeFace(Center, new Vector3D(0, 0, -1), new Vector3D(0, 1, 0), Height, Length, Width);
return b.ToMesh();
}
private static GeometryModel3D CreateFace(int face, Point3D center, double width, double length, double height, Brush brush)
{
var m = new GeometryModel3D();
var b = new MeshBuilder();
switch (face)
{
case 0:
b.AddCubeFace(center, new Vector3D(-1, 0, 0), new Vector3D(0, 0, 1), length, width, height);
break;
case 1:
b.AddCubeFace(center, new Vector3D(1, 0, 0), new Vector3D(0, 0, -1), length, width, height);
break;
case 2:
b.AddCubeFace(center, new Vector3D(0, -1, 0), new Vector3D(0, 0, 1), width, length, height);
break;
case 3:
b.AddCubeFace(center, new Vector3D(0, 1, 0), new Vector3D(0, 0, -1), width, length, height);
break;
case 4:
b.AddCubeFace(center, new Vector3D(0, 0, -1), new Vector3D(0, 1, 0), height, length, width);
break;
case 5:
b.AddCubeFace(center, new Vector3D(0, 0, 1), new Vector3D(0, -1, 0), height, length, width);
break;
}
m.Geometry = b.ToMesh();
m.Material = MaterialHelper.CreateMaterial(brush);
return m;
}
private void addFace(Vector3D normal, Vector3D up, Brush b, string text)
{
var grid = new Grid { Width = 20, Height = 20 };
grid.Background = b;
grid.Children.Add(new TextBlock
{
Text = text,
VerticalAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Center,
FontSize = 15,
Foreground = Brushes.White
});
grid.Arrange(new Rect(new Point(0, 0), new Size(20, 20)));
var bmp = new RenderTargetBitmap((int)grid.Width, (int)grid.Height, 96, 96, PixelFormats.Default);
bmp.Render(grid);
Material material = MaterialHelper.CreateMaterial(new ImageBrush(bmp));
double a = Size;
var builder = new MeshBuilder();
builder.AddCubeFace(Center, normal, up, a, a, a);
var geometry = builder.ToMesh();
geometry.Freeze();
var model = new GeometryModel3D() { Geometry = geometry, Material = material };
var element = new ModelUIElement3D() { Model = model };
element.MouseLeftButtonDown += face_MouseLeftButtonDown;
//element.MouseEnter += face_MouseEnter;
//element.MouseLeave += face_MouseLeave;
_normal.Add(element, normal);
_up.Add(element, up);
Children.Add(element);
}
