public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
var scale = (float)values[0];
var transform = (Numerics.Matrix4x4)values[1];
var tGroup = new Media3D.Transform3DGroup();
if (scale != 1)
{
var tform = new Media3D.ScaleTransform3D(scale, scale, scale);
tform.Freeze();
tGroup.Children.Add(tform);
}
if (!transform.IsIdentity)
{
var tform = new Media3D.MatrixTransform3D(transform.ToMatrix3D());
tform.Freeze();
tGroup.Children.Add(tform);
}
tGroup.Freeze();
return(tGroup);
}
private Tuple <Material, Media3D.Transform3D> LoadSkull()
{
var m = new VolumeTextureDiffuseMaterial();
var data = VolumeTextureRawDataMaterialCore.LoadRAWFile("male128x256x256.raw", 128, 256, 256);
m.Texture = ProcessData(data.VolumeTextures, data.Width, data.Height, data.Depth, out var transferMap);
m.Color = new Color4(0.6f, 0.6f, 0.6f, 1f);
m.TransferMap = transferMap;
m.Freeze();
var rotate = Matrix.RotationAxis(new Vector3(1, 0, 0), (float)Math.PI);
var transform = new Media3D.MatrixTransform3D(rotate.ToMatrix3D());
transform.Freeze();
return(new Tuple <Material, Media3D.Transform3D>(m, transform));
}
private Tuple <Material, Media3D.Transform3D> LoadTeapot()
{
//var m = new VolumeTextureRawDataMaterial();
//m.Texture = VolumeTextureRawDataMaterialCore.LoadRAWFile("teapot256x256x178.raw", 256, 256, 178);
var m = new VolumeTextureDiffuseMaterial();
var data = VolumeTextureRawDataMaterialCore.LoadRAWFile("teapot256x256x178.raw", 256, 256, 178);
m.Texture = ProcessData(data.VolumeTextures, data.Width, data.Height, data.Depth, out var transferMap);
m.Color = new Color4(1, 1, 1, 0.4f);
m.TransferMap = transferMap;
m.Freeze();
var scale = Matrix.Scaling(2, 2, 178 / 256f * 2);
var rotate = Matrix.RotationAxis(new Vector3(1, 0, 0), (float)Math.PI);
var t = new Media3D.MatrixTransform3D((scale * rotate).ToMatrix3D());
t.Freeze();
return(new Tuple <Material, Media3D.Transform3D>(m, t));
}
private Media3D.Transform3D GetTransform(float scale, Matrix4x4 transform)
{
var tGroup = new Media3D.Transform3DGroup();
if (scale != 1)
{
var tform = new Media3D.ScaleTransform3D(scale, scale, scale);
tform.Freeze();
tGroup.Children.Add(tform);
}
if (!transform.IsIdentity)
{
var tform = new Media3D.MatrixTransform3D(transform.ToMatrix3D());
tform.Freeze();
tGroup.Children.Add(tform);
}
tGroup.Freeze();
return(tGroup);
}
private Model3D ConvertVisualToModel3D(Visual visual, ref double z)
{
Model3D model = null;
Rect bounds = VisualTreeHelper.GetContentBounds(visual);
Viewport3D viewport = visual as Viewport3D;
if (viewport != null)
{
bounds = new Rect(viewport.RenderSize);
}
if (this.includeEmptyVisuals)
{
bounds.Union(VisualTreeHelper.GetDescendantBounds(visual));
}
if (!bounds.IsEmpty && bounds.Width > 0 && bounds.Height > 0)
{
MeshGeometry3D mesh = new MeshGeometry3D();
mesh.Positions.Add(new Point3D(bounds.Left, bounds.Top, z));
mesh.Positions.Add(new Point3D(bounds.Right, bounds.Top, z));
mesh.Positions.Add(new Point3D(bounds.Right, bounds.Bottom, z));
mesh.Positions.Add(new Point3D(bounds.Left, bounds.Bottom, z));
mesh.TextureCoordinates.Add(new Point(0, 0));
mesh.TextureCoordinates.Add(new Point(1, 0));
mesh.TextureCoordinates.Add(new Point(1, 1));
mesh.TextureCoordinates.Add(new Point(0, 1));
mesh.Normals.Add(new Vector3D(0, 0, 1));
mesh.Normals.Add(new Vector3D(0, 0, 1));
mesh.Normals.Add(new Vector3D(0, 0, 1));
mesh.Normals.Add(new Vector3D(0, 0, 1));
mesh.TriangleIndices = new Int32Collection(new int[] { 0, 1, 2, 2, 3, 0 });
mesh.Freeze();
Brush brush = this.MakeBrushFromVisual(visual, bounds);
DiffuseMaterial material = new DiffuseMaterial(brush);
material.Freeze();
model = new GeometryModel3D(mesh, material);
((GeometryModel3D)model).BackMaterial = material;
z -= 1;
}
int childrenCount = VisualTreeHelper.GetChildrenCount(visual);
if (childrenCount > 0)
{
Model3DGroup group = new Model3DGroup();
if (model != null)
{
group.Children.Add(model);
}
for (int i = 0; i < childrenCount; i++)
{
Visual childVisual = VisualTreeHelper.GetChild(visual, i) as Visual;
if (childVisual != null)
{
Model3D childModel = this.ConvertVisualToModel3D(childVisual, ref z);
if (childModel != null)
{
group.Children.Add(childModel);
}
}
}
model = group;
}
if (model != null)
{
Transform transform = VisualTreeHelper.GetTransform(visual);
Matrix matrix = (transform == null ? Matrix.Identity : transform.Value);
Vector offset = VisualTreeHelper.GetOffset(visual);
matrix.Translate(offset.X, offset.Y);
if (!matrix.IsIdentity)
{
Matrix3D matrix3D = new Matrix3D(matrix.M11, matrix.M12, 0, 0, matrix.M21, matrix.M22, 0, 0, 0, 0, 1, 0, matrix.OffsetX, matrix.OffsetY, 0, 1);
Transform3D transform3D = new MatrixTransform3D(matrix3D);
transform3D.Freeze();
model.Transform = transform3D;
}
model.Freeze();
}
return model;
}