轉換Model3DGroup兩次

Question

我需要轉換一次Model3DGroup兩次（一次設置位置，一次設置旋轉）。我試過這個：

var model = ModelImporter.Load(gameAssetPath); 
model.Transform = new TranslateTransform3D(
     placedObject.SpawnCoordinates.X, 
     placedObject.SpawnCoordinates.Y, 
     placedObject.SpawnCoordinates.Z); 
var modelRotation = new Model3DGroup(); 
modelRotation.Children.Add(model); 
modelRotation.Transform = new RotateTransform3D(new AxisAngleRotation3D(), placedObject.SpawnCoordinates.Roll, placedObject.SpawnCoordinates.Pitch, placedObject.SpawnCoordinates.Yaw); 

而這是一個不行。我搜索了谷歌和SO，似乎無法找到任何東西。

Answer 1

你需要TransformGroup這個類。

該課程將結合您的轉換。

var model = ModelImporter.Load(gameAssetPath); 
var modelRotation = new Model3DGroup(); 
modelRotation.Children.Add(model); 
var t1 = new TranslateTransform3D(
     placedObject.SpawnCoordinates.X, 
     placedObject.SpawnCoordinates.Y, 
     placedObject.SpawnCoordinates.Z); 
var t2 = new RotateTransform3D(
     new AxisAngleRotation3D(), 
     placedObject.SpawnCoordinates.Roll, 
     placedObject.SpawnCoordinates.Pitch, 
     placedObject.SpawnCoordinates.Yaw); 
var tg = new TransformGroup(); 
tg.Children.Add(t1); 
tg.Children.Add(t2); 
modelRotation.Transform = tg;