Adding Transformation to the Node

Aspose.3D for .NET offers to rotate objects in 3D space. There are three ways to define object’s rotation in 3D space, Euler angles, Quaternion and Custom Matrix, all of them are supported by the Transform class.

TSR (Translation/Scaling/Rotation) are most commonly used in 3D scenario, we provided a class Transform to access these in Aspose.3D. Affine transformations include:

• Translation
• Scaling
• Rotation
• Shear mapping
• Squeeze mapping

The Mesh class object is being used in the code. We can create a Mesh class object as narrated there.

Rotate by Quaternion

// For complete examples and data files, please go to https://github.com/aspose-3d/Aspose.3D-for-.NET
// Initialize scene object
Scene scene = new Scene();

// Initialize Node class object
Node cubeNode = new Node("cube");

// Call Common class create mesh using polygon builder method to set mesh instance 
Mesh mesh = Common.CreateMeshUsingPolygonBuilder(); 
           
// Point node to the Mesh geometry
cubeNode.Entity = mesh;
// Set rotation
cubeNode.Transform.Rotation = Quaternion.FromRotation(new Vector3(0, 1, 0), new Vector3(0.3, 0.5, 0.1));            
// Set translation
cubeNode.Transform.Translation = new Vector3(0, 0, 20);            
// Add cube to the scene
scene.RootNode.ChildNodes.Add(cubeNode);            
   
// Save 3D scene in the supported file formats
scene.Save("TransformationToNode.fbx");

Rotate by Euler Angles

// For complete examples and data files, please go to https://github.com/aspose-3d/Aspose.3D-for-.NET
// Initialize scene object
Scene scene = new Scene();

// Initialize Node class object
Node cubeNode = new Node("cube");

// Call Common class create mesh using polygon builder method to set mesh instance 
Mesh mesh = Common.CreateMeshUsingPolygonBuilder(); 
           
// Point node to the Mesh geometry
cubeNode.Entity = mesh;
// Euler angles
cubeNode.Transform.EulerAngles = new Vector3(0.3, 0.1, -0.5);            
// Set translation
cubeNode.Transform.Translation = new Vector3(0, 0, 20);            
// Add cube to the scene
scene.RootNode.ChildNodes.Add(cubeNode);            

// Save 3D scene in the supported file formats
scene.Save("TransformationToNode.fbx");

Custom Transformation Matrix

We can also use Matrix directly:

// For complete examples and data files, please go to https://github.com/aspose-3d/Aspose.3D-for-.NET
// Initialize scene object
Scene scene = new Scene();

// Initialize Node class object
Node cubeNode = new Node("cube");

// Call Common class create mesh using polygon builder method to set mesh instance 
Mesh mesh = Common.CreateMeshUsingPolygonBuilder(); 
           
// Point node to the Mesh geometry
cubeNode.Entity = mesh;
// Set custom translation matrix
cubeNode.Transform.TransformMatrix = new Matrix4(
1, -0.3, 0, 0,
0.4, 1, 0.3, 0,
0, 0, 1, 0,
0, 20, 0, 1
);        
// Add cube to the scene
scene.RootNode.ChildNodes.Add(cubeNode);            
   
// Save 3D scene in the supported file formats
scene.Save("TransformationToNode.fbx");