Aggiunta della trasformazione al nodo

Aspose.3D for Python via .NET offre la possibilità di ruotare gli oggetti in 3D spazio. Esistono tre modi per definire la rotazione dell’oggetto nello spazio 3D, angoli di Eulero, Quaternion e Custom Matrix, tutti supportati dalla classe Transform.

TSR (Traduzione/Scaling/Rotazione) sono più comunemente utilizzati nello scenario 3D, abbiamo fornito una classe Transform per accedere a questi in Aspose.3D. Le trasformazioni affini includono:

• Traduzione
• Scalatura
• Rotazione
• Mappatura del taglio
• Spremi la mappatura

L’oggetto della classe Mesh viene utilizzato nel codice. Possiamo Creare un oggetto di classe Mesh come narrato lì.

Ruota da Quaternion

from aspose.threed import FileFormat, Node, Scene
from aspose.threed.utilities import Quaternion, Vector3

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  Initialize scene object
scene = Scene()
#  Initialize Node class object
cubeNode = Node("cube")
#  Call Common class create mesh using polygon builder method to set mesh instance
mesh = Common.CreateMeshUsingPolygonBuilder()
#  Point node to the Mesh geometry
cubeNode.entity = mesh
#  Set rotation
cubeNode.transform.rotation = Quaternion.from_rotation(Vector3(0, 1, 0), Vector3(0.3, 0.5, 0.1))
#  Set translation
cubeNode.transform.translation = Vector3(0, 0, 20)
#  Add cube to the scene
scene.root_node.child_nodes.append(cubeNode)
#  The path to the documents directory.
output = "out"  + "TransformationToNode.fbx"
#  Save 3D scene in the supported file formats
scene.save(output, FileFormat.FBX7500ASCII)

Ruota per angoli di Eulero

from aspose.threed import FileFormat, Node, Scene
from aspose.threed.utilities import Vector3

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  Initialize scene object
scene = Scene()
#  Initialize Node class object
cubeNode = Node("cube")
#  Call Common class create mesh using polygon builder method to set mesh instance
mesh = Common.CreateMeshUsingPolygonBuilder()
#  Point node to the Mesh geometry
cubeNode.entity = mesh
#  Euler angles
cubeNode.transform.euler_angles = Vector3(0.3, 0.1, -0.5)
#  Set translation
cubeNode.transform.translation = Vector3(0, 0, 20)
#  Add cube to the scene
scene.root_node.child_nodes.append(cubeNode)
#  The path to the documents directory.
output = "out"  + "TransformationToNode.fbx"
#  Save 3D scene in the supported file formats
scene.save(output, FileFormat.FBX7500ASCII)

Matrice di trasformazione personalizzata

Possiamo anche usare Matrix direttamente:

from aspose.threed import FileFormat, Node, Scene
from aspose.threed.utilities import Matrix4

#  For complete examples and data files, please go to https:# github.com/aspose-3d/Aspose.3D-for-.NET
#  Initialize scene object
scene = Scene()
#  Initialize Node class object
cubeNode = Node("cube")
#  Call Common class create mesh using polygon builder method to set mesh instance
mesh = Common.CreateMeshUsingPolygonBuilder()
#  Point node to the Mesh geometry
cubeNode.entity = mesh
#  Set custom translation matrix
cubeNode.transform.transform_matrix = 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.root_node.child_nodes.append(cubeNode)
#  The path to the documents directory.
output = "out"  + "TransformationToNode.fbx"
#  Save 3D scene in the supported file formats
scene.save(output, FileFormat.FBX7500ASCII)