Transformation zum Knoten hinzufügen

Aspose.3D for Java API bietet Unterstützung für das Drehen von Objekten in 3D Raum. Es gibt drei Möglichkeiten, die Rotation des Objekts im Raum 3D zu definieren, Euler winkel, Quaternion und Custom Matrix. Alle werden von der Transform-Klasse unterstützt.

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:

• Übersetzung
• Skalierung
• Rotation
• Scher kartierung
• Squeeze-Mapping

Das Mesh-Klassen objekt wird im Code verwendet. Wir können Erstellen Sie ein Mesh-Klassen objekt, wie es dort erzählt wird.

Drehen Sie durch Quaternion

// 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.setEntity(mesh);
// Set rotation
cubeNode.getTransform().setRotation(Quaternion.fromRotation(new Vector3(0, 1, 0), new Vector3(0.3, 0.5, 0.1)));
// Set translation
cubeNode.getTransform().setTranslation(new Vector3(0, 0, 20));
// Add cube to the scene
scene.getRootNode().getChildNodes().add(cubeNode);
// The path to the documents directory.
String MyDir = RunExamples.getDataDir();
MyDir = MyDir + RunExamples.getOutputFilePath("TransformationToNode.fbx");
// Save 3D scene in the supported file formats
scene.save(MyDir, FileFormat.FBX7500ASCII);

Drehen Sie durch Euler Winkel

// 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.setEntity(mesh);
// Euler angles
cubeNode.getTransform().setEulerAngles(new Vector3(0.3, 0.1, -0.5));
// Set translation
cubeNode.getTransform().setTranslation(new Vector3(0, 0, 20));
// Add cube to the scene
scene.getRootNode().getChildNodes().add(cubeNode);
// The path to the documents directory.
String MyDir = RunExamples.getDataDir();
MyDir = MyDir + RunExamples.getOutputFilePath("TransformationToNode.fbx");
// Save 3D scene in the supported file formats
scene.save(MyDir, FileFormat.FBX7500ASCII);

Individuelle Transformation matrix

Wir können Matrix auch direkt verwenden:

// 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.setEntity(mesh);
// Set custom translation matrix
cubeNode.getTransform().setTransformMatrix(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.getRootNode().addChildNode(cubeNode);
// The path to the documents directory.
String MyDir = RunExamples.getDataDir();
MyDir = MyDir + RunExamples.getOutputFilePath("TransformationToNode.fbx");
// Save 3D scene in the supported file formats
scene.save(MyDir, FileFormat.FBX7500ASCII);