看起来Transform类中JavaFX包含 3 个坐标（x、y 和 z）。
如果我旋转出平面会发生什么？它会做透视吗？
更新
实际上，即使旋转出平面 1 度，物体也会消失。为什么？
public class TransformTry extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) {
primaryStage.setTitle("Drawing Operations Test");
Group root = new Group();
Canvas canvas = new Canvas(300, 250);
//canvas.getTransforms().add(new Rotate(1, new Point3D(0, 1, 0))); // square disappears
canvas.getTransforms().add(new Rotate(1, new Point3D(0, 0, 1))); // rotates correctly
GraphicsContext gc = canvas.getGraphicsContext2D();
gc.strokeRect(-50, -50, 100, 100);
root.getChildren().add(canvas);
primaryStage.setScene(new Scene(root));
primaryStage.show();
}
}
更新 2
我找到了一种使用透视相机的方法，但它的工作原理很奇怪：它总是从窗口中心上方看起来，因此窗口调整大小时平面外对象会发生变化：
public class ShapeTry01 extends Application {
@Override
public void start(Stage stage) throws Exception {
Shape shape = new Rectangle(100,100,50,50);
shape.setStroke(Color.RED);
shape.setFill(null);
Group group = new Group();
group.getChildren().add(shape);
//group.getTransforms().add(new Rotate(10, new Point3D(0, 0, 1)));
group.getTransforms().add(new Rotate(10, new Point3D(0, 1, 0)));
PerspectiveCamera camera = new PerspectiveCamera();
camera.setFieldOfView(45);
Scene scene = new Scene(group);
scene.setCamera( camera );
stage.setTitle("ShapeTry01");
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}