Question

我正在开发一种太阳系。行星绕着太阳运动，地球上不同的东西（例如树木和花朵是通过交互式网格导入的）围绕着行星的中心。

我尝试使用.add（calibration）来移动中心，其中校准是一个变量，该变量保存假定的错误偏移值

//shape is javafx Shape3D[] and it is set to interactive mesh ModelImporter. 
Shape3D[] stuffOnEarth = Shape3dConstructor.getShape3D(name);//works fine. adds a 3d object to the scene. You can imagine it as an array of Sphere
for (Shape3D part : stuffOnEarth) {
   var movement = new PathTransition(new Duration(DAY), new Circle(earth.RADIUS+distanceFromSurface), part);
   movement.play();         
}
StackPane stuffPane = new StackPane();
stuffPane.translateXProperty().bind(Earth.translateXProperty());  stuffPane.translateYProperty().bind(Earth.translateYProperty().add(calibration));
stuffPane.getChildren().addAll(stuffOnEarth);

    // Earth is a javafx sphere that rotates around the Sun 
    Sphere earth = new Sphere(RADIUS);
    var rotate = new PathTransition(new Duration(YEAR), new Circle(distanceFromTheSun), earth);
    rotate.play();

但是这些东西并没有绕地球中心旋转，相反，它绕着我不知道的方向移动。

Answer 1

要将3d对象绑定到地球表面，我执行了以下操作：我创建了一个球体和一个pathtransition，其路径用地球半径的圆表示；然后将3d对象绑定到中心球体。这就是解决方案

我无法将3d对象绑定到另一个对象的中心

1 个答案: