我有一个用 Java 3D 绘制的圆锥体,代码如下:
Cone cone = new Cone(2f, 3f);
Transform3D t3d = new Transform3D();
TransformGroup coneTransform = new TransformGroup(t3d);
coneTransform.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
t3d.setTranslation(new Vector3f(0f,0f,0f);
coneTransform.setTransform(t3d);
coneTransform.addChild(cone);
this.addChild(coneTransform);
假设我的圆锥位于点 (1,1,1),并且我希望圆锥的尖端指向一条穿过 (0,0,0) 和 (1,1,1) 的假想线......如何我可以这样做吗?
这是我一直在尝试的示例:
Transform3D t3d = new Transform3D();
Vector3f direction = new Vector3f(1,2,1);
final double angleX = direction.angle(new Vector3f(1,0,0));
final double angleY = direction.angle(new Vector3f(0,1,0));
final double angleZ = direction.angle(new Vector3f(0,0,1));
t3d.rotX(angleX);
t3d.rotY(angleY);
t3d.rotZ(angleZ);
t3d.setTranslation(direction);
coneTransform.setTransform(t3d);
提前感谢所有帮助!