利用Java3D技术结合《计算机图形学》知识，编程实现太阳、地球和月球的运动模拟。主要是按照天体运动的规律和课程设计的要求，实现太阳、地球和月球的运动，主要包括地球的公转和自转以及月球围绕地球的转动。程序的主要功能需求如下：

1、按照尺寸、相对位置和一致的大小比例生成太阳、地球和月球；

2、为太阳、地球和月球添加适当纹理，增加图形的视觉效果；

3、按照地球公转和自转规律建立运动坐标，实现地球的运动；

4、按照月球的自转和绕地球转动的规律，实现地球和月球的关系运动；

5、改变视角角度和各天体的距离，从不同方向观察模拟天体运动的规律。

-Using Java3D technologies, "Computer Graphics" knowledge, programming Sun, Earth and Moon motion simulation. Mainly in accordance with the laws of celestial motion and curriculum requirements, to achieve the sun, Earth and moon movements, including the Earth s revolution and rotation and the moon around the Earth s rotation. The main function of the demand process is as follows:

1, in accordance with the size, location and the same size relative proportion of generating the sun, Earth and Moon　

2, for the sun, Earth and Moon add the appropriate texture, increase the visual effect graphic　

3, in accordance with the laws of Earth s revolution and rotation of the movement to establish the coordinates of the Earth s movement　

4, according to the Moon around the Earth s rotation and the rotation of the law, the relationship between the Earth and the Moon movement　

5, changing the view angle and distance of objects, simulation objects observed from different directions, the law of