java3d圆锥曲线

分别计算圆锥的体积与面积和圆柱的体积与面积-Calculation tapered cylindrical volume and area

很简单点的java 3d编程出一个圆锥。网上很多都不能直接运行，存在错误，这是我在此基础上修改的-A very simple point Java 3D programming a cone. Many online are not directly run, there are errors, this is the corrected one。