三维场景中的三维凸壳算法及实现。可用鼠标转动场景，可用鼠标拖动凸壳的各顶点。-Three-dimensional scene in three-dimensional convex hull algorithm and implementation.

在Delphi中实现三维图形绘制，并实现鼠标控制旋转。-Three-dimensional graphics rendering in Delphi, and to achieve the mouse to control the rotation.

在Delphi环境下，基于GL_Scene控件编写而成的3D四轴飞行器模型，3D自由视图，支持3D旋转和鼠标缩放功能。-In the Delphi environment, the 3D four axis vehicle model and GL_Scene control based on the preparation, 3D free view, support 3D rotation and zoom function of mouse.