百度地图使用，画线，标注，动画标注等。。。。。。。(Baidu maps use, draw lines, annotate, animate annotations, etc.)

运用正反向动力学来坐上楼梯动画，包括骨骼，蒙皮。(The implementation of an OpenGL based C++ program to animate a humanoid walking up stairs and across an incline. Forward kinematics is used to walk up stairs, by setting the root to the torso when lifting the leg and to the f