Modeling of dynamic text notes for three dimensional slab-yard based on collision detection
基于碰撞检测的三维板坯库动态注记模型

A dynamic three-dimensional model of text noting based on collision detection was presented against the background of slab-yard. There are many factors that affect text noting in three-dimensional scene, such as the distance between the text notes and the observer, whether the text notes occupy the same region of space with other models or not, whether the text notes were obscured by other models or not and so on. These factors were well balanced by using the model that presented in this paper. And collision detection technology was used to solve the problem that a text note may occupy the same space with other models, then three different ways of bounding box collision detection technology were tested to verify intersect rates. The results show that the model could be well used in large three-dimensional scene.