The "crown diameter-crown height" correlation equations and the formulas of three-dimensional vegetation quantity of tree crown are established.
建立常见绿化树种“冠径—冠高”相关方程和树冠绿化三维量计算公式。
This paper introduces the theory foundation and the display algorithm of the fractal graphics, which has been applied into the three dimensional display of the natural tree.
介绍了分数维图形的理论基础及其显示算法，并应用到自然树木的三维显示中。
A heuristic method for packing freight into a container by using tri tree structure to express the packing space decomposition for three dimensional rectangular packing is proposed.
针对集装箱内货物装载布局问题，提出一种利用三叉树结构表达三维矩形物体布局状态空间分解的方法。
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