To solve the difficulty in modeling a chemical system a new node granularity transformation method based on object directed acyclic graph was proposed.
针对化工系统模型难以确定的问题，提出了基于对象的有向无环图节点粒度的转换方法。
By using the graph theory and the method of data transformation, a series of connectivity matrixes and loop matrixes are derived from the basic relation matrix-the matrix KL.
应用图论理论和数据转换方法，通过基本关系矩阵———KL矩阵派生一系列的衔接矩阵和回路矩阵。
Another characteristic of graph transformation is that pattern matching method can be used in the source models.
图形转换方法的另一个特性是能够在源模型元素中使用模式匹配的能力。
In respect that the graph model itself is graph or can be transformed as graph by some method, the graph transformation is highly fit for graph model transforming.
因为图形化的模型本身就是图形或者以某种方式表示为图形，因此图形转换方法非常适合用于图形化模型的转换。
The paper adopts graph method to study 3d entity graphic conversion, and the parameter formulas of the graphic transformation matrix of the several special displays are clearly obtained.
采用图解法探讨三维实体的图形变换，明确给出了几种特殊显示的图形变换矩阵的参数表达式。
The paper adopts graph method to study 3d entity graphic conversion, and the parameter formulas of the graphic transformation matrix of the several special displays are clearly obtained.
采用图解法探讨三维实体的图形变换，明确给出了几种特殊显示的图形变换矩阵的参数表达式。
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