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Decompilation method for realising a graph using a computer
Decompilation method for realising a graph using a computer
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机译：使用计算机实现图形的反编译方法
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摘要
The invention relates to an incremental decompilation method for drawing graphs by means of a computer linked to a visual display screen. It comprises the following steps: … … - defining and storing in memory a data structure describing any graph at every stage of its creation in the form of a tree structure; … - setting up a correspondence table between the internal tree representation whose roots are syntactical structures described in the data structure, and its external graphical representation on the screen, in which each element of the graph is indexed with respect to areas of the screen resulting from a matrix division into lines and columns; … - proceeding actually to draw the graph by carrying out successive operations of insertion and/or of destruction of elements defined in the data structure, these insertions and/or destructions being done in the desired areas of the screen via successive operations of shifting the elements of the graph situated beyond the areas in which the element to be inserted or destroyed is situated, in such a way that the changes involve only the part to be redrawn. … - displaying the graph as it is constructed and modified, … - updating the internal description and the correspondence table. … …??Application to drawing graphs. …IMAGE…
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