Petroleum geology and geophysical graphic symbol compilation and sharing method

The invention relates to a petroleum geology and geophysical graphic symbol compilation and sharing method. The problem that geological concepts among different software are difficult to express unification and standardization is mainly solved. The method comprises the following steps: (1) analyzing standard specifications of drawing symbols in the petroleum industry, classifying the symbols according to geological elements, comparing the symbols with a symbol diagram actually used in production, and perfecting symbol patterns; establishing symbol directories in a classified manner, wherein each symbol is composed of a diagram and unique parameter information; (2) researching and analyzing all symbol patterns, converting geometrical characteristics of symbols into graphic data information,and defining attribute parameters of each element; (3) vectorizing and drawing a standard symbol according to a symbol drawing rule; (4) outputting an XML (Extensive Markup Language) vector definition file of a symbolic grap