| 摘要 |
PURPOSE: A system for minimizing the amount of numerical curve data by curve fitting according to standard coordinate of an electronic signal mark and storing data in a GIS(Geographical Information System) is provided to store and transmit data conveniently by minimizing the amount of data with storing coefficient after curve fitting. CONSTITUTION: A coordinate of an electronic signal mark and the origin are set(S10), and the numerical curve coordinate is decided to the setting value of the electronic signal mark(S20). The partial range is confirmed according to the shape of the numerical curve, the discontinuous range and the equality of attribute data(S30). The degree of the polynomial expression and the numerical formula are decided according to the numerical curve for curve fitting(S40). The polynomial expression and the coefficient of the formula are calculated corresponding to numerical simulation(S50), and the calculated coefficient is used for storing and using data(S60).
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