Description: VC MO shortest path algorithm// calculate the geometric line length double CalcLength ()// line through the data line id be BOOL GetLineData (int id)// a distance to the nearest point of a segment, return to the line of id int GetNearestLineData (double x, double y)// 2:00 judgment whether coincidence BOOL IsPtCoincide (NetPo int ptFirst, NetPoint ptSecond)// most neighboring points
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