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35 lines
768 B
35 lines
768 B
#include <string>
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#include <iostream>
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#include <cmath>
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#include <iomanip>
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using namespace std;
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const double eps = 1e-6;
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#define Equal(a, b) ((fabs(a - b) < eps) ? true : false)
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struct P
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{
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double x, y, z; // 坐标
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double dx, dy, dz; // 方向
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bool isend; // 是否为端点
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int type; // 0卡箍 1未确定分支点 2已确定分支点 3连接器
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int ref; // 指向其代表的相应数据类型标号
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bool operator<(P B) const;
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bool operator==(P B) const;
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bool operator!=(P B) const;
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void set(int i, double v);
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const double get(int i);
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void reverse();
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P(double x1, double y1, double z1);
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P();
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P operator-(P B) const;
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P operator+(P B) const;
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P operator*(double p) const;
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P operator/(double p) const;
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void print(string s);
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// 设置方向
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void setDir(const P &dir);
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};
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