#pragma once
#include <string>
#include <vector>
#include <list>
#include <fstream>
using std::string;
using std::fstream;
using std::vector;
//基础图元

enum ElementType
{
	eNull  = -1,
	ePoint = 0,
	eRect  = 1,
	eLine = 2,
	eDfg   = 3
};


class AFX_EXT_CLASS GBaseObj
{
public:
	GBaseObj();
	virtual ~GBaseObj();
	GBaseObj& operator=(const GBaseObj& other);
	void SetName(string strName);
	void SetName(char* strname);
	void SetName(const char* strname);
	void SetLayer(const char* strLayer);
	void SetLayer(string strLayer);
	void SetColor(COLORREF clr);
	string GetName(void);
	string GetLayer(void);
	COLORREF GetColor(void);
	ElementType GetType(void);

	void SetPosition(const char* strname);
	string GetPosition(void);

protected:
	void SetType(ElementType type);
	string m_strName;  //名称
	string m_strLayer; //层位
	COLORREF  m_color;  //颜色
	ElementType m_type; //类型
	string m_strPosition; // 编号
};


//点类
class AFX_EXT_CLASS GPoint3D:public GBaseObj
{
public:
	GPoint3D(void);
	GPoint3D(double x, double y, double z);
	bool operator<(const GPoint3D& other) const;
	bool operator==(const GPoint3D& other) const;
	GPoint3D& operator=(const GPoint3D& other);
	void Write(FILE* fw);
	double Distance2D(const GPoint3D& other) const;
	void Rotate(double xs, double ys, double radian);
	void Rotate(double xs, double ys, double cosa, double sina);
	~GPoint3D(void);
	double x0;
	double y0;
	double z0;
	
};

//矩形类
class AFX_EXT_CLASS GRect8 :public GBaseObj
{
public:
	GRect8(void);
	GRect8(double l, double r, double b, double t);
	bool IsIntersected(const GRect8& other) const;
	void GetCenter(double& x, double& y);
	double Width(void);
	double Height(void);
	void   Create(double x0, double y0, double width, double height);
	double left;
	double right;
	double bottom;
	double top;
};

//曲线类
class AFX_EXT_CLASS GPline :public GBaseObj
{
public:
	GPline(void);
	~GPline(void);

	void operator+=(double t);

	void Clear(void);
	int ReadFile(std::ifstream& ifs); //读取一条线 x,y,z
	void AddPoint(const GPoint3D& pt);
	void SetPoint(int idx, double xx, double yy, double zz = 0);
	void SetPoint(int idx, const GPoint3D& pt);
	void SetPoints(const std::list<GPoint3D>& ptlst); //设置整条曲线
	int GetCount(void) const;//返回点个数
	GRect8 GetRect(void) const;//获取曲线包络矩形框
	////获取当前线与other的交点，存入list<CPoint3D>,cxpIndexs，此算法不严格，交点索引可能与交点不对应
	int GetCrossPoints(const GPline& other, std::list<GPoint3D>& cxpts, std::list<int>& cxpIndexs);
	//获取点所在位置 istart为起始点序号，factor为所处线段比例
	int GetLocation(double x0, double y0, double& factor);
	bool GetCoordinate(double l0, double & x, double& y, double& z, int& locationIndex);
	//获取多边形中心
	void GetGravityCenter(double& x0, double& y0);
	//判断当前线与other是否相交
	bool IsIntersected(const GPline& other) const;
	//判断other是否在当前曲线多边形内部，若是返回1，否返回0， 部分在，部分不在返回2
	int IsInside(const GPline& other) const;
	//判断点是否在多边形内部，是返回1，否返回0 在线上返回2
	int IsInside(double x0, double y0) const;
	//判断点是否在多边形内部，是返回1，否返回0 在线上返回2
	int IsInside(const GRect8& rect) const;
	void FromRect(const GRect8& rect);
	bool IsClosed(double esp); //是否闭合
	//获取两个多边形的相交多边形solution，无相交返回false
	bool GetIntersectedPolygon(const GPline& other, GPline& solution);
	//计算曲线多边形面积
	double Area(void) const;
	double X(int i)const;
	double Y(int i) const;
	double Z(int i) const;
	double L(int i) const;
	void Write(FILE* fw);
	GPoint3D GetPoint(int idx) const;
	double GetLength(void);
	void GetLocation(void); //获取所有桩号
	//获取平均走向(-PI/2,PI/2]
	double GetAverageDirection(void);
	//曲线以(x0,y0)为中心逆时针旋转radian弧度
	void Rotate(double xs, double ys, double radian);
	void Rotate(double xs, double ys, double cosa, double sina);
	void Reverse();
private:
	
	std::vector<GPoint3D> m_points;
	std::vector<double>  m_locations;
};


//x0,y0为中心点，斜率k 生成一条线，长度为len
AFX_EXT_CLASS GPline*  CreateLine(double x0, double y0, double sina, double cosa, double len);

//生成一组测线 xs ,ys起点， xe ye 终点 角度lndirect, len为线1/2长度
AFX_EXT_CLASS int  CreateLines(vector<GPline*>& dstLines, double xs, double ys, double xe, double ye,
	double dx, double dy, double lndirect, double len);