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//////////////////////////////////////////////////////////////////////////////
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//文件: SegY文件操作类
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//主要功能:
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// 实现坐标与线道号之间的相互转换
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//程序编写: 2011-4-1
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//
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//
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/////////////////////////////////////////////////////////////////////////////
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#pragma once
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#include "RowCol.h"
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#include "TInterval.h"
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namespace NCube
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{
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//实现坐标与线道号之间的相互转换
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class AFX_EXT_CLASS CCoorTransform
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{
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public:
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CCoorTransform(void);
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~CCoorTransform(void);
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//带有x、y的为坐标，带有m、n的为线道号
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bool Create( double x1, double y1, double m1, double n1,
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double ddx, double ddy, double angle );
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//根据对应二点生成平面(二点校位)
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bool Create(
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double x1, double y1, double m1, double n1,
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double x2, double y2, double m2, double n2 );
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//根据对应三点生成平面(三点校位)
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bool Create(
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double x1, double y1, double m1, double n1,
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double x2, double y2, double m2, double n2,
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double x3, double y3, double m3, double n3 );
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////////////////////////////////////////////////////////////////
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//三点 max inline
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// 2---------------------------
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// | |
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// | | max
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// | |crossline
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// | |
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// | |
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// 1---------------------------3
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/////////////////////////////////////////////////////////////////
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//!< 设置变换需要的三个对应坐标点. 注意第三点线号与第一点线号相同
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//!< c0、c1、c2为实际坐标点，对应的线道号坐标为rc0、rc1、rc2(rc0.row,col2)
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bool set3Points(
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const CPoint2D& c0, const CPoint2D& c1, const CPoint2D& c2,
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const CRowCol& rc0, const CRowCol& rc1, int col2 );
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//!< 线道号转换为坐标
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void toXY(const CRowCol& rc, CPoint2D& pt);
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void toXY(int row, int col, double&x, double& y);
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void toXY(double row, double col, double&x, double& y);
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CPoint2D toXY(const CRowCol& rc);
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CPoint2D toXY(int row, int col);
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CPoint2D toXY(double row, double col);
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//!< 坐标转换为线道号
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void toRC(const CPoint2D& pt, CRowCol& rc);
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void toRC(double x, double y, int& row, int& col);
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CRowCol toRC(const CPoint2D& pt);
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CRowCol toRC(double x, double y);
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//!< 将线道号转换为坐标
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CRowCol TransformBack(const CPoint2D& coord,
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const TIntervalStep<int>* inlrg=0,
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const TIntervalStep<int>* crlrg=0 ) const;
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/*!< Transforms Coord to RowCol. If the ranges are
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given, they are only used for snapping: the actual range is not used */
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CPoint2D TransformBackNoSnap(const CPoint2D& coord) const;
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/*!< transforms back, but does not snap. The row is stored in the x-component, and the
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col is stored in the y-component. */
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//输出测网
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void WriteLine(LPCTSTR lpszFileName, TIntervalStep<int> row, TIntervalStep<int> col);
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void Write(CFile& fw);
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int Read(CFile& fr);
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void Serialize(CArchive& ar, const short &ver);
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protected:
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//!<Sets up the transform using three points. note that the third point is
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//assumed to be on the same row as the first point.
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struct RCTransform
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{
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RCTransform() { a = b = c = 0; }
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inline double det( const RCTransform& bct ) const
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{
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return b * bct.c - bct.b * c;
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}
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inline bool valid( const RCTransform& bct ) const
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{
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double d = det( bct );
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return !mIsZero(d, 1e-10);
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}
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double a, b, c;
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};
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public:
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void setTransforms( const RCTransform& x,const RCTransform& y ) { xtr = x; ytr = y; }
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const RCTransform& getTransform( bool x ) const { return x ? xtr : ytr; }
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protected:
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RCTransform xtr;
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RCTransform ytr;
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public:
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//形成变换的对应三点
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CPoint2D m_pt[3];
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CRowCol m_rc[3];
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};
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}//namespace
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