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49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
#pragma once
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#include "VoronoiMap/InterfaceElements.h"
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#include <vector>
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/*@class: CPointSubset
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* @desc: 用于对点集按距离抽稀，
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使用说明：
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1. 声明变量 vector<CPointXYZ> vecpts;
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std::vector<int> idxReserved;
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CPointSubset subset;
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2.vecpts插入数据
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3. 调用subset.CreateSubsetWithMinDist( 150.0, idxReserved);
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使用方法：
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* @date: 2023.5.24
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*/
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class CPointSubset
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{
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public:
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CPointSubset(void);
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~CPointSubset(void);
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//从文件中读取散点
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int ReadPoints(CString strXyz);
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//从内存中读取散点
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int ReadPoints(std::vector<CPointXYZ>& vecXyz);
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//通过设置最小距离抽稀数据， 生成的子集点之间距离大于fMinDist ,idxReserved = 保留的点序号
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//idxRemoved = 移除的点序号
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int CreateSubsetWithMinDist(float fMinDist, std::vector<int>& idxReserved,
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std::vector<int>* idxRemoved = nullptr);
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//由点序号写出点集到文件
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int WritePoints(CString fname,std::vector<int>& idxReserved);
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// 抽稀后的 xyz 列表
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const std::vector<CPointXYZ> &points() { return m_points; }
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protected:
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void GetExtremeValues(void); //获取散点极值
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std::vector<CPointXYZ> m_points;
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double m_xmin; //x最小
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double m_xmax; //x最大
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double m_ymin; //y最小
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double m_ymax; //y最大
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};
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