排除重复点

 
#pragma once
#include "c:\objectarx 2012\inc\gepnt3d.h"    //--->根据你的目录来定
class CPoint3d : public AcGePoint3d
{
private:
 double fuzz;
public:
 CPoint3d(void):fuzz(0.0){}
 ~CPoint3d(void){}
 void SetFuzz(double tol)
 {
  fuzz = tol;
 }
 void copy(c**t AcGePoint3d & pt)
 {
  this->x=pt.x;
  this->y=pt.y;
  this->z=pt.z;
 }
 bool isEqualTo(double x1,double x2) c**t
 {
        double delta = x1 - x2;
  return (delta = (-fuzz));
 }
 bool operator x,pt.x))
   if (isEqualTo(this->y,pt.y))
    return (this->z y x 
#include 
using namespace std;
以下为测试：
在你的函数中这样添加：[code] 
  //过滤选择CAD的点(PointArray)对象
  resbuf filter;
  filter.restype=0;
  filter.resval.rstring=_T("POINT");
  filter.rbnext = NULL; 
  ads_name sel;
  int ret=acedSSGet(NULL,NULL,NULL,&filter,sel);
  if( ret!=RTNORM)
  {
   acedSSFree(sel);
   return;
  }
  long len;
  ads_name ent;
  AcDbObjectId ObjId;
  AcDbPoint *pEnt;
  acedSSLength(sel,&len);
  AcGePoint3dArray ptset;
  for (long i = 0;iposition());
   pEnt->close();
  }
  acedSSFree(sel);
  len = ptset.length();
  //这样得到了AcGePoint3dArray,然后运用set,排除重复点：
  set pts;
  CPoint3d tempPt;
  tempPt.SetFuzz(1e-4);
  for (int i = 0; i ::iterator pItr;
  int i = 0;
  for (pItr = pts.begin();pItr!=pts.end();pItr++)
  {
   acutPrintf(_T("\nPoint [%d] is : %f,%f,%f"),i,(*pItr).x,(*pItr).y,(*pItr).z);
   Pt3d.x=(*pItr).x;
   Pt3d.y=(*pItr).y;
   Pt3d.z=(*pItr).z;
   ptset[ i ] = Pt3d;
   i++;
  }