io/digitalSetFromPointList.cpp

Example of point list import.

See also

Image and digital object import/export

Visualisation of 3d imported point list

 
#include "DGtal/base/Common.h"
#include "DGtal/io/readers/PointListReader.h"
#include "DGtal/io/viewers/PolyscopeViewer.h"
#include "DGtal/io/Color.h"
 
#include "DGtal/helpers/StdDefs.h"
#include "ConfigExamples.h"
 
 
using namespace std;
using namespace DGtal;
using namespace Z3i;
 
 
int main()
{
  std::string inputFilename = examplesPath + "samples/pointList3d.pl";
  PolyscopeViewer<> viewer;
  // Importing the 3d set of points  contained with the default index (0, 1, 2);
  vector<Z3i::Point> vectPoints=  PointListReader<Z3i::Point>::getPointsFromFile(inputFilename);
  for(unsigned int i=0; i<vectPoints.size();i++){
    viewer << vectPoints.at(i);
  }
 
  // Importing the 3d set of points with another index definition  (0, 2, 1);
  vector<unsigned int> vPos;
  vPos.push_back(0);
  vPos.push_back(2);
  vPos.push_back(1);
  vectPoints=  PointListReader<Z3i::Point>::getPointsFromFile(inputFilename, vPos);
  viewer<< Color(255,0,0);
  for(unsigned int i=0; i<vectPoints.size();i++){
    viewer << vectPoints.at(i);
  }
 
  viewer.show();
  return 0;
}