exampleArithDSSIterator.cpp

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#include <iostream>
#include "ConfigExamples.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/base/Common.h"
 
#include "DGtal/geometry/curves/ArithDSSIterator.h"
#include "DGtal/geometry/curves/ArithmeticalDSSComputer.h"
 
 
using namespace std;
using namespace DGtal;
 
 
int main()
{
  trace.beginBlock ( "Example exampleArithDSSIterator" );
 
  typedef Z2i::Integer Integer;
  typedef ArithDSSIterator<Integer,8> DSSIterator;
  typedef ArithmeticalDSSComputer<DSSIterator,Integer,8> ArithDSS;
  typedef Z2i::Point Point;
  
  Point A(1,5);
  Integer xMax = 6;
  
  // Define an iterator over the 8-connected DSS of characteristics
  // (2,3,15) and initial point A 
  DSSIterator  it(2,3,-15,A);
  
  // Use this iterator in the ArithmeticalDSS recognition algorithm.
  // The result gives the minimal characteristics of the subsegment of
  // the DSL (2,3,15) between the point A and the point of abscissa
  // equal to xMax. 
  ArithDSS myDSS(it);
  
  while ( (*(myDSS.end()))[0] <=xMax && myDSS.extendFront())
    {}
  
  //Display the result.
  std::cout << myDSS.a() << " " << myDSS.b() << " " << myDSS.mu();
  
  trace.endBlock();
  return 0;
}
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