Bresenham Line

Synopsis

Get the points on a Bresenham line between two points.

Results

Output:

[0, 0]
[1, 1]
[2, 2]
[3, 3]
[0, 0]
[1, 1]
[2, 2]
[3, 3]
[4, 4]
[5, 5]
[6, 6]

Code

C++

#include "itkBresenhamLine.h"
#include "itkVector.h"
#include "itkOffset.h"
#include "itkPoint.h"

#include <iostream>

static void
Vector();
static void
Line();

int
main(int itkNotUsed(argc), char * itkNotUsed(argv)[])
{
  Vector();
  Line();

  return EXIT_SUCCESS;
}

void
Vector()
{

  itk::BresenhamLine<2> line;

  itk::Vector<float, 2> v;
  v[0] = 1;
  v[1] = 1;
  std::vector<itk::Offset<2>> offsets = line.BuildLine(v, 4);

  for (auto offset : offsets)
  {
    std::cout << offset << std::endl;
  }
}

void
Line()
{

  itk::BresenhamLine<2> line;
  itk::Index<2>         pixel0;
  pixel0[0] = 0;
  pixel0[1] = 0;

  itk::Index<2> pixel1;
  pixel1[0] = 5;
  pixel1[1] = 5;

  std::vector<itk::Index<2>> pixels = line.BuildLine(pixel0, pixel1);

  for (auto pixel : pixels)
  {
    std::cout << pixel << std::endl;
  }
}

Classes demonstrated

template<unsigned int VDimension>
class BresenhamLine

See itk::BresenhamLine for additional documentation.