main.cpp

#include "Canvas.h"
  
void checkerboard(Canvas& canvas)
{
  for(int row = 0; row < canvas.vReso; row++)
    for(int col = 0; col < canvas.hReso; col++)
    {
      canvas.Pixel(row, col) = (col/32 + row/32) % 2 ? White : Black;
    }
}


int main()
{
  try
  {
    Canvas canvas;
    checkerboard(canvas);
    canvas.WritePPM("t.ppm");

    canvas.ReadPPM("grid.ppm");
    canvas.WritePPM("t2.ppm");
  }
  catch(const char* msg)
  {
    cerr << msg << endl;
  }

  return 0;
}

  

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