private static void randomize_boxes(BoxLabel[] b, int n)
{
int i;
for (i = 0; i < n; ++i)
{
BoxLabel swap = b[i];
int index = Utils.Rand.Next() % n;
b[i] = b[index];
b[index] = swap;
}
}
public static BoxLabel[] read_boxes(string filename, ref int n)
{
if (!File.Exists(filename))
{
Utils.file_error(filename);
}
float x, y, h, w;
int id;
int count = 0;
var lines = File.ReadAllLines(filename);
BoxLabel[] boxes = new BoxLabel[lines.Length];
for (var i = 0; i < lines.Length; ++i)
{
var numbers = lines[i].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (numbers.Length != 5)
{
continue;
}
id = int.Parse(numbers[0]);
x = float.Parse(numbers[1]);
y = float.Parse(numbers[2]);
w = float.Parse(numbers[3]);
h = float.Parse(numbers[4]);
boxes[i] = new BoxLabel();
boxes[i].Id = id;
boxes[i].X = x;
boxes[i].Y = y;
boxes[i].H = h;
boxes[i].W = w;
boxes[i].Left = x - w / 2;
boxes[i].Right = x + w / 2;
boxes[i].Top = y - h / 2;
boxes[i].Bottom = y + h / 2;
++count;
}
n = count;
return(boxes);
}