/// <summary>
/// Set the border of a matrix to a specific value.
/// </summary>
public static void SetBorder <T>(this Matrix <T> matrix, Border2l border, T value)
{
matrix.ApplyCenterBordersAndCorners(border,
m => { },
m => m.Set(value), m => m.Set(value), m => m.Set(value), m => m.Set(value),
m => m.Set(value), m => m.Set(value), m => m.Set(value), m => m.Set(value));
}
/// <summary>
/// Replicate the border pixels of the center region outward.
/// </summary>
public static void ReplicateBorder <T>(this Matrix <T> matrix, Border2l border)
{
matrix.ApplyCenterBordersAndCorners(new Border2l(border.Min, border.Max),
m => { },
m => m.SetByCoord(y => m[m.EX, y], (y, x, vy) => vy),
m => m.SetByCoord(y => m[m.FX - 1, y], (y, x, vy) => vy),
m =>
{
var tm = m.SubMatrixWindow(m.F, m.S.YX, m.D.YX, m.F.YX);
tm.SetByCoord(y => tm[tm.EX, y], (y, x, vy) => vy);
},
m =>
{
var tm = m.SubMatrixWindow(m.F, m.S.YX, m.D.YX, m.F.YX);
tm.SetByCoord(y => tm[tm.FX - 1, y], (y, x, vy) => vy);
},
m => { var v = m[m.EX, m.EY]; m.SetByCoord((x, y) => v); },
m => { var v = m[m.FX - 1, m.EY]; m.SetByCoord((x, y) => v); },
m => { var v = m[m.EX, m.FY - 1]; m.SetByCoord((x, y) => v); },
m => { var v = m[m.FX - 1, m.FY - 1]; m.SetByCoord((x, y) => v); });
}
