private DataGridView InitSrcMatrixView(Matrix2d m, DataGridView view)
{
view.ColumnCount = m.XSize;
view.RowCount = m.YSize;
view.RowHeadersVisible = view.ColumnHeadersVisible = false;
view.Dock = DockStyle.Fill;
view.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
view.AllowUserToResizeColumns = view.AllowUserToResizeRows = false;
for (int i = 0; i < m.XSize; i++)
{
for (int j = 0; j < m.YSize; j++)
{
view.Rows[i].Cells[j].Value = m[i, j].ToString();
view.Rows[i].Cells[j].ReadOnly = true;
if (j > i)
{
view.Rows[i].Cells[j].ReadOnly = false;
view.Rows[i].Cells[j].Style.BackColor = Color.LightGreen;
}
}
}
splitLeftPanel.Panel2.Controls.Add(view);
pbLeft.Paint += new PaintEventHandler(pbLeft_Paint);
UpdateGraphInfo();
pbLeft.Refresh();
saveToolStripMenuItem.Enabled = true;
makeMinSpannedTreeToolStripMenuItem.Enabled = true;
return view;
}
/// <summary>
/// copy ctor
/// </summary>
/// <param name="m">Matrix2d for copy</param>
public Matrix2d(Matrix2d m)
: this(m.XSize, m.YSize)
{
for (int i = 0; i < YSize; ++i)
{
for (int j = 0; j < XSize; ++j)
{
elems[j, i] = m[j, i];
}
}
}
private DataGridView InitSpannedTreeView(Matrix2d m, DataGridView view)
{
view.ColumnCount = m.XSize;
view.RowCount = m.YSize;
view.RowHeadersVisible = view.ColumnHeadersVisible = false;
view.Dock = DockStyle.Fill;
view.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
view.ReadOnly = true;
view.AllowUserToResizeColumns = view.AllowUserToResizeRows = false;
for (int i = 0; i < m.XSize; i++)
{
for (int j = 0; j < m.YSize; j++)
{
view.Rows[i].Cells[j].Value = m[i, j].ToString();
}
}
splitRightPanel.Panel2.Controls.Add(view);
pbRight.Paint += new PaintEventHandler(pbRight_Paint);
pbRight.Refresh();
return view;
}
private void addRowToolStripMenuItem_Click(object sender, EventArgs e)
{
xyView.Rows.Add(1);
resView.Rows.Add(1);
int x = xyView.ColumnCount;
int y = xyView.RowCount;
srcModel = new Matrix2d(x, y, 0);
for (int i = 0; i < y; i++)
{
for (int j = 0; j < x; j++)
{
try
{
srcModel[j, i] = double.Parse(xyView.Rows[i].Cells[j].Value.ToString());
}
catch (Exception)
{
xyView.Rows[i].Cells[j].Value = 0;
srcModel[j, i] = 0;
}
}
}
}
/// <summary>
/// Create a transpose matrix
/// http://en.wikipedia.org/wiki/Transpose
/// </summary>
/// <returns>Tranpose matrix</returns>
public Matrix2d Tranpose()
{
Matrix2d t = new Matrix2d(this.YSize, this.XSize);
for (int i = 0; i < YSize; ++i)
{
for (int j = 0; j < XSize; ++j)
{
t[i,j] = this[j,i];
}
}
return t;
}
/// <summary>
/// Created a Cofactor
/// http://en.wikipedia.org/wiki/Cofactor_(linear_algebra)
/// </summary>
/// <param name="x">x index</param>
/// <param name="y">y index</param>
/// <returns>Matrix of cofactor</returns>
public Matrix2d Cofactor(int x, int y)
{
Matrix2d C = new Matrix2d(this.XSize -1 , this.YSize-1 );
int ci = 0, cj = 0;
for (int i = 0; i < YSize; i++)
{
cj = 0;
for (int j = 0; j < XSize; j++)
{
if (j != x && i != y)
{
C[cj, ci] = this[j, i];
cj++;
}
}
if (i != y) ci++;
}
return C;
}
public static Matrix2d operator -(Matrix2d A, Matrix2d B)
{
if (A.XSize != B.XSize || A.YSize != B.YSize)
{
throw A.sizeError;
}
else
{
Matrix2d C = new Matrix2d(A.XSize, A.YSize);
for (int i = 0; i < C.YSize; i++)
{
for (int j = 0; j < C.XSize; j++)
{
C[j, i] = A[j, i] - B[j, i];
}
}
return C;
}
}
public static Matrix2d operator *(double scalar, Matrix2d A)
{
Matrix2d C = new Matrix2d(A.XSize, A.YSize);
for (int i = 0; i < C.YSize; i++)
{
for (int j = 0; j < C.XSize; j++)
{
C[j, i] = (A[j,i]*scalar);
}
}
return C;
}
public static Matrix2d operator *(Matrix2d B, Matrix2d A)
{
if (A.YSize != B.XSize)
{
throw new System.Exception("impossible to multiply matrices: A[m1*n1], B[m2*n2] where n1 must be equal m2 !!!\n");
}
else
{
Matrix2d C = new Matrix2d(A.XSize, B.YSize);
for (int i = 0; i < C.XSize; i++)
{
for (int j = 0; j < C.YSize; j++)
{
double elem = 0;
for (int k = 0; k < A.YSize; k++)
{
elem += (A[i, k] * B[k, j]);
}
C[i, j] = elem;
}
}
return C;
}
}
public SquareMatrix2d(Matrix2d m)
: base(m)
{
}
private void Calc()
{
calcModel = new Matrix2d(srcModel.XSize, srcModel.YSize, 0);
for (int i = 0; i < calcModel.XSize; i++)
{
double max = srcModel.MaxValueAtColumn(i);
for (int j = 0; j < calcModel.YSize; j++)
{
calcModel[i,j] = max - srcModel[i,j];
}
}
for (int i = 0; i < srcModel.YSize; i++)
{
double s = 0;
for (int j = 0; j < srcModel.XSize; j++)
{
double a = srcModel[j, i];
double b = Convert.ToDouble(pView[j, 0].Value);
s += a*b;
}
resView[0, i].Value = s;
}
for (int i = 0; i < resView.RowCount; i++)
{
resView[1, i].Value = calcModel.MaxValueAtRow(i);
}
for (int i = 0; i < resView.RowCount; i++)
{
double s = 0;
for (int j = 0; j < calcModel.XSize; j++)
{
s+=(calcModel[j,i]*calcModel[j,i]);
}
resView[2, i].Value = Math.Sqrt(s).ToString();
}
}
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
OpenFileDialog of = new OpenFileDialog();
if (of.ShowDialog() == DialogResult.OK)
{
StreamReader f = new StreamReader(of.FileName);
int x = Convert.ToInt32(f.ReadLine());
int y = Convert.ToInt32(f.ReadLine());
xyView.RowCount = y;
xyView.ColumnCount = x;
pView.ColumnCount = x;
pView.RowCount = 1;
resView.RowCount = y;
srcModel = new Matrix2d(x, y, 0);
for (int i = 0; i < y; i++)
{
string[] s = f.ReadLine().Split();
for (int j = 0; j < x; j++)
{
xyView.Rows[i].Cells[j].Value = double.Parse(s[j]);
srcModel[j,i] = double.Parse(s[j]);
}
}
string[] ss = f.ReadLine().Split();
for (int j = 0; j < x; j++)
{
pView.Rows[0].Cells[j].Value = double.Parse(ss[j]);
}
xyView.CellValueChanged += new DataGridViewCellEventHandler(xyView_CellValueChanged);
}
}