public void FillDataGrid(AbstractSimplexTable table, DataGridView dgv)
{
// simplexTable
if (comboBox_ChooseMethod.SelectedIndex == 0)
{
// головні змінні + для функції
dgv.RowCount = table.NumberOfRows + 1;
// mainVariables + basis variables + basis + freeValues + EstimateRelations
dgv.ColumnCount = table.NumberOfCollumns + 3;
}
else
{
//doubleSimplexTable
// головні змінні + для функції + EstimateRelations
dgv.RowCount = table.NumberOfRows + 2;
// mainVariables + basis variables + basis + freeValues
dgv.ColumnCount = table.NumberOfCollumns + 2;
}
foreach (DataGridViewColumn column in dgv.Columns)
{
column.SortMode = DataGridViewColumnSortMode.NotSortable;
}
dgv.Rows[table.MainRowForNextStep].Cells[table.MainCollumnForNextStep + 2].Style.BackColor = Color.AntiqueWhite;
if (table.MainRow != -1)
{
dgv.Rows[table.MainRow].Cells[table.MainCollumn + 2].Style.BackColor = Color.White;
}
// basis
dgv.Columns[0].HeaderText = "Базис";
for (int i = 0; i < table.NumberOfRows; i++)
{
dgv.Rows[i].Cells[0].Value = "X" + (table.Basis[i] + 1);
}
// freeValues
dgv.Columns[1].HeaderText = "Вільні члени";
for (int i = 0; i < table.NumberOfRows; i++)
{
dgv.Rows[i].Cells[1].Value = String.Format("{0:0.00}", table.FreeValues[i]);
}
// variables
for (int i = 0; i < table.NumberOfCollumns; i++)
{
dgv.Columns[i + 2].HeaderText = "X" + (i + 1);
for (int j = 0; j < table.NumberOfRows; j++)
{
dgv.Rows[j].Cells[i + 2].Value = String.Format("{0:0.00}", table.Variables[j][i]);
}
}
// variables
for (int i = 0; i < table.NumberOfCollumns; i++)
{
dgv.Columns[i + 2].HeaderText = "X" + (i + 1);
for (int j = 0; j < table.NumberOfRows; j++)
{
dgv.Rows[j].Cells[i + 2].Value = String.Format("{0:0.00}", table.Variables[j][i]);
}
}
// function
dgv.Rows[table.NumberOfRows].Cells[0].Value = "F";
dgv.Rows[table.NumberOfRows].Cells[1].Value = table.FunctionResult;
for (int i = 0; i < table.NumberOfCollumns; i++)
{
dgv.Rows[table.NumberOfRows].Cells[i + 2].Value = String.Format("{0:0.00}", table.Function[i]);
}
// simplexTable
if (comboBox_ChooseMethod.SelectedIndex == 0)
{
// Estimate relations
for (int i = 0; i < table.NumberOfRows; i++)
{
if (table.EstimateRelations[i] < 0)
{
dgv.Rows[i].Cells[dgv.ColumnCount - 1].Value = 1.0f / 0;
}
else
{
dgv.Rows[i].Cells[dgv.ColumnCount - 1].Value = String.Format("{0:0.00}", table.EstimateRelations[i]);
}
}
}
// double simplexTable
else
{
// Estimate relations
for (int i = 2; i < table.EstimateRelations.Length + 2; i++)
{
if (Double.IsNaN(table.EstimateRelations[i - 2]))
{
dgv.Rows[dgv.RowCount - 1].Cells[i].Value = 1.0f / 0;
}
else
{
dgv.Rows[dgv.RowCount - 1].Cells[i].Value = String.Format("{0:0.00}", table.EstimateRelations[i - 2]);
}
}
}
}
public Homory(SimplexTable table)
{
Table = table;
}
private void button_Calculate_Click(object sender, EventArgs e)
{
try
{
ClearDataGrid(dataGridView_Result);
int numberOfRows = Convert.ToInt32(numericUpDown_InputData_Rows.Value);
int numberOfCollumns = Convert.ToInt32(numericUpDown_InputData_Collumns.Value);
double[][] mainArray = new double[numberOfRows][];
for (int i = 0; i < numberOfRows; i++)
{
mainArray[i] = new double[numberOfCollumns];
}
for (int i = 0; i < numberOfRows; i++)
{
for (int j = 0; j < numberOfCollumns; j++)
{
mainArray[i][j] = Convert.ToDouble(dataGridView_InputData_Methods.Rows[i].Cells[j].Value);
}
}
double[] function = new double[numberOfCollumns];
for (int i = 0; i < numberOfCollumns; i++)
{
function[i] = Convert.ToDouble(dataGridView_InputData_Function.Rows[0].Cells[i].Value);
}
double[] freeValues = new double[numberOfRows];
for (int i = 0; i < numberOfRows; i++)
{
freeValues[i] = Convert.ToDouble(dataGridView_InputData_FreeValues.Rows[i].Cells[0].Value);
}
Compare[] signs = new Compare[numberOfRows];
for (int i = 0; i < numberOfRows; i++)
{
signs[i] = Convert.ToString(dataGridView_InputData_Signs.Rows[i].Cells[0].Value) == "="
? Compare.Equal
: Convert.ToString(dataGridView_InputData_Signs.Rows[i].Cells[0].Value) == ">="
? Compare.MoreEqual
: Compare.LessEqual;
}
Direction direction = radioButton_InputData_Max.Checked ? Direction.Max : Direction.Min;
SimplexMethod simplexMethod = new SimplexMethod(numberOfRows, numberOfCollumns, mainArray, function,
freeValues, signs, direction);
if (comboBox_ChooseMethod.SelectedIndex == 0)
{
_table = simplexMethod.MakeSimplexTable();
}
else
{
_table = simplexMethod.MakeDoubleSimplexTable();
}
FillDataGrid(_table, dataGridView_Result);
if (comboBox_ChooseMethod.SelectedIndex == 0 && _table.Function[_table.MainCollumnForNextStep] >= 0)
{
MessageBox.Show("Оптимальний план знайдено.\nЗначення функції - " + _table.FunctionResult + ".");
}
if (comboBox_ChooseMethod.SelectedIndex == 1 && _table.FreeValues[_table.MainRowForNextStep] >= 0)
{
MessageBox.Show("Оптимальний план знайдено.\nЗначення функції - " + _table.FunctionResult + ".");
}
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
}
}
public void AddRestriction()
{
int indexOfRow = FindIndexOfMaxFractionInArr(Table.FreeValues);
// add row and collumn
Table.NumberOfCollumns += 1;
Table.NumberOfRows += 1;
// rewrite old variables
double[][] newVariables = new double[Table.NumberOfRows][];
for (int i = 0; i < newVariables.Length; i++)
{
newVariables[i] = new double[Table.NumberOfCollumns];
}
for (int i = 0; i < Table.NumberOfRows - 1; i++)
{
for (int j = 0; j < Table.NumberOfCollumns - 1; j++)
{
newVariables[i][j] = Table.Variables[i][j];
}
}
// add new row
double[] lastRow = new double[Table.NumberOfCollumns];
for (int i = 0; i < Table.NumberOfCollumns - 1; i++)
{
lastRow[i] = -TakeFraction(Table.Variables[indexOfRow][i]);
}
lastRow[Table.NumberOfCollumns - 1] = 1;
for (int i = 0; i < Table.NumberOfCollumns; i++)
{
newVariables[Table.NumberOfRows - 1][i] = lastRow[i];
}
Table.Variables = newVariables;
// change freeValues
double[] freeValues = new double[Table.NumberOfRows];
for (int i = 0; i < freeValues.Length - 1; i++)
{
freeValues[i] = Table.FreeValues[i];
}
freeValues[freeValues.Length - 1] = -TakeFraction(Table.FreeValues[indexOfRow]);
Table.FreeValues = freeValues;
// change basis
int[] basis = new int[Table.NumberOfRows];
for (int i = 0; i < Table.NumberOfRows - 1; i++)
{
basis[i] = Table.Basis[i];
}
basis[Table.NumberOfRows - 1] = Table.NumberOfRows - 1;
Table.Basis = basis;
// change function
double[] function = new double[Table.NumberOfCollumns];
for (int i = 0; i < Table.NumberOfCollumns - 1; i++)
{
function[i] = Table.Function[i];
}
Table.Function = function;
var functionResult = Table.FunctionResult;
Table = new DoubleSimplexTable(Table.NumberOfRows, Table.NumberOfCollumns - Table.NumberOfRows, basis, freeValues, newVariables, function);
Table.FunctionResult = functionResult;
}
