private void btnSolve_Click(object sender, EventArgs e)
{
SimplexMethod sm = parseInput();
if (sm == null)
{
return;
}
if (rbGraphicMethod.Checked)
{
if (sm.nVars - sm.nRestrs > 2)
{
MessageBox.Show("Данную задачу нельзя решить графически в 2д");
return;
}
}
if (rbGraphicMethod.Checked)
{
if (sm.nVars - sm.nRestrs == 1)
{
VariablesAmount.Value = VariablesAmount.Value + 1;
sm = parseInput();
if (sm == null)
{
return;
}
}
if (sm.nVars - sm.nRestrs == 0)
{
VariablesAmount.Value = VariablesAmount.Value + 1;
VariablesAmount.Value = VariablesAmount.Value + 1;
sm = parseInput();
if (sm == null)
{
return;
}
}
}
if (!sm.ValidateInput())
{
return;
}
bool autoSteps = cbAutoSteps.Checked;
if (rbMax.Checked)
{
sm.isMax = true;
sm.changeFunctionnSign();
}
try
{
if (rbGraphicMethod.Checked)
{
if (sm.nVars - sm.nRestrs > 2)
{
MessageBox.Show("Данную задачу нельзя решить графически в 2д");
return;
}
var bi = GetBasicIndexes();
if (bi == null)
{
return;
}
sm.setBasicIndexes(bi);
sm.CountGauss();
GraphicMethodForm form = new GraphicMethodForm(sm);
this.Hide();
form.ShowDialog();
this.Show();
}
else
{
if (rbSolutionMethod.Checked)
{
var sol = GetBasicSolution();
if (sol == null)
{
return;
}
try
{
sm.SetBasicSolution(sol, sm.nRestrs);
sm.CountTable();
}
catch (Exception ex)
{
MessageBox.Show("Неверное базисное решение");
}
SimplexMethodForm form = new SimplexMethodForm(sm, autoSteps);
this.Hide();
form.ShowDialog();
this.Show();
}
else
{
SimplexMethod basisTask = sm.GenerateArtificialBasisTask();
basisTask.CountTable();
SimplexMethodForm form = new SimplexMethodForm(basisTask, autoSteps, true);
this.Hide();
form.ShowDialog();
this.Show();
if (form.isFinal())
{
if (form.resultF() != 0)
{
MessageBox.Show("Ограничения системы не совместны, решений нет ");
return;
}
var f = paseFunction();
if (f == null)
{
return;
}
SimplexMethod smTask = form.GetLastTable().GeterateRestrsAfterBasis(f);
if (rbMax.Checked)
{
smTask.isMax = true;
smTask.changeFunctionnSign();
}
smTask.CountTable();
SimplexMethodForm form2 = new SimplexMethodForm(smTask, autoSteps);
this.Hide();
form2.ShowDialog();
this.Show();
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void GraphicMethodForm_Load(object sender, EventArgs e)
{
List <Panel> panels = new List <Panel>();
List <Label> labels = new List <Label>();
panels.Add(panelRestr1);
labels.Add(LabelRestr1);
for (int i = 1; i < sm.nRestrs; i++)
{
panels.Add(new Panel());
labels.Add(new Label());
this.Controls.Add(panels[i]);
this.Controls.Add(labels[i]);
}
int x = panelRestr1.Left;
int y = LabelRestr1.Top;
for (int i = 0; i < sm.nRestrs; i++)
{
panels[i].BackColor = colors[i % colors.Count];
panels[i].Size = panels[0].Size;
labels[i].Text = $"{sm.table[i, 0]}*X1 { ((sm.table[i, 1] >= 0) ? "+" : "")} {sm.table[i, 1]}*X2 <= {sm.table[i, 2]}";
labels[i].Font = labels[0].Font;
labels[i].AutoSize = true;
panels[i].Left = x;
panels[i].Top = y;
labels[i].Left = x + 20;
labels[i].Top = y;
y += 20;
}
lblFunction.Text = $"{sm.f[0]}*X1 { ((sm.f[1] >= 0) ? "+" : "")} {sm.f[1]}*X2 { ((sm.f[2] >= 0) ? "+" : "")} {sm.f[2]} -> min";
if (checkInfinity())
{
if (sm.isMax)
{
lblFAns.Text = "Infinity";
lblXAns.Text = "Функция не ограничена сверху";
lblF.Text = "Infinity";
lblX.Text = "Функция не ограничена сверху";
}
else
{
lblFAns.Text = "-Infinity";
lblXAns.Text = "Функция не ограничена снизу";
lblF.Text = "-Infinity";
lblX.Text = "Функция не ограничена снизу";
}
return;
}
if (GetAwailableVertexs().Count != 0)
{
var best = countBest();
lblX.Text = $"X*=({best.Key},{best.Value})";
lblF.Text = $"F*={sm.CountRes(new Rational[] { best.Key, best.Value })}";
if (sm.isMax)
{
sm.changeFunctionnSign();
}
lblFAns.Text = $"F*={sm.CountRes(new Rational[] { best.Key, best.Value })}";
var ans = sm.GetRealAnsver(new Rational[] { best.Key, best.Value });
lblXAns.Text = "X*=(";
for (int i = 0; i < ans.Length; i++)
{
lblXAns.Text += (i != 0 ? "," : "") + ans[i].ToString();
}
lblXAns.Text += ")";
if (sm.isMax)
{
sm.changeFunctionnSign();
}
}
else
{
lblX.Text = $"";
lblF.Text = $"Нет решений";
}
}