private void buttonRun_Click(object sender, EventArgs e)
{
chartFuzzy.Series.Clear();
TrapezoidFuzzyNumber fnumA = new TrapezoidFuzzyNumber();
TrapezoidFuzzyNumber fnumB = new TrapezoidFuzzyNumber();
if (!validateAndGetInput(out fnumA, out fnumB))
{
MessageBox.Show("Your input is not valid. Please check again.", "Inalid input!");
return;
}
if (checkBoxOperationDiv.Checked && fnumB.IsZero())
{
MessageBox.Show("Cannot divide by zero.", "Error!");
return;
}
drawTrapezoidFuzzyNumberGraph(ref chartFuzzy, "A", fnumA, Color.Green);
drawTrapezoidFuzzyNumberGraph(ref chartFuzzy, "B", fnumB, Color.Blue);
if (optionBoxIntervalBased.Checked)
{
if (checkBoxOperationAdd.Checked) drawResultIntervalBasedGraph(ref chartFuzzy, fnumA, fnumB, Operation.Add, Color.Magenta);
if (checkBoxOperationSub.Checked) drawResultIntervalBasedGraph(ref chartFuzzy, fnumA, fnumB, Operation.Sub, Color.Chocolate);
if (checkBoxOperationMul.Checked) drawResultIntervalBasedGraph(ref chartFuzzy, fnumA, fnumB, Operation.Mul, Color.Purple);
if (checkBoxOperationDiv.Checked) drawResultIntervalBasedGraph(ref chartFuzzy, fnumA, fnumB, Operation.Div, Color.Red);
resetGraphCoordinate(fnumA, fnumB);
}
else //if (radEPBased.Checked)
{
if (checkBoxOperationAdd.Checked) drawResultEPBasedGraph(ref chartFuzzy, fnumA, fnumB, Operation.Add, Color.Magenta);
if (checkBoxOperationSub.Checked) drawResultEPBasedGraph(ref chartFuzzy, fnumA, fnumB, Operation.Sub, Color.Chocolate);
if (checkBoxOperationMul.Checked) drawResultEPBasedGraph(ref chartFuzzy, fnumA, fnumB, Operation.Mul, Color.Purple);
if (checkBoxOperationDiv.Checked) drawResultEPBasedGraph(ref chartFuzzy, fnumA, fnumB, Operation.Div, Color.Red);
resetGraphCoordinate(fnumA, fnumB);
}
}
private void drawResultEPBasedGraph(ref Chart chart, TrapezoidFuzzyNumber fnumA, TrapezoidFuzzyNumber fnumB, Operation operation, Color color)
{
// calculate result points list
decimal xA, xB, xResult;
decimal aProbability, bProbability, minProbability;
CPoint tempPoint = null;
List<CPoint> resultPointList = new List<CPoint>();
xA = fnumA.BottomLeft;
while (xA <= fnumA.BottomRight)
{
xB = fnumB.BottomLeft;
while (xB <= fnumB.BottomRight)
{
xResult = ExtensionPrinciple.Calculate(operation, xA, xB);
//if (operation == Operation.Mul || operation == Operation.Div)
xResult = Math.Round(xResult, numOfFracDigi);
aProbability = fnumA.Probability(xA);
bProbability = fnumB.Probability(xB);
minProbability = Math.Min(aProbability, bProbability);
tempPoint = resultPointList.FirstOrDefault(p => p.x == xResult);
if (tempPoint == null)
{
resultPointList.Add(new CPoint(xResult, minProbability));
}
else
{
tempPoint.y = Math.Max(tempPoint.y, minProbability);
}
xB += smooth;
}
xA += smooth;
}
// chart by line
Series seriesLine = chart.Series.Add(operation.ToString());
seriesLine.ChartType = SeriesChartType.Line;
seriesLine.BorderWidth = 2;
seriesLine.Color = color;
// chart by point
Series seriesPoint = chart.Series.Add(operation.ToString() + "_point");
seriesPoint.ChartType = SeriesChartType.Point;
seriesPoint.BorderWidth = 2;
seriesPoint.Color = color;
seriesPoint.IsVisibleInLegend = false;
// draw the graph
foreach (CPoint p in resultPointList.OrderBy(i => i.x))
{
// by line
if (checkBoxDrawLine.Checked)
seriesLine.Points.AddXY(p.x, p.y);
// by point
seriesPoint.Points.AddXY(p.x, p.y);
}
addLog(operation.ToString() + " num of point :" + resultPointList.Count.ToString());
resultPointList.Clear();
}
private bool validateAndGetInput(out TrapezoidFuzzyNumber fnumA, out TrapezoidFuzzyNumber fnumB)
{
bool result = true;
fnumA = new TrapezoidFuzzyNumber();
fnumB = new TrapezoidFuzzyNumber();
decimal val = 0;
epInValid.Clear();
// number A
if (!MathsEvaluator.TryParse(textBoxABotLeft.Text, out val))
{
epInValid.SetError(textBoxABotLeft, "Invalid input");
result = false;
}
else
{
fnumA.BottomLeft = val;
}
if (!MathsEvaluator.TryParse(textBoxABotRight.Text, out val))
{
epInValid.SetError(textBoxABotRight, "Invalid input");
result = false;
}
else
{
fnumA.BottomRight = val;
}
if (!MathsEvaluator.TryParse(textBoxATopLeft.Text, out val))
{
epInValid.SetError(textBoxATopLeft, "Invalid input");
result = false;
}
else
{
fnumA.TopLeft = val;
}
if (!MathsEvaluator.TryParse(textBoxATopRight.Text, out val))
{
epInValid.SetError(textBoxATopRight, "Invalid input");
result = false;
}
else
{
fnumA.TopRight = val;
}
// number B
if (!MathsEvaluator.TryParse(textBoxBBotLeft.Text, out val))
{
epInValid.SetError(textBoxBBotLeft, "Invalid input");
result = false;
}
else
{
fnumB.BottomLeft = val;
}
if (!MathsEvaluator.TryParse(textBoxBBotRight.Text, out val))
{
epInValid.SetError(textBoxBBotRight, "Invalid input");
result = false;
}
else
{
fnumB.BottomRight = val;
}
if (!MathsEvaluator.TryParse(textBoxBTopLeft.Text, out val))
{
epInValid.SetError(textBoxBTopLeft, "Invalid input");
result = false;
}
else
{
fnumB.TopLeft = val;
}
if (!MathsEvaluator.TryParse(textBoxBTopRight.Text, out val))
{
epInValid.SetError(textBoxBTopRight, "Invalid input");
result = false;
}
else
{
fnumB.TopRight = val;
}
// options
if (!MathsEvaluator.TryParse(textBoxSmoothly.Text, out val))
{
epInValid.SetError(textBoxSmoothly, "Invalid input");
result = false;
}
else
{
if (val <= 0 || val > 1)
{
epInValid.SetError(textBoxSmoothly, "Smooth is a number in (0,1]");
result = false;
}
else
{
smooth = val;
}
}
if (!MathsEvaluator.TryParse(textBoxNumOfFracDigi.Text, out val))
{
epInValid.SetError(textBoxNumOfFracDigi, "Invalid input");
result = false;
}
else
{
if (val < 0 || val > 10)
{
epInValid.SetError(textBoxNumOfFracDigi, "Number of fractional digits is a number in [0,10]");
result = false;
}
else
{
numOfFracDigi = (int)val;
}
}
// Trapezoid Fuzzy Number validation
if (result)
{
if (!fnumA.IsValid())
{
epInValid.SetError(lblInvalidNumA, "Invalid input");
//MessageBox.Show("The input A is not a Trapezoid Fuzzy Number.", "Invalid input");
result = false;
}
else if (!fnumB.IsValid())
{
epInValid.SetError(lblInvalidNumB, "Invalid input");
//MessageBox.Show("The input B is not a Trapezoid Fuzzy Number.", "Invalid input");
result = false;
}
}
// re-format input
if (result)
{
textBoxABotLeft.Text = fnumA.BottomLeft.ToString();
textBoxABotRight.Text = fnumA.BottomRight.ToString();
textBoxATopLeft.Text = fnumA.TopLeft.ToString();
textBoxATopRight.Text = fnumA.TopRight.ToString();
textBoxBBotLeft.Text = fnumB.BottomLeft.ToString();
textBoxBBotRight.Text = fnumB.BottomRight.ToString();
textBoxBTopLeft.Text = fnumB.TopLeft.ToString();
textBoxBTopRight.Text = fnumB.TopRight.ToString();
textBoxSmoothly.Text = smooth.ToString();
textBoxNumOfFracDigi.Text = numOfFracDigi.ToString();
}
return result;
}
private void resetGraphCoordinate(TrapezoidFuzzyNumber fnumA, TrapezoidFuzzyNumber fnumB)
{
// reset coordinate
decimal minAxisX = Math.Min(fnumA.BottomLeft, fnumB.BottomLeft);
Interval acut;
if (checkBoxOperationAdd.Checked)
{
acut = ArithmeticInterval.Calculate(Operation.Add, fnumA.AlphaCut(0), fnumB.AlphaCut(0));
minAxisX = Math.Min(minAxisX, acut.LowerBound);
}
if (checkBoxOperationSub.Checked)
{
acut = ArithmeticInterval.Calculate(Operation.Sub, fnumA.AlphaCut(0), fnumB.AlphaCut(0));
minAxisX = Math.Min(minAxisX, acut.LowerBound);
}
if (checkBoxOperationMul.Checked)
{
acut = ArithmeticInterval.Calculate(Operation.Mul, fnumA.AlphaCut(0), fnumB.AlphaCut(0));
minAxisX = Math.Min(minAxisX, acut.LowerBound);
}
if (checkBoxOperationDiv.Checked && !fnumB.IsZero())
{
acut = ArithmeticInterval.Calculate(Operation.Div, fnumA.AlphaCut(0), fnumB.AlphaCut(0));
minAxisX = Math.Min(minAxisX, acut.LowerBound);
}
chartFuzzy.ChartAreas[0].AxisX.Minimum = (int)Math.Floor(minAxisX);
}
private void drawTrapezoidFuzzyNumberGraph(ref Chart chart, string name, TrapezoidFuzzyNumber fnum, Color color)
{
// chart by point
Series seriesPoint = chartFuzzy.Series.Add(name + "_point");
seriesPoint.ChartType = SeriesChartType.Point;
seriesPoint.BorderWidth = 2;
seriesPoint.Color = color;
seriesPoint.IsVisibleInLegend = false;
decimal y = 0;
Interval acut;
while (y <= 1)
{
acut = fnum.AlphaCut(y);
seriesPoint.Points.AddXY(acut.LowerBound, y);
seriesPoint.Points.AddXY(acut.UpperBound, y);
y = y + smooth;
}
y = 1;
acut = fnum.AlphaCut(y);
decimal x = acut.LowerBound;
while (x <= acut.UpperBound)
{
seriesPoint.Points.AddXY(x, y);
x += smooth;
}
// chart by line
Series series = chart.Series.Add(name);
series.ChartType = SeriesChartType.Line;
series.BorderWidth = 2;
series.Color = color;
if (checkBoxDrawLine.Checked)
{
series.Points.AddXY(fnum.BottomLeft, 0);
series.Points.AddXY(fnum.TopLeft, 1);
series.Points.AddXY(fnum.TopRight, 1);
series.Points.AddXY(fnum.BottomRight, 0);
}
}
private void drawResultIntervalBasedGraph(ref Chart chart, TrapezoidFuzzyNumber fnumA, TrapezoidFuzzyNumber fnumB, Operation operation, Color color)
{
// calculate result points list
decimal y = 0;
Interval acut, a, b;
List<CPoint> resultPointListLeft = new List<CPoint>();
List<CPoint> resultPointListRight = new List<CPoint>();
while (y <= 1)
{
a = fnumA.AlphaCut(y);
b = fnumB.AlphaCut(y);
acut = ArithmeticInterval.Calculate(operation, a, b);
resultPointListLeft.Add(new CPoint(acut.LowerBound, y));
resultPointListRight.Add(new CPoint(acut.UpperBound, y));
y += smooth;
}
y = 1;
a = fnumA.AlphaCut(y);
b = fnumB.AlphaCut(y);
acut = ArithmeticInterval.Calculate(operation, a, b);
decimal x = acut.LowerBound;
while (x <= acut.UpperBound)
{
resultPointListLeft.Add(new CPoint(x, y));
x += smooth;
}
// chart by line
Series seriesLine = chart.Series.Add(operation.ToString());
seriesLine.ChartType = SeriesChartType.Line;
seriesLine.BorderWidth = 2;
seriesLine.Color = color;
// chart by point
Series seriesPoint = chart.Series.Add(operation.ToString() + "_point");
seriesPoint.ChartType = SeriesChartType.Point;
seriesPoint.BorderWidth = 2;
seriesPoint.Color = color;
seriesPoint.IsVisibleInLegend = false;
// draw the graph
foreach (CPoint p in resultPointListLeft.OrderBy(i => i.x).OrderBy(i => i.y))
{
// by line
if (checkBoxDrawLine.Checked)
seriesLine.Points.AddXY(p.x, p.y);
// by point
seriesPoint.Points.AddXY(p.x, p.y);
}
foreach (CPoint p in resultPointListRight.OrderBy(i => i.x).OrderByDescending(i => i.y))
{
// by line
if (checkBoxDrawLine.Checked)
seriesLine.Points.AddXY(p.x, p.y);
// by point
seriesPoint.Points.AddXY(p.x, p.y);
}
addLog(operation.ToString() + " num of point :" + (resultPointListLeft.Count + resultPointListRight.Count).ToString());
resultPointListLeft.Clear();
resultPointListRight.Clear();
}