private void drawRedCurve(object sender, PaintEventArgs e, ConvertValueToPixel xMapFunc, ConvertValueToPixel yMapFunc)
{
int i = 0;
Point p1 = new Point(), p2 = new Point();
Graphics gr = e.Graphics;
// Draw Graph
// red curve
// y axis is Angle smoll bush
double x1, y1;
// fist we find first non empty text pair
for (i = 15; i > 0; i--)
{
TextBox tbx1 = (Controls.Find("textBoxX1_" + i.ToString(), true)[0] as TextBox);
TextBox tby11 = (Controls.Find("textBoxY11_" + i.ToString(), true)[0] as TextBox);
if (tby11.Text == "" || tbx1.Text == "")
{
continue;
}
x1 = Convert.ToSingle(tbx1.Text);
y1 = Convert.ToSingle(tby11.Text);
x1 = xMapFunc(x1);
y1 = yMapFunc(y1);
p1 = new Point((int)x1, (int)(y1));
break;
}
for (int j = i - 1; j > 0; j--)
{
TextBox tbx1 = (Controls.Find("textBoxX1_" + j.ToString(), true)[0] as TextBox);
TextBox tby11 = (Controls.Find("textBoxY11_" + j.ToString(), true)[0] as TextBox);
if (tby11.Text == "" || tbx1.Text == "")
{
continue;
}
double x2 = Convert.ToDouble(tbx1.Text);
double y2 = Convert.ToDouble(tby11.Text);
x2 = xMapFunc(x2);
y2 = yMapFunc(y2);
p2 = new Point((int)x2, (int)(y2));
gr.DrawLine(new Pen(Color.Red, 2.0f), p1, p2);
gr.FillEllipse(Brushes.Black, (int)p1.X - 2, p1.Y - 2, 4, 4);
gr.FillEllipse(Brushes.Black, (int)p2.X - 2, p2.Y - 2, 4, 4);
p1 = p2;
}
}
private void drawBlueCurve(object sender, PaintEventArgs e, ConvertValueToPixel xMapFunc, ConvertValueToPixel yMapFunc)
{
double top = paneGraph.Height - 1;
int i = 0;
Point p1 = new Point(), p2 = new Point();
Graphics gr = e.Graphics;
double x1, y1;
//blue curve
for (i = 13; i > 0; i--)
{
TextBox tbx2 = (Controls.Find("textBoxX2_" + i.ToString(), true)[0] as TextBox);
TextBox tby21 = (Controls.Find("textBoxY21_" + i.ToString(), true)[0] as TextBox);
if (tby21.Text == "" || tbx2.Text == "")
{
continue;
}
x1 = Convert.ToSingle(tbx2.Text);
y1 = Convert.ToSingle(tby21.Text);
x1 = xMapFunc(x1);
y1 = yMapFunc(y1);
p1 = new Point((int)x1, (int)(y1));
break;
}
for (int j = i - 1; j > 0; j--)
{
TextBox tbx2 = (Controls.Find("textBoxX2_" + j.ToString(), true)[0] as TextBox);
TextBox tby21 = (Controls.Find("textBoxY21_" + j.ToString(), true)[0] as TextBox);
if (tby21.Text == "" || tbx2.Text == "")
{
continue;
}
double x2 = Convert.ToDouble(tbx2.Text);
double y2 = Convert.ToDouble(tby21.Text);
x2 = xMapFunc(x2);
y2 = yMapFunc(y2);
p2 = new Point((int)x2, (int)(y2));
gr.DrawLine(new Pen(Color.Blue, 2.0f), p1, p2);
gr.FillEllipse(Brushes.Black, (int)p1.X - 2, p1.Y - 2, 4, 4);
gr.FillEllipse(Brushes.Black, (int)p2.X - 2, p2.Y - 2, 4, 4);
p1 = p2;
}
}
private void graphPanel_Paint(object sender, PaintEventArgs e) //draw grid and graph
{
double gridWidth = 9;
double gridHeight = 9;
drawGrid(sender, e, gridWidth, gridHeight);
ConvertValueToPixel xMapFunc = new ConvertValueToPixel(convertXToPixel);
ConvertValueToPixel yAngleSmallBushMapFunc = new ConvertValueToPixel(convertYAngleSmallBushValueToPixel);
ConvertValueToPixel yAngleLargeBushMapFunc = new ConvertValueToPixel(convertYAngleLargeBushValueToPixel);
drawRedCurve(sender, e, xMapFunc, yAngleSmallBushMapFunc);
drawGreenCurve(sender, e, xMapFunc, yAngleLargeBushMapFunc);
drawBlueCurve(sender, e, xMapFunc, yAngleSmallBushMapFunc);
drawYellowCurve(sender, e, xMapFunc, yAngleLargeBushMapFunc);
}