private void drawB_Click(object sender, EventArgs e) // WORKING
{
double[] x_tmp = getX(x1, x2, mapa.Width / 4 + 1);
decimal[,] y_tmp = calculateY(x_tmp, functions, selF.ToArray());
Point[,] p_tmp = getPoints(x_tmp, y_tmp);
ThreadHelperClass.SetText(this, integralLabel, "Integral: " + Integrate(x_tmp, y_tmp).ToString("0.#####E+000").TrimEnd('0').TrimEnd('-').TrimEnd('+').TrimEnd('E'));
draw(false, p_tmp, y_tmp);
}
private void calculations_DoWork(object sender, DoWorkEventArgs e)
{
//double integral = 0;
for (int i = 0; i < asyncLength; ++i)
{
if (calculations.CancellationPending)
{
e.Cancel = true;
return;
}
double[] x_tmp = getX(x1, x2, 2 << i + 1);
decimal[,] y_tmp = calculateY(x_tmp, functions, selF.ToArray());
Point[,] p_tmp = getPoints(x_tmp, y_tmp);
ThreadHelperClass.SetText(this, integralLabel, "Integral: " + Integrate(x_tmp, y_tmp).ToString("0.#####E+000").TrimEnd('0').TrimEnd('-').TrimEnd('+').TrimEnd('E'));
draw(true, p_tmp, y_tmp);
calculations.ReportProgress((i + 1) * 10);
Thread.Sleep(1000);
}
}
private void draw(bool async, Point[,] p, Decimal[,] y)
{
Pen pTmp = new Pen(Color.Red, (float)2);
//Brush bTmp = new Brush();
Brush brush = new SolidBrush(Color.Red);
Pen rect = new Pen(Color.Red, (float)1);
Bitmap bmp = new Bitmap(mapa.Width, mapa.Height);
Graphics gr = mapa.CreateGraphics();
Graphics rg = Graphics.FromImage(bmp);
rg.SmoothingMode = SmoothingMode.AntiAlias;
rg.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
rg.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
if (y.GetLength(0) < 1)
{
ThreadHelperClass.SetText(this, maxLabel, "Max Y : ");
ThreadHelperClass.SetText(this, minLabel, "Min Y : ");
mapa.Image = null;
return;
}
ThreadHelperClass.SetText(this, maxLabel, "Max Y : " + MAXY.ToString("0.###E+00").TrimEnd('0').TrimEnd('.').TrimEnd('-').TrimEnd('+').TrimEnd('E'));
ThreadHelperClass.SetText(this, minLabel, "Min Y : " + MINY.ToString("0.###E+00").TrimEnd('0').TrimEnd('.').TrimEnd('-').TrimEnd('+').TrimEnd('E'));
bool draw = false;
for (int i = 0; i < selF.Count; ++i)
{
if (selF[i])
{
draw = true;
}
}
if (async)
{
if (draw)
{
Decimal y0 = (MAXY - MINY) / 2 + MINY;
rg.DrawLine(new Pen(Color.Black, (float)1), conv(x1, 0), conv(x2, 0));
}
else
{
MINY = -1;
MAXY = 1;
Decimal y0 = (MAXY - MINY) / 2 + MINY;
rg.DrawLine(new Pen(Color.Black, (float)1), new Point(0, conv(0, 0).Y), new Point(mapa.Width - 1, conv(0, 0).Y));
}
}
if (y.GetLength(0) >= 1)
{
int dx = p[0, 1].X - p[0, 0].X;
for (int i = 0; i < p.GetLength(0); ++i)
{
pTmp.Color = colors[i];
rect.Color = Color.FromArgb(100, colors[i % colors.Count]);
brush = new SolidBrush(Color.FromArgb(100, colors[i % colors.Count]));
for (int j = 0; j < p.GetLength(1); ++j)
{
rg.DrawEllipse(pTmp, p[i, j].X, p[i, j].Y, (float)1, (float)1);
if (j > 0)
{
rg.DrawLine(pTmp, p[i, j - 1], p[i, j]);
if (async)
{
int x = p[i, j - 1].X;
Decimal yy = (y[i, j - 1] + y[i, j]) / 2;
Rectangle r = new Rectangle();
r.X = x;
r.Width = dx;
if (r.Width == 0)
{
r.Width = 1;
}
if (yy > 0)
{
r.Y = conv(0, yy).Y;
r.Height = -conv(0, yy).Y + conv(0, 0).Y;
}
else
{
r.Y = conv(0, 0).Y;
r.Height = -conv(0, 0).Y + conv(0, yy).Y;
}
rg.FillRectangle(brush, r);
}
}
}
}
}
if (mapa.Image != null)
{
mapa.Image.Dispose();
}
mapa.Image = null;
if (draw)
{
mapa.Image = (Image)bmp.Clone();
}
else
{
mapa.InitialImage = null;
}
pTmp.Dispose();
rg.Dispose();
bmp.Dispose();
gr.Dispose();
}