public static Bitmap Midpoint(Bitmap img, int x1, int y1, int x2, int y2, Color cor)
{
Bitmap btm = new Bitmap(img);
int R = (int)Math.Round(Math.Sqrt(Math.Pow(x2 - x1, 2) + Math.Pow(y2 - y1, 2)));
int x = 0;
int y = R;
int d = 1 - R;
btm = DrawCircle.Draw(btm, x, y, x1, y2, cor);
while (y > x)
{
if (d < 0)
{
d += 2 * x + 3;
}
else
{
d += 2 * (x - y) + 5;
y--;
}
x++;
btm = DrawCircle.Draw(btm, x, y, x1, y2, cor);
}
return(btm);
}
public static Bitmap RealCircle(Bitmap img, int x1, int y1, int x2, int y2, Color cor)
{
Bitmap btm = new Bitmap(img);
int raio = (int)Math.Round(Math.Sqrt(Math.Pow(x2 - x1, 2) + Math.Pow(y2 - y1, 2)));
int cx = x1;
int cy = y1;
for (int x = 0; x < raio; x++)
{
int y = (int)Math.Round(Math.Sqrt(Math.Pow(raio, 2) - Math.Pow(x, 2)));
btm = DrawCircle.Draw(btm, x, y, cx, cy, cor);
}
return(btm);
}
private void picBox_MouseMove(object sender, MouseEventArgs e)
{
if (picBox.Image != null)
{
toolTip.SetToolTip(picBox, "X:" + e.X + " Y:" + e.Y);
}
if (polyflag == true && polyfirst == false)
{
picBox.Image = DrawLine.DDA((Bitmap)img, point.X, point.Y, e.X, e.Y, Color.Black);
}
else
{
if (flag == true && picBox.Image != null && polyflag == false)
{
switch (this.Active)
{
case "Equação Real da Reta":
picBox.Image = DrawLine.RealLine((Bitmap)img, point.X, point.Y, e.X, e.Y, Color.Black);
break;
case "DDA":
picBox.Image = DrawLine.DDA((Bitmap)img, point.X, point.Y, e.X, e.Y, Color.Black);
break;
case "Bresenham":
picBox.Image = DrawLine.Bresenham((Bitmap)img, point.X, point.Y, e.X, e.Y, Color.Black);
break;
case "Trigonometria":
picBox.Image = DrawCircle.Trigonometry((Bitmap)img, point.X, point.Y, e.X, e.Y, Color.Black);
break;
case "Ponto Médio":
picBox.Image = DrawCircle.Midpoint((Bitmap)img, point.X, point.Y, e.X, e.Y, Color.Black);
break;
case "Ponto Médio Elipse":
picBox.Image = DrawEllipse.Midpoint((Bitmap)img, point.X, point.Y, e.X, e.Y, Color.Black);
break;
default:
picBox.Image = DrawCircle.RealCircle((Bitmap)img, point.X, point.Y, e.X, e.Y, Color.Black);
break;
}
}
}
}
public static Bitmap Trigonometry(Bitmap img, int x1, int y1, int x2, int y2, Color cor)
{
Bitmap btm = new Bitmap(img);
double angle = 45;
int R = (int)Math.Round(Math.Sqrt(Math.Pow(x2 - x1, 2) + Math.Pow(y2 - y1, 2)));
double perimeter = 2 * Math.PI * R;
double inc = 360 / perimeter;
for (; angle <= 90; angle += inc)
{
double g = angle * Math.PI / 180;
int x = (int)Math.Round(R * Math.Cos(g));
int y = (int)Math.Round(R * Math.Sin(g));
Console.WriteLine(x + " | " + y);
btm = DrawCircle.Draw(btm, x, y, x1, y1, cor);
}
return(btm);
}