void solver_DebugMaxMin(FractionPoint max, FractionPoint min, Fraction f_tan)
{
if (df == null)
{
df = new DekartForm(100, 100, 100, 100);
df.Text = "max & min";
}
// n
df.AddPolygon(Color.Black, DrawModes.DrawLines,
new PointF(1000, f_tan * 1000),
new PointF(-1000, -f_tan * 1000));
int id1 = df.AddPolygon(Color.Orange, DrawModes.DrawLines,
new PointF(1000 + max.X, -1 / f_tan * 1000 + max.Y),
new PointF(-1000 + max.X, 1 / f_tan * 1000 + max.Y));
int id2 = df.AddPolygon(Color.CornflowerBlue, DrawModes.DrawLines,
new PointF(1000 + min.X, -1 / f_tan * 1000 + min.Y),
new PointF(-1000 + min.X, 1 / f_tan * 1000 + min.Y));
df.Update2();
df.AddPolygon(Color.Orange, 3f, DrawModes.DrawPoints, new PointF(max.X, max.Y));
df.AddPolygon(Color.CornflowerBlue, 3f, DrawModes.DrawPoints, new PointF(min.X, min.Y));
df.Show();
df.Update2();
}
protected void OnMaxMinPoints(FractionPoint max, FractionPoint min, Fraction f_tangence)
{
if (DebugMaxMinPts != null)
{
DebugMaxMinPts(max, min, f_tangence);
}
}
void solver_DebugMaxMin(FractionPoint max, FractionPoint min, Fraction f_tan)
{
if (df == null)
{
df = new DekartForm(100, 100, 100, 100);
df.Text = "max & min";
}
df.Use_IsVisible = false;
// n
df.AddPolygon(Color.Black, DrawModes.DrawLines,
new PointF(1000, f_tan * 1000),
new PointF(-1000, -f_tan * 1000));
for (float percent = 0; ; percent += .05f)
{
int id1 = df.AddPolygon(Color.Black, DrawModes.DrawLines,
new PointF(1000 + max.X * percent, -1 / f_tan * 1000 + max.Y * percent),
new PointF(-1000 + max.X * percent, 1 / f_tan * 1000 + max.Y * percent));
int id2 = df.AddPolygon(Color.Black, DrawModes.DrawLines,
new PointF(1000 + min.X * percent, -1 / f_tan * 1000 + min.Y * percent),
new PointF(-1000 + min.X * percent, 1 / f_tan * 1000 + min.Y * percent));
//int id1 = df.AddPolygon(Color.Orange, DrawModes.DrawLines,
// new PointF(1000 + max.X * percent, -1 / f_tan * 1000 + max.Y * percent),
// new PointF(-1000 + max.X * percent, 1 / f_tan * 1000 + max.Y * percent));
//int id2 = df.AddPolygon(Color.CornflowerBlue, DrawModes.DrawLines,
// new PointF(1000 + min.X * percent, -1 / f_tan * 1000 + min.Y * percent),
// new PointF(-1000 + min.X * percent, 1 / f_tan * 1000 + min.Y * percent));
if (percent >= 0.99f)
{
break;
}
df.Update2();
Application.DoEvents();
df.RemoveGraphic(id2);
df.RemoveGraphic(id1);
}
//df.AddPolygon(Color.Orange, 3f, DrawModes.DrawPoints, new PointF(max.X, max.Y));
//df.AddPolygon(Color.CornflowerBlue, 3f, DrawModes.DrawPoints, new PointF(min.X, min.Y));
df.AddPolygon(Color.Black, 3f, DrawModes.DrawPoints, new PointF(max.X, max.Y));
df.AddPolygon(Color.Black, 3f, DrawModes.DrawPoints, new PointF(min.X, min.Y));
df.Show();
df.Update2();
}
public static FractionPoint[] GetEmbracingPolygon(FractionPoint[] pts)
{
double[] keys = new double[pts.Length];
FractionPoint center = new FractionPoint(0, 0);
for (int i = 0; i < pts.Length; i++)
{
center.X += pts[i].X / pts.Length;
center.Y += pts[i].Y / pts.Length;
}
for (int i = 0; i < keys.Length; i++)
{
// fill keys with angles relative to center-point
keys[i] = Math.Atan2(pts[i].Y - center.Y, pts[i].X - center.X);
}
Array.Sort <double, FractionPoint>(keys, pts);
return(pts);
}
