private void RotateLine()
{
double X1 = (double)numericUpDown14.Value;
double Y1 = (double)numericUpDown15.Value;
double Z1 = (double)numericUpDown16.Value;
double X2 = (double)numericUpDown17.Value;
double Y2 = (double)numericUpDown18.Value;
double Z2 = (double)numericUpDown19.Value;
XYZLine l = new XYZLine(new XYZPoint(X1, Y1, Z1), new XYZPoint(X2, Y2, Z2));
double ang = (double)numericUpDown20.Value / 180 * Math.PI;
cur_primitive.Apply(Transform.RotateLine(l, ang));
}
public void Draw(Graphics g, Transform projection, int width, int height)
{
if (Points.Count == 1)
{
Points[0].Draw(g, projection, width, height);
}
else
{
for (int i = 0; i < Points.Count - 1; ++i)
{
var line = new XYZLine(Points[i], Points[i + 1]);
line.Draw(g, projection, width, height);
}
(new XYZLine(Points[Points.Count - 1], Points[0])).Draw(g, projection, width, height);
}
}
public static Transform RotateLine(XYZLine line, double angle)
{
double cos = Math.Cos(angle);
double sin = Math.Sin(angle);
double l = Math.Sign(line.B.X - line.A.X);
double m = Math.Sign(line.B.Y - line.A.Y);
double n = Math.Sign(line.B.Z - line.A.Z);
double length = Math.Sqrt(l * l + m * m + n * n);
l /= length; m /= length; n /= length;
return(new Transform(
new double[, ]
{
{ l *l + cos *(1 - l * l), l * (1 - cos) * m + n * sin, l * (1 - cos) * n - m * sin, 0 },
{ l *(1 - cos) * m - n * sin, m * m + cos * (1 - m * m), m * (1 - cos) * n + l * sin, 0 },
{ l *(1 - cos) * n + m * sin, m * (1 - cos) * n - l * sin, n * n + cos * (1 - n * n), 0 },
{ 0, 0, 0, 1 }
}));
}