private Point_3D PovorotX(Point_3D old)
{
Point_3D tmp = new Point_3D();
tmp.X = old.X;
tmp.Y = old.Y * Math.Cos(a) - old.Z * Math.Sin(a);
tmp.Z = old.Y * Math.Sin(a) + old.Z * Math.Cos(a);
return(tmp);
}
private Point_3D PovorotY(Point_3D old)
{
Point_3D tmp = new Point_3D();
tmp.X = old.X * Math.Cos(b) + old.Z * Math.Sin(b);
tmp.Y = old.Y;
tmp.Z = -old.X * Math.Sin(b) + old.Z * Math.Cos(b);
return(tmp);
}
private Point_3D CalcCoord(double a, double b)
{
Point_3D tmp = new Point_3D();
tmp.X = r * a;
tmp.Y = r * b;
tmp.Z = r * k * a * b / (Math.Pow(a, 2) + Math.Pow(b, 2));
return(tmp);
}
// Первод в аксонометрические координаты.
private Point_3D CalcCoordAx(Point_3D old, double f, double q)
{
Point_3D tmp = new Point_3D();
tmp.X = old.X * Math.Cos(f) + old.Y * Math.Sin(f);
tmp.Y = -old.X * Math.Sin(f) * Math.Cos(q) + old.Y * Math.Cos(f) * Math.Cos(q) + old.Z * Math.Sin(q);
tmp.Z = old.X * Math.Sin(f) * Math.Sin(q) - old.Y * Math.Cos(f) * Math.Sin(q) + old.Z * Math.Cos(q);
return(tmp);
}
private Point_3D Peremeshenie(Point_3D old)
{
Point_3D tmp = new Point_3D();
tmp.X = old.X + dx;
tmp.Y = old.Y + dy;
tmp.Z = old.Z + dz;
return(tmp);
}
private Point_3D Mashtabirovanie(Point_3D old)
{
Point_3D tmp = new Point_3D();
tmp.X = old.X * kx;
tmp.Y = old.Y * ky;
tmp.Z = old.Z * kz;
return(tmp);
}
private Point_3D PovorotZ(Point_3D old)
{
Point_3D tmp = new Point_3D();
tmp.X = old.X * Math.Cos(g1) - old.Y * Math.Sin(g1);
tmp.Y = old.X * Math.Sin(g1) + old.Y * Math.Cos(g1);
tmp.Z = old.Z;
return(tmp);
}
// Перевод в экранные координаты.
private Point_3D CalcCoordSc(Point_3D old)
{
int x = pictureBox2.ClientSize.Width / 2;
int y = pictureBox2.ClientSize.Height / 2;
Point_3D tmp = new Point_3D();
tmp.X = Convert.ToInt32(x + old.X);
tmp.Y = Convert.ToInt32(y + old.Y);
return(tmp);
}
// Рисование фигуры.
private void Draw()
{
for (int i = 0; i < 39; i++)
{
for (int j = 0; j < 39; j++)
{
if (j != 39)
{
Point p1 = new Point(screen[i, j].X, screen[i, j].Y);
Point p2 = new Point(screen[i, j + 1].X, screen[i, j + 1].Y);
g.DrawLine(pen, p1, p2);
}
else
{
Point_3D p1 = new Point_3D(screen[i, 16].X, screen[i, 16].Y);
Point_3D p2 = new Point_3D(screen[i, 0].X, screen[i, 0].Y);
g.DrawLine(pen, p1, p2);
}
}
}
for (int i = 0; i <= 39; i++)
{
for (int j = 0; j <= 39; j++)
{
if (i != 39)
{
Point_3D p1 = new Point_3D(screen[i, j].X, screen[i, j].Y);
Point_3D p2 = new Point_3D(screen[i + 1, j].X, screen[i + 1, j].Y);
g.DrawLine(pen, p1, p2);
}
else
{
Point_3D p1 = new Point_3D(screen[i, j].X, screen[i, j].Y);
Point_3D p2 = new Point_3D(screen[i, j].X + 1, screen[i, j].Y + 1);
g.DrawLine(pen, p1, p2);
}
}
}
}