private void swap(ref PointPol p1, ref PointPol p2)
{
PointPol c = p1;
p1 = p2;
p2 = c;
}
private Polygon parseString(string s, ref List <PointPol> points, ref int cnt)
{
List <Edge> e = new List <Edge>();
var prs = s.Split(' ').Select(x => x.Split(';').Select(z => Convert.ToDouble(z)).ToArray());
int wh = pictureBox1.Width / 2;
foreach (var y in prs)
{
PointPol t0 = new PointPol(y[0] + wh, y[1], y[2]);
points.Add(t0);
}
for (int i = cnt + 1; i < points.Count(); ++i)
{
e.Add(new Edge(i - 1, i));
}
e.Add(new Edge(points.Count() - 1, cnt));
cnt = points.Count();
return(new Polygon(e));
}
private void button6_Click(object sender, EventArgs e)
{
double x1 = Double.Parse(textBoxX1.Text.ToString());
double y1 = Double.Parse(textBoxY1.Text.ToString());
double z1 = Double.Parse(textBoxZ1.Text.ToString());
double x2 = Double.Parse(textBoxX2.Text.ToString());
double y2 = Double.Parse(textBoxY2.Text.ToString());
double z2 = Double.Parse(textBoxZ2.Text.ToString());
double angle = Double.Parse(textBoxAngle.Text.ToString());
PointPol p1 = new PointPol(x1, y1, z1);
PointPol p2 = new PointPol(x2, y2, z2);
foreach (var f in figures)
{
f.rotate(Tuple.Create(p1, p2), angle);
}
print_figures();
}
public PointPol rotate(Tuple <PointPol, PointPol> direction, double angle, double a, double b, double c)
{
double phi = Math.PI / 360 * angle;
PointPol p = shift(-a, -b, -c);
double x1 = direction.Item1.X;
double y1 = direction.Item1.Y;
double z1 = direction.Item1.Z;
double x2 = direction.Item2.X;
double y2 = direction.Item2.Y;
double z2 = direction.Item2.Z;
double vecx = x2 - x1;
double vecy = y2 - y1;
double vecz = z2 - z1;
double len = Math.Sqrt(vecx * vecx + vecy * vecy + vecz * vecz);
double l = vecx / len;
double m = vecy / len;
double n = vecz / len;
double[,] transfer = new double[4, 4] {
{ l *l + Math.Cos(phi) * (1 - l * l), l *(1 - Math.Cos(phi)) * m + n * Math.Sin(phi), l *(1 - Math.Cos(phi)) * n - m * Math.Sin(phi), 0 },
{ l *(1 - Math.Cos(phi)) * m - n * Math.Sin(phi), m *m + Math.Cos(phi) * (1 - m * m), m *(1 - Math.Cos(phi)) * n + l * Math.Sin(phi), 0 },
{ l *(1 - Math.Cos(phi)) * n + m * Math.Sin(phi), m *(1 - Math.Cos(phi)) * n - l * Math.Sin(phi), n *n + Math.Cos(phi) * (1 - n * n), 0 },
{ 0, 0, 0, 1 }
};
var t1 = matrix_multiplication(p.getP(), transfer);
t1 = matrix_multiplication(t1, transfer);
PointPol p2 = translatePol(t1);
PointPol p3 = p2.shift(a, b, c);
return(p3);
}
private void DrawShadedTriangle(PointPol p0, PointPol p1, PointPol p2, string s, ref List <Tuple <PointPol, double> > pixels)
{
PointPol P0 = p0;
PointPol P1 = p1;
PointPol P2 = p2;
// Сортировка точек так, что y0 <= y1 <= y2
if (P1.Y < P0.Y)
{
swap(ref P1, ref P0);
}
if (P2.Y < P0.Y)
{
swap(ref P2, ref P0);
}
if (P2.Y < P1.Y)
{
swap(ref P2, ref P1);
}
int z0 = (int)P0.Z;
/*if (z0 != 0)
* z0 = 1 / z0 * 1000000;
*/
int z1 = (int)P1.Z;
/* if (z1 != 0)
* z1 = 1 / z1 * 1000000;
*
*/
int z2 = (int)P2.Z;
/* if (z2 != 0)
* z2 = 1 / z2 * 1000000;
*/
// Вычисление координат x и значений h для рёбер треугольника
int[] x01 = Interpolate((int)P0.Y, (int)P0.X, (int)P1.Y, (int)P1.X);
int[] h01 = Interpolate((int)P0.Y, z0, (int)P1.Y, z1);
int[] x12 = Interpolate((int)P1.Y, (int)P1.X, (int)P2.Y, (int)P2.X);
int[] h12 = Interpolate((int)P1.Y, z1, (int)P2.Y, z2);
int[] x02 = Interpolate((int)P0.Y, (int)P0.X, (int)P2.Y, (int)P2.X);
int[] h02 = Interpolate((int)P0.Y, z0, (int)P2.Y, z2);
x01 = x01.Take(x01.Count() - 1).ToArray();
int[] x012 = x01.Concat(x12).ToArray();
h01 = h01.Take(h01.Count() - 1).ToArray();
int[] h012 = h01.Concat(h12).ToArray();
int m = x012.Count() / 2;
int[] x_left, x_right, h_left, h_right;
if (x02[m] < x012[m])
{
x_left = x02;
x_right = x012;
h_left = h02;
h_right = h012;
}
else
{
x_left = x012;
x_right = x02;
h_left = h012;
h_right = h02;
}
// Отрисовка горизонтальных отрезков
for (int y = (int)P0.Y; y <= (int)P2.Y; ++y)
{
int x_l = x_left[y - (int)P0.Y];
int x_r = x_right[y - (int)P0.Y];
int[] h_segment = Interpolate(x_l, h_left[y - (int)P0.Y], x_r, h_right[y - (int)P0.Y]);
for (int x = x_l; x <= x_r; ++x)
{
double ourZ = h_segment[x - x_l];
pixels.Add(Tuple.Create(new PointPol(x, y, ourZ), ourZ));
}
}
}