private spacing GetXSpacing()
{
spacing x = new spacing();
x.B = Convert.ToDouble(textBoxXSt.Text);
x.E = Convert.ToDouble(textBoxXEnd.Text);
x.D = Convert.ToDouble(textBoxXDelta.Text);
return(x);
}
private spacing GetZSpacing()
{
spacing z = new spacing();
z.B = Convert.ToDouble(textBoxYStart.Text);
z.E = Convert.ToDouble(textBoxYEnd.Text);
z.D = Convert.ToDouble(textBoxYDelta.Text);
return(z);
}
public void Go()
{
canvas.Refresh();
g.Clear(Color.White);
spacing x = GetXSpacing();
spacing z = GetZSpacing();
double ox = Convert.ToDouble(numericUpDownX.Value);
double oy = Convert.ToDouble(numericUpDownY.Value);
double oz = Convert.ToDouble(numericUpDownZ.Value);
var f = GetFunction();
horizon = new Horizont(penDraw, canvas.Size, f);
horizon.HorizonAlgo(x, z, g, ox, oy, oz);
canvas.Refresh();
}
public void HorizonAlgo(spacing parX, spacing parZ, Graphics painter, double tetax, double tetay, double tetaz)
{
prepareArrays();
int x_left = -1, y_left = -1, x_right = -1, y_right = -1;
int x_prev = 0, y_prev = 0;
for (double z = parZ.E; z >= parZ.B; z -= parZ.D)
{
double y_p = f(parX.B, z);
transform(ref parX.B, ref y_p, ref z, tetax, tetay, tetaz, ref x_prev, ref y_prev);
ProcessEdge(ref x_prev, ref y_prev, ref x_left, ref y_left, painter);
int Pflag = Visible(x_prev, y_prev);
for (double x = parX.B; x <= parX.E; x += parX.D)
{
int x_curr = 0, y_curr = 0;
int xi = 0, yi = 0;
y_p = f(x, z);
transform(ref x, ref y_p, ref z, tetax, tetay, tetaz, ref x_curr, ref y_curr);
int Tflag = Visible(x_curr, y_curr);
if (Tflag == Pflag)
{
if (Pflag != 0)
{
horizon(x_prev, y_prev, x_curr, y_curr, painter);
}
}
else if (Tflag == 0)
{
if (Pflag == 1)
{
GetIntersection(x_prev, y_prev, x_curr, y_curr, TOP, ref xi, ref yi);
}
else
{
GetIntersection(x_prev, y_prev, x_curr, y_curr, DOWN, ref xi, ref yi);
}
horizon(x_prev, y_prev, xi, yi, painter);
}
else if (Tflag == 1)
{
if (Pflag == 0)
{
GetIntersection(x_prev, y_prev, x_curr, y_curr, TOP, ref xi, ref yi);
horizon(x_prev, y_prev, xi, yi, painter);
}
else
{
GetIntersection(x_prev, y_prev, x_curr, y_curr, TOP, ref xi, ref yi);
horizon(x_prev, y_prev, xi, yi, painter);
GetIntersection(x_prev, y_prev, x_curr, y_curr, DOWN, ref xi, ref yi);
horizon(xi, yi, x_curr, y_curr, painter);
}
}
else
{
if (Pflag == 0)
{
GetIntersection(x_prev, y_prev, x_curr, y_curr, DOWN, ref xi, ref yi);
horizon(x_prev, y_prev, xi, yi, painter);
}
else
{
GetIntersection(x_prev, y_prev, x_curr, y_curr, TOP, ref xi, ref yi);
horizon(x_prev, y_prev, xi, yi, painter);
GetIntersection(x_prev, y_prev, x_curr, y_curr, DOWN, ref xi, ref yi);
horizon(xi, yi, x_curr, y_curr, painter);
}
}
Pflag = Tflag;
x_prev = x_curr;
y_prev = y_curr;
}
ProcessEdge(ref x_prev, ref y_prev, ref x_right, ref y_right, painter);
}
}
