public void DrawLine(float dt, int steps, bool colored = false)
{
VertexHelper.Clear();
VertexHelper.CurrentColor = Colors.LightGreen;
for (int i = 0; i < steps; i++)
{
var t = (colored) ? ((float)Math.Cos(_currentDt) + 1f) / 2f : 1;
VertexHelper.Put(_xs[0], _xs[1], Color.FromScRgb(1f, 0, t, 0));
_xs = _cf.Runge(_xs, dt);
_currentDt += dt;
}
VertexHelper.Draw(PrimitiveType.Points);
}
public void DrawLain(Vector3 start, float dt, int steps)
{
VertexHelper.Clear();
VertexHelper.CurrentColor = Colors.Black;
VertexHelper.Put(start);
var xs = start.ToArray();
for (int i = 1; i < steps; i++)
{
xs = Runge(xs, dt);
VertexHelper.Put(xs[0], xs[1], xs[2]);
}
VertexHelper.Draw(PrimitiveType.LineStrip);
}
private void DrawCircle(Vector2 center, float a1, float a2, float w1, float w2, float phi)
{
VertexHelper.Clear();
var n = 400;
var dt = (float)(2 * Math.PI) / (w1 * (n - 1));
float t = 0;
for (int i = 0; i < n; i++, t += dt)
{
var x = (float)Math.Sin(w1 * t) * a1 + center.X;
var y = (float)Math.Cos(w2 * t - phi) * a2 + center.Y;
VertexHelper.Put(x, y);
}
VertexHelper.Draw(PrimitiveType.LineLoop);
Gl.LineWidth(6);
}
public static void Draw(float a, float b, float c, bool gefuellt)
{
a *= 0.5f;
b *= 0.5f;
c *= 0.5f;
var A = new Vector3(a, -b, c); // Bodenpunkte
var B = new Vector3(a, -b, -c);
var C = new Vector3(-a, -b, -c);
var D = new Vector3(-a, -b, c);
var E = new Vector3(a, b, c); // Deckpunkte
var F = new Vector3(a, b, -c);
var G = new Vector3(-a, b, -c);
var H = new Vector3(-a, b, c);
VertexHelper.Clear();
if (gefuellt)
{
Viereck(D, C, B, A, e2); // Boden
Viereck(E, F, G, H, e2n); // Deckflaeche
Viereck(A, B, F, E, e1n); // Seitenflaechen
Viereck(B, C, G, F, e3);
Viereck(D, H, G, C, e1);
Viereck(A, E, H, D, e3n);
VertexHelper.Draw(PrimitiveType.Triangles);
}
else
{
kante(A, B); // Boden
kante(B, C);
kante(C, D);
kante(D, A);
kante(E, F); // Decke
kante(F, G);
kante(G, H);
kante(H, E);
kante(A, E); // Kanten
kante(B, F);
kante(C, G);
kante(D, H);
VertexHelper.Draw(PrimitiveType.Lines);
}
}
