private void DrawGraph(float x, float y, float w, float h, float t)
{
float dx = w / 5.0f;
Span <float> samples = stackalloc float[]
{
(1 + MathF.Sin(t * 1.2345f + MathF.Cos(t * 0.33457f) * 0.44f)) * 0.5f,
(1 + MathF.Sin(t * 0.68363f + MathF.Cos(t * 1.3f) * 1.55f)) * 0.5f,
(1 + MathF.Sin(t * 1.1642f + MathF.Cos(t * 0.33457f) * 1.24f)) * 0.5f,
(1 + MathF.Sin(t * 0.56345f + MathF.Cos(t * 1.63f) * 0.14f)) * 0.5f,
(1 + MathF.Sin(t * 1.6245f + MathF.Cos(t * 0.254f) * 0.3f)) * 0.5f,
(1 + MathF.Sin(t * 0.345f + MathF.Cos(t * 0.03f) * 0.6f)) * 0.5f
};
Span <float> sx = stackalloc float[6];
Span <float> sy = stackalloc float[6];
for (int i = 0; i < 6; i++)
{
sx[i] = x + i * dx;
sy[i] = y + h * samples[i] * 0.8f;
}
Paint bg = Paint.LinearGradient(x, y, x, y + h, new Colour(0, 160, 192, 0), new Colour(0, 160, 192, 64));
_nvg.BeginPath();
_nvg.MoveTo(sx[0], sy[0]);
for (int i = 1; i < 6; i++)
{
_nvg.BezierTo(sx[i - 1] + dx * 0.5f, sy[i - 1], sx[i] - dx * 0.5f, sy[i], sx[i], sy[i]);
}
_nvg.LineTo(x + w, y + h);
_nvg.LineTo(x, y + h);
_nvg.FillPaint(bg);
_nvg.Fill();
_nvg.BeginPath();
_nvg.MoveTo(sx[0], sy[0] + 2);
for (int i = 1; i < 6; i++)
{
_nvg.BezierTo(sx[i - 1] + dx * 0.5f, sy[i - 1] + 2, sx[i] - dx * 0.5f, sy[i] + 2, sx[i], sy[i] + 2);
}
_nvg.StrokeColour(new Colour(0, 0, 0, 32));
_nvg.StrokeWidth(3.0f);
_nvg.Stroke();
_nvg.BeginPath();
_nvg.MoveTo(sx[0], sy[0]);
for (int i = 1; i < 6; i++)
{
_nvg.BezierTo(sx[i - 1] + dx * 0.5f, sy[i - 1], sx[i] - dx * 0.5f, sy[i], sx[i], sy[i]);
}
_nvg.StrokeColour(new Colour(0, 160, 192, 255));
_nvg.StrokeWidth(3.0f);
_nvg.Stroke();
for (int i = 0; i < 6; i++)
{
bg = Paint.RadialGradient(sx[i], sy[i] + 2, 3.0f, 8.0f, new Colour(0, 0, 0, 32), new Colour(0, 0, 0, 0));
_nvg.BeginPath();
_nvg.Rect(sx[i] - 10, sy[i] - 10 + 2, 20, 20);
_nvg.FillPaint(bg);
_nvg.Fill();
}
_nvg.BeginPath();
for (int i = 0; i < 6; i++)
{
_nvg.Circle(sx[i], sy[i], 4.0f);
}
_nvg.FillColour(new Colour(0, 160, 192, 255));
_nvg.Fill();
_nvg.BeginPath();
for (int i = 0; i < 6; i++)
{
_nvg.Circle(sx[i], sy[i], 2.0f);
}
_nvg.FillColour(new Colour(220, 220, 220, 255));
_nvg.Fill();
}