private void InitBrush()
{
if (_lbrsv == null)
{
_lbrsv = new LinearGradientBrush
(new Point(0, 0), new Point(1, 0), Color.Black, Color.White);
float dy = 0f, incy = 360f / (float)(num - 1);
float[] pos = new float[num];
Color[] col = new Color[num];
HSL hue = new HSL(0, 50, 100);
for (int i = 0; i < num; i++, dy += incy)
{
hue.h = (int)dy;
pos[i] = dy / 360f;
col[i] = HSL.Hue2RGB(hue);
}
ColorBlend ret = new ColorBlend();
//pos[pos.Length-1]=1f;
ret.Colors = col;
ret.Positions = pos;
_lbrsv.InterpolationColors = ret;
}
if (_lbrsh == null)
{
_lbrsh = new LinearGradientBrush
(new Point(0, 0), new Point(1, 0), Color.Black, Color.White);
ColorBlend ret = new ColorBlend();
ret.Positions = new float[] { 0f, 0.5f, 1f };
ret.Colors = new Color[] { Color.White, Color.FromArgb(0, 128, 128, 128), Color.Black };
_lbrsh.InterpolationColors = ret;
}
float w = Math.Max(this.Width, 3),
h = Math.Max(this.Height, 3);
_lbrsv.Transform = new Matrix(0f, h, w, 0f, 0f, 0f);
_lbrsh.Transform = new Matrix(w, 0f, 0f, h, 0f, 0f);
_transfrm = new Matrix(w - 1f, 0f, 0f, h - 1f, 0f, 0f);
}
private void InitBrush()
{
if (_pthbrs == null)
{
double num2 = (double)num;
PointF[] pts = new PointF[num];
Color[] cols = new Color[num];
for (int i = 0; i < num; i++)
{
cols[i] = HSL.Hue2RGB(new HSL((int)((double)i * (360 / num2)), 50, 100));
pts[i] = new PointF((float)Math.Sin((double)i * (2.0 / num2) * Math.PI),
(float)Math.Cos((double)i * (2.0 / num2) * Math.PI));
}
_pthbrs = new PathGradientBrush(pts);
_pthbrs.SurroundColors = cols;
_pthbrs.FocusScales = new PointF(0f, 0f);
_pthbrs.CenterColor = Color.White;
}
float w = Math.Max(this.Width / 2, 3), h = Math.Max(this.Height / 2, 3);
_pthbrs.Transform = new Matrix(w, 0f, 0f, h, w, h);
_transfrm = new Matrix(w - 2f, 0f, 0f, h - 2f, w, h);
}
private Color FindPoint2(PointF val)
{
return(HSL.Hue2RGB(FindPoint(val)));
}