public Dot[] FillPolygon(PointF[] pts, RGB rgb)
{
PointF minPt, maxPt;
minPt = getMin(pts);
maxPt = getMax(pts);
float width = maxPt.X - minPt.X;
float height = maxPt.Y - minPt.Y;
using (var bmp = createBitmap(width, height))
{
using (var gc = craeteGraphics(bmp, SmoothingMode.AntiAlias))
{
var brush = new SolidBrush(rgb.ToColor());
var newPts = new List <PointF>();
foreach (var pt in pts)
{
newPts.Add(new PointF(pt.X - minPt.X, pt.Y - minPt.Y));
}
gc.FillPolygon(brush, newPts.ToArray());
}
return(GetPixel(bmp, minPt));
}
}
public Dot[] Circle(double x, double y, double w, double h, RGB rgb)
{
using (var bmp = createBitmap(w, h))
{
using (var gc = craeteGraphics(bmp, SmoothingMode.HighSpeed))
{
var pen = new Pen(rgb.ToColor(), 1f);
gc.DrawEllipse(pen, 0f, 0f, (float)w, (float)h);
}
return(GetPixel(bmp, new PointF((float)x, (float)y)));
}
}
public Dot[] Rectangle(RectangleF rect, RGB rgb)
{
using (var bmp = createBitmap(rect.Width, rect.Height))
{
using (var gc = craeteGraphics(bmp, SmoothingMode.None))
{
var pen = new Pen(rgb.ToColor());
gc.DrawRectangle(pen, 0f, 0f, rect.Width, rect.Height);
}
return(GetPixel(bmp, new PointF(rect.X, rect.Y)));
}
}
public Dot[] CircleCenterAt(double x, double y, double w, double h, RGB rgb)
{
using (var bmp = createBitmap(w, h))
{
using (var gc = craeteGraphics(bmp, SmoothingMode.AntiAlias))
{
var pen = new Pen(rgb.ToColor(), 1f);
gc.DrawEllipse(pen, 0f, 0f, (float)w, (float)h);
// gc.DrawEllipse(pen, (float)(x - w/2), (float)(y - h/2), (float)w, (float)h);
}
return(GetPixel(bmp, new PointF((float)(x - w / 2), (float)(y - h / 2))));
}
}
public Dot[] Line(PointF pt1, PointF pt2, RGB rgb, float penwidth)
{
float x, y, width, height;
x = Math.Min(pt1.X, pt2.X);
y = Math.Min(pt1.Y, pt2.Y);
width = Math.Max(pt1.X, pt2.X) - x;
height = Math.Max(pt1.Y, pt2.Y) - y;
using (var bmp = createBitmap(width + penwidth, height + penwidth))
{
using (var gc = craeteGraphics(bmp, SmoothingMode.AntiAlias))
{
var pen = new Pen(rgb.ToColor(), penwidth);
gc.DrawLine(pen, pt1.X - x + penwidth / 2,
pt1.Y - y + penwidth / 2,
pt2.X - x + penwidth / 2,
pt2.Y - y + penwidth / 2);
}
return(GetPixel(bmp, new PointF(x + penwidth / 2, y + penwidth / 2)));
}
}
