public void Draw(PointF point1, PointF point2)
{
if (_bitmap == null) return;
point1 = point1.Rescale(_width, _height);
point2 = point2.Rescale(_width, _height);
var dst = Math.Sqrt(Util.DistanceSqr(point1, point2));
var nSteps = (int) Math.Ceiling(dst/_drawPxDist);
lock (_bitmap)
{
using (var g = Graphics.FromImage(_bitmap))
{
g.CompositingMode = CompositingMode.SourceOver;
//g.DrawLine(Pens.White, point1, point2);
for (var step = 1; step < nSteps; step++)
{
var alpha = step/(float) (nSteps - 1);
var p = point1.LerpTo(point2, alpha);
g.DrawImage(_brushBitmap, p.X - _brushBitmap.Width * 0.5f, p.Y - _brushBitmap.Height * 0.5f);
}
}
}
}
