private EPointF GetForceOnPoint(EPointF pnt)
{
//because of error in inclination bitmap edges:
ERectangleF rct = this.Rect + new ERectangleF(2, 2, -4, -4);
if (!rct.Contains(pnt))
{
return(new EPointF());
}
EPointF pntDiff = pnt - this.Loc;
EPoint pntInside = pntDiff.ToEPoint();
Color clr = this.bmpInclination.GetPixel(pntInside.X, pntInside.Y);
//EPointF pntForce = EPointF.FromLengthAndAngle((float)clr.B/1000, (float)Math.Atan2((clr.R-128), -(clr.G-128)));
EPointF pntForce = new EPointF(-(clr.R - 128), -(clr.G - 128)) / 600;
return(pntForce);
}
private EPoint GetPointBetween(EPoint pt1, EPoint pt2, float ratio)
{
EPointF ptMid = (pt2 - pt1).ToEPointF() * ratio + pt1.ToEPointF();
return(ptMid.ToEPoint());
}