private Point[] GetRectancleCoor(RectancleInfo info)
{
double Xdelta = Math.Abs(info.leftUp.X - info.rightUp.X);
double Ydelta = Math.Abs(info.leftUp.Y - info.rightUp.Y);
Point[] rectanclePoints = null;
if (info.leftUp.Y <= info.rightUp.Y)
{
rectanclePoints = new Point[]
{
info.leftUp,
info.rightUp,
new Point(info.rightUp.X + Ydelta, info.rightUp.Y - Xdelta),
new Point(info.leftUp.X + Ydelta, info.leftUp.Y - Xdelta),
};
}
else
{
rectanclePoints = new Point[]
{
info.leftUp,
info.rightUp,
new Point(info.rightUp.X - Ydelta, info.rightUp.Y - Xdelta),
new Point(info.leftUp.X - Ydelta, info.leftUp.Y - Xdelta),
};
}
return(rectanclePoints);
}
private void SetNewRectancle(IList <Point> points)
{
Random random = new Random();
byte[] colors = new byte[4];
random.NextBytes(colors);
Color randomColor = new Color()
{
A = colors[0],
B = colors[1],
R = colors[2],
G = colors[3]
};
Point left, right;
if (points[0].Y <= points[1].Y)
{
left = new Point()
{
X = (points[3].X + points[0].X) / 2,
Y = (points[3].Y + points[0].Y) / 2
};
right = new Point()
{
X = (points[0].X + points[1].X) / 2,
Y = (points[0].Y + points[1].Y) / 2
};
}
else
{
left = new Point()
{
X = (points[0].X + points[1].X) / 2,
Y = (points[0].Y + points[1].Y) / 2
};
right = new Point()
{
X = (points[1].X + points[2].X) / 2,
Y = (points[1].Y + points[2].Y) / 2
};
}
newRectancle = new RectancleInfo()
{
leftUp = left,
rightUp = right,
brush = new SolidColorBrush(randomColor)
};
}