//将初始矩形的坐标投影到当前画布状态
private OECPVertex I2C(OECPVertex vtx)
{
var t = (OECPVertex)vtx.Clone();;
var w2dw1 = _square.Width / _dSquare.Width;
var cUnitVector = new PointF(_dSquare.Location.X - vtx.X, _dSquare.Location.Y - vtx.Y);
var x0 = _square.Location.X - cUnitVector.X * w2dw1;
var y0 = _square.Location.Y - cUnitVector.Y * w2dw1;
t.X = x0;
t.Y = y0;
return(t);
}
//获得初始正方形上对应的点
private OECPVertex C2I(OECPVertex vtx)
{
var tVtx = (OECPVertex)vtx.Clone();
var w2dw1 = _square.Width / _dSquare.Width;
var cUnitVector = new PointF(_square.Location.X - vtx.X, _square.Location.Y - vtx.Y);
var x0 = _dSquare.Location.X - cUnitVector.X / w2dw1;
var y0 = _dSquare.Location.Y - cUnitVector.Y / w2dw1;
tVtx.X = x0;
tVtx.Y = y0;
return(tVtx);
}
