private static Gain Focus(AUTD autd, Vector3d point)
{
var devNum = autd.NumDevices;
var data = new ushort[devNum, AUTD.NumTransInDevice];
var waveNumber = 2.0 * Math.PI / autd.Wavelength;
for (var dev = 0; dev < devNum; dev++)
{
for (var i = 0; i < AUTD.NumTransInDevice; i++)
{
var tp = autd.TransPosition(dev, i);
var dist = (tp - point).L2Norm;
var phase = ToPhase(waveNumber * dist);
const ushort duty = 0xFF;
data[dev, i] = (ushort)((duty << 8) | phase);
}
}
return(Gain.Custom(data));
}
