1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81

/*
 * File: focus.rs
 * Project: gain
 * Created Date: 28/04/2022
 * Author: Shun Suzuki
 * -----
 * Last Modified: 21/11/2023
 * Modified By: Shun Suzuki (suzuki@hapis.k.u-tokyo.ac.jp)
 * -----
 * Copyright (c) 2022-2023 Shun Suzuki. All rights reserved.
 *
 */

use std::collections::HashMap;

use autd3_driver::{
    common::EmitIntensity,
    derive::prelude::*,
    geometry::{Geometry, Vector3},
};

use autd3_derive::Gain;

/// Gain to produce a focal point
#[derive(Gain, Clone, Copy)]
pub struct Focus {
    intensity: EmitIntensity,
    pos: Vector3,
}

impl Focus {
    /// constructor
    ///
    /// # Arguments
    ///
    /// * `pos` - position of the focal point
    ///
    pub fn new(pos: Vector3) -> Self {
        Self {
            pos,
            intensity: EmitIntensity::MAX,
        }
    }

    /// set emission intensity
    ///
    /// # Arguments
    ///
    /// * `intensity` - emission intensity
    ///
    pub fn with_intensity<A: Into<EmitIntensity>>(self, intensity: A) -> Self {
        Self {
            intensity: intensity.into(),
            ..self
        }
    }

    pub fn intensity(&self) -> EmitIntensity {
        self.intensity
    }

    pub fn pos(&self) -> Vector3 {
        self.pos
    }
}

impl Gain for Focus {
    fn calc(
        &self,
        geometry: &Geometry,
        filter: GainFilter,
    ) -> Result<HashMap<usize, Vec<Drive>>, AUTDInternalError> {
        Ok(Self::transform(geometry, filter, |dev, tr| {
            let phase = tr.align_phase_at(self.pos, dev.sound_speed);
            Drive {
                phase,
                intensity: self.intensity,
            }
        }))
    }
}