rustial_engine/visualization/
point_cloud_layer.rs

1//! Point-cloud / scatter overlay layer.
2
3use std::any::Any;
4
5use crate::layer::{Layer, LayerId, LayerKind};
6use super::{ColorRamp, PointInstanceSet};
7
8/// A point-cloud / scatter visualization layer.
9#[derive(Debug, Clone)]
10pub struct PointCloudLayer {
11    id: LayerId,
12    name: String,
13    visible: bool,
14    opacity: f32,
15    z_index: i32,
16    /// Point instances.
17    pub points: PointInstanceSet,
18    /// Fallback colour ramp for points without per-instance colour.
19    pub ramp: ColorRamp,
20}
21
22impl PointCloudLayer {
23    /// Create a new point-cloud layer.
24    pub fn new(
25        name: impl Into<String>,
26        points: PointInstanceSet,
27        ramp: ColorRamp,
28    ) -> Self {
29        Self {
30            id: LayerId::next(),
31            name: name.into(),
32            visible: true,
33            opacity: 1.0,
34            z_index: 0,
35            points,
36            ramp,
37        }
38    }
39
40    /// Replace the point set.
41    pub fn set_points(&mut self, points: PointInstanceSet) {
42        self.points = points;
43    }
44}
45
46impl Layer for PointCloudLayer {
47    fn id(&self) -> LayerId {
48        self.id
49    }
50
51    fn name(&self) -> &str {
52        &self.name
53    }
54
55    fn kind(&self) -> LayerKind {
56        LayerKind::Visualization
57    }
58
59    fn visible(&self) -> bool {
60        self.visible
61    }
62
63    fn set_visible(&mut self, visible: bool) {
64        self.visible = visible;
65    }
66
67    fn opacity(&self) -> f32 {
68        self.opacity
69    }
70
71    fn set_opacity(&mut self, opacity: f32) {
72        self.opacity = opacity.clamp(0.0, 1.0);
73    }
74
75    fn z_index(&self) -> i32 {
76        self.z_index
77    }
78
79    fn as_any(&self) -> &dyn Any {
80        self
81    }
82
83    fn as_any_mut(&mut self) -> &mut dyn Any {
84        self
85    }
86}
87
88#[cfg(test)]
89mod tests {
90    use super::*;
91    use crate::visualization::{ColorStop, PointInstance};
92    use rustial_math::GeoCoord;
93
94    fn test_ramp() -> ColorRamp {
95        ColorRamp::new(vec![
96            ColorStop { value: 0.0, color: [0.0, 0.0, 1.0, 1.0] },
97            ColorStop { value: 1.0, color: [1.0, 0.0, 0.0, 1.0] },
98        ])
99    }
100
101    #[test]
102    fn point_cloud_layer_basics() {
103        let points = PointInstanceSet::new(vec![
104            PointInstance::new(GeoCoord::from_lat_lon(0.0, 0.0), 5.0)
105                .with_pick_id(1),
106        ]);
107        let layer = PointCloudLayer::new("points", points, test_ramp());
108        assert_eq!(layer.name(), "points");
109        assert_eq!(layer.points.len(), 1);
110        assert_eq!(layer.points.points[0].pick_id, 1);
111    }
112
113    #[test]
114    fn point_cloud_layer_downcast() {
115        let layer: Box<dyn Layer> = Box::new(PointCloudLayer::new(
116            "test",
117            PointInstanceSet::default(),
118            test_ramp(),
119        ));
120        assert!(layer.as_any().downcast_ref::<PointCloudLayer>().is_some());
121    }
122}
rustial_engine/visualization/point_cloud_layer.rs

rustial_engine/visualization/
point_cloud_layer.rs
