maplibre 0.0.2

Native Maps for Web, Mobile and Desktop
Documentation 
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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102

//! Handles IO related processing as well as multithreading.

use crate::coords::WorldTileCoords;

use crate::render::ShaderVertex;
use crate::tessellation::{IndexDataType, OverAlignedVertexBuffer};

use geozero::mvt::tile;
use std::collections::HashSet;
use std::fmt;

pub mod scheduler;
pub mod source_client;
pub mod static_tile_fetcher;

pub mod geometry_index;
pub mod shared_thread_state;
pub mod tile_cache;
pub mod tile_request_state;

pub enum TileFetchResult {
    Unavailable {
        coords: WorldTileCoords,
    },
    Tile {
        coords: WorldTileCoords,
        data: Box<[u8]>,
    },
}

impl fmt::Debug for TileFetchResult {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(
            f,
            "TileFetchResult({})",
            match self {
                TileFetchResult::Unavailable { coords, .. } => coords,
                TileFetchResult::Tile { coords, .. } => coords,
            }
        )
    }
}

pub enum TessellateMessage {
    Tile(TileTessellateMessage),
    Layer(LayerTessellateMessage),
}

pub struct TileTessellateMessage {
    pub request_id: TileRequestID,
    pub coords: WorldTileCoords,
}

pub enum LayerTessellateMessage {
    UnavailableLayer {
        coords: WorldTileCoords,
        layer_name: String,
    },
    TessellatedLayer {
        coords: WorldTileCoords,
        buffer: OverAlignedVertexBuffer<ShaderVertex, IndexDataType>,
        /// Holds for each feature the count of indices
        feature_indices: Vec<u32>,
        layer_data: tile::Layer,
    },
}

impl fmt::Debug for LayerTessellateMessage {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "LayerTessellateMessage{}", self.get_coords())
    }
}

impl LayerTessellateMessage {
    pub fn get_coords(&self) -> WorldTileCoords {
        match self {
            LayerTessellateMessage::UnavailableLayer { coords, .. } => *coords,
            LayerTessellateMessage::TessellatedLayer { coords, .. } => *coords,
        }
    }

    pub fn layer_name(&self) -> &str {
        match self {
            LayerTessellateMessage::UnavailableLayer { layer_name, .. } => layer_name.as_str(),
            LayerTessellateMessage::TessellatedLayer { layer_data, .. } => &layer_data.name,
        }
    }
}

#[derive(Clone)]
pub struct TileRequest {
    pub coords: WorldTileCoords,
    pub layers: HashSet<String>,
}

impl fmt::Debug for TileRequest {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "TileRequest({}, {:?})", &self.coords, &self.layers)
    }
}

pub type TileRequestID = u32;