Crate egui_map 

egui-map

An egui widget that renders an interactive 2D map on screen.

The map::Map widget displays a set of nodes connected by lines, with support for:

• Panning (click and drag) and zooming (mouse wheel; hold Ctrl — or Cmd on macOS — to zoom faster).
• Spatial indexing of nodes through a kd-tree, so only the nodes inside the current viewport are painted each frame.
• Node names and free-floating text labels with configurable visibility rules (see map::objects::VisibilitySetting).
• Pulsing notifications and blinking markers attached to nodes.
• Custom node rendering and right-click context menus through the map::objects::NodeTemplate and map::objects::ContextMenuManager traits.
• Built-in color themes with independent light and dark variants, or a custom palette installed through map::theme::MapTheme (see map::objects::MapSettings for the rest of the visual style).

Quick start

use egui_map::map::Map;
use egui_map::map::objects::MapPoint;
use std::collections::HashMap;

// Build the node set, keyed by node id.
let mut points: HashMap<usize, MapPoint> = HashMap::new();
points.insert(1, MapPoint::new(1, [0.0, 0.0]));
points.insert(2, MapPoint::new(2, [100.0, 50.0]));

let mut map = Map::new();
map.add_hashmap_points(points);

// Then, on every frame of your egui update loop:
// ui.add(&mut map);

Profiling

The widget’s hot paths (rendering, viewport culling, point/line loading) are instrumented with tracing spans. These are cheap no-ops unless a tracing subscriber is installed somewhere in the final binary; this crate never needs a feature of its own for that — a consumer that installs a subscriber (e.g. tracing_tracy::TracyLayer, for the Tracy profiler) picks up these spans for free, because tracing is a normal, unconditional dependency shared across the whole dependency graph.

Modules

map

Interactive map widget and the data types it renders.