progress

website/src/lib/logic/selection-statistics.ts

@@ -1,5 +1,6 @@
-import { writable } from 'svelte/store';
+import { writable, type Writable } from 'svelte/store';
 import { engine, type GlobalStatistics } from '$lib/engine';
+import type { Coordinates } from '$lib/geo';
 
 /** The part of the selection that is highlighted in the elevation profile. */
 export type SlicedStatistics = {
@@ -14,3 +15,6 @@ export const slicedStatistics = writable<SlicedStatistics | undefined>(undefined
 
 // the indices only make sense for the selection they were made on
 engine.statistics.subscribe(() => slicedStatistics.set(undefined));
+
+/** The point of the elevation profile that the pointer is over, shown on the map. */
+export const hoveredPoint: Writable<Coordinates | null> = writable(null);