forked from MapComplete/MapComplete
70 lines
2.3 KiB
Svelte
70 lines
2.3 KiB
Svelte
<script lang="ts">
|
|
import { UIEventSource } from "../../../Logic/UIEventSource";
|
|
import type { MapProperties } from "../../../Models/MapProperties";
|
|
import { Map as MlMap } from "maplibre-gl";
|
|
import { MapLibreAdaptor } from "../../Map/MapLibreAdaptor";
|
|
import MaplibreMap from "../../Map/MaplibreMap.svelte";
|
|
import ToSvelte from "../../Base/ToSvelte.svelte";
|
|
import Svg from "../../../Svg.js";
|
|
|
|
/**
|
|
* A visualisation to pick a direction on a map background
|
|
*/
|
|
export let value: UIEventSource<undefined | number>;
|
|
export let mapProperties: Partial<MapProperties> & { readonly location: UIEventSource<{ lon: number; lat: number }> };
|
|
let map: UIEventSource<MlMap> = new UIEventSource<MlMap>(undefined);
|
|
let mla = new MapLibreAdaptor(map, mapProperties);
|
|
mla.allowMoving.setData(false)
|
|
mla.allowZooming.setData(false)
|
|
let directionElem: HTMLElement | undefined;
|
|
$: value.addCallbackAndRunD(degrees => {
|
|
console.log("Degrees are", degrees, directionElem);
|
|
if (directionElem === undefined) {
|
|
return;
|
|
}
|
|
directionElem.style.rotate = degrees + "deg";
|
|
});
|
|
|
|
let mainElem : HTMLElement
|
|
function onPosChange(x: number, y: number) {
|
|
const rect = mainElem.getBoundingClientRect();
|
|
const dx = -(rect.left + rect.right) / 2 + x;
|
|
const dy = (rect.top + rect.bottom) / 2 - y;
|
|
const angle = (180 * Math.atan2(dy, dx)) / Math.PI;
|
|
const angleGeo = Math.floor((450 - angle) % 360);
|
|
value.setData(angleGeo);
|
|
}
|
|
|
|
let isDown = false;
|
|
</script>
|
|
|
|
<div bind:this={mainElem} class="relative w-48 h-48 cursor-pointer overflow-hidden"
|
|
on:click={e => onPosChange(e.x, e.y)}
|
|
on:mousedown={e => {
|
|
isDown = true
|
|
onPosChange(e.clientX, e.clientY)
|
|
} }
|
|
on:mousemove={e => {
|
|
if(isDown){
|
|
onPosChange(e.clientX, e.clientY)
|
|
|
|
}}}
|
|
|
|
on:mouseup={() => {
|
|
isDown = false
|
|
} }
|
|
on:touchmove={e => onPosChange(e.touches[0].clientX, e.touches[0].clientY)}
|
|
|
|
|
|
on:touchstart={e => onPosChange(e.touches[0].clientX, e.touches[0].clientY)}>
|
|
<div class="w-full h-full absolute top-0 left-0 cursor-pointer">
|
|
<MaplibreMap {map} attribution={false}></MaplibreMap>
|
|
</div>
|
|
|
|
<div bind:this={directionElem} class="absolute w-full h-full top-0 left-0 border border-red-500">
|
|
|
|
<ToSvelte construct={ Svg.direction_stroke_svg}>
|
|
|
|
</ToSvelte>
|
|
</div>
|
|
</div>
|