mapcomplete/UI/BigComponents/WaySplitMap.svelte

106 lines
3.7 KiB
Svelte

<script lang="ts">
/**
* This component shows a map which focuses on a single OSM-Way (linestring) feature.
* Clicking the map will add a new 'scissor' point, projected on the linestring (and possible snapped to an already existing node within the linestring;
* clicking this point again will remove it.
* The bound 'value' will contain the location of these projected points.
* Points are not coalesced with already existing nodes within the way; it is up to the code actually splitting the way to decide to reuse an existing point or not
*
* This component is _not_ responsible for the rest of the flow, e.g. the confirm button
*/
import LayerConfig from "../../Models/ThemeConfig/LayerConfig"
import type { LayerConfigJson } from "../../Models/ThemeConfig/Json/LayerConfigJson"
import split_point from "../../assets/layers/split_point/split_point.json"
import split_road from "../../assets/layers/split_road/split_road.json"
import { UIEventSource } from "../../Logic/UIEventSource"
import { Map as MlMap } from "maplibre-gl"
import type { MapProperties } from "../../Models/MapProperties"
import { MapLibreAdaptor } from "../Map/MapLibreAdaptor"
import MaplibreMap from "../Map/MaplibreMap.svelte"
import { OsmWay } from "../../Logic/Osm/OsmObject"
import ShowDataLayer from "../Map/ShowDataLayer"
import StaticFeatureSource from "../../Logic/FeatureSource/Sources/StaticFeatureSource"
import { GeoOperations } from "../../Logic/GeoOperations"
import { BBox } from "../../Logic/BBox"
import type { Feature, LineString, Point } from "geojson"
const splitpoint_style = new LayerConfig(
<LayerConfigJson>split_point,
"(BUILTIN) SplitRoadWizard.ts",
true
) as const
const splitroad_style = new LayerConfig(
<LayerConfigJson>split_road,
"(BUILTIN) SplitRoadWizard.ts",
true
) as const
/**
* The way to focus on
*/
export let osmWay: OsmWay
/**
* How to render this layer.
* A default is given
*/
export let layer: LayerConfig = splitroad_style
/**
* Optional: use these properties to set e.g. background layer
*/
export let mapProperties: undefined | Partial<MapProperties> = undefined
let map: UIEventSource<MlMap> = new UIEventSource<MlMap>(undefined)
let adaptor = new MapLibreAdaptor(map, mapProperties)
const wayGeojson: Feature<LineString> = GeoOperations.forceLineString(osmWay.asGeoJson())
adaptor.location.setData(GeoOperations.centerpointCoordinatesObj(wayGeojson))
adaptor.bounds.setData(BBox.get(wayGeojson).pad(2))
adaptor.maxbounds.setData(BBox.get(wayGeojson).pad(2))
new ShowDataLayer(map, {
features: new StaticFeatureSource([wayGeojson]),
drawMarkers: false,
layer: layer,
})
export let splitPoints: UIEventSource<
Feature<
Point,
{
id: number
index: number
dist: number
location: number
}
>[]
> = new UIEventSource([])
const splitPointsFS = new StaticFeatureSource(splitPoints)
new ShowDataLayer(map, {
layer: splitpoint_style,
features: splitPointsFS,
onClick: (clickedFeature: Feature) => {
console.log("Clicked feature is", clickedFeature, splitPoints.data)
const i = splitPoints.data.findIndex((f) => f === clickedFeature)
if (i < 0) {
return
}
splitPoints.data.splice(i, 1)
splitPoints.ping()
},
})
let id = 0
adaptor.lastClickLocation.addCallbackD(({ lon, lat }) => {
const projected = GeoOperations.nearestPoint(wayGeojson, [lon, lat])
projected.properties["id"] = id
id++
splitPoints.data.push(<any>projected)
splitPoints.ping()
})
</script>
<div class="h-full w-full">
<MaplibreMap {map} />
</div>