273 lines
10 KiB
TypeScript
273 lines
10 KiB
TypeScript
import { SubtleButton } from "../Base/SubtleButton"
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import Svg from "../../Svg"
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import Translations from "../i18n/Translations"
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import { Utils } from "../../Utils"
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import Combine from "../Base/Combine"
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import CheckBoxes from "../Input/Checkboxes"
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import { GeoOperations } from "../../Logic/GeoOperations"
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import Toggle from "../Input/Toggle"
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import Title from "../Base/Title"
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import { Store } from "../../Logic/UIEventSource"
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import SimpleMetaTagger from "../../Logic/SimpleMetaTagger"
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import LayoutConfig from "../../Models/ThemeConfig/LayoutConfig"
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import { BBox } from "../../Logic/BBox"
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import geojson2svg from "geojson2svg"
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import LayerConfig from "../../Models/ThemeConfig/LayerConfig"
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import { SpecialVisualizationState } from "../SpecialVisualization"
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import { Feature, FeatureCollection } from "geojson"
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import { GeoIndexedStoreForLayer } from "../../Logic/FeatureSource/Actors/GeoIndexedStore"
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import LayerState from "../../Logic/State/LayerState"
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export class DownloadPanel extends Toggle {
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constructor(state: SpecialVisualizationState) {
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const t = Translations.t.general.download
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const name = state.layout.id
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const includeMetaToggle = new CheckBoxes([t.includeMetaData])
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const metaisIncluded = includeMetaToggle.GetValue().map((selected) => selected.length > 0)
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const buttonGeoJson = new SubtleButton(
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Svg.floppy_ui(),
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new Combine([
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t.downloadGeojson.SetClass("font-bold"),
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t.downloadGeoJsonHelper,
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]).SetClass("flex flex-col")
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).OnClickWithLoading(t.exporting, async () => {
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const geojson = DownloadPanel.getCleanGeoJson(state, metaisIncluded.data)
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Utils.offerContentsAsDownloadableFile(
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JSON.stringify(geojson, null, " "),
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`MapComplete_${name}_export_${new Date().toISOString().substr(0, 19)}.geojson`,
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{
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mimetype: "application/vnd.geo+json",
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}
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)
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})
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const buttonCSV = new SubtleButton(
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Svg.floppy_ui(),
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new Combine([t.downloadCSV.SetClass("font-bold"), t.downloadCSVHelper]).SetClass(
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"flex flex-col"
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)
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).OnClickWithLoading(t.exporting, async () => {
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const geojson = DownloadPanel.getCleanGeoJson(state, metaisIncluded.data)
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const csv = GeoOperations.toCSV(geojson.features)
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Utils.offerContentsAsDownloadableFile(
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csv,
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`MapComplete_${name}_export_${new Date().toISOString().substr(0, 19)}.csv`,
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{
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mimetype: "text/csv",
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}
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)
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})
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const buttonSvg = new SubtleButton(
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Svg.floppy_ui(),
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new Combine([t.downloadAsSvg.SetClass("font-bold"), t.downloadAsSvgHelper]).SetClass(
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"flex flex-col"
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)
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).OnClickWithLoading(t.exporting, async () => {
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const geojson = DownloadPanel.getCleanGeoJsonPerLayer(state, metaisIncluded.data)
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const maindiv = document.getElementById("maindiv")
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const layers = state.layout.layers.filter((l) => l.source !== null)
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const csv = DownloadPanel.asSvg(geojson, {
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layers,
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mapExtent: state.mapProperties.bounds.data,
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width: maindiv.offsetWidth,
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height: maindiv.offsetHeight,
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})
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Utils.offerContentsAsDownloadableFile(
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csv,
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`MapComplete_${name}_export_${new Date().toISOString().substr(0, 19)}.svg`,
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{
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mimetype: "image/svg+xml",
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}
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)
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})
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const downloadButtons = new Combine([
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new Title(t.title),
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buttonGeoJson,
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buttonCSV,
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buttonSvg,
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includeMetaToggle,
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t.licenseInfo.SetClass("link-underline"),
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]).SetClass("w-full flex flex-col border-4 border-gray-300 rounded-3xl p-4")
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super(
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downloadButtons,
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t.noDataLoaded,
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state.dataIsLoading.map((x) => !x)
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)
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}
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/**
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* Converts a geojson to an SVG
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*
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* const feature = {
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* "type": "Feature",
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* "properties": {},
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* "geometry": {
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* "type": "LineString",
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* "coordinates": [
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* [-180, 80],
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* [180, -80]
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* ]
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* }
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* }
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* const perLayer = new Map<string, any[]>([["testlayer", [feature]]])
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* DownloadPanel.asSvg(perLayer).replace(/\n/g, "") // => `<svg width="1000px" height="1000px" viewBox="0 0 1000 1000"> <g id="testlayer" inkscape:groupmode="layer" inkscape:label="testlayer"> <path d="M0,27.77777777777778 1000,472.22222222222223" style="fill:none;stroke-width:1" stroke="#ff0000"/> </g></svg>`
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*/
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public static asSvg(
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perLayer: Map<string, Feature[]>,
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options?: {
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layers?: LayerConfig[]
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width?: 1000 | number
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height?: 1000 | number
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mapExtent?: BBox
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unit?: "px" | "mm" | string
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}
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) {
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options = options ?? {}
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const width = options.width ?? 1000
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const height = options.height ?? 1000
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if (width <= 0 || height <= 0) {
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throw "Invalid width of height, they should be > 0"
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}
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const unit = options.unit ?? "px"
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const mapExtent = { left: -180, bottom: -90, right: 180, top: 90 }
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if (options.mapExtent !== undefined) {
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const bbox = options.mapExtent
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mapExtent.left = bbox.minLon
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mapExtent.right = bbox.maxLon
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mapExtent.bottom = bbox.minLat
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mapExtent.top = bbox.maxLat
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}
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console.log("Generateing svg, extent:", { mapExtent, width, height })
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const elements: string[] = []
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for (const layer of Array.from(perLayer.keys())) {
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const features = perLayer.get(layer)
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if (features.length === 0) {
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continue
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}
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const layerDef = options?.layers?.find((l) => l.id === layer)
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const rendering = layerDef?.lineRendering[0]
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const converter = geojson2svg({
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viewportSize: { width, height },
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mapExtent,
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output: "svg",
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attributes: [
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{
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property: "style",
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type: "static",
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value: "fill:none;stroke-width:1",
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},
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{
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property: "properties.stroke",
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type: "dynamic",
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key: "stroke",
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},
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],
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})
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for (const feature of features) {
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const stroke =
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rendering?.color?.GetRenderValue(feature.properties)?.txt ?? "#ff0000"
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const color = Utils.colorAsHex(Utils.color(stroke))
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feature.properties.stroke = color
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}
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const groupPaths: string[] = converter.convert({ type: "FeatureCollection", features })
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const group =
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` <g id="${layer}" inkscape:groupmode="layer" inkscape:label="${layer}">\n` +
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groupPaths.map((p) => " " + p).join("\n") +
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"\n </g>"
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elements.push(group)
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}
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const w = width
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const h = height
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const header = `<svg width="${w}${unit}" height="${h}${unit}" viewBox="0 0 ${w} ${h}">`
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return header + "\n" + elements.join("\n") + "\n</svg>"
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}
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private static getCleanGeoJson(
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state: {
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layout: LayoutConfig
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mapProperties: { bounds: Store<BBox> }
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perLayer: ReadonlyMap<string, GeoIndexedStoreForLayer>
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layerState: LayerState
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},
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includeMetaData: boolean
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): FeatureCollection {
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const featuresPerLayer = DownloadPanel.getCleanGeoJsonPerLayer(state, includeMetaData)
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const features = [].concat(...Array.from(featuresPerLayer.values()))
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return {
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type: "FeatureCollection",
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features,
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}
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}
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/**
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* Returns a new feature of which all the metatags are deleted
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*/
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private static cleanFeature(f: Feature): Feature {
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f = {
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type: f.type,
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geometry: { ...f.geometry },
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properties: { ...f.properties },
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}
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for (const key in f.properties) {
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if (key === "_lon" || key === "_lat") {
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continue
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}
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if (key.startsWith("_")) {
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delete f.properties[key]
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}
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}
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const datedKeys = [].concat(
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SimpleMetaTagger.metatags
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.filter((tagging) => tagging.includesDates)
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.map((tagging) => tagging.keys)
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)
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for (const key of datedKeys) {
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delete f.properties[key]
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}
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return f
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}
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private static getCleanGeoJsonPerLayer(
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state: {
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layout: LayoutConfig
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mapProperties: { bounds: Store<BBox> }
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perLayer: ReadonlyMap<string, GeoIndexedStoreForLayer>
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layerState: LayerState
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},
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includeMetaData: boolean
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): Map<string, Feature[]> {
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const featuresPerLayer = new Map<string, any[]>()
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const neededLayers = state.layout.layers.filter((l) => l.source !== null).map((l) => l.id)
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const bbox = state.mapProperties.bounds.data
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for (const neededLayer of neededLayers) {
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const indexedFeatureSource = state.perLayer.get(neededLayer)
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let features = indexedFeatureSource.GetFeaturesWithin(bbox, true)
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// The 'indexedFeatureSources' contains _all_ features, they are not filtered yet
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const filter = state.layerState.filteredLayers.get(neededLayer)
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features = features.filter((f) =>
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filter.isShown(f.properties, state.layerState.globalFilters.data)
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)
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if (!includeMetaData) {
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features = features.map((f) => DownloadPanel.cleanFeature(f))
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}
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featuresPerLayer.set(neededLayer, features)
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}
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return featuresPerLayer
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}
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}
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