77 lines
1.9 KiB
JavaScript
77 lines
1.9 KiB
JavaScript
"use strict";
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import chroma from 'chroma-js';
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import Config from '../Config.mjs';
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import VoronoiOverlay from './VoronoiOverlay.mjs';
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import VoronoiCell from './VoronoiCell.mjs';
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import Guage from '../Guage.mjs';
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import Specs from './OverlaySpecs.mjs';
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import Vector2 from '../Helpers/Vector2.mjs';
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import GetFromUrl from '../Helpers/GetFromUrl.mjs';
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class VoronoiManager {
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constructor(in_device_data, in_map) {
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this.device_data = in_device_data;
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this.map = in_map;
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this.layer = null;
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this.setup_guage();
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this.setup_overlay();
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}
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setup_overlay() {
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this.overlay = new VoronoiOverlay();
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this.set_data(new Date(), "PM25"); // TODO: Make this customisable
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}
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setup_guage() {
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this.guage = new Guage(document.getElementById("canvas-guage"));
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}
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async set_data(datetime, reading_type) {
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this.spec = Specs[reading_type];
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if(typeof this.spec.chroma == "undefined")
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this.spec.chroma = chroma.scale(Object.values(this.spec.gradient))
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.domain(Object.keys(this.spec.gradient));
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this.guage.set_spec(this.spec);
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this.guage.render();
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let dataset = JSON.parse(await GetFromUrl(
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`${Config.api_root}?action=fetch-data&datetime=${encodeURIComponent(datetime.toISOString())}&reading_type=${encodeURIComponent(reading_type)}`
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));
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let result = [];
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for(let row of dataset) {
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let device = this.device_data.get_by_id(row.device_id);
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if(typeof device.latitude != "number" || typeof device.longitude != "number")
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continue;
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result.push(new VoronoiCell(
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new Vector2(
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device.longitude,
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device.latitude
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),
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// See https://gka.github.io/chroma.js/
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this.spec.chroma(row.value).toString()
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));
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}
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this.overlay.set_cells(result);
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if(this.layer !== null)
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this.layer.remove(); // Remove the old layer if it exists
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// Generate & add the new layer
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this.layer = this.overlay.generate_layer();
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this.layer.addTo(this.map);
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console.log(result);
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}
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}
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export default VoronoiManager;
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