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2023-05-06
2023-04-18
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import React, { Component } from "react";
import * as am5 from "@amcharts/amcharts5";
import * as am5map from "@amcharts/amcharts5/map";
import am5geodata_gunwi from "../map";
import am5themes_Animated from "@amcharts/amcharts5/themes/Animated";
import am4geodata_continentsLow from "@amcharts/amcharts4-geodata/continentsLow";
class Map extends Component {
componentDidMount() {
const props = this.props;
let root = am5.Root.new("Map");
root.setThemes([am5themes_Animated.new(root)]);
// remove logo
root._logo.dispose();
let chart = root.container.children.push(
am5map.MapChart.new(root, {
panX: "rotateX",
// projection: am5map.geoAlbersUsa(),
})
);
// Create polygon series
let polygonSeries = chart.series.push(
am5map.MapPolygonSeries.new(root, {
geoJSON: am5geodata_gunwi,
})
);
polygonSeries.mapPolygons.template.setAll({
tooltipText: "{name}",
});
polygonSeries.mapPolygons.template.states.create("hover", {
fill: am5.color(0x297373),
});
let zoomOut = root.tooltipContainer.children.push(
am5.Button.new(root, {
x: am5.p100,
y: 0,
centerX: am5.p100,
centerY: 0,
paddingTop: 18,
paddingBottom: 18,
paddingLeft: 12,
paddingRight: 12,
dx: -20,
dy: 20,
themeTags: ["zoom"],
icon: am5.Graphics.new(root, {
themeTags: ["button", "icon"],
strokeOpacity: 0.7,
draw: function (display) {
display.moveTo(0, 0);
display.lineTo(12, 0);
},
}),
})
);
zoomOut.get("background").setAll({
cornerRadiusBL: 40,
cornerRadiusBR: 40,
cornerRadiusTL: 40,
cornerRadiusTR: 40,
});
zoomOut.events.on("click", function () {
if (currentSeries) {
currentSeries.hide();
}
chart.goHome();
zoomOut.hide();
currentSeries = regionalSeries.KR.series;
currentSeries.show();
});
zoomOut.hide();
// =================================
// Set up point series
// =================================
// Load senior data
am5.net
.load(
"https://gist.githubusercontent.com/jlchoi1932/c3673a65fd00efa9192b3aac5bc02a1a/raw/e7bf0bc2320d0baa2f8274f94084a3dd2b098c91/_GunwiRegion.json"
)
.then(function (result) {
let seniors = am5.JSONParser.parse(result.response);
setupseniors(seniors);
});
let regionalSeries = {};
let currentSeries;
// Parses data and creats map point series for domestic and state-level
function setupseniors(data) {
console.log(data);
// Init country-level series
regionalSeries.KR = {
markerData: [],
series: createSeries("seniors"),
};
// Set current series
currentSeries = regionalSeries.KR.series;
// Process data
am5.array.each(data.query_results, function (senior) {
// Get senior data
senior = {
state: senior.MAIL_ST_PROV_C,
long: am5.type.toNumber(senior.LNGTD_I),
lat: am5.type.toNumber(senior.LATTD_I),
location: senior.co_loc_n,
city: senior.mail_city_n,
count: am5.type.toNumber(senior.count),
};
// Process state-level data
if (regionalSeries[senior.state] == undefined) {
let statePolygon = getPolygon("KR-" + senior.state);
if (statePolygon) {
let centroid = statePolygon.visualCentroid();
// Add state data
regionalSeries[senior.state] = {
target: senior.state,
type: "state",
name: statePolygon.dataItem.dataContext.name,
count: senior.count,
seniors: senior.count,
state: senior.state,
markerData: [],
geometry: {
type: "Point",
coordinates: [centroid.longitude, centroid.latitude],
},
};
regionalSeries.KR.markerData.push(regionalSeries[senior.state]);
} else {
// State not found
return;
}
} else {
regionalSeries[senior.state].seniors++;
regionalSeries[senior.state].count += senior.count;
}
// Process city-level data
// if (regionalSeries[senior.city] == undefined) {
// regionalSeries[senior.city] = {
// target: senior.city,
// type: "city",
// name: senior.city,
// count: senior.count,
// seniors: 1,
// state: senior.state,
// markerData: [],
// geometry: {
// type: "Point",
// coordinates: [senior.long, senior.lat],
// },
// };
// regionalSeries[senior.state].markerData.push(
// regionalSeries[senior.city]
// );
// } else {
// regionalSeries[senior.city].seniors++;
// regionalSeries[senior.city].count += senior.count;
// }
// // Process individual senior
// regionalSeries[senior.city].markerData.push({
// name: senior.location,
// count: senior.count,
// seniors: 1,
// state: senior.state,
// geometry: {
// type: "Point",
// coordinates: [senior.long, senior.lat],
// },
// });
});
console.log(regionalSeries.KR.markerData);
regionalSeries.KR.series.data.setAll(regionalSeries.KR.markerData);
}
// Finds polygon in series by its id
function getPolygon(id) {
let found;
polygonSeries.mapPolygons.each(function (polygon) {
if (polygon.dataItem.get("id") == id) {
found = polygon;
}
});
return found;
}
// Creates series with heat rules
function createSeries(heatfield) {
// Create point series
let pointSeries = chart.series.push(
am5map.MapPointSeries.new(root, {
valueField: heatfield,
calculateAggregates: true,
})
);
// Add senior bullet
let circleTemplate = am5.Template.new(root);
pointSeries.bullets.push(() => {
let container = am5.Container.new(root, {});
let circle = container.children.push(
am5.Circle.new(
root,
{
radius: 12,
fill: am5.color("#f1de04"),
fillOpacity: 0.7,
cursorOverStyle: "pointer",
tooltipText: "{name}:\n[bold]{seniors} seniors[/]",
},
circleTemplate
)
);
let label = container.children.push(
am5.Label.new(root, {
text: "{seniors}",
fill: am5.color(0xffffff),
populateText: true,
centerX: am5.p50,
centerY: am5.p50,
textAlign: "center",
})
);
// Set up drill-down
circle.events.on("click", (ev) => {
// Determine what we've clicked on
let data = ev.target.dataItem.dataContext;
console.log({ data });
// No id? Individual senior - nothing to drill down to further
if (!data.target) {
return;
}
if (data.type === "state") {
props.setCityName(data.name);
}
// Create actual series if it hasn't been yet created
if (!regionalSeries[data.target].series) {
regionalSeries[data.target].series = createSeries("count");
regionalSeries[data.target].series.data.setAll(data.markerData);
}
// Hide current series
// if (currentSeries) {
// currentSeries.hide();
// }
// Control zoom
// if (data.type == "state") {
// let statePolygon = getPolygon("KR-" + data.state);
// polygonSeries.zoomToDataItem(statePolygon.dataItem);
// } else if (data.type == "city") {
// chart.zoomToGeoPoint(
// {
// latitude: data.geometry.coordinates[1],
// longitude: data.geometry.coordinates[0],
// },
// 64,
// true
// );
// }
// zoomOut.show();
// Show new targert series
currentSeries = regionalSeries[data.target].series;
currentSeries.show();
});
return am5.Bullet.new(root, {
sprite: container,
});
});
// Add heat rule for circles
pointSeries.set("heatRules", [
{
target: circleTemplate,
dataField: "value",
min: 10,
max: 30,
key: "radius",
},
]);
// Set up drill-down
// TODO
return pointSeries;
}
this.root = root;
}
componentWillUnmount() {
if (this.root) {
this.root.dispose();
}
}
render() {
return (
<div
className="flex80"
id="Map"
style={{ width: "100%", height: "42vh", marginBottom: "1rem" }}
></div>
);
}
}
export default Map;