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// JS module imports
import { useEffect, useRef, useState } from "react";
import uuid from 'react-uuid';
import Graph from 'vis-react';
// CSS imports
import '../css/Canvas.css';
/**
* This function renders and mantains thhe canvas.
* @param {Object} props The props for the canvas.
* @returns {import("react").HtmlHTMLAttributes} The canvas to be retured.
*/
function Visualization(props) {
const options = {
edges: {
color: "#ffffff"
}
};
const events = {
select: () => event => props.setSelected(event.nodes[0])
};
const [graphState, setGraphState] = useState({
nodes: [],
edges: []
});
const getNodes = () => {
let nodes = [];
props.data.forEach(hub => {
if (hub.followers) {
nodes.push({
id: hub.id,
label: hub.name,
size: hub.suspicionScore
});
}
});
return nodes;
}
const getEdges = () => {
let edges = []
props.data.forEach(hub => {
hub.followers.forEach(follower => {
edges.push({
from: hub.id,
to: follower.id
});
});
});
return edges;
}
// Hooks to update graph state
useEffect(() => setGraphState({nodes: getNodes(), edges: getEdges()}), [JSON.stringify(props.data)]);
return (
<div className="Map-canvas">
<Graph
key={uuid()}
graph={graphState}
options={options}
events={events}>
</Graph>
</div>
);
}
export default Visualization;
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