What led to the decision for the two distinct chart elements to merge into a single container?

In the process of creating a dashboard using React.js and d3.js, I encountered an interesting issue that perplexed me for quite some time.

Below is the Scatterplot.js code written in d3.js:

import React, { Component } from "react"
import * as d3 from "d3"
import { ceil, floor } from "lodash"
import "./scatterplot.css"

export default class Scatterplot extends Component {

  constructor(props) {
    super(props)
    this.state = {
      name: "Level 1",
      category: "Status",
      yAxisAttribute: "YoY Growth Rate",
      xAxisAttribute: "Social Popularity",
      width: 700,
      height: 500,
    }
    this.chartRef = React.createRef()
    this.drawChart = this.drawChart.bind(this)
  }

  // Rest of the code remains the same ...


The provided code generates a chart that appears like this:

https://i.stack.imgur.com/nOFLg.png

The challenge arose when attempting to integrate the same chart component (Scatterplot.js) into App.js within React.js. Here is the content of App.js:

import React, { Component, Fragment } from "react"
import "react-bulma-components/dist/react-bulma-components.min.css";
import { Section, Container, Heading, Columns, Box } from "react-bulma-components"
import Scatterplot from "./charts/Scatterplot.js"
import "./App.sass"
import "./App.css"

export default class App extends Component {

    state = {
        passionPoint1: null,
        passionPoint2: null,
        passionPoint3: null,
        isLoading: true
    }

    // More code follows ...

The resulting dashboard looks as expected. However, replacing certain components resulted in unexpected merging of charts instead of individual placement across defined sections. This led to frustration, seeking insights and solutions to rectify these layout conflicts.

I explored alternative frontend frameworks with similar outcomes, querying different data sources while experimenting with element IDs to isolate elements without success. Seeking clarity on the root cause of this behavior and potential resolutions to achieve the desired output remains crucial.

Answer №1

d3.select(".Chart") will target the element that has the 'Chart' class. Keep in mind that this is not limited to your component. You may need to explore alternative methods for selecting the element. Consider using a ref:

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.myRef = React.createRef();
  }
  render() {
    return <div ref={this.myRef} />;
  }

  drawChart() {
    ...
    const svg = d3.select(this.myRef.current)
      .append("svg")
    ...
  }
}

Answer №2

let svgSelection = d3.select(".ChartContainer")

It is recommended to select elements based on a more specific selector, such as the element with the class ChartContainer, instead of just selecting the first element with the class Chart in the DOM.

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