Lets make a Smiley part 4: React Components and ES6

Let's make a Smiley Face - Part 4

This example shows a smiley face built with React and D3, rendered as SVG. It demonstrates how to compose reusable React components for static shapes: a yellow background circle with a black stroke, two black eye circles, and a mouth drawn as an arc path. The D3 `arc` generator defines the mouth’s inner and outer radii, start and end angles, and stroke width, with positioning handled via SVG group transformations. The code uses React 17, D3 v5, and the `arc` API in a declarative, data-driven layout.

OOlowogoke Seun

Smiley Face Part 4

A React component renders a yellow SVG smiley face with black stroke, two eyes, and an arc-based mouth, centered on a 960 by 500 canvas. The example demonstrates reusable functional components and ES6 syntax within React 18, using the `d3.arc` API to generate the mouth path. D3 v7 provides the arc generator, while React manages the SVG elements. The face is built from primitive shapes: a circle for the background, two circles for eyes, and a path for the mouth, all positioned via a transform group.

KKazSoftwareEngineer

Smiley Face Part IV

A simple smiley face is rendered as an SVG graphic using React components for each facial feature. The background circle, eyes, and mouth are defined as separate reusable components, with the mouth drawn using the `d3.arc` generator from d3-shape. The face is centered by translating a group element, and all positions and sizes are controlled through props and constants. The example demonstrates composing D3-generated paths with React’s declarative rendering style.

GGuus Lammers

Smiley Face Part 1

This example shows a simple smiley face rendered as an SVG using React components, with each facial feature defined in its own ES6 module. The code uses D3’s `arc()` generator to create the mouth path and React Fragments (`<>`) to group the eyes without extra DOM elements. Static props for positioning and radii are passed from the main `App` component, which centers all elements at (480, 250) with a 960×500 viewport. The visualization demonstrates component separation and declarative SVG construction in a React environment.

Ddeebanks77

Let's Make a Face Part IV (React Components & ES6)

A yellow smiley face is drawn as an SVG, with a filled circle for the head, two small circles for the eyes, and an arc for the mouth. The face is built using React components, with the background circle and mouth path defined as separate reusable elements. The mouth is generated using the D3 `arc` function, while the SVG is rendered by ReactDOM. All values are computed from constants for width, height, and offsets, reflecting a component-based approach to structuring the visualization.

JJadeJOy

Smiley Face Part 4

This example draws a classic smiley face as an SVG graphic inside a React component. It uses D3's `arc` function to generate the mouth path, while the head and eyes are simple SVG `circle` elements. The code defines reusable components and applies a yellow fill with a black stroke, positioning all elements relative to the center of a 960×500 canvas. The face is rendered declaratively through React's `ReactDOM.render` method.

Ddanrhymes

Smiley Face Part IV

A React component renders a yellow smiley face as a scalable vector graphic using D3’s `arc` generator to shape the mouth. D3’s `arc` function defines the mouth’s inner and outer radii, start and end angles, while SVG circle elements compose the head and eyes. The code imports a smile.svg image into a header, though the main visualization uses only D3 shapes. The React app mounts to the DOM, positioning all elements at fixed coordinates within an SVG canvas.

DDifan Gu

Smiley Face Part IV - ES6

A smiling face drawn with SVG shapes in React, centered on a yellow circle with black stroke, two eyes, and an arc-based mouth. D3’s `arc` generator defines the mouth path from inner and outer radii with a half-turn angle range, while React components structure the SVG elements. Rendered via `ReactDOM.render` into the `#root` element, using fixed dimensions and computed offsets for facial features.

Ddev-ignacio-h