maber77

@maber77·2 public vizzes

Let's make a face with D3.js!

This example demonstrates basic DOM manipulation with D3.js by building a static smiley face from SVG shapes. It draws a yellow circle for the head, two black circles for the eyes, and an arc-generated mouth using the `d3.arc` API with specified inner and outer radii. The code highlights fundamental selection and attribute-setting patterns, such as `select`, `append`, and `.attr`. Although the title suggests eyebrows that move, the provided code only renders the face without any animated or interactive behavior.

Mar 23, 2020

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Let's make a face with D3.js!

A smiling face built from SVG shapes animates its eyebrows up and down in a looping transition. The example constructs the face from basic geometric elements—a yellow circle for the head, two small circles for eyes, rectangles for brows, and an arc path for the mouth—centered via a translated group. Using D3 v5, the code applies chained `transition()` and `.attr()` calls to move the eyebrow group repeatedly, while the `d3.arc()` helper generates the mouth’s curved outline. The rendering relies on SVG appended directly to the page’s `<svg>` element.

Mar 23, 2020