COVID-19 graphs on Observable

Kristina Maceković — Tue, 31 Mar 2020 09:40:37 +0000

Description

I've wanted to check out Observable for a while, but it looked pretty intimidating whenever I started. Enter COVID-19 and this straightforward tutorial and suddenly I had an interesting topic and some tools under my belt to actually do it. I used Vega-lite for visualisations, JS and d3.js for some data wrangling. Data is pulled via the awesome COVID-19 API.

Here's the link to the results:
COVID-19: Pick a country to display data

The page displays following results:

a line chart of cases over time
a bar chart of new cases compared to the previous day
the most recent summary of cases

These results are presented based on the following options you can select:

country you want to see data for
type of cases you want to see (confirmed, recovered, deaths)
the scale you want to use for the y-axis of the line chart

Nice Resources I Found Along the Way

Data manipulation, cleaning, and processing in JavaScript:
Website with tutorials on data wrangling with JS (mostly d3.js). I found it while I was researching how to aggregate data by an object property.

Simple Spinning Animation with CSS

Kristina Maceković — Wed, 18 Mar 2020 11:08:38 +0000

I wanted to start exploring animations using CSS so I started with this simple example and wanted to share! VSCode has a very good MDN reference and suggestions concerning different animation functions. If you want to experiment more with bezier curves, check out cubic-bezier.com.

Without further ado, here’s the code:

<!DOCTYPE html>
<html lang=“en”>
  <head>
    <meta charset=“UTF-8” />
    <meta name=“viewport” content=“width=device-width, initial-scale=1.0” />
    <title>Practicing CSS Animations</title>
    <style>
      :root {
        —-inner-color: salmon;
        —-border-color: saddlebrown;
        —-text-color: white;
      }

      body {
        padding: 200px;
      }

      .box {
        background-color: var(--inner-color);
        border: 5px solid var(--border-color);
        height: 300px;
        width: 300px;
        border-radius: 10px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: sans-serif;
        font-size: 32px;
        color: var(--text-color);
      }

      .box:active {
        animation: spin 3s infinite;
        animation-timing-function: cubic-bezier(0.68, -0.55, 0.265, 1.55);
      }

      @keyframes spin {
        0% {
          transform: rotate(0deg);
        }
        100% {
          transform: rotate(360deg);
        }
      }
    </style>
  </head>
  <body>
    <div class="box">
      <p>Hold meee</p>
    </div>
  </body>
</html>

Check out the result here: CodePen - Spinning Box

Forem: Kristina Maceković

COVID-19 graphs on Observable

Description

Nice Resources I Found Along the Way

Simple Spinning Animation with CSS