ztawil

@ztawil·5 public vizzes

Cars Scatter Plot

This scatter plot visualizes the relationship between horsepower and weight for a dataset of cars. The D3.js code (v5) loads auto-mpg data from a CSV file, parses the numeric columns, and renders circles with a semi-transparent steelblue fill. Axes are customized using D3’s `axisBottom` and `axisLeft`, which draw gridlines via negative tick sizes. Linear scales with `.nice()` set the plot’s domain and range, while SVG elements are managed through D3 selections and appended within a margined group.

Sep 21, 2020

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Scatter Plot

This scatter plot displays the population of the top 10 most populous countries using data from the 2018 United Nations World Population Prospects estimate. It shows each country as a circle positioned by population on the x-axis and country name on the y-axis. The visualization uses d3.scaleLinear and d3.scalePoint for scaling, d3.axisLeft and d3.axisBottom for axes, and renders with SVG. The code also customizes axis tick formatting and removes axis domains for a cleaner appearance.

Sep 21, 2020

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Making a Bar Chart

This bar chart displays the top 10 most populous countries using 2018 United Nations population estimates. The visualization orders countries along a vertical band scale with horizontal bars representing population values, using a linear scale. Customized axes include abbreviated tick labels (e.g., “B” for billions) and grid lines. The code uses d3.csv, scaleLinear, scaleBand, axisBottom, and axisLeft within D3 v5, rendering as SVG with styling from an external stylesheet.

Sep 13, 2020

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Let's make a face with D3.js!

An animated smiley face is built from basic SVG shapes, with eyes that blink and eyebrows that raise and lower in a looping transition. The example demonstrates fundamental D3.js DOM manipulation by selecting the SVG canvas, appending a group, and positioning circles, rectangles, and a path for the mouth. Using chained `transition()` calls, the code animates the eyebrow’s transform attribute and the eye’s radius over two-second durations. The mouth is drawn with D3’s `arc` generator, and all elements are centered via SVG group transforms.

Sep 8, 2020

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Let's make a face with D3.js!

This example creates a smiley face whose eyebrows move, demonstrating fundamental DOM manipulation with D3.js. The face is drawn as SVG elements within a 960-by-500 canvas, and the animation cycles the eyebrows' positions through a looping interaction. The code uses D3’s selection and transformation methods to update the eyebrow elements’ attributes dynamically, relying on the `d3` library (v5.9.2) loaded from a CDN, with the page styling defined in a separate CSS file. The visual output is rendered entirely in vector graphics, and the movement is driven by JavaScript logic in the bundled script.

Sep 7, 2020