jcksnm

@jcksnm·5 public vizzes

World Population Area Chart

This area chart visualizes world population growth over time, using a filled path to show the trend. The visualization employs D3 v5 with SVG rendering, using `scaleTime` and `scaleLinear` for axes, `area` with `curveBasis` for the smoothed region, and `axisLeft`/`axisBottom` with custom tick formatting. Data comes from a CSV file loaded via `d3.csv`, with population values formatted in billions and years parsed as dates.

May 18, 2020

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Temperature in San Francisco Line Chart

This visualization displays a week of temperature readings in San Francisco using a curved area chart. The SVG rendering shows temperature values over time, with the area fill in maroon and a timeline axis with labeled ticks. The code loads CSV data from a remote VizHub dataset, parses timestamps, and uses d3.scaleTime, d3.scaleLinear, d3.axisBottom, d3.axisLeft, and d3.area with curveBasis to generate the smooth filled shape. The React framework is not directly involved, as the visualization uses plain d3.v5 with a static SVG element.

May 18, 2020

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Cars Scatter Plot

This scatter plot shows the relationship between horsepower and weight for a dataset of cars, with each car represented as a semi-transparent red circle. The chart uses linear scales for both axes, which are labeled and include gridlines. The visualization is built with React and D3 v5, using the `scaleLinear`, `axisLeft`, and `axisBottom` APIs. Data is loaded from a CSV file, and the plot is rendered as SVG elements within a 960x500 canvas.

May 17, 2020

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Let's make a face with D3.js

This example renders a simple, animated face from basic SVG shapes. A yellow circle forms the head, with two dark circles for eyes and rectangular eyebrows that move up and down. The mouth is drawn as an arc using the D3 `arc` function. The animation is created with D3's `.transition()` and `.duration()` methods, which are used to move the right eyebrow. The entire composition is centered and built within a single `<g>` group using D3's `select` and `append` functions.

May 15, 2020

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Shapes with SVG and CSS

This example demonstrates how to create and style basic SVG shapes—circles, rectangles, lines, and paths—using both inline SVG attributes and an external CSS stylesheet. It shows how presentational properties like fill, stroke, and stroke-width can be set directly on elements or inherited from parent `<g>` groups and CSS classes. The visualization uses React to render the SVG elements within an HTML page, with the `.lines` class applying green strokes and rounded line joins to paths, while a group transform scales and translates the shapes.

May 13, 2020