ol.ritter@web.de

@OliverRitter·7 public vizzes

Fork of Spinning Globe

A spinning orthographic globe displays country boundaries from the visionscarto-world-atlas TopoJSON dataset, with a graticule and sphere outline. Using `d3.geoOrthographic` and `d3.geoPath`, the projection rotates continuously via state updates, reducing the longitude by 0.2 degrees per frame. The animation is driven by `requestAnimationFrame` calls within a reactive state management system, while `topojson-client` converts the TopoJSON features for rendering.

Feb 22, 2024

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Fork of Fork of Spinning Globe

This example shows an animated orthographic projection of the world, with countries rendered as filled paths and a graticule overlay, all rotating in three dimensions. The animation is driven by `projection.rotate` from `d3.geo`, adjusting the view based on state changes. It uses `d3.geoPath` to project the map, `d3.geoGraticule` for the grid, and fetches country boundaries from the `visionscarto-world-atlas` as TopoJSON, which is converted to features via `topojson-client`. The rotation is updated each frame using `requestAnimationFrame` to create a spinning globe effect.

Feb 22, 2024

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Fork of Spinning Globe

This example presents a spinning globe, rendered as an orthographic projection that continuously rotates to showcase Earth's geography. The visualization uses d3-geo's `geoOrthographic` projection and `geoPath` to draw country outlines from TopoJSON data loaded from the visionscarto-world-atlas, along with a graticule and sphere outline. An animation is driven by `requestAnimationFrame`, which updates the projection's rotation state to create the spinning effect. The code is structured with a main module handling data fetching and state management, while a separate map module draws the geographic elements.

Feb 22, 2024

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Fork of Sine Wave Circles

A row of 30 circles animates vertically to form a traveling sine wave across the SVG canvas. Each circle’s y-position is computed from the sine of its index, producing a smooth, continuous oscillation over time. The visualization uses D3 v7’s `range` to generate the circle data, `timer` to drive the animation loop, and `Math.sin` to calculate wave displacement. All elements are rendered as SVG `<circle>` nodes, with the wave frequency fixed and the height normalized relative to the viewport.

Nov 3, 2023

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Fork of Fork of Fork of Fork of ice8-vignesh

This interactive globe visualizes world countries and lets users switch between orthographic, Mercator, and Albers USA projections by clicking on a country. Dragging rotates the orthographic globe, while the d3.zoom handler provides pan and zoom transformations. The visualization uses d3.geoPath with TopoJSON data from world-atlas, rendering SVG paths with graticule overlays and animated transitions when changing projections.

Nov 1, 2023

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Fork of Fork of Sine Wave Circles

A row of 30 circles animates vertically in a sine wave pattern, with each circle’s vertical position controlled by a time-based oscillation. The circles are rendered as SVG elements using D3 version 7, with their `cx` positions evenly spaced across the 960-pixel-wide canvas. The `cy` attribute is updated each frame via D3’s `timer` callback, computing a sine function of the circle index, frequency, and elapsed time. The visualization is a direct port of a Processing example, adapted to ES6 and driven by the `d3.range` and `d3.select` APIs.

Jul 11, 2023

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Fork of Sine Wave Circles

A sine wave is visualized as a horizontal row of 30 circles whose vertical positions oscillate over time, creating a smooth wave-like motion across the SVG canvas. The code uses D3.js v7 to bind a numeric range to circle elements, computing each circle’s y-coordinate from a sine function of its index plus a time offset from `d3.timer`. The amplitude is scaled to the SVG height, with a fixed radius derived from the width and circle count. This D3 adaptation mirrors the original p5.js example, rendering animated circles without any external data source.

Jul 11, 2023