Cheap Tricks for Interaction

Cheap tricks for interaction

This example displays a world map using a natural Earth projection with countries filled in light green on a blue sphere. It demonstrates a simple interaction technique where hovering over any country changes its fill to red, implemented entirely through CSS `:hover` rules. The visualization loads geographic data from the World Atlas TopoJSON collection and renders it using D3 v5’s `geoPath` and `geoNaturalEarth1` projection.

RRoger Yu-Hsiang Lo

Cheap tricks for interaction

This example shows a world map rendered with D3’s `geoNaturalEarth1` projection and `geoPath`, where hovering over any country turns it red. It uses TopoJSON data from the `world-atlas` package, joined with a TSV file to add country names via `iso_n3` IDs. The map includes a blue sphere background, and each country’s `<path>` element contains a `<title>` child for tooltips, enabling interaction through CSS `:hover` styling.

CChristine Lanser

Cheap Tricks for Interaction

This example displays a world map using a natural Earth projection with countries filled in light green and oceans in blue. It uses the D3 library’s geoPath and geoNaturalEarth1 projection to render the map, and TopoJSON’s feature function to convert geographic data from world-atlas TSV and JSON files. The interaction is a simple hover effect that turns countries red when the mouse passes over them, demonstrating a "cheap trick" for user feedback.

KKumhee

Cheap Tricks for Interaction

This example shows a world map highlighting countries in light green on a blue sphere, with a red hover effect on individual countries and zoom-and-pan interaction. It uses D3 v5 with d3.geoNaturalEarth1 projection, d3.geoPath, and d3.zoom to enable the viewport transformations. Country boundaries come from the World Atlas TopoJSON dataset, while country names are matched via the accompanying TSV file. The map renders as SVG, with hover tooltips provided by native `<title>` elements.

Tthanhtrant219

Cheap Tricks for Interaction

This example displays a world map rendered with the natural Earth projection, showing countries as light green regions with black borders. Interactive zooming and panning are enabled through d3.zoom, while hovering any country turns it red using CSS. The map is drawn as SVG paths built with d3.geoPath and d3.geoNaturalEarth1, with country names loaded from a TSV file and geographic boundaries from TopoJSON data.

KKevinw97

Cheap tricks for interaction

This example displays a world map using a natural Earth projection, with countries rendered as green SVG paths with black strokes against a dark blue sphere. Hovering over any country turns it red, providing a simple interaction cue. The visualization is built with D3 v5, using `d3.geoPath` and `d3.geoNaturalEarth1` for geographic projection, while geographic data comes from the TopoJSON world-atlas countries-110m dataset, which is parsed with `topojson.feature` and loaded via `d3.json`.

Eestulo

Cheap Tricks for Interaction

This example shows a world map rendered with D3 v5 and TopoJSON, displaying country boundaries and names as tooltips. The map uses a natural Earth projection via `d3.geoPath` and `geoNaturalEarth1`, with countries filled in light green and a blue sphere background. Loading geographic data from the world-atlas package, the visualization adds a simple hover interaction: CSS changes the country fill to red on mouseover. Country names are joined to the geometry using ISO numeric codes from a TSV file and displayed via SVG `<title>` elements.

LLuce Liu

Cheap Tricks for Interaction

This example visualizes a world map using a natural Earth projection, where each country is rendered as a light green SVG path with a black stroke. Hovering over a country changes its fill color to red, and a tooltip displays the country name loaded from a TSV data file. The visualization uses `d3.geoPath` and `d3.geoNaturalEarth1` for map projection, `topojson.feature` for geographic data conversion, and `d3.zoom` with an event transform to enable interactive pan and zoom. The map data comes from the world-atlas package, with the sphere filled in dark blue.

EEdoardoRegini