Cheap tricks for interaction

Cheap Tricks for Interaction

This example shows an interactive world map that supports zooming and panning, with country names revealed on hover. It renders geographic data using D3’s `geoNaturalEarth1` projection and `geoPath` into SVG, with country boundaries from TopoJSON and names from a TSV file. The zoom behavior is implemented via `d3.zoom`, applying a transform to a group element. Hover effects increase stroke width via CSS, while `title` elements display each country’s name.

DDimanjan

Cheap tricks for interaction

This example shows a zoomable and pannable world map with hover highlighting on individual countries. It renders geographic boundaries using `d3.geoPath` with a `geoNaturalEarth1` projection, drawing country shapes from TopoJSON data and matching country names from a TSV file. The map supports interactive zooming through D3's `zoom` behavior, which applies transformations to the SVG group element. Country polygons fill with steel blue, and hovering changes their fill to light blue via CSS.

1123fischer

Cheap Tricks for Interaction

This example demonstrates interactive zooming and panning on a natural Earth projection map of world countries, with hover highlighting that changes each country’s fill to red. The map is rendered as SVG paths using `d3.geoPath` and `geoNaturalEarth1`, with country boundaries loaded from TopoJSON world-atlas data and names joined from a TSV file. Interaction is handled through `d3.zoom`, which applies a transform to a group element, while CSS `:hover` rules trigger the color change on each country.

LLinkous

Cheap Tricks for Interaction

This example shows a world map with countries filled in light green, rendered using a natural Earth projection in SVG. It demonstrates simple pan-and-zoom interaction by attaching a `d3.zoom` handler to the SVG, which applies the current zoom transform to a group element containing all country paths. The map loads country boundaries from TopoJSON in the world-atlas package and joins them with names from a TSV file, adding a `<title>` tooltip per country. The code uses `d3.geoPath`, `d3.geoNaturalEarth1`, and `d3.zoom` from D3 v5.

Qqhu11

Cheap Tricks for Interaction

This example demonstrates interactive pan and zoom on a natural Earth projection map of world countries. Built with D3 v5, it uses `d3.zoom` to apply SVG transforms and `d3.geoPath` with `geoNaturalEarth1` for rendering. Country boundaries come from TopoJSON world-atlas data, with names matched via a TSV file and displayed as `<title>` tooltips. Hovering highlights a country in red, while the sphere background is blue.

MMukund Khandelwal

Cheap tricks for interaction

This example demonstrates a world map with zoom and hover interactions. Using D3’s `geoNaturalEarth1` projection and `geoPath`, it renders country boundaries from TopoJSON world-atlas data, with country names loaded via TSV. A D3 zoom behavior on the SVG applies a transform to the map group, enabling pan and scale. Hovering over a country changes its fill to red via CSS, highlighting the selected region.

Nnsadath

Cheap tricks for interaction

Nnsadath

Cheap tricks for interaction D3 version 5

This example shows an interactive world map where hovering over a country highlights it in red, and zooming and panning the view is supported via mouse or touch gestures. The map is rendered using SVG with the Natural Earth projection, and country boundaries are drawn from TopoJSON data sourced from the world-atlas package. The implementation uses d3.zoom to handle transformations on a group element, d3.geoPath to generate the country paths, and d3.tsv to load country names for tooltips. Interaction is driven by CSS hover rules and the zoom event listener.

PPiotr Paszek