d3.tree - A Family Tree

D3.js

A family tree (genealogy) diagram renders hierarchical data from a JSON file (genealogy5.json) as an SVG. The visualization displays individuals as nodes connected by curved paths, with text labels indicating names and branch designations. The code uses D3.js v5's tree layout (`d3.layout.tree`) and diagonal path generator (`d3.svg.diagonal`) to position and draw the connections. Data transformation with `d3.nest()` restructures the flat JSON into a nested hierarchy before rendering nodes and links.

Aayd0122344

Tree

This example shows a simple hierarchical family tree with three generations, drawn in a bottom-to-top orientation using the D3.js v3 library. It demonstrates the `d3.layout.tree` layout and `d3.svg.diagonal` for rendering curved link paths, while nodes appear as circles with text labels for each person’s name. The data comes from a local `graph.json` file containing a nested “Father,” “Son,” and grandchildren structure. The SVG output is styled with minimal CSS, using a light gray border and black links, and the layout is positioned within a fixed margin and size.

CCoola85

Family tree - trial

This family tree visualization displays a hierarchical genealogy with names and birth years, using a horizontal tree layout where each node represents a family member and links show parent-child relationships. The example builds an interactive SVG graphic using D3 v5 APIs including `d3.tree`, `d3.hierarchy`, `d3.linkHorizontal`, and `d3.zoom`. It loads family data from an external JSON file, with text labels whose font size decreases at deeper levels. The visualization supports panning and zooming through the zoom behavior, while ancestor nodes are centered and descendants are left-aligned.

AAce

Family Tree

This interactive family tree visualizes genealogical connections using a parent-child hierarchy. Built with D3.js v3, it renders the structure as an SVG diagram with rectangular nodes and labeled links, supporting zoom and drag interactions. The data from `family-data.json` is loaded via `d3.json()`, and the layout is computed using `d3.layout.tree()`. Node colors vary by type, and each node includes a link label with directional information.

RRadhakrishna246

Family Tree

A family tree visualization displays hierarchical parent-child relationships across four generations, with nodes colored by depth and labeled with character names. Each connection animates from a horizontal line into a diagonal link as the tree expands. The implementation uses D3 v6’s `d3.stratify()` to build the hierarchy from flat data and `d3.tree()` to compute layout positions, while SVG circles, text, and paths are rendered with transitions on `attr` for smooth node growth and link drawing.

LLG0498

Family Tree

This example shows an animated family tree built with D3.js, using a hierarchical layout to display generations from a root ancestor down to descendants. Each person appears as a labeled node connected by curved bézier links, with nodes expanding and collapsing on click. The visualization loads static JSON data and renders it as SVG, using the D3 tree layout, diagonal path generator, and transition animations to smoothly reveal branches as users interact.

Aavinash021997

Family tree using d3.js

This example displays a family tree as a node-link diagram rendered in SVG, with color-coded nodes indicating generational depth and curved paths connecting parents to children. The visualization uses d3.stratify() to structure flat parent-child data and d3.tree() to compute node positions within an 850x300 layout. Circles represent individuals labeled with names, while the code manually constructs cubic Bézier path strings for links and applies level-based fill colors via a custom getColor function.

Ss-pranathi

Family Tree

This example displays a family tree as a hierarchical node-link diagram, with nodes colored by generation and green curved links connecting parents to children. The visualization renders in SVG and uses `d3.stratify()` to convert flat parent-child data into a hierarchy, then applies `d3.tree()` to compute the layout. Node circles, connecting paths, and name labels are appended to the SVG using data-bound selections, with custom bezier curves drawn for each link.

TTejaswi@3271