force graph with zoom and drag

Force-Directed Graph with Drag/Zoom/Pan/Center/Resize/Labels/Shapes/Filter/Highlight

This interactive force-directed graph displays network data with draggable nodes, zoom and pan controls, and double-click-to-center functionality. Nodes vary in size, shape, and color based on properties like score and type, with text labels that avoid occlusion. The visualization supports filtering by node shape, score, and link strength, plus hover highlighting of first-order neighborhoods and click-to-fade effects. Built with D3 v3, it uses d3.layout.force for simulation and d3.behavior.zoom, rendering as SVG with data loaded from a JSON file.

FFrissAnalytics

Navigate and Zoom around graph

This example demonstrates an interactive graph visualization that users can navigate by panning across the background, zooming with the mousewheel, and dragging individual nodes. A force-directed layout, powered by `d3.layout.force`, positions and animates the nodes and links, with SVG rendering for all elements. Middle-clicking on the background adds new nodes at the cursor’s location, while buttons freeze, thaw, or fit the entire graph to the viewport. The zoom behavior uses `d3.behavior.zoom`, and the fit function computes the graph’s bounding box via `getBBox` to adjust the view transform.

FFrissAnalytics

Drag & Zoom II

This example demonstrates a zoomable SVG canvas containing two thousand circles arranged in a phyllotaxis pattern, where users can click and drag on the background to pan the view or drag individual circles to reposition them. The visualization combines d3-drag and d3-zoom, using the `d3.zoomIdentity` transform to update the group’s `transform` attribute during zooming, while the drag handler updates each circle’s `cx` and `cy` attributes directly. Rendering relies on SVG’s built-in hit-testing and coordinate transformation, avoiding the need for manual redraws or complex event logic.

Mmbostock

Fork of Zoomable and Draggable Circles with D3-Drag and D3-Zoom

This example demonstrates draggable, zoomable circles rendered as an SVG visualization. Users can drag individual circles to reposition them and zoom or pan the entire scene using mouse or touch interactions. The visualization uses D3’s `drag` and `zoom` behaviors, with a state management pattern that updates circle coordinates and the group transform on interaction. Initial circle positions, sizes, and colors are hardcoded as static data, while the `d3.select`, `join`, and `attr` methods handle dynamic rendering and updates.

AAl Piepho

Navigate and Zoom around graph

This interactive graph visualization uses a force-directed layout to arrange nodes connected by links. Users can pan by clicking the background, zoom with the mousewheel, and drag individual nodes. Middle-clicking a location adds a new node at that point. The d3.v3 library provides the force simulation, zoom behavior, and drag interactions, while nodes and links are rendered as SVG elements. The graph displays a network with labels on each node, and buttons allow freezing, thawing, or fitting the graph to the viewport.

FFrissAnalytics

Example of zoom and drag in d3 v4.

This example demonstrates how to combine zoom and drag interactions on SVG circles in d3 v4, solving the issue where dragged elements misalign under a zoom transform. It shows 50 randomly positioned circles that remain draggable and correctly track the mouse even when the view is zoomed. The code uses `d3.drag()` and `d3.zoom()` handlers, with a custom drag function that reads the current scale from the circle’s transform attribute to adjust the mouse coordinates. Rendering is done via SVG elements, and the data consists of random x/y positions generated with `d3.range`.

AAlainRo

Fork of D3 Zoom

This example demonstrates interactive zooming and panning on an SVG canvas. A group of circles connected by lines, generated from trigonometric functions in `utils.js`, responds to mouse wheel and drag gestures through the `d3.zoom` API. The zoom behavior applies a scale transform to the container group, respecting a scale extent between 0.5x and 4x. The SVG output is created with the `select` and `append` methods from the `d3` v7 library.

KKhanin Sisaengsuwanchai

Drag + Zoom

In this example, dots loaded from a TSV file are positioned in an SVG scatterplot with a light grid. Users can drag individual circles to move them, while clicking and dragging on the background pans the view, and the mousewheel zooms the entire scene. The code combines `d3.behavior.drag` and `d3.behavior.zoom`, using `stopPropagation` in the dragstarted handler to give dragging precedence over panning. Both behaviors update the container's transform attribute via the zoom event's translate and scale values, with dragged circles updating their cx and cy attributes.

Mmbostock