Fork of WebCola Small Groups!
A fork of the WebCola small groups example visualizes force-directed graph layout with interactive node dragging. Seven rectangular nodes and eight links are arranged into overlapping, color-coded group rectangles using the cola.d3adaptor for constraint-based layout. Nodes can be dragged to fix their positions, and double-clicking releases them, allowing users to manipulate the network structure. The example uses D3 v4 with SVG rendering, reading node, link, and group data from a JSON file, and leverages cola’s drag and tick events to update positions live.