Force Layout Lab for Node Weight and Line Elasticity

What This Example Builds

This example builds a full-screen force-layout playground around a single root node and a ring of connected child nodes. The graph uses black circular nodes, straight links, a right-side built-in toolbar, and a floating white control window, so the canvas reads like a physics lab instead of a business diagram.

Users can switch the experiment target between nodes and lines, randomize the value range used for tha