Fork of Circles with D3 + Zoom
This example displays a collection of colored circles scattered across a light green canvas. The visualization demonstrates the D3 general update pattern and method chaining to create and style each circle based on data attributes. Using D3's `select`, `join`, and `attr` methods, circles are rendered with specified x, y, radius, and fill properties. The example also incorporates D3's `zoom` and `zoomIdentity` functions to enable interactive pan and zoom controls on the SVG content.