fresh block
A single static circle is drawn on a blank SVG canvas using D3 v4. The code selects the body, appends an SVG element with fixed dimensions, and places the circle at coordinates (300, 300) with a set radius, though several attribute chains remain incomplete. The example demonstrates the basic structure for creating simple geometric shapes with D3’s selection and attribute methods, relying on the SVG namespace for rendering. No interaction, data binding, or scales are involved, making it a minimal starting point for understanding D3’s core drawing syntax.