SVG Fundamentals
This example demonstrates fundamental SVG shapes—circles, lines, and paths—rendered on a static 960×500 canvas. Overlapping red and green circles show layering, while path elements illustrate coordinate-based drawing commands. The code uses plain SVG markup within an HTML page, with D3 v7 loaded via a script tag but not actively driving any dynamic behavior. The visualization focuses on the raw vector graphics API, showing how basic geometric primitives combine to form static illustrations.