The example displays a collection of primitive shapes and line types in an SVG canvas using D3.js v4. It shows circles, rectangles, and various path elements, including arcs drawn with the `arc()` function and lines generated by `d3.line()` and `d3.path()`. The visualization uses D3’s selection, data-binding with `.datum()`, and data-driven loops via `.data()` and `.enter()` to create elements from an array of values. The SVG background is green, with a GeeksforGeeks header, and all shapes are rendered statically without interaction.