Roof-top platform planting pool illustration

Quick answer：

Roof-top platform planting pools are designed to create green spaces on the roofs of buildings. They can include various types of planters or gardening systems that allow for the growth of plants and vegetation. These illustrations typically show the layout, size, and placement of the planters, as well as the types of plants that are suitable for the specific climate and environment of the roof. They are used for architectural and landscape design to visualize green roof solutions.