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When brainstorming and working on bubble diagrams its a great idea to do a spider diagram like above and below to show what rooms and spaces are needed in the space. This really helps organise the space in an orderly way and also in making sure you include everything that's needed. There are some other examples below.

Below shows a sun diagram. That shows the direction of the sun and how when sun bounces off a building or glass or whichever is in its light range it can make it bounce to a different area.