caption: a diagram that shows the building example
exif: {"Image DocumentName": "Building ExampleWe will build a BSP tree, in 2D, for a 3 room building. Ignoring doors. Splitting edge order is shown.", "Image ImageDescription": "Back side of edge is side with the number", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}