What is the meaning of Groundplan?

A diagram showing the physical layout of a set, especially the placement of structures on the stage, as opposed to items on the walls or suspended from the ceiling.

A diagram, usually to scale, showing the layout of the ground level of a building or other physical structure; floorplan.

A framework or pattern showing the form of something, without all the details.

A hypothetical anatomical form from which members of a clade are adaptations.

Source: wiktionary.org