Generating virtual representations

Abstract

Methods, computer systems and computer programs for generating a virtual representation of an interior space such as a room are provided. Techniques for capturing and normalizing sets of points for polygon mesh generation that utilize augmented reality toolkits are also described. The methods comprise: obtaining a first set of three-dimensional coordinates and at least one further set of three-dimensional coordinates, wherein the first set of three-dimensional coordinates comprises three-dimensional coordinates representing three-dimensional positions of points located on edges of walls of the interior space, and wherein each of the at least one further set of three-dimensional coordinates comprises three-dimensional coordinates representing positions of points located on edges of an extrusion in one of the walls of the interior space; and generating a polygon mesh representing the three-dimensional shape of the interior space, wherein generating the polygon mesh comprises: using the first set of three-dimensional coordinates to determine planes representing the walls of the interior space without considering any extrusions in the walls; and for each wall with one or more extrusions, using the respective determined plane and the respective one or more of the at least one further set of three-dimensional coordinates to determine a plurality of sub-meshes that in combination represent the respective wall excluding the respective one or more extrusions; and combining the plurality of sub-meshes into a mesh representing the wall with the one or more extrusions.