A computer system maintains structure data indicating geometrical constraints for each structure category of a plurality of structure categories. The computer system generates a virtual 3D representation of a structure based on a set of images depicting the structure. For each image in the set of images, one or more landmarks are identified. Based on the landmarks, a candidate structure category is selected. The virtual 3D representation is generated based on the geometrical constraints of the candidate structure category and the landmarks identified in the set of images.

A dimension measurement method includes: extracting a plurality of lines from a plurality of images generated by shooting a target area from a plurality of viewpoints, and generating a line segment model which is a three-dimensional model of the target area that is expressed using the plurality of lines; calculating a dimension of a particular part inside the target area, using the line segment model; and outputting the dimension calculated.

Inventive methods and apparatus for interactive control of a lighting environment. In some embodiments an interactive system for controlling redirectable lighting in a lighting environment may be provided. In some embodiments systems and methods may be provided that enable the display of adjustable lighting parameters in a virtual environment.

A system and method for tracing polygons in a drawing source file. The method includes extracting vector imagery from the source file, creating a planar representation of the vector imagery as a plurality of lines, filtering the plurality of lines to create simplified line art, morphologically dilating the simplified line art to generate a polygonal approximation, calculating geometric difference between the source file canvas bounds and the polygonal approximation to identify contracted polygons, morphologically dilating the contracted polygons to create visual polygons, and filtering the visual polygons according to one or more geometric parameters to identify salient polygons.

A system comprising; analyzing a building model, wherein a set of floor joists are isolated from other assemblies; processing a first set of data associated with the coordinates of the floor joists; processing a second set of data associated with the assembly of the floor joists; creating a set of data associated with the assembly of the floor joist and the coordinates of a set of floor joist members; formulating an assembly of the floor joist, wherein the assembly is a predetermined organization of the floor joists based on the first set of data and the second set of data; calculating the assembly based on a set of limitations, wherein the limitations are based on the shipping vessel; manipulating the assembly, wherein the manipulated assembly is within the limitations of the shipping vessel; and generating a graphical representation of the manipulated assembly.

A system comprising; analyzing a building model, wherein a set of roof trusses are isolated from other assemblies; processing a first set of data associated with the coordinates of the roof trusses; processing a second set of data associated with the assembly of the roof trusses; creating a set of data associated with the assembly of the roof truss and the coordinates of a set of roof truss members; formulating an assembly of the roof truss, wherein the assembly is a predetermined organization of the roof trusses based on the first set of data and the second set of data; calculating the assembly based on a set of limitations, wherein the limitations are based on the shipping vessel; manipulating the assembly, wherein the manipulated assembly is within the limitations of the shipping vessel; and generating a graphical representation of the manipulated assembly.

Various implementations disclosed herein include devices, systems, and methods that generate floorplans and measurements using a three-dimensional (3D) representation of a physical environment generated based on sensor data.

Systems and methods for structure footprint detection from oblique imagery are disclosed, including a computer system configured to receive geo-referenced oblique images; analyze pixels of the images to: identify pixels representing a structure with walls; determine ground locations for the walls, geographic locations and orientations of pixels representing vertical edges of the walls, and relative lengths of the walls to produce horizontal line segments representing the base of the walls and having a relative length and an orientation, the horizontal line segment(s) determined from horizontal edge(s) extending a length between vertical edges above the bottoms of the vertical edges such that the horizontal edge is above the base of the structure; and assemble the horizontal line segments based on their relative lengths and orientations to form a footprint of the structure.

The present technology is directed to visualizing a Wi-Fi signal propagation in 3-D at various heights and locations. The present technology can calculate a radio frequency (RF) propagation pattern for a Wi-Fi access point (AP) based on a RF propagation model for the Wi-Fi AP and overlay the RF propagation pattern for the Wi-Fi AP over a visualization of the building plan to present a 3-D visualization of the RF propagation pattern of the 3-D space. In particular, the present technology can project a plurality of ray-paths in various directions in a 3-D space originated from the Wi-Fi AP and determine whether the ray-paths interface with objects defined in the building plan. The present technology can segment the respective ray-path into contiguous segments of substantially uniform mediums for each ray-path that interface with the objects and determine a RF signal strength at points along the contiguous segments of the ray-paths.

A system for operating a configuration platform. The system comprising a conversion pipeline, the conversion pipeline allowing converting a first set of data associated with a computer-aided design (CAD) system into polygon meshes suitable for rendering of the portion of a monument and configuration data. The system also comprising a content management system, the content management system storing the polygon meshes and the configuration data; and a 3D real-time engine, the 3D real-time engine allowing to determine, based on the configuration data, at least one of the positioning of the monument, the material surface associated with the monument, the material grain direction associated with the monument, the lighting associated with the monument, the annotations associated with the monument, the alternate states associated with the monument and the kinematic sequence associated with the monument; and to render the portion of the monument by the 3D real-time engine.