Three-dimensional data model

Grey model

Add the elevation attribute to the shp data of the building community profile, and stretch the shp to form the elevation of the building profile (see the example of hypergraph or the example of 3D team).

Tilt photography data model

Tilt photography is a new technology gradually developed in the field of aerial survey in recent years. Compared with the vertical photography data collected by the traditional aerial survey, by adding a number of lenses with different angles, an inclined image with a certain inclination angle is obtained. Using oblique photography technology, high-resolution images of multiple different angles in the same position can be obtained at the same time, and rich side texture and position information of ground objects can be collected. Based on detailed aerial survey data, a series of operations, such as image preprocessing, regional joint adjustment and multi-view influence matching, are carried out to build high-quality and high-precision 3D GIS models in batches. Oblique photography is characterized by beauty from a distance and ugliness from a close look.

3DMAX model

3D Studio Max, commonly referred to as 3d Max or 3ds MAX, is a 3D animation rendering and production software based on PC system developed by Discreet Company (later merged by Autodesk Company). In the scope of application, it is widely used in industrial design, architectural design, engineering visualization, three-dimensional animation, multimedia production, games, auxiliary teaching, advertising, film and television and other fields. 3DMax model is a real representation of the exterior of the building, which can be understood as a set of skin, and it is impossible to view the specific details of the interior of the building.

BIM module