1 OverviewTraditional land and resources information management mainly uses software platforms such as ArcGIS, MapInfo, and MapGIS, combined with databases such as Oracle and SQLserver, to abstractly reflect the real world, better at accessing and manipulating vector data, and requiring certain professionalism of operators . However, with the in-depth application of GIS, users are more demanding to restore reality in a three-dimensional scene. The traditional single-factor management method cannot meet the current management needs, and it is necessary to achieve a two-dimensional to three-dimensional transformation. Feiyan's three-dimensional land information platform is a new geographic information application platform that combines multiple platforms and multiple data to realize the expression of the surface and shape of objects to the internal structure and meet the needs of three-dimensional observation, processing and analysis.
1) Use BIM and 3D solid models to realize the expression from the surface and shape of the object to the internal structure expression
2) New types of data (tilt, BIM, laser point cloud) are merged with traditional data (image, vector, terrain, fine model) to improve the modeling accuracy
3) 3D GIS application based on WebGL and B / S architecture4) Multi-platform integration, cross-platform new applications
Aerial photogrammetry is generally low altitude flight, which is easy to operate in airspace and will not be affected by extreme weather. At the same time, it is not limited to the needs of take-off and landing sites. It only needs to select a relatively flat site for take-off and landin...
As we all know, aerial photogrammetry technology is playing an increasingly important role in urban planning and construction. Moreover, compared with the traditional topographic survey technology, aerial photogrammetry technology has the advantages of small volume, light weight, ra...
After the LiDAR data is obtained, the data can be post-processed only after data preprocessing. After the data preprocessing, there is a data checking software to conduct a preliminary check on the data results. The general data format check has the follo