Unmanned aerial surveys (UAVs) greatly solve the demand for high-definition maps in the fields of housing rights confirmation, land survey, and power inspection. So how to put 3D models, orthophotos, laser point clouds, digital elevation models and other data into your mobile phone or tablet for offline viewing and operation when working outdoors?
This requires the use of [4D Light Cloud - Offline Version], which is an offline geospatial data management platform that supports offline display and editing. In the platform, users can view and edit geospatial data such as oblique models (.osgb), laser point clouds (.las), orthophotos (DOM), digital elevation models (DEM), vector data (SHP), artificial models (.obj, .dae, .fbx) and more.
1. Data import
Before importing geographic data to the app, you need to perform preprocessing such as slicing. The work is completed by the [Four-Dimensional Light Cloud Geographic Data Processing Platform]. First, contact our pre-sales staff to get the installation package. After the installation is completed, insert the dongle and run, and the operation interface is as follows.
Import the data to be processed and set it accordingly, click Submit to complete the processing, and copy the data results folder to the project directory in the APP, as shown in the following figure:
For example, for the oblique photography model, the resulting data folder is as follows:
(The name of the achievement folder can be modified)
The internal files of the results data folder are organized as follows:
(The internal files of the folder cannot be deleted)
After the data is copied, start the APP, and you can view all the imported data entries on the [Data] page (this page is the data warehouse of the platform).
2. Data display
When viewing data in an offline environment, you can switch performance modes and use features such as positioning, layering, rendering, measurement, viewing, and more.
In addition, you can view and edit data information, and save that data directly as a scene.
3. Scene editing
After the import of various spatial data is completed, the application of the data can be carried out - scene construction. Click the [Scene] button at the bottom of the page, click the [+] button in the upper right corner to create a new scene, add the required data source (from the data warehouse), and complete the construction of the data base.
When building a scene, you can use layers, plotting, analysis, editing, viewing, positioning, and other functions.
4. About Updates
Please keep an eye on the official website of the product, the updated installer will be published on the official website, and the user can overwrite the installation.
Do not uninstall and install as this will result in the loss of existing data or scenes.