用
https://github.com/CesiumGS 因為opensource and free ?
CesiumGS is the organization behind CesiumJS, an open-source JavaScript library for creating world-class 3D globes and maps in a web browser.
Directly loading and processing the entire database in the browser: If you try to fetch and process millions of individual records from a database directly within the CesiumJS application, it will likely be very slow and potentially crash the user's browser. This is generally not the intended way to use CesiumJS with large datasets.
有冇IT人可以講下