WebGIS directly browses large-scale Osgb format tilt model (20GB+)

Based on the deep fusion technology of Cesium and three.js, a very large-scale oblique photography model is loaded, and the demo data size is about 21GB.

No plug-ins required

No need to convert osgb format

No server-side preprocessing

Support large-scale data

Adjustable performance parameters

Support Cesim.ClassificationType

...

Parse OSGB format files, improved based on open source technology;

Generate three.js object, convert the OSGB parsing result into three.js object;

The key to building PagedLOD scheduling tree lies in the application of RangeList and the calculation of Range;

Request and rendering, traversal Scheduling tree, maintaining build request queue and rendering queue.

Memory: 16G

Graphics card: GTX1650Ti

CPU: Intel Core i7, 6 cores

Display: 2560x1440, 60Hz