In an investigation phase in a new project, I am considering using Cesium. The purpose here is to do visualisation of TIN (I guess in gltF format) but also calculation against it(height calculation, volumes difference, cross sections) .
While it seems Cesium handles very well 3D visualisation I am still wondering about the calculation part as it seems that a model is loaded as a single element and and not as a scene, Am I right here?. So if I have a gltf containing a set of surfaces, point and lines, I can surely visualize it, but there is no a way to access to specific line unless I define all the different elements in a separate file.
In addition it seems the geometry itself is not accessible so if I would not be able to say find a height a given coordinate.
So my question is to know if Cesium would be adapted or if I should consider another approach (say Three + Cesium as explained in the tutorial).
Thanks in advance,