Terrain Analysis

[sank...@gmail.com]

How to perform visibility analysis on terrain as shown in fig 4.15 in the given link:
https://www.researchgate.net/publication/313103729_GEOPROCESSING_3D_VISUALISATION_OF_LOCAL_TERRAIN_DATA_AND_BUILT_STRUCTURES_IN_OPENSOURCE_WEB_GIS

[Gabby Getz]

Hi,

That abstract seems to layout a workflow for development and the tools to use. Do you have any specific questions about anything specifically related to Cesium?

Thanks,

Gabby

[sank...@gmail.com]

Thanks for the reply Gabby,I want to do analysis on terrain elevations.And visibility analysis on terrain using cesuim.

[Scott Reynolds]

Look at this Sandcastle example for how to get terrain heights using Cesium.sampleTerrainMostDetailed().  You can do something similar to get the heights for points along a route that you could then put into a graph (not a Cesium feature) to show the terrain profile along the route.  Simple visibility analysis would be possible using this technique if you specify enough points along the desired line-of-sight with sufficiently small spacing to capture the roughness of the terrain.

Scott