For examples in subsurface here is a paper that has 2 examples (earthquakes and geothermal).
The paper also has supplemental data sets in KMZ and Cesium and a youtube video of global earthquake subsurface visualization.
(3 links included below).
LINKS:
“Supplemental subsurface KMZ & Cesium data sets”
“Paper Geological and hydrological visualization models for Digital Earth representation”
“Cesium video of global earthquake subsurface visualization”
Hello all,
When I look at http://www.hitechmex.org/cesium/Apps/Sandcastle/gallery/GeoThermal_SubSurface.html
and when I zoom in to the red bullets, I see three groundlevels. is that correct ? If so, which one is really height = 0 in Cesium or the groundlevel in real situation (,which isn't necessarily height = 0 in Cesium) ?
I doubt if we can present something like this to our customers. Important for us is the capability of combining above ground infrastructure and buildings with subsurface infrastructure in one view. Is it possible to place buildings on top of the GeoThermal_SubSurface model ?
What Cesium version has been used for this GeoThermal_SubSurface model ? Is it a special version or just the common one ?
Greetings,
Barent Brouwers
Yes you are correct you see 3 levels. In the Earthquake model the outer most is at the surface of the earth. The next inner level is 300Km below the surface and the deepest one is at 750Km below the surface. The top 2 layers consist of a translucent earth and vector outlines of all the countries of the world that can be selected to help orientation when navigating below the surface. For a better explanation here is a free link to the paper:
http://authors.elsevier.com/a/1TDh3MMTPPHd5
The link above is valid and free until August 6, 2016 after this date use this link
http://www.sciencedirect.com/science/article/pii/S0098300416301509
In the GeoThermal model it only has vector outlines of the counties of Texas. The outer most layer is at 0K (surface), the next layer is at 10,000 feet below the surface and the last layer is at 20,000 feet below the surface. In this model no translucent layers are used. What you see as blue is the outer atmosphere.
It is important to note that Cesium does not yet allow “non selection of objects” so to go below the translucent layers in the earthquake model one needs to turned it off via the upper left menu.
This will be fixed in future versions of Cesium. The version of this example a standard Cesium 1.16.
Any 3D structure can be placed at any level in both models.
Hope this explanation helps,
Reuben
I just wanted to chime in to see where subsurface rending is in Cesium. I’m interested in displaying underwater data.
Hey Gerry,
We did just recently add support for underground rendering in the June release of CesiumJS: https://cesium.com/blog/2020/06/16/visualizing-underground/.
Underwater isn’t supported yet but on the roadmap!
Omar, thanks for that information. That will certainly help with researching under water rendering. I also found the pull request (#6047) for underwater rendering, even though it’s a few years old, that may shed some light on things for me…