CODEWITHSUNDEEP
cesiumjsterrain
Jenny
Jenny

Reputation: 7

What is the precision of STK terrain from AGI?

AS we are using STK terrain in CesiumJS, I am wondering what is the precision of the terrain data?

I guess STK is also generated from DEM, and the precision in different parts of the world is definitely different. But is there a specific number? Like DEM data, there is a number like resolution to evaluate the precision. What about it for STK World Terrain?

Upvotes: 1

Views: 334

Answers (1)

emackey
emackey

Reputation: 12448

CesiumJS hasn't been using STK World Terrain in over a year, they switched to their own Cesium-ion-based terrain server. But I believe they seeded it with STK World Terrain (with AGI's permission, as they spun out from AGI) and have been augmenting it little by little since then.

I asked around (internally to AGI) and got this response from someone who works on STK and terrain:

The resolution of the terrain hosted by the STK Terrain Server (now superceded by Cesium ion and GCS) was 3-10m Continential US, 30m between 60N-60S, 1000m otherwise.

So, this means the resolution is variable. Some areas have higher resolution than others, but this should give some idea of the range available.

Upvotes: 0

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