1. A concise explanation of the problem you’re experiencing.
this is not a Problem it is a question
Does anyone have experience what precision a coordinate pick has depending on the used data (Terrain) and the Settings (zoom, …)
Normally in photogrammetric Point-measurement you will get a precision in objekt-space
SXYZ = q* mb * Sx’y’
depending on a factor q (Image Quality, method), mb scale of the Display, Sxy Accuracy of the Point measurement in Pixel (depending on signalized Points or nature between 1/20 to 2 Pixel)
2. A minimal code example. If you’ve found a bug, this helps us reproduce and repair it.
3. Context. Why do you need to do this? We might know a better way to accomplish your goal.
Point measurement, Length measurement in BIMs
4. The Cesium version you’re using, your operating system and browser.
1.63