The cells covering whatever the camera can currently see.
Returns undefined when Cesium cannot produce a view rectangle, which happens when the camera is pointed away from the globe.
undefined
A fully zoomed-out view has no natural bound, so the cell budget does the real work there: the cover steps to coarser levels until it fits.
The cells covering whatever the camera can currently see.
Returns
undefinedwhen Cesium cannot produce a view rectangle, which happens when the camera is pointed away from the globe.A fully zoomed-out view has no natural bound, so the cell budget does the real work there: the cover steps to coarser levels until it fits.