The solar altitude angle in radians at which the phase becomes 0 (full day).
The solar altitude angle in radians at which the phase becomes 1 (full night).
OptionalnowOptional time source. Called each time the phase is re-evaluated; if omitted, the current wall clock is used and the map re-evaluates the phase every 2 seconds. Supplying this disables the automatic 2-second refresh — the host is expected to call MapView.$render (or otherwise trigger a frame) whenever the playback time advances.
The colour transformation phase is calculated from the sun's altitude angle (in radians) at the centre of the map.
Remarks
Below
minthe phase is 1 (full night); abovemaxit is 0 (full day); in between it interpolates linearly. Typical values use ±5° in radians (≈ ±0.0872665).