Calculate screen coordinates that corresponds to geographical coordinates (i.e., longitude-latitude pair).
The screen coordinates are in MapOptions.size platform pixels relative to the top left of the map (not of the whole screen).
Map must be fully loaded for getting an altitude-compliant result if using 3D terrain.
Returns a batch of screen coordinates on the screen in MapOptions.size platform pixels.
A batch of geographical coordinates on the map to convert to screen coordinates.