Projection

Calculates a map point at the specified screen point.

The function returns an empty value if the specified screen point is outside the map projection.

Calculates the screen point corresponding to the specified map point.

The function returns an empty value:

• if the point has an invalid value (latitude is outside the range -90;90 or longitude is outside the range -180;180).
• if the specified map point is above the projection plane of the map on the screen.
• if the specified map point is too far beyond the screen and the type overflow occurs.

Calculates the nearest map point to the projection of the specified screen point.

Calculates the distance in meters between points on the map that correspond to the specified points on the screen.
Returns an empty value if one or both points on the screen are outside the map projection.

Calculates the distance in pixels between points on the screen that correspond to the specified points on the map.
Returns an empty value if one or both points on the map are:

• invalid values (latitude is outside the range -90; 90 or longitude is outside the range -180; 180)
• above the projection plane of the map on the screen
• far beyond the screen, and the type overflow occurs