followScreenPoint property
A screen point that when the map follow to the marker. The point
(-1.0, -1.0) indicate the top-left corner of the map widget. The point
(+1.0, +1.0) indicate the bottom-right corner of the map widget. The point
(0.0, 0.0) indicate the center of the map widget. The final screen point
is offset by followScreenPointOffset, i.e. (mapWidgetWidth *
followScreenPoint.x / 2 + followScreenPointOffset.x,
mapWidgetHeight * followScreenPoint.y / 2 + followScreenPointOffset.y).
Implementation
final CustomPoint followScreenPoint;