focalPoint
Focal point that defines the position of the first framed geometry point (typically the user location indicator, if available) in the MapboxNavigationViewportDataSource.followingPadding.
The value is a horizontal and vertical ratio starting from the top left corner of the padding, in the <0.0, 1.0>
range. Example:
FocalPoint(0.0, 0.0)
positions the first geometry point in the top leftFocalPoint(0.5, 0.5)
positions the first geometry point in the centerFocalPoint(1.0, 1.0)
positions the first geometry point in the bottom right
Defaults to FocalPoint(0.5, 1.0)
that centers horizontally on the bottom edge of the padding.
NOTE: The focal point change has no effect when the camera's pitch is 0
and maximizeViewableGeometryWhenPitchZero is enabled.