The lane space marks, also known as the blocks, denote where non-shooting players stand during free throws. Players may not cross these lines before the ball touches the rim on the shot attempt
basketball_lane_space_mark(feature_thickness = 0, mark_depth = 0)
A data frame containing the bounding box of the lane space mark
The thickness of the lane space mark (this is the
distance in the x
direction in "TV View")
The distance from the exterior edge of the free throw lane boundary that the lane space mark extends towards the sideline