Positive and negative vector relation

Context in source publication

Context 1

... subjects, based on their gender, were divided into two groups (group A males and group B females). The anterior corneal plane is the line drawn from the most prominent part of the cornea to the anterior cheek mass to determine the vector relationship ( Figure 1). If the anterior cheek mass was ahead of the corneal plane, it was considered to be a positive vector and if the anterior cheek mass was behind the corneal plane, it was taken as a negative vector. ...