Let's consider a code example showing what would be allowed (or not) using different levels of inheritance: 1  class BaseClass {}; void freeStandingFunction(BaseClass* b); class DerivedProtected : protected BaseClass { DerivedProtected() { freeStandingFunction(this); // Allowed } };
Definition of Horizontal Axis. Horizontal means flat or level. Horizontal axis is the x-axis on a graph. The blue number line in the figure below is the x-axis, the horizontal axis.
Axes of Movement. 1  Sagittal Horizontal Axis â axis of the body that passes from front to rear lying at right angles to the frontal plane. 2  Frontal Horizontal Axis â axis of the body that passes horizontally from side to side at right angles to the sagittal plane.