The ornamental design for a directional compass, as shown and described.
FIG. 1 is a perspective view of a directional compass showing my new
design;
FIG. 2 is a perspective view of the compass of FIG. 1 from a different
angle than in FIG. 1; and,
FIG. 3 is a top plan view of the directional compass of FIG. 1.
The broken line showing of indicia on the face of the compass face are for
illustrative purposes only and forms no part of the claimed design. The
bottom of the compass, not shown in the drawings, is a plain, flat, and
unadorned surface.