Step 3: Draw a perpendicular from line A-B at point B to
intersect the perpendicular bisector of B-X, which
locates the first required swing center. Draw a
perpendicular from line C-D at point C to intersect the
perpendicular bisector of CX, which locates the
second required swing center.
Step 4: Place the compass point and adjust the compass lead
to point B, and swing an arc from B to X. Place the
compass point on the second swing point and swing
an arc from X to C. This completes the ogee curve.
Figure 4.29 Example on ogee curve construction