A dot is an isolated single ridge unit (ridge that contains a single
pore). Generally, the width of a dot is similar to the width of neighboring
ridges, and the length of a dot approximates its width. If a ridge is
significantly longer than it is wide and contains multiple ridge units, it
is a short ridge rather than a dot.
An incipient ridge is a thin ridge, substantially thinner than nearby
ridges. Incipient ridges generally do not contain pores. Incipients
frequently appear as a series of separate segments.
Often the distinction between a dot, an incipient ridge, and a short ridge is
unclear.
If the feature is similar in width to the local ridge width and at least
twice as long as it is wide, consider it a standard ridge and mark both
ridge endings. If pores are visible, a standard ridge should have at least
two pores.
If the feature is similar in width to the local ridge width, but about as
long as it is wide, mark it as a dot.
If the feature is substantially thinner than local ridge width, mark it as an
incipient ridge.
Dots and incipients are marked for case work and if EFS Profile 3: Detailed
Markup Profile is to be used.
A dot is marked at its center point.
An incipient ridge is marked with a line segment along its longest dimension. If
an incipient ridge is composed of a series of segments, do the following:
- Mark the series as a single line if the segments of the incipient are close
together or the separations between segments are indistinct.
- Mark the series as separate incipient ridges if the segments are clearly
separate (with distinct lines drawn for each).
- If an unbroken incipient ridge curves, mark it as a series of adjoining line
segments. In many cases, distinguishing among dots, incipients, and ridge
edge protrusions (spurs) is a judgment call.
Select Dot or Incipient to change your cursor to that tool. For a dot, click and
release on the center of the feature. For an incipient ridge, click down at one end
of the ridge, then drag to the other end and release. To remove a mark, click on the
Delete tool, then on that spot on the canvas.