Measurement and Analysis
326 Vivid S5/Vivid S6 User Manual
R2424458-100 Rev. 2
To measure circumference using the Ellipse tool
1. Select the Circumference parameter.
An active caliper appears.
2. To position the active caliper, move the Trackball.
3. To fix the start point, press
SET.
The system fixes the first caliper and provides a second
active caliper.
4. To position the second caliper, move the Trackball.
An ellipse with an initial circle shape appears.
5. Position the second caliper so as to measure the major axis
of the elliptical measured body.
6. When ready press
SET.
A third caliper will appear along the second axis of the
ellipse.
7. Use the trackball to control the length of the minor axis of
the ellipse.
8. Press
SET to anchor the third caliper.
The system displays the parameter's circumference and
estimated age in the Results Window.
Editing Ellipse measurements
1. While the measurement is on the screen, trackball the
cursor to one of the anchor points of the ellipse to modify it.
2. When color changes to green, double-click the
SET key to
select the anchor point.
The selected marker is unanchored and can be moved.
3. With the Trackball, reposition the caliper.
The ellipse will rotate or stretch along with the motion of
the caliper
4. Press
SET to anchor.
Figure 7-42: Editing ellipse measurements
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