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1.
Press the Caliper key to activate the measurement, and the measurement menu displays on the top left
of the screen.
2.
Select [Volume] on the menu by moving the trackball and press Set to confirm. Select [EDist] on the pop-up
menu. A marker displays on the image.
3.
Move the marker to the starting point by using the trackball, press Set to fix the marker and the second
marker displays.
4.
Move the second marker to the end point by using the trackball and press Set. An ellipse displays on the
image.You can also press Update on the control panel,move the trackball to the axes to adjust heir lengths.
Then press Set to confirm.
5.
Rescan an image which is perpendicular to the previous image.
6.
Perform a distance measurement. The system automatically calculates the volume, and the measurement
result displays in the result box.
Ellipse
Steps:
1.
Press the Caliper key to activate the measurement,and the measurement menu displays on the top left of the
screen.
2.
Select [Volume] on the menu by moving the trackball and press Set to confirm.
Select[Ellipse] on the pop-up menu. A marker displays on the image.
3.
Move the marker to the starting point by using the trackball, press Set to fix the marker and the second
marker displays.
4.
Move the second marker to the end point by using the trackball and press Set. An ellipse displays
on the image. You can also press Update on the control panel,move the trackball to the axes to adjust their
lengths. Then press Set to confirm.
5.
The system automatically calculates the volume, and the measurement result displays in the result box.
8.4.1.4 Area Ratio
The value of area ratio between two ellipses and trace areas can be measured.
Ellipse ratio
It is used to measure the value of area ratio between two ellipses.
Steps:
1.
Press the Caliper key to activate the measurement, and the measurement menu displays on
the top left
of the screen.
2.
Select [Ratio(A)] on the menu by moving the trackball and press Set to confirm. Select[Ellipse]
on the pop-up menu. A marker displays on the image.
3.
Move the marker to the starting point by using the trackball, press Set to fix the marker and
the second
marker displays.
4.
Move the second marker to the end point by using the trackball and press Set. An ellipse
displays
on the image. You can also press Update on the control panel, move the trackball to the axes to
adjust
their lengths. Then press Set to confirm.
5.
Repeat step 3-5 to draw the second ellipse. The system automatically calculates the area
ratio,
and the measurement result displays in the result box.
Trace ratio
It is used to measure the value of area ratio between two trace areas.
Steps:
1.
Press the Caliper key to activate the measurement, and the measurement menu displays on
the top left
of the screen.
2.
Select [Ratio(A)] on the menu by moving the trackball and press Set to confirm. Select[Trace]
on the pop-up menu. A marker displays on the image.