7 3D/4D
Operator’s Manual 7 - 27
Trace Mode
•Trace
a. Tap [Trace Mode] to select [Trace].
b. Rotate the trackball to place the cursor and press right <Set> key to fix the starting point,
move the cursor along the target to trace the outline, and press right <Set> twice to finish
tracing. During tracing, press left <Set> to cancel a series of tracing, or you can roll the
trackball backwards to delete latest tracing.
Press <set> key to display “Cancel” status on the track ball region, move the track ball to
cancel the trace.
•Spline
a. Tap [Trace Mode] to select [Spline].
b. Rotate the trackball to place the cursor and press right <Set> key to fix the starting point,
move the cursor along the area of interest and press right <Set> to anchor several
reference points; or press left <Set> to cancel a series of lines.
c. Press <Set> twice to set the end point of the spline.
Press <set> key to display “Cancel” status on the track ball region, move the track ball to
cancel the spline.
•Smart Trace
a. Tap [Trace Mode] to select [Smart Trace].
b. Rotate the trackball to place the cursor and press right <Set> key to fix the starting point,
move the cursor along the target to trace the outline, and press right <Set> key twice to
finish tracing. During tracing, press left <Set> to cancel a series of tracing, or you can roll
the trackball backwards to delete latest tracing.
Press <set> key to display “Cancel” status on the track ball region, move the track ball to
cancel the trace.
• Control Point
This mode can be used only after tracing is finished, and not support Smart-V ROI method.
a. Tap [Trace Mode] to select [Control Point].
b. Rotate the trackball to place the cursor on the finished trace and press right <Set> key to
select the point, move the cursor to the desired position, and press right <Set> key to fix
the point. During tracing, press left <Set> to cancel the point moving.
Press <set> key to display “Cancel” status on the track ball region, move the track ball to
cancel the trace.
Display 2D or Color 3D
Tap [Display] to select 2D display or 2D+Color 3D display.
Calculation
After tapping [Calc] or [ReCalc] to be on, the system starts calculation.
Reset Curve
Tap [Smart-V Reset Ori] to reset the volume rotation, shifting and zooming to original status.
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