8-2
IM 701830-01E
8.2
Setting the Interpolation Method
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For a description of this function, refer to page 1-16.
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Function
Interpolate
Any area along the time axis having less than 500 points per 10 divisions is recognized as an
interpolation area. If you leave interpolation off, these points will appear as discrete dots (so
that the display will show gaps between dots or vertical lines). If you set interpolation on,
however, the instrument will connect the points. Three interpolation settings are available.
Sine(
) : Interpolates between two dots using a sine curve (sin(x)/x).
Line(
) : Interpolates between two dots in a straight line.
OFF(
) : No interpolation
Outside the interpolation area
If interpolation is set to Sine or Line, the instrument draws lines between points that are aligned
vertically.
Interpolate
OFF
Sine or Line
:
Within the interpolation area
Interpolate
OFF
:
Sine
Line
Display Style
Selects the compression method used when interpolation is set OFF.
P-P
: Display maximum and minimum data values for each fixed interval.
Decim : Display data value at each fixed interval.
All
: Display all data (no compression).
Data interpolation under Envelope mode
If Envelope mode is selected, the instrument uses “area” interpolation as shown below
(regardless of the selected Display Style). Since Envelope mode operates by recording
maximum and minimum values at each given interval, the instrument cannot determine time
positions for data between these intervals.
Real data
