7-4
IM DL350-01EN
Environment Settings (Preference)
Interpolation Method (Dot Connect)
In interpolation zones in the T-Y waveform display,
*
Xviewer can display waveforms by interpolating between
sampled data points.
* Interpolation zone refers to the condition in which a given number of data points are not contained in the 10
div along the time axis. The number of data points that define the interpolation zone varies depending on the
display record length and zoom factor.
You can set the interpolation method to one of the options below.
• OFF
Displays the data using dots without interpolation.
• Sine Interpolation (Sine)
Interpolates a sine curve between two points using the (sinx)/x function. This method is suitable for the
observation of sine waves.
• Linear Interpolation (Line)
Linear interpolation is performed between two points.
• Pulse Interpolation (Pulse)
Interpolates between two points in a staircase pattern.
Outside of the Interpolation Zone
• When Interpolation Method Is OFF
If the interpolation method is set OFF in the T-Y waveform display or when the X-Y waveform display is
shown, the instrument displays the acquired data without P-P compression by removing the data between
fixed intervals. When the record length exceeds 2 kpoint, the instrument removes data until there are only 2
kpoint and displays two points on each vertical line. When the record length is less than 2 kpoint, all the points
are displayed.
• When Interpolation Method Is Sine, Line, or Pulse
The dots are connected vertically.
If the number of data points is 2002 or greater, the instrument determines the P-P compression values
(the maximum and minimum sampled-data values in a given interval), and displays vertical lines (rasters)
connecting each pair of maximum and minimum P-P compression values.
OFF
Sine/Line/Pulse
In the Interpolation Zone
OFF
Sine
Line
Pulse
The interpolation method is set to Pulse when:
• The input signal is a logic signal.
• The acquisition mode is Envelope.
7 Display