GW Instek APS-1102 Control Software User Manual - Manual (Page 80)

APS-1102 Control Software User Manual
8-16
f) Deleting all the control points
Click the Delete All button to select all the set control points.
The selected control points cannot be restored. Take extra care when using this function.
8.3.2 Interpolation
When the range is selected and the control points are set, perform interpolation. The following three
types of interpolation methods are possible.
 Linear interpolation where the spaces between control points are interpolated with a straight line
 Spline interpolation where the spaces between control points are interpolated with a smooth curve
 Continuous spline interpolation to use such a curve that the waveform is continued outside to the
selected range for interpolation
For linear interpolation, click the Linear button or press Alt + L .
For spline interpolation, click the Spline button or press Alt + S .
For continuous spline interpolation, click the Cont Spline button or press Alt + C .
If part of the waveform is selected as the range, the control points at both edges of the range and
those within the range are interpolated.
If the whole waveform is selected, continuous spline interpolates the waveform so that the head and
tail of waveform will be smoothly connected if the waveform is repeated. The head and tail would
have different values in the case of spline interpolation, so the waveform will not be smooth if
repeated.
When the setting results in interpolation that exceeds the ± full scale range, waveforms are clipped
at the ± full scale range.
After interpolation, click the OK button to return to the waveform display screen.
Immediately after creating a waveform on the interpolation editing screen and returning to the
waveform display screen, the status before waveform creation can be recovered by selecting [Edit]
- [Undo]
(Alt, E, U ), or pressing Ctrl + U.
8.3.3 File operation
The settings on the interpolation editing screen can be saved in a text file.
Select [File] - [Save] (
Alt , F , S or Ctrl + S ) on the interpolation editing screen. The screen
titled [Save As] appears.
Select a saving location, input a file name and click the
Save button. Select a file extension from
“.prn”, “.tsv”, and “.csv” so that it will not be necessary to specify it during file name input.
To read the file containing the interpolation editing screen settings, select [File] - [Open] ( Alt , F ,
O or Ctrl + O ).
When the screen titled [Open File] appears, select a file location, input a file name and click the
Open button.
This file can be read as is using a text editor, spreadsheet software or other application.
Otherwise, ARB can read the text file created by using a text editor, spreadsheet software, or other
application. When creating a text file, put the X data and Y data on one row.