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The
Interp
soft-key allows the type of expansion to be specified. With
Interpolator Off
selected points will be repeated, this is most appropriate for waveforms with fast rising or falling
edges. With
Interpolator On
selected linear interpolation will be used as points are added,
this is most appropriate for waveforms which are more sinusoidal in nature. For a truly complex
waveform it should be created with either 16k of 128k point so that expansion is not required.
Resizing a waveform
A waveform may have its length changed by using the resize option. When a waveform is increased
in size new points are added between existing points. The way that the values of these new points
are calculated depends on the resize method setting, see below. When a waveform is reduced in
size points are simply dropped to achieve the new length.
Pressing the
Resize
soft-key will show the resize menu in the Edit Box and the soft-keys will
show the resize options.
The
No.Pts
soft-key allows the new size to be specified. The number of points may be
changed in either of the ways detailed in General: Numeric Editing. Press the
Execute
soft-key
to resize the waveform and return to the top level edit menu. Pressing the
soft-key will return
without resizing.
Pressing the
Method
soft-key will allow the resize method to be set.
When a waveform is increased in size new points are added between existing points. The way that
the values of these new points are calculated depends on the resize method setting, The
Repeat
Points
method adds points of the same value as the original point in the waveform. The
Interpolate
method draws a straight line between the existing points.
When a waveform is reduced in size points are simply dropped to achieve the new length and the
resize method setting has no effect.
