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The waveform edit window contains horizontal and vertical gridlines.
To change the spacing of the horizontal and vertical grid lines select
View | Grid... from the Menu Bar.
The spacing of the vertical (up/down) grid lines is directly affected by the
View | Grid... command. The horizontal spacing (left/right) of the grid
lines is automatically adjusted to standard values (such as 0, 0.25, 0.5,
0.75, or 1.0).
Grid line spacing is specified in terms of the number of screen display
pixels between grid lines. While this spacing also relates to the number of
waveform data points displayed between grid lines, the relationship is
not always one-to-one due to the effects of zooming. Six levels of zooming
are provided (0 - 5), giving the pixel-to-number-of-data-points
relationship in the following table:
Zoom Level
Waveform data points
per screen display pixel
0
(default - no zoom)
32
116
28
34
42
5
(fully zoomed in)
1
For example, if no zoom is in use, a spacing of 100 pixels between vertical
grid lines relates to the display of 3200 (32 X 100) waveform data points
between grid lines. At full zoom, a spacing of 100 pixels between grid
lines results in 100 (1 X 100) waveform data points between grid lines.
To adjust grid line spacing, specify the number of pixels by clicking on
the up/down arrows or type a number in the text box and click OK. Valid
grid sizes range from 50 (default) to 200 pixels.
The waveform edit window can also be displayed in normal or high
resolution viewing mode. Normal mode consists of points that have been
uniformly sampled and chosen for display. High resolution mode displays all
points of the waveform (Select View | High Resolution from the Menu
Bar). Operations on the waveform in high resolution mode will take longer
to perform because the display will be updated at a slower rate.
4
Chapter 4 Feature and Function Reference
Waveform Edit Windows
53