ALL-TEST PRO ATPOL II, Руководство пользователя

Страница: 97 / 109

97
Working with Graphs and Waveforms
General
It is important to us to allow you to work with and manipulate the various graphs and waveform
presentations in PSM. We try to make the features that accomplish this look and feel the same
throughout the program so you can handle all waveforms and graphs in the same way as much as
possible. This is one of the areas in which we continually improve the product and our software
updates will allow you to benefit from these improvements over time. This section presents the general
methods we have for analyzing, manipulating, and presenting the data. The
Viewing Consumption
Waveforms section presents additional material that relates just to waveforms.
The types of analysis and manipulation features are:

Selection of signals to view

Attaching labels and titles

Changing the color scheme

Setting the scale

Printing and saving as Windows bitmap graphic

Redo (get new data)

Zooming and panning

Viewing data
In order to ease selecting the signal you wish to see and to avoid
cluttering the presentation, we use an approach of primary
choice and secondary choice. This is a simple two-step process.
First you choose a primary choice. That results in only being
presented with the appropriate secondary choices.
Often, the presentation of a graph can be enhanced by changing
the title at the top from the filename to something more descriptive.
This does not change the filename, but it may improve the look of
the graph. Also, points of interest can be brought out in a
presentation by adding labels to the chart. The label consists of
some text and an arrow. To create labels or titles, click on View
and then Labels or click on the Modify or Add Label icon.
Normally, the scale of a display is set automatically by PSM to give
the best size presentation of the data. However, when doing
“before” and “after” comparisons, it is best to have identical vertical
scales, otherwise a small “after” number may appear to be larger
than the “before” number. You can control the vertical and
horizontal scales by clicking on “View” and then “Set Scale”.