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Chapter II-12 — Graphs

II-240

Using this dialog you can create complex graphs in one step. The graph will be created based on the selec-

tions in the Y and X Wave lists as before and also on contents of the holding list. The above example was

created by first selecting wave0 from the Y Wave list, wave1 from the X Wave list and then clicking the Add

button. Next wave2 was selected from the Y Wave list, wave3 from the X Wave list and the left axis was

selected from the Axis pop-up menu under the Y Wave list and then the Add button was clicked. Finally

wave4 was chosen from the Y Wave list and _calculated_ was chosen from the X Wave list.

The more complex version of the dialog includes two-dimensional waves in the main list. You can edit the

range values for waves in the holding pen to specify individual rows or columns of a matrix or to specify

other subsets of data. See Subrange Display on page II-290 for details.

Waves and Axes

Axes are dependent upon waves for their existence. If you remove from a graph the last wave that uses a

particular axis then that axis will also be removed.

In addition, the first wave plotted against a given axis is called the controlling wave for the axis. There is only

one thing special about the controlling wave: its units define the units that will be used in creating the axis label

and occasionally the tick mark labels. This is normally not a problem since all waves plotted against a given axis

will likely have the same units. You can determine which wave controls an axis with the AxisInfo function.

Types of Axes

The four axes named left, right, bottom and top are termed standard axes. They are the only axes that many

people will ever need.

Each of the four standard axes is always attached to the corresponding edge of the plot area. The plot area

is the central rectangle in a graph window where traces are plotted. Axis and tick mark labels are plotted

outside of this rectangle. See Graph Dimensions on page II-247.

You can also add unlimited numbers of additional user-named axes termed free axes. Free axes are so

named because you can position them nearly anywhere within the graph window. In particular, vertical

free axes can be positioned anywhere in the horizontal dimension while horizontal axes can be positioned

anywhere in the vertical dimension. Axes can not be offset laterally but the same effect can be obtained by

shrinking the range over which they are drawn. See Modifying Axes on page II-264 for details.

Click to transfer Y Wave(s), X Wave and axes to holding list.

Holding list.

The new graph will be made

using these settings plus any

selection made in the top lists.

To delete one or more lines,

select and then press Delete.

Change list order by dragging

selected lines to new location.

Enter here a subrange of wave data for display.

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Axis 282 Bedienungsanleitung Seite 8