Axis 282 Bedienungsanleitung PDF herunterladen (Seite 33)

Chapter II-12 — Graphs

II-265

The dialog has tabs for various aspects of axis appearance, plus a few controls outside the tabs. These global

controls include the standard Igor dialog controls: Do It, To Cmd Line, To Clip, Help and Cancel buttons,

plus a box to display the commands generated by the dialog. At the top are the Axis menu and the Live

Update checkbox.

The Axis pop-up menu shows all axes that are in use in the top graph. Choose the axis that you want to

change from the Axis menu, or choose Multiple Selection if you want to affect more than one axis. Below

the Multiple Selection item are items that provide shortcuts for selecting certain classes of axes.

A multiple selection can be convenient if you want to set something like the color or line width for all the

axes in a graph the same way. When a multiple selection is active, the initial control settings reflect the set-

tings of the first selected axis in the list. Commands are generated to change some aspect of all the selected

axes any time a control is touched. This makes it quite easy to make sweeping changes, and rather difficult

to return to the unchanged state. Consequently, when multiple axes are selected, the dialog puts a warning

message at the top of the dialog:

Sometimes, with all the different things you can do to an axis, it is confusing to figure out exactly what you

want. In that case, you can select the Live Update checkbox and watch the graph change is you change set-

tings. In most cases graphs re-draw fast enough that this causes no problems. Consequently the Live

Update checkbox is turned on by default. A graph with a very large number of points, or a contour plot can

take quite a while to re-draw, causing annoying delays while you change settings. If it becomes annoying,

simply turn off the Live Update checkbox.

You select the appropriate tab for the types of changes you want to make:

Tab What It Does

Axis Settings that affect the appearance of the axis itself. Color, line type, log or linear, etc.

See Axis Tab on page II-266.

Auto/Man Ticks Settings that affect how many ticks are drawn; select automatic or user-defined tick

modes. See Auto/Man Ticks Tab on page II-268.

Ticks and Grids Settings that affect the appearance of tick marks. Select a grid and its style. See Ticks

and Grids Tab on page II-269.

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Axis 282 Bedienungsanleitung Seite 33