Axis 282 Uživatelský manuál stáhnout pdf (Strana 71)

Chapter II-12 — Graphs

II-303

Graph Preferences

Graph preferences allow you to control what happens when you create a new graph or add new traces to

an existing graph. To set preferences, create a graph and set it up to your taste. We call this your prototype

graph. Then choose Capture Graph Prefs from the Graph menu.

Preferences are normally in effect only for manual operations, not for automatic operations from Igor pro-

cedures. This is discussed in more detail in Chapter III-17, Preferences.

When you initially install Igor, all preferences are set to the factory defaults. The dialog indicates which

preferences you have not changed by displaying “default” next to them.

The Window Position and Size preference affects the creation of new graphs only. New graphs will have

the same size and position as the prototype graph.

The Page Setup preference is somewhat unusual because all graphs share the same page setup settings, as

shown in the Page Setup dialog. The captured page setup is already in use by all other graphs. The utility

of this category is that new experiments will use the captured page setup for graphs.

The “XY Plots:Wave Styles” preference category refers to the various wave-specific settings in the graph,

such as the line type, markers and line size, set with the Modify Trace Appearance dialog. This category

also includes settings for Waveform plots. Each captured wave style is associated with the index of the

wave it was captured from. The index of the first wave displayed or appended to a graph is 0, the second

appended wave has an index of 1, and so on.These indices are the same as are used in style macros. See

Graph Style Macros on page II-305.

If preferences are on when a new graph with waves is created or when a wave is appended to an existing

graph, the wave style assigned to each is based on its index. The wave with an index of 2 is given the cap-

tured style associated with index 2 (the third wave appended to the captured graph).

You might wonder what style is applied to the fifth and sixth waves if only four waves appeared in the

graph from which wave style preferences were captured. You have two choices; either the factory default

style is used, or the styles repeat with the first wave style and then the second style. You make this choice

in the Miscellaneous Settings dialog, with the Repeat Wave Style Prefs in Graphs checkbox. With that box

selected, the fifth and sixth waves would get the first and second captured styles; if deselected, they would

both get the factory default style, as would any other waves subsequently appended to the graph.

The XY Plots:Axes and Axis Labels preferences category captures all of the axis-related settings for axes in

the graph. Only axes used by XY or Waveform plots have their settings captured. Axes used solely for an

category, image, or contour plot are ignored. The settings for each axis are associated with the name of the

axis it was captured from.

Indicates that the current

page setup is the factory

default page setup.

Captures preferences for

the selected items from the

active graph window.

Resets preferences for the selected

items to the factory defaults.

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Axis 282 Uživatelský manuál Strana 71