In order to change the scales to display different minimum/maximum values, proceed as follows:
To modify the scale maximum:
If neither the scale minimum or maximum is locked (see below), then perform the following. Firstly, perform an upward dragging (left-button down) movement on the scale. The initial upward movement indicates that the bottom of the scale is to be kept fixed. Now carry out a sequence of downward or upward (as appropriate) dragging (left-button down) movements on the control scale until the desired scale maximum value is achieved.
If the scale minimum is locked, then it will be unaffected by any mouse movements, and any upward or downward dragging movements will apply only to the scale maximum, so these can be applied until the required value is achieved.
If the scale maximum is locked, it is not possible to change its value. (See below for details on how to unlock it).
To modify the scale minimum:
if neither the scale minimum or maximum are locked (see below), then: Firstly, perform a downward dragging (left-button down) movement on the scale. The initial downward movement indicates that the top of the scale is to be kept fixed. Now carry out a sequence of downward or upward (as appropriate) dragging (still holding left-button down) movements on the control scale until the desired scale minimum value is achieved.
If the scale maximum is locked, then it will be unaffected by any mouse movements, and any upward or downward dragging movements will apply only to the scale minimum, so these can be applied until the required value is achieved.
If the scale minimum is locked, it is not possible to change its value. (See below for details on how to unlock it).
To translate a scale: perform a right-click drag in whichever direction is appropriate.
Note: if either, or both, of the scale minimum or maximum are locked, it is not possible to translate the scale.
A special dialog facility exists to configure scales. Simply right-click on the scale; this will bring up the following pop-up menu:
The various options have the following meanings:
|
Option |
Meaning |
|---|---|
|
Add a New Slider |
Create a new scale. |
|
Remove Slider '<name>' |
Delete the specified scale from the graph area. |
|
Lock Maximum |
Do not allow the scale to extend upwards (vertical scales) or rightwards (horizontal scales) beyond the specified value. |
|
Lock Minimum |
Do not allow the scale to extend downwards (vertical scales) or leftwards (horizontal scales) beyond the specified value. |
|
Properties |
Display a dialog box enabling the specification of the slider title as well as the time range to be displayed within the graph area. |
|
Show All Graph Data |
Automatically adjust the selected horizontal/vertical scales so that all statistical models are displayable within the graph area. |
|
Minimize |
Hide/show the scale. |
To add a new horizontal scale to the Graph Area, simply right-click on any existing horizontal scale; this will bring up the pop-up menu (as previously):
Now select the 'Add a New Slider' option. A new horizontal scale will be added adjacent, and immediately below the existing set of horizontal scales. To add a new vertical scale to the Graph Area, simply right-click on any existing vertical scale, then, from the resultant pop-up menu, select the 'Add a New Slider' option. A new vertical scale will be added immediately to the right of the existing set of vertical scales.
In the example below, two additional vertical scales (Vertical 2, Vertical 3) have been added:
In the Statistical Graph Summaries view you can specify which scale (for example, Vertical 1, Vertical 2, Vertical 3, etc.) graphs can be displayed against.
For instance, in the following example, the percentage of Processor time is displayed against the Horizontal 1 and Vertical 2 scales:
We saw earlier that the 'Show All Graph Data' option available on the special pop-up menu to configure scales:
results in automatic adjustment of the selected horizontal/vertical scales so that all included statistical models are displayable within the graph area. Essentially what happens is that, for horizontal scales, the scale minimum is set to the minimum from the set of included statistical models, and likewise for the scale maximum. Similarly, for vertical scales, the scale minimum is set to the minimum from the set of included statistical models, and likewise for the scale maximum. Note that displaying extremely disparate statistical models (for example, models which are considerably apart chronologically) may result in severe compression leading to a very distorted view of the graph area.
For each graph displayed in the graph area, there is a corresponding indicator in the associated vertical scale (see example below). Indicators are vertical bars which are colored the same as the associated graph.
If a graph is de-selected, then its corresponding indicator will disappear.
(C) Copyright IBM Corporation 2000, 2007.