Oracle Enterprise Manager Performance Monitoring User's Guide

Customizing Display Elements of Charts

Customizing the Chart Display
Customizing the Chart Legend

You can customize a number of chart elements-from major display elements such as chart type, dimension, and scale-to details concerning shadowing, angles, and legend. This chapter covers the following topics:

Customizing the Chart Display
Customizing the Chart Legend

Attention:

For information on modifying the basic definition of a chart, such as the SQL statement used to gather the data the chart presents, or the mathematical operation performed on such data, see Defining or Modifying Charts on page 5-1.

Customizing the Chart Display

Click the right mouse button on a displayed chart to display a menu with the following menu items:

Dimensions

Allows you to change the dimension of any chart type (except a table).

Options include: 2D and 3D.

Drilldown

Allows you to display another chart providing more detail. If this menu item is greyed out, no drilldown chart is available for this chart. If this menu item can be selected, selecting it displays the drilldown chart.

Predefined charts with drilldown capabilities include File I/O Rate and Library Cache Hit %. Defining or Modifying Charts on page 5-1 describes how to define a new chart with drilldown capability.

Properties

Allows you to change a number of properties of the displayed 3D chart. For more information, see Displayed 3DChart on page 4-2.

Scale

Allows you to customize measurement units and their scaling for the displayed chart. For more information, see Scaling of a Displayed Chart on page 4-3.

Type

Allows you to change the chart type of a chart.

Options include: Area, Bar, Cube, Horizontal Bar, Line, Pie, and Table. See Chart Types on page 2-9 for a description of these chart types.

Attention:

If a blank chart is displayed, a 3D chart has probably been selected, but the chart window containing the chart is not high or wide enough to display it.

Displayed 3DChart

To customize the 3D properties of a displayed 3D chart, click the right mouse button on the chart and choose Properties. The 3D View Properties property sheet displays. It contains the following elements:

Slide bar

Modify the slide bar to change the depth of the 3D chart.

X Angle

Modify the value in this box to specify the number of degrees to rotate the X angle of the chart. The chart will then be viewed from a different perspective. The default is 0.

Y Angle

Modify the value in this box to specify the number of degrees to rotate the Y angle of the chart. The chart will then be viewed from a different perspective. The default is 0.

3D

Check this box to display the 3D version of the chart.

Full 3D View

Check this box to enable the X Angle and Y Angle check boxes. 3D chart rotation is then enabled.

Shadows

Check this box to turn off/on marker shadows when in 3D mode. The default is on.

Click the Apply button to view any changes you have made to these 3D properties of the chart, while still remaining on the 3D View Properties property sheet. Click the OK button to save these changes and exit this property sheet.

Scaling of a Displayed Chart

To customize the scaling of a displayed chart, click the right mouse button on the chart. The Scale and Numbers property sheet displays. It contains the following elements:

Main Y Axis

This button is always selected to indicate that only the Y axis of a displayed chart can be customized.

X Axis

This button is always disabled to indicate that only the Y axis of the displayed chart can be customized.

Secondary Y Axis

This button is not implemented.

Main Y Axis

Minimum: Modify the value in this box to specify the minimum value for the selected axis. The default is 0.

Maximum: Modify the value in this box to specify the maximum value for the selected axis.

Scale Unit: Oracle Performance Manager automatically selects the scale. Modify the value in this box to override the automatic selection.

Decimals: Modify the value in this box to specify the number of decimals displayed for data point values. The default is 0 (no decimals displayed).

Increment (gap)

Automatic: Automatic is the default increment gap (or tick scale). This means that Oracle Performance Manager automatically selects the gap used in the axis.

Fixed: Check this box to specify the increment gap (or tick scale) used in the axis. You can then modify the value in the box to the right.

Show zero axis

Click this box to show the zero axis on a chart that includes negative values.

Axis Scale

Linear: Click this button to choose a linear scale for the Y axis. Linear is the default Y axis scale.

Logarithmic: Click this button to choose a logarithmic scale for the Y axis. You can then enter the log base to be used in the box to the right (the default is base 10).

Click the Apply button to view any changes you have made to these scalar properties of the chart, while still remaining on the Scale and Numbers property sheet. Click the OK button to save these changes and exit this property sheet.

Customizing the Chart Legend

This section covers the following topics:

Chart Legend Menu
Chart Legend Properties Other than Location

Suggestion:

In some cases, you may need to drag the bottom of the chart down in order to view the legend in its default location.

Chart Legend Menu

To customize the legend of a displayed chart, first click the right mouse button on that legend. The menu that is displayed includes the following menu items:

Options

Allows you to customize the chart legend by completing the Options property sheet, as described in the following section.

Left

Positions the legend to the left of the chart.

Top

Positions the legend on top of the chart.

Right

Positions the legend to the right of the chart.

Bottom

Positions the legend below the chart (default).

Float

Places the legend in a box which you can drag to position anywhere on the monitor screen.

Fixed

Fixes the position of a floating legend so that it cannot be moved.

Chart Legend Properties Other than Location

After you click the right mouse button on the chart legend and select Options, the Options property sheet is displayed. Use this property sheet to customize properties of the chart legend other than its position relative to the chart display. The Options property sheet contains the following:

Draw Border

Uncheck this box to remove the border surrounding a floating chart legend, or a fixed chart legend positioned outside of its default location under the chart itself. This box is checked by default.

Skip Empty

Uncheck this box to remove chart legend entries for variables when their value is 0. This box is unchecked by default.

Draw Splitter

Uncheck this box to remove part of the frame separating the chart legend from the chart display. This box is checked by default.

Multiline

Uncheck this box to force a chart legend entry onto a single line in the chart legend. This box is checked by default.

3D Frame

Check this box to add a third dimension to the frame of the chart legend. This box is unchecked by default.

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