Pie Charts/Gauges: Interfaces
See Also
The options listed below are found on the Oneline Display Options dialog on the Pie Charts/Gauges page on the Interfaces tab.
Pie Chart Style
The Pie Chart Style box determines whether the interface pie charts show the percentage loading of the line based upon the MW flow, the maximum percentage loading under contingency, or the PTDF value.
Color, Size and Percentage
This section of the options dialog allows you to customize the appearance of the interface flow pie charts on the diagram. The default options for the interface flow pie charts are set on the Lines MVA tab. However, you can choose different settings for the interface styles by selecting the corresponding tab under the Color, Size and Percentage section. Each of the styles can be set to use the same settings as defined for Lines MVA by checking the given option on the page. If this option is unchecked for a particular style, then any interface pie chart on the diagram of that style type will use the specifically defined appearance options for that style type.
The following parameters are all available on each of the three style tab pages:
Show Value Percent
When an interface's loading exceeds the value specified in the Show Value Percent field, the percentage loading is shown as text within the pie chart. The default is 80%.
Normal Size Scalar, Normal Color
The standard, pre-warning fill color and scaling factor for pie charts.
Use Discrete Map
When this option is checked, the color of the pie chart will be the colors listed in the Warning/Limit Scalars and Colors when the loading on the interface has reached the specified percentage and has not yet met the next higher percentage. If this option is not checked, the color of the pie chart will be a blend of the colors for the loading range in which the interface loading falls, with the color providing an indication of where it falls in the loading range.
Warning / Limit Scalars and Colors
The table in this section allows you to choose different settings for the pie chart size and color, based on the percentage value represented by the pie chart or gauge. Thus you can set up visual clues as to when the flow on interfaces exceeds specified warning or limit levels. You can add and remove points from this table by right-clicking in the table and using the Insert and Delete options from the popup menu.
To modify the Percent and size Scalar for a record in the table, simply click on the value in the cell and type in a new value. To change the color associated with the percent value, double click in the Color cell to open the Color Chooser dialog.
Make normal color the same as the line to which the pie chart or gauge is anchored (if any)
If checked, this option will cause the pie charts to assume the same normal colors as the interface to which they are anchored. This may be useful if the interfaces are colored differently on the diagram.
Only Apply Warning/Limit Colors and Resizing to Monitored Elements
If this option is checked, then only those pie charts that correspond to interfaces selected using the Limit Monitoring Settings will change appearance to reflect warning and limit loading levels. If this option is not checked, then all interface pie charts will obey the options prescribed in this dialog.