{"id":56312,"date":"2022-08-11T11:57:13","date_gmt":"2022-08-11T03:57:13","guid":{"rendered":"https:\/\/oihelp.corporate.ifs.com\/help\/?page_id=56312"},"modified":"2025-08-01T14:36:55","modified_gmt":"2025-08-01T06:36:55","slug":"trace-window-4-9","status":"publish","type":"page","link":"https:\/\/oihelp.corporate.ifs.com\/help\/p2-explorer\/trends\/trace-window\/trace-window-4-9\/","title":{"rendered":"Trace Window (4.9)"},"content":{"rendered":"\n

This article applies to version 4.9 of P2 Explorer. For the latest help, see Trace Window.<\/a><\/p>\n

The Trace Window is the main area of the trend, and displays the trend's data.<\/p>\n

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Trend data is plotted along an x-axis and one or two y-axes (left and right).<\/p>\n

You can place one or more hairlines on the trace window, to see the data in more detail for a particular point in time; you can also add comments from a hairline's information box, or by clicking on the comment marker for an existing comment.<\/p>\n

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Maximising the Trace Window<\/h2>\n

You can change the trend view to allow more space for the trace window.<\/p>\n

Click any of the Range Selector, Controls<\/strong>\u00a0or Trace Table <\/strong>buttons on the toolbar to hide the respective sections.<\/p>\n

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This is how the trend looks without the Range Selector, Controls or Trace Table. Toggle any of the buttons to show the section again.<\/p>\n

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Y-Axes<\/h2>\n

The left and right y-axes can be displayed in various ways. Axes can be shared or separate. When separate axes are selected, you can update the default display minimum and display maximum by manually updating, clicking Auto Range, or resetting to their stored values. The different display minimums and maximums help to determine how the axes are displayed, and also how the traces are plotted within the trace window.<\/p>\n

Use the trace table and the configuration buttons on the toolbar to manipulate the Y-Axes, as described in the next sections.<\/p>\n

Read more: Trace Table<\/a><\/p>\n

Separate or Shared Y-Axis<\/h3>\n

You have the option of plotting each trace item against its own axis (Left or Right).<\/p>\n

Note: Even if you choose separate Y-Axes, there is still only one rendered Y-Axis for Left, and one for Right.<\/p>\n

Separate Y-Axis<\/strong><\/p>\n

If you want each trace to be plotted against its own axis, select Separate<\/strong> from the Y-Axis<\/strong> drop-down list.<\/p>\n

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The left Y-Axis shows the first Left Axis item in the trace table. The right Y-Axis shows the first Right Axis item in the trace table.<\/p>\n

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Note: If you select an item in the trace table, then the left or right Y-Axis is updated for this data item.<\/p>\n

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Selecting the Left and Right Y-Axes from the Trace Table<\/strong><\/p>\n

You can control the rendered Left and Right Y-Axes by clicking on one either a left Y-axis item, or a right Y-axis item. If there is no selection, then the most recently selected left or right Y-Axis is shown.<\/p>\n

Each Y-Axis (Left or Right) is rendered in the colours of the corresponding left Y-Axis or Right Y-Axis item.<\/p>\n

In the following screenshot, the most recently selected Left Y-Axis item is used for rendering the left Y-Axis [1], and the currently selected Right Y-Axis item is used for rendering the right Y-Axis [2].<\/p>\n

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Shared Y-Axis<\/strong><\/p>\n

If you want all traces to be plotted against a shared axis, select Shared<\/strong> from the Y-Axis<\/strong> drop-down list.<\/p>\n

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All traces on the Left Y-Axis (L) are plotted against a single, shared Left Y-Axis, while all traces on the Right Y-Axis (R) are plotted against a single, shared Right Y-Axis. When there is a shared Y-Axis, the Left Y-Axis and the Right Y-Axis are both rendered in black.<\/p>\n

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Manual Display Min and Max<\/h3>\n

Minimum and maximum display values for items in the trace table can be edited, and saved with the trend. The minimum and maximum values help to determine the range along the y-axes.<\/p>\n

Separate Y-Axis<\/strong><\/p>\n

1. Select Separate<\/strong> from the Y-Axis drop-down list on the ribbon.<\/p>\n

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2. Edit individual\u00a0Min<\/strong> and Max<\/strong> values in the Trace Table and overwrite with a new value.<\/p>\n

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Note: The new Min and Max display values for items in the trace table are saved with the trend, but the stored minimum and maximum display values for the tags are not updated.<\/p>\n

Shared Y-Axis<\/strong><\/p>\n

1. Select Shared<\/strong> from the Y-Axis drop-down list on the toolbar.<\/p>\n

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2. Select the Y Axis Range button in the toolbar and click on the Min and Max buttons to set a new minimum and maximum range on the y-axis. You can also revert this back to an automatic range.<\/p>\n

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Resetting Display Min and Max<\/h3>\n

Trace item Minimums and Maximums that have been manually overwritten, or updated using Auto Range, can be reset to their stored value.<\/p>\n

1. Select Separate<\/strong> from the Y-Axis drop-down list on the toolbar.<\/p>\n

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2. Click the \"\" to the right of the Min or Max value for a trace item, to reset to the stored value.<\/p>\n

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Auto Range<\/h3>\n

Auto Range automatically updates the individual display minimum and maximum values, so that all of your trace data points are visible on the trend. The Auto Range function is only available for separate y-axes.<\/p>\n

1. Select Separate<\/strong> from the Y-Axis drop-down list on the ribbon.<\/p>\n

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2. Click Auto Range <\/strong>on the Trend ribbon.<\/p>\n

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Auto Range calculates a new Min<\/strong> and Max<\/strong> for each item, based on the individual items\u2019 data values for the selected time range, and plots the separate trace lines using the new minimums and maximums.<\/p>\n

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Things to Notice<\/strong><\/p>\n