History Chart view

This view plots the historical data of the selected history log along X and Y axes. With this view you can display and configure charts of history records. Charts created in an earlier release are available as secondary History Chart views on history records.

To chart any point history in the History space, double-click directly on it. An example of the history chart view is shown here.

Figure 42. HistoryChart view

Buttons

The History Chart view contains the standard chart controls and options to help you customize and view the data. In addition to these standard controls, the History Chart view has the following buttons (also available on the toolbar):

Live Updates initiates On Demand plotting of the history data.
Delta initiates the plotting of Delta values.

Properties on a Px page

You edit History Chart properties in a Px page view.

Figure 43. History Chart properties in Px page

	Choose how to display these chart features on initial view.
	Choose to show or hide these chart features individually.

Properties include the following.

Name	Value	Description
defaultDelta	`true` or `false`	Controls the display of delta values on initial When set to true, this property causes the History Chart view to plot delta values on initial display and any time the view is refreshed.
defaultLiveUpdates	`true` or `false`	Configures the Chart view for live update mode on initial display and whenever the view is refreshed (`true`) or to normal mode (`false`).
defaultTimeRange	selectable time range options	Selects a specific time range option that appears on initial display and whenever the History Chart view is refreshed.
enabled	`true` or `false`	Disables (`false`) and enables (`true`) the history chart view.
layer		Groups objects in the Px Editor view by assigning them to a common layer.
layout	selectable coordinates, 0, 0, 450, 350 (default)	Provides four values (in pixels) that define the size of the history chart view display area.
showDeltaEditor	`true` or `false`	Hides (`false`) or shows (`true`) the delta mode button on the history chart view.
showLiveUpdates	`true` or `false`	Hides (`false`) or shows (`true`) the live update button on the history chart view.
showTimeRangeEditor	`true` or `false`	Hides (`false`) or shows (`true`) the Time Range Editor option list on the history chart view.
visibility	`true` or `false`	Hides (`false`) or shows (`true`) the history chart view.
visibility	true, false	This property allows you to hide (false) or show (true) the history chart view.