Visualization Element ‘Trend’

Symbol:

Tag: Special control elements

This element displays the graphical curve of variable values over a longer period of time. It provides additional controls for the view.

Element properties

Element name	Example: Velocity
Application	: Application that contains the trend recording. Specified with full instance name: <device name>.<application name> (example: Device.App).
Element type	Trend
Trend recording	: Trend recording that is visualized. Clicking the symbol opens the Selection trend recording dialog box. In this dialog, you assign a trend recording to the visualization element.
Diagram	: Clicking the field opens the Edit display settings dialog box.

See also

• Displaying Data Curve with Trend
• Command ‘Configure appearance settings of the trend’

Element property ‘Position’

The position defines the location and size of the element in the visualization window. These are based on the Cartesian coordinate system. The origin is located at the upper left corner of the window. The positive horizontal x-axis runs to the right. The positive vertical y-axis runs downwards.

X	X coordinate of the upper left corner of the element Specified in pixels. Example: 10.
Y	Y coordinate of the upper left corner of the element Specified in pixels. Example: 10.
Width	Specified in pixels. Example: 150
Height	Specified in pixels. Example: 30

Note

You can also change the values by dragging the box symbols ( ) to other positions in the editor.

See also

• Positioning Elements, Adapting Size and Layer

Display cursor	: A cursor (vertical line) is displayed at the mouse position.
Display tool tip	Requirement: Show cursor is activated. : The information about the variable is displayed in a tooltip at the cursor position.
Show frame	: The visualization element is displayed with a frame.
Number format	Number format of values in the tooltip and in the legend in printf syntax (example: %d, %5.2f).

Element property ‘Tick mark labels’

Time stamp	Absolute time stamps: The values of the time stamps are displayed in absolute time. Example: 18.03.2016, 14:05:30:000 The display formatting can be adjusted in the property Internationalization (format strings).
Two-line labelling	: The time stamps are displayed in two lines. The date is displayed in the first line and the time is displayed in the second line. : Time stamp is displayed in one line. The date and time can also be displayed in one line depending on the formatting.
Omit irrelevant information in time stamp	: The time stamp has a shorter form. For example, the date is displayed only for the first tick mark, and only the time for the following tick marks. The settings in Internationalization (format strings) are ignored for this setting. : All information is displayed for each time stamp.
Internationalization (format strings)	Only active when the parameter Omit irrelevant information in timestamps is deactivated.
Date	Definition of the date format. The default setting is taken from the Windows control panel.
Time	Definition of the time format. The default setting is taken from the Windows control panel.

Element property ‘Assigned control elements’

These elements are created automatically when the control elements are added with the command Insert elements for controlling trend.

Date range picker	Control element for changing the date and time of the displayed data sets. With , all elements are provided that have implemented the interface IDateRangeSelector. By default, instances of the Date range picker visualization element are available.
Time picker	Control element for changing the time of the displayed data sets. With , all elements are provided that have implemented the interface ITimeSelector. By default, instances of the Time range picker visualization element are available.
Legend	Control element for displaying a legend for the graphs. With , all elements are provided that have implemented the interface ILegendDisplayer.

See also

• Command ‘Insert elements for controlling the trend’