Value Viewer
Overview
Use the Value Viewer to display values from multiple channels at once. The Value Viewer can be configured for screen displays, as well as for paper prints. The Value Viewer optionally also displays channel names and units.Operator ports
Input S: Floating point valuesPaired User Interface Object
This operator is loaded simultaneously with a user interface object. The user interface object can be moved to another page, and would normally be displayed in the end-user application. The operator and this user interface object can never be separated. If you delete the operator, the user interface is deleted automatically as well. Note that you cannot delete the user interface, only the operator symbol!Properties
Find more information about changing properties here: "Properties Viewer"ExtraRoomTopBottom
type: True or FalseSet to True to get extra distance between the first line of values and the top border, and last line of values and bottom border. This is analog to the ExtraRoomTopBottom of Y-T Viewers.
Select one of those presets:
True or False
True may also be read like 'yes' and false like 'no'
True or False
True may also be read like 'yes' and false like 'no'
GridVisible
type: True or FalseSet to True to show a grid in the color GridColor.
Select one of those presets:
True or False
True may also be read like 'yes' and false like 'no'
True or False
True may also be read like 'yes' and false like 'no'
AlignValues
type: Select from the listSelect one of the options to indicate how the values in the viewer should be aligned.
Select one of those presets:
LeftAlign
Values are aligned along the left border
Center
Values are centered horizontally
CenterDecimals
Real values are aligned around their decimal dots or commas. The dot or comma is centered.
RightAlign
Values are aligned along the right border
LeftAlign
Values are aligned along the left border
Center
Values are centered horizontally
CenterDecimals
Real values are aligned around their decimal dots or commas. The dot or comma is centered.
RightAlign
Values are aligned along the right border
Please not that for some text font faces, the alignment may show small deviations. This is due to the alignment of the characters on the pixels of the graphical surface, which is done in a way that the characters are best readible.
AlignLabels
type: Select from the listSelect one of the options to indicate how the labels in the viewer should be aligned.
Select one of those presets:
Left
Texts or values are aligned along the left border
Center
Texts or values are centered horizontally
CenterDecimals
Real values are aligned around their decimal dots or commas. The dot or comma is centered.
This only applies to texts that represent one Real value
Right
Texts or values are aligned along the right border
Justify
Texts are evenly spaced between the left and right border, where the space character can be varied to get the spacing.
Left
Texts or values are aligned along the left border
Center
Texts or values are centered horizontally
CenterDecimals
Real values are aligned around their decimal dots or commas. The dot or comma is centered.
This only applies to texts that represent one Real value
Right
Texts or values are aligned along the right border
Justify
Texts are evenly spaced between the left and right border, where the space character can be varied to get the spacing.
InvalidValue
type: See descriptionSpecify a value that you know is an invalid value in the signal. If the input value is equal to this value, then the InvalidValueText is displayed. If InvalidValueText is empty, then InvalidValue is not evaluated.
InvalidValueText
type: See descriptionSpecifies the text that is displayed in case an invalid value is detected at the input. See also the documentation of InvalidValue.
FontTitle
type: See descriptionFontContents
type: Known text font nameThe text font of values and labels of the shown contents or graph (select from the Font repository).
This property uses the Font Repository. For more information about the use of text fonts in a project, refer to "Font Repository"
LeftPaneWidth
type: Integer valueWidth of the left area, measured in pixels when the page is zoomed at 100%.
RightPaneWidth
type: Integer valueWidth of the right area, measured in pixels when the page is zoomed at 100%.
TitlePaneHeight
type: Integer valueHeight of the title area, measured in pixels when the page is zoomed at 100%. Set to 0 zero to hide the title.
BottomPaneHeight
type: Integer valueHeight of the bottom area, measured in pixels when the page is zoomed at 100%.
ForegroundColor
type: Known color nameColor of foreground items (general texts and lines), which is a color from the color repository.
This property uses the Color Repository. For more information about the use of colors in a project, refer to "Color Repository"
BackgroundColor
type: Known color nameColor of the background, which is a color from the color repository.
This property uses the Color Repository. For more information about the use of colors in a project, refer to "Color Repository"
GridColor
type: Known color nameColor of the grid, which is a color from the color repository.
This property uses the Color Repository. For more information about the use of colors in a project, refer to "Color Repository"
BorderStyleOutside
type: See descriptionBorder style from the border repository to define the outer border. Leave empty to have no border.
NumberFormat
type: See descriptionNumber format name from the number format repository. This number format is used to display all values of this object. Example: '.3' three digits after dot-separator
Title
type: See descriptionThe title above the signal pane. You may use variables in the text. (Note: this is not the Caption of the operator symbol!)
Variables that are used as part of the viewer title are only updated if the viewer itself is updated, so you cannot for example display a clock as title.
One example of use is to display the name of the file that is currently viewed in the viewer. Your title then may look like this:
Viewing file $Design.File Replay.Caption$ (date: $Design.File Replay.FileDate$
One example of use is to display the name of the file that is currently viewed in the viewer. Your title then may look like this:
Viewing file $Design.File Replay.Caption$ (date: $Design.File Replay.FileDate$
Caption
type: Word or phraseThe name of the object in the project. This name must not contain '.', '$' nor '@' characters.
For more information about the rules and usage of the Caption property, please refer to "Caption property - background and usage".
Documentation
type: See descriptionOptional documentation of this object. If this object is an operator, the Documentation text is displayed below the operator symbol.
Variable Parameters
Find more information about Variable Parameters here: "Variable Parameters"Values
type: Parameter list (see "Parameter List")Copy of the value list as displayed in the viewer. You may use this to save or otherwise display the contents of the table.
Details
The Value Viewer's concept is simple: values of all input signals are displayed without delay. If you want to show only a selection of signals, then you should use a Channel Terminal ("Channel Terminal") or Channel Splitter ("Channel Splitter") before the Value Viewer's operator.The values are updated as fast as the user interface allows them to be updated. If you require a slower updating of the values, then you may consider to use a Resampler ("Resampler").
If values don't fit in the value content area
The size of the value content area is a result of the general size of the Value Viewer, minus the left and right areas. In some cases, the values that should be displayed - depending on the size of the text type face - may not fit in that area. Whenever a value cannot be displayed entirely, it will be truncated and '...' will be written behind it, indicating that the value is not complete.Normally, values should be displayed entirely, so you have to take care that the Value Viewer is large enough to display all possible values. The truncation feature is only there to warn the end user that a value is not complete. If this situation occurs, the designer of the app is strongly encouraged to change its design in a way that the displays are large enough for the values that are displayed.
Please note that because of display resolution and text font settings of the operating system of your end user, the value content may be slightly larger than you intended it to be. This may lead to truncation of the displayed value.
About transparent backgrounds
The Value Viewer does not support (semi-)transparent backgrounds. If a background color has transparancy, the transparancy is removed and the 'full' color is used.About the text of the title
The optional title (header) of the Value Viewer will be tanslated to the currently active language. If the title contains variables, then those are normally not updated, because the title is assumed to be a static text.However, if a page becomes visible, or if a RESET is received by the Value Viewer, then the title is re-written, so that variables and tanslations are updated.