Tile View

The Tile View is a CygNet-aware container that displays real-time data in a series of tiled Detail controls, one for each facility provided. The tile view determines how many detail tiles to draw based on facility inheritance, and then fills itself in with a tile for each child of the parent facility, adjusting layout accordingly. The tile view allows you to build screens in a dynamic way with little maintenance, and easily add new points or facilities to a screen without additional scripting. Each detail tile in a tile view displays six elements:

• three tokenized text strings (top, middle and bottom). The control can display static text, such as a label, or dynamic text based on point or facility attributes. Dynamic text is built using tokens, which can represent real-time CVS point properties, point configuration properties, and facility properties.
• an alarm icon that can be configured to change color based on point state and change image based on alarm priority
• a small sparkline with configurable line color, date ranges, both relative and absolute, and live data updates
• an arrow icon that is scripted to flip the tile when clicked and display an object of your choosing showing related data on the reverse side of the detail tile. The object on the reverse side will receive its point configuration from the detail control.

The last three elements (alarm icon, sparkline, and flip icon) can be toggled on or off. The control's background and text color can be explicitly configured or sourced from the point state color defined for the associated point. Colors in the control can be overridden when a custom color palette is selected for the screen. The tile view has two display modes for its tiles:

• Single UDC — Where data for a single UDC is displayed and a tile will be created for each child of a parent facility
• Each UDC for Facility — Where facilities are queried for their associated UDCs and a tile will be created for each one

Additionally, each tile in the tile view includes a title bar showing the facility name and a maximize button. When clicked in run mode the tile will maximize and open a screen, object, or CygNet Studio screen populated with related data for the passed-in facility from the originating tile. The maximized screen or object can be minimized to return to the initial tile view. Each tile displays a context menu in run mode with access to CygNet point and alarm data, including alarm acknowledgment, current and history values, point and facility configuration, and trending point data on a default chart.

Property Inheritance

Property Inheritance

Property inheritance is a widely used concept in Canvas. The application supports an explicit relationship between screens, objects, and controls, where certain property values, such as SiteService and facility tags, are passed from one element to another via an inheritance framework. Screens, objects, and controls can be configured as property senders or property receivers and provide configuration options where you can explicitly define the source of the SiteService and facility. Depending on how you have your screens, objects, and controls set up, the SiteService and facility may come from any one of the following sources:

• from itself — indicated by selecting <Self> and then explicitly configuring the property
• inherited from the screen — indicated by selecting Screen, which is always present as a sender
• inherited from another control — indicated by selecting the Name of the sending control

Broadcasting

Screens and objects support an additional notification option to broadcast their SiteService and facility selection changes to other open screens running in the Canvas or Canvas View application. If configured, a <Broadcast> option is available to source the screen's SiteService and facility properties from another open screen.

For example, a text tool can be configured to get its facility from the screen and the screen can be configured to get its facility from a tag chooser. Or Screen_A might source its facility from Screen_B, which gets its facility from a tag chooser.

Receiver or Sender

The Tile View control supports property inheritance as a receiver of its SiteService and facility:

The Tile View does not send its SiteService or facility to other controls.

Related Topics