Central node types: Text, image, QR, barcode, and table

A central node is the endpoint of a workspace – the spider every thread runs to. Which kind of central node you use depends on what that workspace produces. There are five.

The five central nodes

• Text – places a text value: a name, a price, a description.
• Image – places an image into a frame, from a path or file name in your data.
• QR – generates a QR code from a value, such as a URL or product code.
• Barcode – generates a barcode from a value, in your chosen symbology.
• Table – builds a table from a record’s related rows, turning many rows into the lines of a table.

Each workspace has exactly one central node, and it’s one of these types – whichever matches what you’re producing.

They have no output

A central node is the destination, so it has no output socket. Data, styles, hyperlinks, and actions flow into it along the graph; nothing leaves the other side. That’s the visual giveaway that you’ve found the endpoint: wires arrive, none leave.

What feeds a central node

A central node takes the value it should place – pulled from your datasource, and optionally shaped by upstream nodes first (formatted, decided, restyled) – and renders it in the layout. Everything else in the graph exists to feed it.

The Table central node

Table is the special one: connect a data group to it and the workspace’s context switches to the secondary sheet, so the table fills with a record’s many related rows. It’s how "a list within a record" becomes a real table.

Next

See the nodes that bring values in: The Data Nodes