The Canvas node defines how to retrieve, parse and analyze data from a live network. Each canvas is a relatively independent workflow and can finish a single task. The data generated in the Canvas node can be used as inputs for the next node in the Execution Flow. A complex Qapp may include multiple Canvas nodes.

How to open a Canvas node?

Use one of the following ways to open a Canvas node:

▪Right-click a Canvas node on the Execution Flow tab and select Open in the pop-up menu.

▪Double-click a Canvas node on the Execution Flow tab to open the Canvas node directly.
How to close Canvas nodes?

To close a Canvas, select the Canvas tab and click the icon.

Sub Nodes within a Canvas Node

▪Device Queue

▪Device (this)

▪Command

▪Table

▪Table Operator

▪Output

 

Setting Loop by Table

Note: Before setting the loop by table, make sure that you already create or import tables in the Global Table.

1.In the Canvas node, click the icon on the Canvas Editor.

2.Select the Loop by table check box to enable the setting. By default, it is disabled.

3.Click Add Table to select a table from a pop-up list and click OK.

Tip: The listed tables all come from the Table Input.

The table items are displayed in the table on the right side and the Canvas node will be looped based on the table items.

 

See also:

▪Variable

▪Creating a Qapp

▪If condition