This page

is for application designers who need to configure functionality for components or events. It explains the properties for the calculate node and associated expressions, which is part of an actionflow.

Overview

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Use a 

node to manipulate data that is passed to it. Calculate

nodes have their own attributes, which can reference incoming data via expressions using one or more of the 115+ functions available in PhixFlow.

Example

Click to play the following video that shows an example of using a calculate node in an actionflow.

The video shows an actionflow

that opens a new screen containing a dynamic text field.

It then populates the dynamic text field with a message, which is set

in a calculate node attribute. The steps for

are:

1. Drag a calculate node from the toolbar and drop it into the actionflow diagram.
2. Name the calculate something meaningful, e.g. Set Message
3. Disconnect the

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   _action_screen _action_screen nopanel true

    node from the 

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   _driving_interface_connection_point _driving_interface_connection_point nopanel true

   .
4. Connect the 

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   _driving_interface_connection_point _driving_interface_connection_point nopanel true

   to the 

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   _action_calculate _action_calculate nopanel true

   node.

1. To pass data into the actionflow, go to the Inputs section on the left. Connect the component input connection point

1. ScreenToOpen to the calculate node.
2. Click on the calculate node to open its properties.
3. In the Attributes section, add a new calculate attribute and set:
   1. Name to Message

   2. Expression to:

      Code Block
      "You have successfully set up a calculate node"

      
      

4. Map the calculate attribute to the dynamic text field on the

1. screen as follows: 

   1. Right-click on the connection and click Configure Mappings.

   2. Drag the Message attribute from the calculate

1. 1. node, on the left, to the Message attribute on the open screen

1. 1. , on the right.
   2. Close the mapping screen.
2. The actionflow configuration is complete.

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_property_tabs _property_tabs name basic-h nopanel true

Basic Settings

Input Connection Points

This section has a toolbar with standard buttons. The grid contains a list of the connection points that connect into this calculate node.

• To add a new input connection point, in the section toolbar click 

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  _add _add nopanel true

    and set the properties.
• To edit an existing connection point, double-click it in the list to open its properties.
• To remove a connection points, select one and in the section toolbar click 

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  _delete _delete nopanel true

  .

For details about the Name, Type and Data Attributes properties of the input connection point, see Input Connection Points.

Calculate Attributes

Calculate actions process data using expressions; see pages in the topic Expressions and PhixScripts.

This section has a toolbar with standard buttons. The grid contains a list of the expressions that the calculate action will perform. 

• To add a new expression, in the section toolbar click 

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  _add _add nopanel true

   to open a new expression and set the properties.
• To edit an existing expression, double-click it in the list to open its properties.
• To remove an expression, select one and in the section toolbar click 

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  _delete _delete nopanel true

  .
• To reorder an attribute, drag and drop the attribute into the desired position. Alternatively, double-click to open its properties and update the Order field.
• Click 

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  _add _add nopanel true

  . PhixFlow opens the properties for a new calculate attribute; see Calculate Attributes Properties

• , below.

Calculate Attributes Properties 

Anchor
attribute attribute

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_property_tabs _property_tabs name basic-h nopanel true

Basic Settings

Save and close the calculate attribute properties to return to the calculate properties.