This tutorial is for the new, online project designer. The tutorial for the Desktop Designer is available here .

Logic Point

Learn how the Logic point can be used and see it in action with the sample projects.

What is the Logic point?

The Logic point can be used to add conditional logic to your projects that can show/hide points and store a value when the conditions have been met. This point is especially useful in hiding points until another pre-requisite point has been completed or to display additional information if a point has a specific value.

Key Features

  • Can be used to control the visibility of other points.
  • Can output different values, depending on the current state of the conditional logic.
  • Supports a variety of condition types.
  • Can be configured with two conditions with the option of requiring one or both conditions to be be met.
  • More conditions can be added by chaining multiple Logic points together.

Logic point animation

Condition Types

The types of conditions that are available are list below:

Condition Description
= Is Equal to
<> Less than or Greater than
< Less than
> Greater than
<= Less than or Equal to
>= Greater than or Equal to
contains Contains
!contains Does not contain

Saving a Value to Session Data

By default, the Logic point does not save any data to the session. This feature can be enabled from the General tab, in the Logic point's properties window, by ticking the Include in Data checkbox. If this option is enabled, you will also be required to assign the point with an ID Name on the same tab.

Configuration and Settings

The Logic point can be configured in the Mobile Data Anywhere Designer to customise the behaviour of the point. See below for details on each of this point's properties.


Logic point web properties

Style

Basic Conditions

The first section of the properties window allows you to create logical conditions which can be used to show/hide points and change the output value of the Logic point. Each condition has three fields which can be set. From left to right:

  • Target Point
    This determines which point's value will be used to check against the condition and value.
  • Condition Type
    This is used as the operator for the comparison between the target point's value and the conditional value.
  • Conditional Value
    This is the value that will be compared with the target point's value, using the selected condition type.

Two conditions can be added to a Logic point with the option to require both conditions to be met, by ticking the And checkbox, or to require only one of the two conditions to be met, by ticking the Or checkbox.

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Advanced Logic

When using the Advanced Logic style, you can create as many conditions as desired. This new style provides the ability to create multiple joined conditions and introduces the ability to create groups of conditions that can also be joined together - similar to a mathematical equation and parenthesis.

Logic point advanced logic editor

Show Points

This is where you can select which points will become visible when the Logic point's conditions are met. To select a point, double click on the point in the list. Each select point will automatically be set to invisible when the condition is not met and will change to visible when the condition is met.

Output Settings

These settings determine the output value of the Logic point, which can be stored in the session data or used in other points, such as another Logic point. There are three optional output values that can be set for a Logic point which are used for each of the three states of a Logic point:

Only one output value will be used at one time and the value can be completely customised or can be selected from a list of pre-defined values such as; Yes/No, True/False, 1/0 .

Output when True

If the result of the conditions is True then this output will be used.

Output when False

If the result of the conditions is False then this output will be used.

Output when Indeterminate

This option will be used if the result of the conditions cannot be determined, either due to an empty target point value or incompatile value type. This is called the Indeterminate state.

Sample Projects

The Basic Points Sample project contains examples of how to use many of the various points that are available. This project also contains a page that demonstrates some of the ways that this point can be used in your projects.


Sample Projects
You can download the sample project for this tutorial or import the projects directly into your account.
Download the Sample Files Import the Basic Points Sample project

Sample 1: Logic Point

In the sample project basic_point_samples.ppc there is a Logic Point page which demonstrates a variety of uses for the Logic point. Open this project in the Mobile Data Anywhere Designer for a closer at how each point has been customised on each point's properties window.

Logic point sample