Constant Node
==============

Overview
---------
The **Constant node** holds constant values which can be referenced in other nodes. 
It can hold integer, double, string, or boolean values as constants.

.. image:: images/Constant/constant_overview_1.png
   :align: center
		
.. image:: images/Constant/constant_overview_2.png
   :align: center

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Output 
---------
+-------------------------+-------------------+-----------------------------------------------------------------------------------+
| Output                  | Type              | Description                                                                       |
+=========================+===================+===================================================================================+
| Int                     | int               | Integer-type value inputted by the user.                                          |
+-------------------------+-------------------+-----------------------------------------------------------------------------------+
| Double                  | double            | Double-type value inputted by the user.                                           |
+-------------------------+-------------------+-----------------------------------------------------------------------------------+
| Bool                    | bool              | Boolean-type value inputted by the user.                                          |
+-------------------------+-------------------+-----------------------------------------------------------------------------------+
| String                  | string            | String-type value inputted by the user.                                           |
+-------------------------+-------------------+-----------------------------------------------------------------------------------+

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Node Settings
---------------

.. image:: images/Constant/constant_node_settings.png
   :align: center

- Int Field (Default: 0):
   Integer-type value to be inputted by user.

- Double Field (Default: 0):
   Double-type value to be inputted by user.

- Bool Field (Default: False):
   Boolean-type value to be inputted by user.

- String Field: 
   String-type value to be inputted by user. 

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Procedure to Use
-----------------

1. Set up the flowchart as in the following image:

.. image:: images/Constant/constant_procedure_1.png
   :scale: 100%	

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2. Click the Constant node. Type in a string into the String Field.

.. image:: images/Constant/constant_procedure_2.png
   :scale: 80%	

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3. Click the Print node. Link the string output from the Constant node.

.. image:: images/Constant/constant_procedure_3.png
   :scale: 80%	

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4. Click the Halt node, change the boolean to True. 

.. image:: images/Constant/constant_procedure_4.png
   :scale: 80%	

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5. Run the flowchart. You can see the string you typed into the Constant node is printed onto the console.

.. image:: images/Constant/constant_procedure_5.png
   :scale: 100%	

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