This component class defines variables in the equation model.
Use this class to create parts in Canvas Views to form an equation model that contains variables.
This class allows a single input link or no input link to Port 1.
When there are multiple output links, all will have the same value after evaluation.
Value (fValue): holds the current value of the variable.
Initialization (SG_xInit): puts the initial value to the unique input link, if existing, to prevent it from being wipe out during Evaluation cycles.
Evaluation (SG_xEval): takes the value from the unique input link, if existing, and place it in the Variable Value attribute and all the output links.
Port 1: (optional) connects to an input link from which the value is taken and stored. It can be linked only once (unique port). You have to delete the input link in order to connect a new link with it.
Port 2: connects to an output link that receives the variable value. It can be linked multiple times.
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Visual Calculator for SansGUI Version 1.1
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