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Chapter 5  Example 5: condition and nested condition in algorithm

From the principal window, choose File / Save as and save your fifth application under your tutorial folder with the name example5.

5.1  An algorithm with condition

5.1.1  Sensors x and i, actuator o

To create the sensors and the actuator:

• from the algorithm window: + green button → dialog window: Sensor x;
• from the algorithm window: + green button → dialog window: Sensor i;
• from the algorithm window: + green button → dialog window: Actuator o.

5.1.2  Function switch1

To create the switch1 function:

• from the algorithm window: + green button → dialog window: switch1;
• in the switch1 definition window:
  • contextual menu → Add port → dialog window: ? int x ? int i ! int o,
  • contextual menu → Create Condition → dialog window: x=1 x=2 x=3 x=4 (cf. figure 5.1):

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    Figure 5.1: Create Condition

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    • click on the condition x=1 (cf. figure 5.2) and create a reference div1<1> to the definition int/Arit_div,

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      Figure 5.2: Condition x=1

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    • click on the condition x=2 (cf. figure 5.3) and create a reference div2<1> to the definition int/Arit_div,

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      Figure 5.3: Condition x=2

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    • click on the condition x=3 (cf. figure 5.4) and connect the port i to the port o,

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      Figure 5.4: Condition x=3

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    • click on the condition x=4 (cf. figure 5.5) and create a reference mul4<1> to the definition int/Arit_mul;

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      Figure 5.5: Condition x=4

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  • create dependences between the references.

5.1.3  Algorithm AlgorithmMain1

The algorithm looks like the figure 5.6.

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Figure 5.6: AlgorithmMain1 of the Example 5

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5.2  An algorithm with nested condition

5.2.1  Sensors x and i, actuator o

Use previous definitions (cf. 5.1.1).

5.2.2  Function switch2

To create the switch2 function:

• from the algorithm window: + green button → dialog window: switch2;
• in its definition window:
  • contextual menu → Add port → dialog window: ? int x ? int y ! int o,
  • contextual menu → Create Condition → dialog window: y=1 y=2,
  • click on the condition y=1 (cf. figure 5.7) and create the function mul1<1> of the definition Arit_mul from int library,

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    Figure 5.7: Condition y=1

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  • click on the condition y=2 (cf. figure 5.8) and create a reference switch1 to the definition switch1;

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    Figure 5.8: Condition y=2

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• create dependences between the references.

5.2.3  Algorithm AlgorithmMain2

The algorithm looks like the figure 5.9.

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Figure 5.9: AlgorithmMain2 of the Example 5

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From the principal window, choose File / Close. In the dialog window, click on the Save button.

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