Tutorial 5-Packaging the Sub-systems

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The models are already defined in stand-alone sub-systems, which means that each sub-system can be used as it is or by connecting it to other sub-systems. The problem is that in order to connect them a user must edit the different expressions – which is cumbersome in Ecolego and impossible to do in Ecolego Player.

You will now make sure that the relevant objects are exposed to other sub-systems as model inputs or outputs.

  1. Insert two empty cells into the Agricultural Land sub-system. It is recommended to put one in the upper left corner and the other in the bottom right corner.

  2. In the first cell, add a Model Input block.

    Screenshot

  3. Edit the Model Input. Click the Values tab.

  4. From the list of available objects, select the depRate block. Click Ok.

    Screenshot

  5. In the last cell, add a Model Output block.

  6. Edit the Model Output block.

  7. From the list of available objects, select the Conc_Air, Conc_Dust, Conc_Soil and Leaching blocks.

  8. Insert two empty cells into the Concentrations in Food sub-system.

  9. Add a Model Input and a Model Output block.

    Screenshot

  10. Edit the Model Input and select the Conc_Soil block.

  11. Edit the Model Output block and select the Conc_Crops block.

  12. Insert two empty cells into the Doses sub-system.

  13. Add a Model Input and a Model Output block.

  14. Edit the Model Input block and select the Conc_Air, Conc_Crop ,Conc_Food and Conc_Soil blocks.

  15. Edit the Model Output block and select the Dose_Total block.

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References