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It is possible to create multiple module parameter modifiers for a single module parameter file.
Module parameter modifiers can be applied in two ways:
- by overwriting the original values in the module parameter files,
- by adding an additional group to the module parameter file which contains the modified parameters.
The advantage of the first option is that the model adapter doesn't have to be changed to use module parameters.
The model receives a single set of module parameters in which the modifiers are already applied. In the second case the model parameter files contains the original values plus
one or more groups with the modified values. The model adapter has to create the modified set of module parameter values from this file.
The original set of module parameter values are always in the first group. This group always has the attribute modified set to false.
The additional groups contain the modified values and always have the attribute modified set to true;
Below an example of a modified module parameter file.
| Code Block | ||
|---|---|---|
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<?xml version="1.0" encoding="UTF-8"?>
<parameters xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.wldelft.nl/fews/PI" xsi:schemaLocation="http://www.wldelft.nl/fews/PI http://fews.wldelft.nl/schemas/version1.0/pi-schemas/pi_modelparameters.xsd" version="1.5">
<group id="default" readonly="false" modified="false">
<parameter id="UHG_DURATION" name="UHG_DURATION">
<intValue>6</intValue>
</parameter>
<parameter id="UNIT" name="UNIT">
<stringValue>ENGLISH</stringValue>
</parameter>
<parameter id="UHG_INTERVAL" name="UHG_INTERVAL">
<intValue>6</intValue>
</parameter>
<parameter id="DRAINAGE_AREA" name="DRAINAGE_AREA">
<dblValue>3103.0</dblValue>
</parameter>
<parameter id="CONSTANT_BASE_FLOW" name="CONSTANT_BASE_FLOW">
<dblValue>111.0</dblValue>
</parameter>
<parameter id="UHG_ORDINATES" name="UHG_ORDINATES">
<table>
<columnTypes A="double"/>
<row A="7499.0"/>
<row A="16872.0"/>
<row A="29370.0"/>
<row A="39993.0"/>
<row A="48116.0"/>
<row A="43742.0"/>
<row A="38118.0"/>
<row A="31869.0"/>
<row A="24995.0"/>
<row A="18747.0"/>
<row A="13123.0"/>
<row A="8123.0"/>
<row A="5436.0"/>
<row A="3874.0"/>
<row A="2625.0"/>
<row A="1687.0"/>
<row A="1000.0"/>
<row A="500.0"/>
<row A="250.0"/>
<row A="62.0"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
</table>
</parameter>
</group>
<group id="default" readonly="false" modified="true">
<validPeriod>
<timeZone>0.0</timeZone>
<startDate date="2012-09-09" time="12:00:00"/>
<endDate date="2012-09-27" time="12:00:00"/>
</validPeriod>
<parameter id="UHG_DURATION" name="UHG_DURATION">
<intValue>6</intValue>
</parameter>
<parameter id="UNIT" name="UNIT">
<stringValue>ENGLISH</stringValue>
</parameter>
<parameter id="UHG_INTERVAL" name="UHG_INTERVAL">
<intValue>6</intValue>
</parameter>
<parameter id="DRAINAGE_AREA" name="DRAINAGE_AREA">
<dblValue>3103.0</dblValue>
</parameter>
<parameter id="CONSTANT_BASE_FLOW" name="CONSTANT_BASE_FLOW">
<dblValue>0.0</dblValue>
</parameter>
<parameter id="UHG_ORDINATES" name="UHG_ORDINATES">
<table>
<columnTypes A="double"/>
<row A="8666.18"/>
<row A="19498.05"/>
<row A="33941.3"/>
<row A="46217.72"/>
<row A="24331.23"/>
<row A="50550.24"/>
<row A="23027.725"/>
<row A="36829.26"/>
<row A="28885.35"/>
<row A="21664.88"/>
<row A="15165.53"/>
<row A="9387.31"/>
<row A="6282.09"/>
<row A="4476.97"/>
<row A="3033.57"/>
<row A="1949.57"/>
<row A="1155.65"/>
<row A="577.82"/>
<row A="288.91"/>
<row A="71.65"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
<row A="0.0"/>
</table>
</parameter>
</group>
</parameters> |
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