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The client UI for the filtering contains a couple of new controls that were not previously available with other input forms, the slider and multi-slider. These controls are useful for layer filtering because they provide an easier way to constrain a numeric value to a certain range but . But they’re also different in that they force a value to have to be chosen, that is a filter the that uses a slider for a value will always have that value applied when displaying the layer, which . This can be important when the table behind the layer contains a number of “sets” of data but only one should be displayed at a time, and the column behind the parameter is used to separate out the data into the various sets, for . A example , of this could be the year when the data in the table was generated and the user would only want to see a single year at a time, or for a layer with flood levels and you only want to show a single depth.
In addition to the filter panel, there is also a ToC panel right-click context menu item, weave.toc.filterLayer, that . This can be added to the ToC panel context menu to allow the user to filter a layer directly. It’s recommended that the layer filtering capability is provided either in the filter panel or context menu in a client and not both (as providing both could result in synchroisation is
item be used at one time.
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<!-- parameter examples -->
<!-- a parameter representing a floating point value between 2.5 and 26 with an increment of 0.5
and default value of 13 -->
<parameter id="level">
<label>Level (m)</label>
<controlType>slider</controlType>
<dataType>float</dataType>
<column>Level_mGH</column>
<minValue>2.5</minValue>
<maxValue>26</maxValue>
<value>13</value>
<increment>0.5</increment>
<decimalPrecision>1</decimalPrecision>
</parameter>
<!-- a parameter representing an integer value between 2011 and 2019 inclusive
with a default minimum of 2015 and default maximum of 2018 -->
<parameter id="study_year">
<label>Study Year</label>
<controlType>multislider</controlType>
<dataType>int</dataType>
<column>Study_year</column>
<minValue>2011</minValue>
<maxValue>2019</maxValue>
<leftValue>2015</leftValue>
<rightValue>2018</rightValue>
</parameter>
<!-- multiple grouped check boxes. Note in this case all checked boxes start as checked
but if none of the check boxes are checked all items would be displayed as well -->
<parameter id="location">
<label>Location</label>
<controlType>multicheck</controlType>
<column>Location</column>
<dataType>string</dataType>
<list label="Catchment, Todd" value="Todd Catchment" checked="true"/>
<list label="River, Adelaide" value="Adelaide River" checked="true"/>
<list label="River, McArthur" value="McArthur River" checked="true"/>
</parameter>
<!-- single check box. Note in thethis case since we've set a different true value
when this check box is checked the filter applied will be "Location='Adelaide River'"
rather than "Location=true" as would be the case if trueValue were nonot set -->
<parameter id="location">
<label>Adelaide River Only</label>
<controlType>check</controlType>
<column>Location</column>
<dataType>string</dataType>
<trueValue>Adelaide River</trueValue>
</parameter>
<!-- radio button -->
<parameter id="location">
<label>Location</label>
<controlType>radio</controlType>
<column>Location</column>
<dataType>string</dataType>
<value>Adelaide River</value>
<list label="Catchment, Todd" value="Todd Catchment"/>
<list label="River, Adelaide" value="Adelaide River"/>
<list label="River, McArthur" value="McArthur River"/>
</parameter>
<!-- list box -->
<parameter id="location">
<label>Location</label>
<controlType>list</controlType>
<dataSet>locations</dataSet>
<column>Location</column>
<dataType>string</dataType>
</parameter>
<!-- a basic text box. Note this format is discuorageddiscouraged as the user has no way of knowing
if the value they're entering is valid and may result in nothing being displayed -->
<parameter id="location">
<label>Location</label>
<controlType>text</controlType>
<column>Location</column>
<dataType>string</dataType>
</parameter>
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<client:config id="filtering"> <title>Example Filtering client</title> <!-- other config here --> <view id="weave.layerFilter"> <location>east</location> </view> <!-- other config here --> <view id="com.cohga.html.client.map.tocView"> <location>west</location> <label>Layers</label> <showFilterIcon>true</showFilterIcon> <contextmenu> <item action="weave.toc.filterLayer"/> </contextmenu> </view> </client:config> |