PeterI would advise you to use the QGIS rule based symbology to do what you require, the filter would be something like:-
/*your attribute_column _name*/ = 'carbonate rock' OR area_code = 'carbonate'
keeping it simple!! This should do the trick for you. Regards, Richard. On 14/10/2015 17:20, Schweitzer, Peter wrote:
Is there a QML reference document? What I really want to do is specify that two different category values will have the same symbol, like this: <category render="true" symbol="64" value="carbonate rock" label="Carbonate rock"/> <category render="true" symbol="64" value="carbonate" label="Carbonate rock"/> I want to read this as when the value of the attribute is EITHER "carbonate rock" OR "carbonate", render the feature using the symbol named "64" But this does not have the effect that I want, so I'm thinking incorrectly about how the QML file works. I would welcome advice on how to do what I want, or direction to the QML reference, or both. Thanks! Peter
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