Combined Class/Property

The Combined Class/Property uses each item’s class to decide whether it is included or not. The possible classes are LineString, Point, Polygon etc.

The Combined Class/Property is similar to the Class Filter but has the additional feature that each node in the class tree, e.g. LineString, Point, etc., may have a partial clause, which is an expression, allowing further filtering, e.g. to find all of the Polygon items which are defined anti-clockwise. See Property Expression Syntax for details.

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