Vector events include features and extents. In the case of feature change events, the extents array will include old and new extents for features with modified geometries.w
The goog.events.EventType.CHANGE type is already dispatched because layers are ol.Object instances. To allow people to register for vector layer specific events without also having listeners get called with more general ol.Object change events, we need to give the types unique values.
With symbolizer literals now being geometry type specific, we no
longer need the overhead to query the RTree separately for each
geometry type and render symbolizer groups by geometry type.
The geometry type index of the FeatureCache is no longer needed.
The filtering functionality of the FeatureCache's
getFeaturesObject method can be removed because it is no longer
used.
Add zIndex property to symbolizers. Symbolizers with the same zIndex (in addition to other properties) are considered equal. A subsequent change will sort features by symbolizer zIndex before rendering.
The method in ol.Overlay is not exposed whereas is equivalent
getter getPositioning is visible in API and documentation.
The PR add a line of description to the documentation and expose
the method
In the typical sequence of parse-transform-render the most efficient place to transform coordinate values is deep within the parser immediately after values have been read (this would avoid a second pass over whatever structure is used to back geometries). To accomplish this transform during parsing, we could add back parser read options to pass the transform function around.
Until then, a transform method on geometries is straightforward to implement. This means we do a second pass through coordinate structures to transform, but this is typically done only once immediately after parsing.
