An AnnotationLayer or a DimensionLayer that has no LabelDefinition of its own can be added to a map's operational layers. Their features will be automatically considered by the labeling process, to block labels from being placed such that they overlap the features. This Enums.LabelBarrierWeight property controls how much labels must avoid the layer's features.
Note: Other layer types which have their own LabelDefinition can also have their features treated as barriers, but this is controlled by their LabelDefinition::featureBoundaryOverlapStrategy and LabelDefinition::featureInteriorOverlapStrategy properties.
The LabelBarrierWeight can be one of: