API Reference > imodeljs-common > DisplayStyles > SpatialClassifiers SpatialClassifiers Class A set of SpatialClassifiers for a given reality model. At most one of the classifiers can be actively classifying the model at any given time. The set of classifiers can be presented to the user, listed by name, so that the active classifier can be changed. The set of classifiers is populated from its JSON representation and that representation is kept in sync as the set of classifiers is modified. see this (interactive example)[https://www.itwinjs.org/sample-showcase/?group=Viewer+Features&sample=classifier-sample]. see SpatialClassifier for details on how spatial classification works. see ContextRealityModel.classifiers to define classifiers for a context reality model. see SpatialModelState.classifiers to define classifiers for a persistent reality model. Implements Iterable<SpatialClassifier> Methods Name Description constructor(container: SpatialClassifiersContainer): SpatialClassifiers Construct a new set of classifiers from the JSON representation. [iterator](): Iterator<SpatialClassifier, any, undefined> Obtain an iterator over the classifiers contained in this set. add(classifier: SpatialClassifier): SpatialClassifier Add a classifier to this set. clear(): void Remove all classifiers from this set. delete(classifier: SpatialClassifier): undefined | SpatialClassifier Remove the first classifier equivalent to classifier from this set. find(criterion: (classifier: SpatialClassifier) => boolean): undefined | SpatialClassifier Returns the first classifier that satisfies criterion, or undefined if no classifier satisfies it. findEquivalent(classifier: SpatialClassifier): undefined | SpatialClassifier Find the first classifier that is equivalent to the supplied classifier, or undefined if no equivalent classifier exists in this set. has(classifier: SpatialClassifier): boolean Return true if the specified classifier or one equivalent to it exists in this set. replace(toReplace: SpatialClassifier, replacement: SpatialClassifier): boolean Replace an existing classifier with a different one. setActive(active: undefined | SpatialClassifier): undefined | SpatialClassifier Change the SpatialClassifiers.active classifier. Properties Name Type Description active Accessor ReadOnly undefined | SpatialClassifier The classifier currently classifying the target reality model, if any. size Accessor ReadOnly number The number of classifiers in this set. Defined in core/common/src/SpatialClassification.ts Line 225 Last Updated: 11 June, 2024