import { LayerExtension } from '@deck.gl/core';
import type { Layer, LayerContext, Accessor } from '@deck.gl/core';
export type BrushingExtensionProps<DataT = any> = {
    /**
     * Called to retrieve an arbitrary position for each object that it will be filtered by.
     * Only effective if `brushingTarget` is set to `custom`.
     */
    getBrushingTarget?: Accessor<DataT, [number, number]>;
    /**
     * Enable/disable brushing. If brushing is disabled, all objects are rendered.
     * @default true
     */
    brushingEnabled?: boolean;
    /**
     * The position used to filter each object by.
     */
    brushingTarget?: 'source' | 'target' | 'source_target' | 'custom';
    /** The brushing radius centered at the pointer, in meters. If a data object is within this circle, it is rendered; otherwise it is hidden.
     * @default 10000
     */
    brushingRadius?: number;
};
/** Adds GPU-based data brushing functionalities to layers. It allows the layer to show/hide objects based on the current pointer position. */
export default class BrushingExtension extends LayerExtension {
    static defaultProps: {
        getBrushingTarget: {
            type: string;
            value: number[];
        };
        brushingTarget: string;
        brushingEnabled: boolean;
        brushingRadius: number;
    };
    static extensionName: string;
    getShaders(): any;
    initializeState(this: Layer<BrushingExtensionProps>, context: LayerContext, extension: this): void;
    finalizeState(this: Layer<BrushingExtensionProps>, context: LayerContext, extension: this): void;
}
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