/**
 * Copyright (c) 2025-2026 mol* contributors, licensed under MIT, See LICENSE file for more info.
 *
 * @author Alexander Rose <alexander.rose@weirdbyte.de>
 * @author Ludovic Autin <autin@scripps.edu>
 */
import { Interval } from '../../../mol-data/int/interval.js';
import { OrderedSet } from '../../../mol-data/int/ordered-set.js';
import { PickingId } from '../../../mol-geo/geometry/picking.js';
import { LocationIterator } from '../../../mol-geo/util/location-iterator.js';
import { Sphere3D } from '../../../mol-math/geometry/primitives/sphere3d.js';
import { DataLocation } from '../../../mol-model/location.js';
import { DataLoci, Loci } from '../../../mol-model/loci.js';
import { Volume } from '../../../mol-model/volume/volume.js';
import { ParamDefinition as PD } from '../../../mol-util/param-definition.js';
import { Vec3 } from '../../../mol-math/linear-algebra/3d/vec3.js';
import { Mat4 } from '../../../mol-math/linear-algebra/3d/mat4.js';
export type StreamlinePoint = Vec3;
export type Streamline = StreamlinePoint[];
export type Streamlines = Streamline[];
export type StreamlinesIndex = {
    readonly '@type': 'streamlines-index';
} & number;
type VolumeStreamlines = {
    readonly volume: Volume;
    readonly streamlines: Streamlines;
};
export interface StreamlinesLocation extends DataLocation<VolumeStreamlines, {
    index: StreamlinesIndex;
    instance: Volume.InstanceIndex;
}> {
}
export declare function StreamlinesLocation(streamlines: Streamlines, volume: Volume, index?: StreamlinesIndex, instance?: Volume.InstanceIndex): StreamlinesLocation;
export declare function isStreamlinesLocation(x: any): x is StreamlinesLocation;
export declare function areStreamlinesLocationsEqual(locA: StreamlinesLocation, locB: StreamlinesLocation): boolean;
export declare function streamlinesLocationLabel(streamlines: Streamlines, volume: Volume, index: StreamlinesIndex, instance: Volume.InstanceIndex): string;
export declare function streamlinesLociLabel(streamlines: Streamlines, volume: Volume, elements: ReadonlyArray<StreamlinesElement>): string;
type StreamlinesElement = {
    readonly indices: OrderedSet<StreamlinesIndex>;
    readonly instances: OrderedSet<Volume.InstanceIndex>;
};
export interface StreamlinesLoci extends DataLoci<VolumeStreamlines, StreamlinesElement> {
}
export declare function StreamlinesLoci(streamlines: Streamlines, volume: Volume, elements: ReadonlyArray<StreamlinesElement>): StreamlinesLoci;
export declare function isStreamlinesLoci(x: any): x is StreamlinesLoci;
export declare function getStreamlinesLociSize(elements: StreamlinesLoci['elements']): number;
export declare function getStreamlinesLociBoundingSphere(streamlines: Streamlines, volume: Volume, elements: StreamlinesLoci['elements'], boundingSphere?: Sphere3D): Sphere3D;
export declare function areStreamlinesLociEqual(a: StreamlinesLoci, b: StreamlinesLoci): boolean;
export declare function isStreamlinesLociEmpty(loci: StreamlinesLoci): boolean;
export declare const CommonStreamlinesParams: {
    anchorEnabled: PD.BooleanParam;
    anchorCenter: PD.Vec3;
    anchorRadius: PD.Numeric;
    dashEnabled: PD.BooleanParam;
    dashPoints: PD.Numeric;
    dashShift: PD.BooleanParam;
};
export type CommonStreamlinesParams = typeof CommonStreamlinesParams;
export type CommonStreamlinesProps = PD.Values<CommonStreamlinesParams>;
/**
 * Check if a streamline passes the sphere filter.
 * A streamline passes if its start or end point is within the filter sphere.
 */
export declare function streamlinePassesFilter(streamline: Streamline, gridToCartn: Mat4, props: CommonStreamlinesProps): boolean;
export declare function getStreamlinesVisualLoci(volume: Volume, _props: CommonStreamlinesProps): StreamlinesLoci;
export declare function getStreamlinesLoci(pickingId: PickingId, volume: Volume, _key: number, _props: CommonStreamlinesProps, id: number): Volume.Loci | {
    kind: "empty-loci";
} | StreamlinesLoci;
export declare function eachStreamlines(loci: Loci, volume: Volume, _key: number, _props: CommonStreamlinesProps, apply: (interval: Interval) => boolean): boolean;
export declare function createStreamlinesLocationIterator(volume: Volume): LocationIterator;
export {};