import type { ElementSymbol } from '../element';
import type { TrajectoryPositionStream } from '../trajectory';
export type TrajectoryLineColorMode = `element` | `time`;
export type TrajectoryLineWrapMode = `unwrap` | `break`;
interface TrajectoryLinesOptions {
    end_frame?: number;
    trail_frames?: number | null;
    frame_stride?: number;
    elements?: readonly ElementSymbol[] | null;
    color_mode?: TrajectoryLineColorMode;
    element_colors?: Partial<Record<ElementSymbol, string>>;
    wrap_mode?: TrajectoryLineWrapMode;
    anchor_positions?: Float64Array | null;
}
interface TrajectoryLinesGeometry {
    positions: Float32Array;
    colors: Float32Array;
    indices: Uint32Array;
    point_count: number;
    segment_count: number;
    atom_count: number;
    frame_idxs: number[];
    dropped_segments: number;
    max_segment_length: number;
}
export type TrajectoryLinesStats = Omit<TrajectoryLinesGeometry, `positions` | `colors` | `indices`>;
export declare const trajectory_lines_stats: ({ positions: _positions, colors: _colors, indices: _indices, ...stats }: TrajectoryLinesGeometry) => TrajectoryLinesStats;
export declare const collected_frame_idx: (stream: Pick<TrajectoryPositionStream, `n_frames` | `frame_stride`>, source_idx: number) => number;
export declare function build_trajectory_lines(stream: TrajectoryPositionStream, options?: TrajectoryLinesOptions): TrajectoryLinesGeometry;
export {};