import type { FileLoadData } from '../io/types';
import type { ScalarGrid3D } from '../isosurface/grid';
import type { Matrix3x3, Point2D, Vec2, Vec3 } from '../math';
import type { DefaultSettings } from '../settings';
import type { TooltipConfig, TooltipProp } from '../tooltip';
export type FermiSurfaceSettings = Omit<DefaultSettings[`fermi`], `fullscreen_toggle`>;
export type SpinChannel = `up` | `down` | null;
export type RepresentationMode = `solid` | `wireframe` | `transparent`;
export type ColorProperty = `band` | `spin` | `property`;
type ReciprocalCellType = `wigner_seitz` | `parallelepiped`;
export interface FermiIsosurface {
    positions: Float32Array;
    indices: Uint32Array;
    normals: Float32Array;
    properties?: Float32Array;
    band_index: number;
    spin: SpinChannel;
}
export declare const vertex_count: (surface: Pick<FermiIsosurface, `positions`>) => number;
export interface FermiSurfaceData {
    isosurfaces: FermiIsosurface[];
    k_lattice: Matrix3x3;
    fermi_energy: number;
    reciprocal_cell: ReciprocalCellType;
    metadata: FermiSurfaceMetadata;
}
export interface FermiSurfaceMetadata {
    n_bands: number;
    n_surfaces: number;
    source_format?: string;
}
export type BandEnergyGrid = ScalarGrid3D<Float64Array>;
export interface BandGridData {
    energies: BandEnergyGrid[][];
    k_grid: Vec3;
    k_lattice: Matrix3x3;
    fermi_energy: number;
    n_bands: number;
    n_spins: number;
    origin?: Vec3;
    periodic?: boolean;
    grid_shift?: Vec3;
}
export interface FermiSliceData {
    isolines: Isoline[];
    plane_normal: Vec3;
    plane_distance: number;
    k_lattice_2d: [Vec3, Vec3];
    metadata: {
        n_lines: number;
        has_properties: boolean;
    };
}
export interface Isoline {
    points: Vec3[];
    points_2d: Vec2[];
    properties?: number[];
    band_index: number;
    spin: SpinChannel;
    is_closed: boolean;
}
export interface FermiSurfaceOptions {
    mu?: number;
    interpolation_factor?: number;
}
export interface FermiSliceOptions {
    miller_indices?: Vec3;
    distance?: number;
}
export interface FermiFileLoadData extends FileLoadData {
    fermi_data?: FermiSurfaceData;
    band_data?: BandGridData;
    filename: string;
    file_size: number;
}
export interface FermiErrorData extends FileLoadData {
    error_msg: string;
}
export interface FermiHoverData {
    band_index: number;
    spin: SpinChannel;
    position_cartesian: Vec3;
    position_fractional: Vec3 | null;
    screen_position: Point2D;
    surface_color?: string;
    property_value?: number;
    property_name?: string;
    is_tiled?: boolean;
    symmetry_index?: number;
    n_symmetry_ops?: number;
}
export type FermiTooltipConfig = TooltipConfig<FermiHoverData>;
export type FermiTooltipProp = TooltipProp<FermiHoverData, [{
    hover_data: FermiHoverData;
}]>;
export declare const is_fermi_surface_data: (data: BandGridData | FermiSurfaceData | null) => data is FermiSurfaceData;
export declare const is_band_grid_data: (data: BandGridData | FermiSurfaceData | null) => data is BandGridData;
export {};