import type { PhaseData } from '../convex-hull/types';
import type { Vec2, Vec3 } from '../math';
import { type ChemPotDiagramConfig, type ChemPotDiagramData } from './types';
export declare function safe_energy_per_atom(entry: PhaseData): number;
export declare function formula_key_from_composition(composition: Record<string, number>): string;
export declare function entry_elements(entries: PhaseData[]): string[];
export declare function get_min_entries_and_el_refs(entries: PhaseData[]): {
    min_entries: PhaseData[];
    el_refs: Record<string, PhaseData>;
};
export declare function best_form_energy_for_formula(entries: PhaseData[], formula: string, el_refs: Record<string, PhaseData>): number | undefined;
export interface FormulaEnergyStats {
    matching_entry_count: number;
    min_energy_per_atom: number | null;
    max_energy_per_atom: number | null;
}
export declare function get_energy_stats_by_formula(entries: PhaseData[]): Map<string, FormulaEnergyStats>;
export declare const renormalize_entries: (entries: PhaseData[], el_refs: Record<string, PhaseData>, elements: string[]) => PhaseData[];
export declare function build_hyperplanes(min_entries: PhaseData[], el_refs: Record<string, PhaseData>, elements: string[]): {
    hyperplanes: number[][];
    hyperplane_entries: PhaseData[];
};
export declare function build_border_hyperplanes(lims: Vec2[]): number[][];
export declare function chebyshev_centre(entry_hs: number[][], lims: Vec2[]): {
    centre: number[];
    radius: number;
};
export declare function compute_domains(hyperplanes: number[][], lims: Vec2[], hyperplane_entries: PhaseData[]): Record<string, number[][]>;
export declare function apply_element_padding(domains: Record<string, number[][]>, elem_indices: number[], padding: number, default_min_limit: number): number[];
export declare function pad_domain_points(pts: number[][], elem_indices: number[], new_lims: number[], default_min_limit: number, padding: number): number[][];
export declare function build_axis_ranges(points: number[][], elements: string[]): {
    element: string;
    min_val: number;
    max_val: number;
}[];
export declare function simple_pca(data: number[][], k?: number): {
    scores: number[][];
    eigenvectors: number[][];
    means: number[];
};
export declare function orthonormal_2d(line_pts: number[][]): Vec2;
export declare function dedup_points(pts: number[][], tol?: number): {
    unique: number[][];
    orig_indices: number[];
};
export declare function get_3d_domain_simplexes_and_ann_loc(points_3d: number[][]): {
    simplex_indices: number[][];
    ann_loc: number[];
    is_planar: boolean;
};
export declare function bbox_diagonal(points: number[][]): number;
export declare function scale_to_font_range(sizes: number[], min_font: number, max_font: number): number[];
export declare const swizzle_to_render: (scale: Vec3) => (d0: number, d1: number, d2: number) => Vec3;
export interface VisibleDomainLabel {
    formula: string;
    position: [number, number, number];
    label_font_size: number;
}
export declare function get_visible_domain_labels(face_positions: ArrayLike<number>, face_domain_map: string[], label_font_size_by_formula: ReadonlyMap<string, number>, pinned_labels?: VisibleDomainLabel[]): VisibleDomainLabel[];
export declare const get_ternary_combinations: (elements: string[]) => string[][];
export declare function build_chempot_hyperplanes(entries: PhaseData[], elements: string[], formal_chempots: boolean): {
    min_entries: PhaseData[];
    el_refs: Record<string, PhaseData>;
    hyperplanes: number[][];
    hyperplane_entries: PhaseData[];
};
export declare function compute_chempot_diagram(entries: PhaseData[], config?: ChemPotDiagramConfig): ChemPotDiagramData;