import type { PhaseData } from '../../convex-hull/types';
import type { ElementSymbol } from '../../element';
import { type Vec2 } from '../../math';
import type { Decomposition, DiagramPhase, DiagramProgress, IsothermalSection, PhaseFreeEnergy, Reaction, TernaryPhaseDiagram, TernaryPhaseDiagramOptions } from './types';
export declare const DEFAULT_N_SAMPLES = 64;
export declare const DEFAULT_EVENT_TOLERANCE = 0.5;
export interface DiagramModel {
    elements: [ElementSymbol, ElementSymbol, ElementSymbol];
    phases: DiagramPhase[];
    free_energies: PhaseFreeEnergy[];
    in_hull: boolean[];
    t_range: Vec2;
}
export declare function prepare_diagram(entries: PhaseData[], options?: TernaryPhaseDiagramOptions): DiagramModel;
export interface FacetAssignment {
    facets: number[][];
    facet_of: Int32Array;
    weights: Float64Array;
}
export declare function decompose_composition(model: Pick<DiagramModel, `phases`>, section: Pick<IsothermalSection, `facets`>, xy: Vec2): Decomposition | null;
export declare function decompose_phase(model: Pick<DiagramModel, `phases`>, section: IsothermalSection, phase: number): Decomposition | null;
export declare const compute_section: (model: DiagramModel, temperature: number) => IsothermalSection;
export declare function create_section_evaluator(model: DiagramModel, { events, sections, temperatures }: TernaryPhaseDiagram): {
    section_at(temperature: number): IsothermalSection;
};
export declare function compute_ternary_phase_diagram(entries: PhaseData[], options?: TernaryPhaseDiagramOptions, on_progress?: (progress: DiagramProgress) => void): TernaryPhaseDiagram;
export declare function reaction_phase_label(diagram: Pick<TernaryPhaseDiagram, `phases`>, reaction: Reaction, phase: number): string;
export declare const format_reaction_coeff: (coeff: number) => string;
export declare function format_reaction(diagram: Pick<TernaryPhaseDiagram, `phases`>, reaction: Reaction): string;