import { TernaryData, TernaryOptions, CartesianPoint } from './types';

/**
 * Convert ternary coordinates (a, b, c) to Cartesian (x, y)
 *
 * The triangle is positioned with:
 * - A (top vertex) at (0.5, sqrt(3)/2)
 * - B (bottom-left) at (0, 0)
 * - C (bottom-right) at (1, 0)
 *
 * Formula:
 * x = c + b/2
 * y = b * sqrt(3)/2
 */
export declare function ternaryToCartesian(a: number, b: number, c: number): CartesianPoint;
/**
 * Convert arrays of ternary coordinates to Cartesian
 */
export declare function convertTernaryData(data: TernaryData): CartesianPoint[];
/**
 * Draw ternary grid lines
 */
export declare function drawTernaryGrid(ctx: CanvasRenderingContext2D, centerX: number, centerY: number, size: number, divisions?: number, gridColor?: string, gridWidth?: number): void;
/**
 * Draw ternary triangle outline
 */
export declare function drawTernaryOutline(ctx: CanvasRenderingContext2D, centerX: number, centerY: number, size: number, color?: string, lineWidth?: number): void;
/**
 * Draw ternary component labels
 */
export declare function drawTernaryLabels(ctx: CanvasRenderingContext2D, centerX: number, centerY: number, size: number, labelA?: string, labelB?: string, labelC?: string, fontSize?: number, color?: string): void;
/**
 * Render ternary scatter points
 */
export declare function renderTernaryPoints(ctx: CanvasRenderingContext2D, data: TernaryData, centerX: number, centerY: number, size: number, pointSize?: number, color?: string): void;
/**
 * Complete ternary plot renderer
 */
export declare function renderTernaryPlot(ctx: CanvasRenderingContext2D, data: TernaryData, options?: TernaryOptions): void;