import { Canvas } from 'canvas';
import type { NodeChartData } from '../renderer/types.js';
export declare class NodeChartRenderer {
    private canvas;
    private ctx;
    private width;
    private height;
    private chartData?;
    constructor(width: number, height: number);
    renderChart(data: NodeChartData): Promise<void>;
    private drawChart;
    private drawChartType;
    exportChart(options: {
        format: 'png' | 'jpeg' | 'jpg';
        quality?: number;
    }): Promise<Buffer>;
    saveChart(outputPath: string, options: {
        format: 'png' | 'jpeg' | 'jpg';
        quality?: number;
    }): Promise<void>;
    chartElement(): Canvas;
}
export * from './types.js';
export * from './utils.js';
export * from './charts.js';
export * from './elements.js';