import { RadarData, RadarStyle } from '../../types';

export interface RadarPoint {
    x: number;
    y: number;
    axisIndex: number;
    value: number;
}
export interface RadarGrid {
    levels: number;
    maxRadius: number;
    center: {
        x: number;
        y: number;
    };
    startAngle: number;
    angleStep: number;
}
export declare class RadarRenderer {
    private ctx;
    private width;
    private height;
    private grid;
    constructor(ctx: CanvasRenderingContext2D, width: number, height: number);
    /**
     * Convert radar data to screen coordinates
     */
    private dataToPoints;
    /**
     * Draw radar grid (background circles and radial lines)
     */
    drawGrid(data: RadarData, style: RadarStyle): void;
    /**
     * Draw axis labels
     */
    drawLabels(data: RadarData, style: RadarStyle): void;
    /**
     * Draw radar chart
     */
    drawRadar(data: RadarData, style: RadarStyle): void;
    /**
     * Render complete radar chart
     */
    render(data: RadarData, style: RadarStyle): void;
    /**
     * Render multiple radar charts (for comparison)
     */
    renderMultiple(datasets: {
        data: RadarData;
        style: RadarStyle;
    }[]): void;
    /**
     * Get screen coordinates for a specific axis
     */
    getAxisCoordinates(axisIndex: number, value: number, style: RadarStyle): {
        x: number;
        y: number;
    };
    /**
     * Update canvas dimensions
     */
    updateDimensions(width: number, height: number): void;
    /**
     * Get grid configuration
     */
    getGrid(): RadarGrid;
    /**
     * Set grid configuration
     */
    setGrid(grid: Partial<RadarGrid>): void;
}