import { ScreenBounds } from "../common/screen-bounds";
import { ScreenXY } from "../common/screen-xy";
import { CRS } from "../crs/crs";
import { Raster } from "../raster/raster";
import { Layer } from "./layer";
/**
 * 栅格图层
 */
export declare class RasterLayer extends Layer {
    /**
     * 图层可交互设置
     */
    protected _interactive: boolean;
    private _raster;
    get raster(): Raster;
    set raster(value: Raster);
    private _crs;
    set crs(value: CRS);
    /**
     * 数据变换
     * @param {ScreenXY} origin - 窗口坐标原点
     * @param {number} zoom - 当前缩放级别
     */
    transform(origin: ScreenXY, zoom: number): void;
    /**
     * 绘制图层
     * @remarks
     * 遍历图形集合进行绘制
     * @param {CanvasRenderingContext2D} ctx - 绘图上下文
     * @param {Projection} projection - 坐标投影转换
     * @param {Bound} extent - 当前可视范围
     * @param {number} zoom - 当前缩放级别
     */
    draw(ctx: CanvasRenderingContext2D, zoom: number, redrawBounds?: ScreenBounds): void;
}