@sk-global/hazard-risk/dist/utils.d.ts

A TypeScript library for analyzing hazard risks and calculating risk assessments

import { PNGWithMetadata } from 'pngjs';
import type { TileCoord, PixelCoord } from './types';
export declare const POW2_8: number;
export declare const POW2_16: number;
export declare const POW2_23: number;
export declare const POW2_24: number;
export declare const NO_DATA_R = 128;
export declare const NO_DATA_G = 0;
export declare const NO_DATA_B = 0;
export declare function latLngToTile(lat: number, lng: number, z: number): {
    tile: TileCoord;
    pixel: PixelCoord;
};
export declare function getPixelFromPNG(png: PNGWithMetadata | undefined, x: number, y: number): [number, number, number];
export declare function getPixelFromImageBitmap(imageBitmap: ImageBitmap, x: number, y: number): [number, number, number];
export declare function calculateElevationFromRGB(r: number, g: number, b: number): number | null;
export declare function preloadTiles<T>(tileCoords: {
    z: number;
    x: number;
    y: number;
}[], tileProviders: Array<(z: number, x: number, y: number) => Promise<T>>): Promise<void>;
export declare function createDEMUrlList(demConfigs: any[]): Array<any & {
    zoom: number;
}>;
export declare function readPNGFromBuffer(buffer: Buffer): PNGWithMetadata | undefined;