geotiff

import { fromUrl, GeoTIFFImage } from 'geotiff'; async function processGeoTIFF() { try { // Example URL for a small GeoTIFF file (e.g., a Cloud Optimized GeoTIFF). // In a real application, ensure the URL is accessible and CORS-friendly. const url = 'https://geotiffjs.github.io/geotiff.js/test/data/example.tif'; console.log(`Attempting to open GeoTIFF from URL: ${url}`); const tiff = await fromUrl(url); // Get the first image (most common case). GeoTIFFs can contain multiple images. const image: GeoTIFFImage = await tiff.getImage(); console.log(`Opened image: Width = ${image.getWidth()}, Height = ${image.getHeight()}`); // Read raster data for the first band. The 'readRasters' method returns an array of TypedArrays. // 'interleave: false' returns separate arrays for each band. const rasters = await image.readRasters({ interleave: false }); console.log(`Read raster data. Number of bands: ${rasters.length}`); if (rasters.length > 0 && rasters[0].length > 0) { console.log(`First pixel value (band 0): ${rasters[0][0]}`); } // Access image metadata, such as GeoKeys or other TIFF tags. const geoKeys = image.getGeoKeys(); console.log('GeoKeys (if present):', geoKeys); // Get the bounding box of the image in its projected coordinates. const boundingBox = image.getBoundingBox(); console.log('Bounding Box [minX, minY, maxX, maxY]:', boundingBox); console.log('Successfully processed GeoTIFF.'); } catch (error) { console.error('Error processing GeoTIFF:', error); } } processGeoTIFF();