Conflict Resolution, GIS, Tacos
Published
Edited
Oct 12, 2021
Convert GeoTIFF to PNG using GeoRaster
import {file} from "@jashkenas/inputs"
parseGeoRaster = require("georaster")
viewof geotiff = file({
title : "file.tif",
description : "upload a GeoTIFF",
multiple : false,
})
arrayBuffer = await Files.buffer(geotiff)
georaster = parseGeoRaster(arrayBuffer)
height_over_width = georaster.height / georaster.width
height = height_over_width >= 1 ? 512 : Math.round(512 / height_over_width);
width = height_over_width <= 1 ? 512 : Math.round(512 / height_over_width);
canvas = georaster.toCanvas({ height, width })
saveFile = require("easy-file-saver").catch(() => window['saveFile'])
saveFile({ data: canvas, filename: "overview.png" })
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