geotiff-no-data/geotiff-no-data.js

Get the Numerical No Data Value for a GeoTIFF. Supports Infinity.

const get_precise_no_data_value = require("geotiff-precise-no-data");

function getNoDataNumber(image) {
  const precise_no_data_value = get_precise_no_data_value(image);
  if (typeof precise_no_data_value === undefined) return;
  const no_data_value = Number(precise_no_data_value);
  if (isNaN(no_data_value)) return;
  return no_data_value;
}

if (typeof define === "function" && define.amd) {
  define(function() { return getNoDataNumber; });
}

if (typeof module === "object") {
  module.exports = getNoDataNumber;
  module.exports.default = getNoDataNumber;
}

if (typeof window === "object") {
  window.getNoDataNumber = getNoDataNumber;
}

if (typeof self === "object") {
  self.getNoDataNumber = getNoDataNumber;
}