Function clampToAntimeridian

topojson/bin/process_geodata.mjs:66–72

(inputFilepath, outputFilepath)

// Clamp x-coordinates to the antimeridian
function clampToAntimeridian(inputFilepath, outputFilepath) {
    outputFilepath ||= inputFilepath;
    const jsonString = fs.readFileSync(inputFilepath, 'utf8');
    const updatedString = jsonString.replaceAll(/179\.9999\d+,/g, '180,').replaceAll(/180\.0000\d+,/g, '180,');

    fs.writeFileSync(outputFilepath, updatedString);
}

function pruneProperties(topojson) {
    for (const layer in topojson.objects) {