Method whenProjectionDefined

src/mapml-viewer.js:1456–1478

(projection)

    return Promise.allSettled(layersReady);
  }
  whenProjectionDefined(projection) {
    return new Promise((resolve, reject) => {
      let interval, failureTimer;
      if (M[projection]) {
        resolve();
      } else {
        interval = setInterval(testForProjection, 200, projection);
        failureTimer = setTimeout(projectionNotDefined, 5000);
      }
      function testForProjection(p) {
        if (M[p]) {
          clearInterval(interval);
          clearTimeout(failureTimer);
          resolve();
        }
      }
      function projectionNotDefined() {
        clearInterval(interval);
        clearTimeout(failureTimer);
        reject('Timeout reached waiting for projection to be defined');
      }
    });
  }
  geojson2mapml(json, options = {}) {
    if (options.projection === undefined) {
      options.projection = this.projection;