Content - eaec7eb09cc66227e6f18e63ff594b65b46a57bd - 1bea1f1/orientation-event/free-fall-manual.html

visit type:

Tip revision: c2f248d611d9642f1be31c401e8c07171baa0824 authored by Luke Bjerring on 03 April 2018, 20:21:31 UTC
Merge upstream

Tip revision: c2f248d

free-fall-manual.html

<!DOCTYPE html>
<html>
  <head>
    <title>DeviceMotionEvent: A device in free-fall, with the screen horizontal and upmost</title>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <link rel="author' title='Mosquito FP7">
    <link rel="reviewer author" title="Zhiqiang Zhang" href="mailto:zhiqiang.zhang@intel.com"> <!-- 2013-10-14 -->
  </head>
  <body>
    <p>Free fall the device to run the test, with the screen horizontal and upmost.</p>
    <div id="log"></div>
    <script>
      var t = async_test(document.title);
      var run = false;

      /*
       * A device in free-fall, with the screen horizontal and upmost,
       * has an accelerationIncludingGravity of zero and
       * the following value for acceleration:
       * {
       *   x: 0,
       *   y: 0,
       *   z: -9.81
       * };
       */
      window.addEventListener("devicemotion", function(e) {
        if (!run) {
          run = true;
          t.step(function() {
            var gvt = e.accelerationIncludingGravity;
            var acc = e.acceleration;

            assert_approx_equals(gvt.x, 0, 1);
            assert_approx_equals(gvt.y, 0, 1);
            assert_approx_equals(gvt.z, 0, 1);

            assert_approx_equals(acc.x, 0, 1);
            assert_approx_equals(acc.y, 0, 1);
            assert_approx_equals(acc.z, -9.81, 1.5);
          });
          t.done();
        }
      }, false);
    </script>
  </body>
</html>

Browse the archive

https://github.com/web-platform-tests/wpt