Merge pull request w3c#18 from pozdnyakov/reference_to_motion_sensors

Reference to Motion Sensors explainer

index.bs

@@ -65,6 +65,12 @@ urlPrefix: https://www.w3.org/TR/orientation-event; spec: DEVICEORIENTATION
     text: deviceorientation Event; url: deviceorientation
 </pre>
 
+<pre class="anchors">
+urlPrefix: https://w3c.github.io/motion-sensors; spec: MOTIONSENSORS
+  type: dfn
+    text: Absolute Orientation Sensor; url: absolute-orientation
+</pre>
+
 <pre class="link-defaults">
 spec:infra;
   type:dfn;
@@ -159,8 +165,8 @@ The elements of the [=list=] are equal to components of a unit quaternion [[QUAT
 [cos(θ/2), V<sub>x</sub> * sin(θ/2), V<sub>y</sub> * sin(θ/2), V<sub>z</sub> * sin(θ/2)] where V is
 the unit vector representing the axis of rotation.
 
-The {{AbsoluteOrientationSensor}} class is a subclass of {{OrientationSensor}} and it represents the absolute
-orientation sensor.
+The {{AbsoluteOrientationSensor}} class is a subclass of {{OrientationSensor}} which represents the [=Absolute
+Orientation Sensor=].
 
 The absolute orientation sensor is a [=high-level=] sensor which is created through [=sensor-fusion=]
 of the [=low-level=] motion sensors:

index.html

@@ -1430,7 +1430,7 @@
   <div class="head">
    <p data-fill-with="logo"><a class="logo" href="https://www.w3.org/"> <img alt="W3C" height="48" src="https://www.w3.org/StyleSheets/TR/2016/logos/W3C" width="72"> </a> </p>
    <h1 class="p-name no-ref" id="title">Orientation Sensor</h1>
-   <h2 class="no-num no-toc no-ref heading settled" id="subtitle"><span class="content">Editor’s Draft, <time class="dt-updated" datetime="2017-03-15">15 March 2017</time></span></h2>
+   <h2 class="no-num no-toc no-ref heading settled" id="subtitle"><span class="content">Editor’s Draft, <time class="dt-updated" datetime="2017-03-16">16 March 2017</time></span></h2>
    <div data-fill-with="spec-metadata">
     <dl>
      <dt>This version:
@@ -1572,8 +1572,8 @@ <h2 class="heading settled" data-level="4" id="model"><span class="secno">4. </s
    <p>A <a data-link-type="dfn" href="https://w3c.github.io/sensors#latest-reading">latest reading</a> per <a data-link-type="dfn" href="https://w3c.github.io/sensors#sensor">sensor</a> of orientation type includes an <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-entry">entry</a> whose <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-key">key</a> is "quaternion" and whose <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#map-value">value</a> contains a four element <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list">list</a>.
 The elements of the <a data-link-type="dfn" href="https://infra.spec.whatwg.org/#list">list</a> are equal to components of a unit quaternion <a data-link-type="biblio" href="#biblio-quaternions">[QUATERNIONS]</a> [cos(θ/2), V<sub>x</sub> * sin(θ/2), V<sub>y</sub> * sin(θ/2), V<sub>z</sub> * sin(θ/2)] where V is
 the unit vector representing the axis of rotation.</p>
-   <p>The <code class="idl"><a data-link-type="idl" href="#absoluteorientationsensor" id="ref-for-absoluteorientationsensor-2">AbsoluteOrientationSensor</a></code> class is a subclass of <code class="idl"><a data-link-type="idl" href="#orientationsensor" id="ref-for-orientationsensor-6">OrientationSensor</a></code> and it represents the absolute
-orientation sensor.</p>
+   <p>The <code class="idl"><a data-link-type="idl" href="#absoluteorientationsensor" id="ref-for-absoluteorientationsensor-2">AbsoluteOrientationSensor</a></code> class is a subclass of <code class="idl"><a data-link-type="idl" href="#orientationsensor" id="ref-for-orientationsensor-6">OrientationSensor</a></code> which represents the <a data-link-type="dfn" href="https://w3c.github.io/motion-sensors#absolute-orientation">Absolute
+Orientation Sensor</a>.</p>
    <p>The absolute orientation sensor is a <a data-link-type="dfn" href="https://w3c.github.io/sensors#high-level">high-level</a> sensor which is created through <a data-link-type="dfn" href="https://w3c.github.io/sensors#sensor-fusion">sensor-fusion</a> of the <a data-link-type="dfn" href="https://w3c.github.io/sensors#low-level">low-level</a> motion sensors:</p>
    <ul>
     <li data-md="">
@@ -1812,6 +1812,11 @@ <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span cla
     <ul>
      <li><a href="https://w3c.github.io/magnetometer#magnetic-field">magnetic field</a>
     </ul>
+   <li>
+    <a data-link-type="biblio">[motionsensors]</a> defines the following terms:
+    <ul>
+     <li><a href="https://w3c.github.io/motion-sensors#absolute-orientation">absolute orientation sensor</a>
+    </ul>
    <li>
     <a data-link-type="biblio">[WEBIDL]</a> defines the following terms:
     <ul>