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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.sis.measure</a></div>
<h2 title="Class ElevationAngle" class="title">Class ElevationAngle</h2>
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<li><a href="Angle.html" title="class in org.apache.sis.measure">Angle</a></li>
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<pre>public final class <span class="typeNameLabel">ElevationAngle</span>
extends <a href="Angle.html" title="class in org.apache.sis.measure">Angle</a></pre>
<div class="block">The angular height of an object measured from the horizontal plane.
The elevation angle is part of <cite>local topocentric coordinates</cite> together with azimuth and distance.
For visible objects the elevation is an angle between 0° and 90°.
<div class="note"><b>Note:</b>
<cite>Elevation angle</cite> and <cite>altitude angle</cite> may be used interchangeably.
Both <cite>altitude</cite> and <cite>elevation</cite> words are also used to describe the
height in meters above sea level.</div>
<div class="section">Immutability and thread safety</div>
This final class is immutable and thus inherently thread-safe.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.4</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../referencing/cs/CoordinateSystems.html#angle(org.opengis.referencing.cs.AxisDirection,org.opengis.referencing.cs.AxisDirection)"><code>Coordinate­Systems​.angle(Axis­Direction, Axis­Direction)</code></a>,
<a href="../../../../serialized-form.html#org.apache.sis.measure.ElevationAngle">Serialized Form</a></dd>
<p><font size="-1">Defined in the <code>sis-utility</code> module</font></p>
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<td class="colFirst"><code>static <a href="ElevationAngle.html" title="class in org.apache.sis.measure">ElevationAngle</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NADIR">NADIR</a></span></code></th>
<td class="colLast">
<div class="block">An elevation angle of -90° for an imaginary point directly below a location.</div>
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<td class="colFirst"><code>static <a href="ElevationAngle.html" title="class in org.apache.sis.measure">ElevationAngle</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ZENITH">ZENITH</a></span></code></th>
<td class="colLast">
<div class="block">An elevation angle of 90° for an imaginary point directly above a location.</div>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(double)">ElevationAngle</a></span>&#8203;(double&nbsp;ε)</code></th>
<td class="colLast">
<div class="block">Constructs a new elevation angle with the specified angular value.</div>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.String)">ElevationAngle</a></span>&#8203;(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;string)</code></th>
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<div class="block">Constructs a newly allocated <code>Elevation­Angle</code> object that contain the angular value
represented by the string.</div>
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<h3>Methods inherited from class&nbsp;<a href="Angle.html" title="class in org.apache.sis.measure">Angle</a></h3>
<code><a href="Angle.html#compareTo(org.apache.sis.measure.Angle)">compare­To</a>, <a href="Angle.html#degrees()">degrees</a>, <a href="Angle.html#equals(java.lang.Object)">equals</a>, <a href="Angle.html#formatTo(java.util.Formatter,int,int,int)">format­To</a>, <a href="Angle.html#hashCode()">hash­Code</a>, <a href="Angle.html#radians()">radians</a>, <a href="Angle.html#toString()">to­String</a></code></li>
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<pre>public static final&nbsp;<a href="ElevationAngle.html" title="class in org.apache.sis.measure">ElevationAngle</a> ZENITH</pre>
<div class="block">An elevation angle of 90° for an imaginary point directly above a location.
This is the opposite of <a href="#NADIR"><code>NADIR</code></a> direction.</div>
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<h4>NADIR</h4>
<pre>public static final&nbsp;<a href="ElevationAngle.html" title="class in org.apache.sis.measure">ElevationAngle</a> NADIR</pre>
<div class="block">An elevation angle of -90° for an imaginary point directly below a location.
This is the opposite of <a href="#ZENITH"><code>ZENITH</code></a> direction.</div>
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<h4>ElevationAngle</h4>
<pre>public&nbsp;ElevationAngle&#8203;(double&nbsp;ε)</pre>
<div class="block">Constructs a new elevation angle with the specified angular value.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>\u03b5</code> - elevation angle value in decimal degrees.</dd>
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<h4>ElevationAngle</h4>
<pre>public&nbsp;ElevationAngle&#8203;(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;string)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NumberFormatException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NumberFormatException</a></pre>
<div class="block">Constructs a newly allocated <code>Elevation­Angle</code> object that contain the angular value
represented by the string. The string should represent an angle in either fractional degrees
(e.g. 45.5°) or degrees with minutes and seconds (e.g. 45°30').</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>string</code> - a string to be converted to an <code>Elevation­Angle</code>.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NumberFormatException.html?is-external=true" title="class or interface in java.lang" class="externalLink">Number­Format­Exception</a></code> - if the string does not contain a parsable angle,
or represents an elevation angle.</dd>
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