static/apidocs/org/apache/sis/referencing/operation/transform/InterpolatedTransform.html - sis-site - Git at Google

 <!DOCTYPE HTML>
 <!-- NewPage -->
 <html lang="en">
 <head>
 <!-- Generated by javadoc (11.0.4) on Fri Sep 20 12:10:30 CEST 2019 -->
 <title>InterpolatedTransform (Apache SIS 1.0 API)</title>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <meta name="dc.created" content="2019-09-20">
 <meta name="keywords" content="org.apache.sis.referencing.operation.transform.InterpolatedTransform class">
 <meta name="keywords" content="createGeodeticTransformation()">
 <meta name="keywords" content="getSourceDimensions()">
 <meta name="keywords" content="getTargetDimensions()">
 <meta name="keywords" content="transform()">
 <meta name="keywords" content="inverse()">
 <meta name="keywords" content="computeHashCode()">
 <meta name="keywords" content="equals()">
 <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
 <link rel="stylesheet" type="text/css" href="../../../../../../sis.css" title="Style">
 <link rel="stylesheet" type="text/css" href="../../../../../../jquery/jquery-ui.css" title="Style">
 <script type="text/javascript" src="../../../../../../script.js"></script>
 <script type="text/javascript" src="../../../../../../jquery/jszip/dist/jszip.min.js"></script>
 <script type="text/javascript" src="../../../../../../jquery/jszip-utils/dist/jszip-utils.min.js"></script>
 <!--[if IE]>
 <script type="text/javascript" src="../../../../../../jquery/jszip-utils/dist/jszip-utils-ie.min.js"></script>
 <![endif]-->
 <script type="text/javascript" src="../../../../../../jquery/jquery-3.3.1.js"></script>
 <script type="text/javascript" src="../../../../../../jquery/jquery-migrate-3.0.1.js"></script>
 <script type="text/javascript" src="../../../../../../jquery/jquery-ui.js"></script>
 </head>
 <body>
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
             parent.document.title="InterpolatedTransform (Apache SIS 1.0 API)";
         }
     }
     catch(err) {
     }
 //-->
 var data = {"i0":10,"i1":9,"i2":10,"i3":10,"i4":10,"i5":10,"i6":10,"i7":10};
 var tabs = {65535:["t0","All Methods"],1:["t1","Static Methods"],2:["t2","Instance Methods"],8:["t4","Concrete Methods"]};
 var altColor = "altColor";
 var rowColor = "rowColor";
 var tableTab = "tableTab";
 var activeTableTab = "activeTableTab";
 var pathtoroot = "../../../../../../";
 var useModuleDirectories = false;
 loadScripts(document, 'script');</script>
 <noscript>
 <div>JavaScript is disabled on your browser.</div>
 </noscript>
 <header role="banner">
 <nav role="navigation">
 <div class="fixedNav">
 <!-- ========= START OF TOP NAVBAR ======= -->
 <div class="topNav"><a id="navbar.top">
 <!--   -->
 </a>
 <div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div>
 <a id="navbar.top.firstrow">
 <!--   -->
 </a>
 <ul class="navList" title="Navigation">
 <li><a href="../../../../../../index.html">Overview</a></li>
 <li><a href="package-summary.html">Package</a></li>
 <li class="navBarCell1Rev">Class</li>
 <li><a href="class-use/InterpolatedTransform.html">Use</a></li>
 <li><a href="package-tree.html">Tree</a></li>
 <li><a href="../../../../../../deprecated-list.html">Deprecated</a></li>
 <li><a href="../../../../../../index-all.html">Index</a></li>
 <li><a href="../../../../../../help-doc.html">Help</a></li>
 </ul>
 </div>
 <div class="subNav">
 <ul class="navList" id="allclasses_navbar_top">
 <li><a href="../../../../../../allclasses.html">All&nbsp;Classes</a></li>
 </ul>
 <ul class="navListSearch">
 <li><label for="search">SEARCH:</label>
 <input type="text" id="search" value="search" disabled="disabled">
 <input type="reset" id="reset" value="reset" disabled="disabled">
 </li>
 </ul>
 <div>
 <script type="text/javascript"><!--
   allClassesLink = document.getElementById("allclasses_navbar_top");
   if(window==top) {
     allClassesLink.style.display = "block";
   }
   else {
     allClassesLink.style.display = "none";
   }
   //-->
 </script>
 <noscript>
 <div>JavaScript is disabled on your browser.</div>
 </noscript>
 </div>
 <div>
 <ul class="subNavList">
 <li>Summary:&nbsp;</li>
 <li>Nested&nbsp;|&nbsp;</li>
 <li>Field&nbsp;|&nbsp;</li>
 <li><a href="#constructor.summary">Constr</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.summary">Method</a></li>
 </ul>
 <ul class="subNavList">
 <li>Detail:&nbsp;</li>
 <li>Field&nbsp;|&nbsp;</li>
 <li><a href="#constructor.detail">Constr</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.detail">Method</a></li>
 </ul>
 </div>
 <a id="skip.navbar.top">
 <!--   -->
 </a></div>
 <!-- ========= END OF TOP NAVBAR ========= -->
 </div>
 <div class="navPadding">&nbsp;</div>
 <script type="text/javascript"><!--
 $('.navPadding').css('padding-top', $('.fixedNav').css("height"));
 //-->
 </script>
 </nav>
 </header>
 <!-- ======== START OF CLASS DATA ======== -->
 <main role="main">
 <div class="header">
 <div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.sis.referencing.operation.transform</a></div>
 <h2 title="Class InterpolatedTransform" class="title">Class InterpolatedTransform</h2>
 </div>
 <div class="contentContainer">
 <ul class="inheritance">
 <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></li>
 <li>
 <ul class="inheritance">
 <li><a href="../../../io/wkt/FormattableObject.html" title="class in org.apache.sis.io.wkt">FormattableObject</a></li>
 <li>
 <ul class="inheritance">
 <li><a href="AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform</a></li>
 <li>
 <ul class="inheritance">
 <li><a href="DatumShiftTransform.html" title="class in org.apache.sis.referencing.operation.transform">DatumShiftTransform</a></li>
 <li>
 <ul class="inheritance">
 <li>InterpolatedTransform</li>
 </ul>
 </li>
 </ul>
 </li>
 </ul>
 </li>
 </ul>
 </li>
 </ul>
 <div class="description">
 <ul class="blockList">
 <li class="blockList">
 <dl>
 <dt>All Implemented Interfaces:</dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io" class="externalLink">Serializable</a></code>, <code><a href="../../../parameter/Parameterized.html" title="interface in org.apache.sis.parameter">Parameterized</a></code>, <code><a href="../../../util/LenientComparable.html" title="interface in org.apache.sis.util">LenientComparable</a></code>, <code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a></code></dd>
 </dl>
 <hr>
 <pre>public class <span class="typeNameLabel">InterpolatedTransform</span>
 extends <a href="DatumShiftTransform.html" title="class in org.apache.sis.referencing.operation.transform">DatumShiftTransform</a></pre>
 <div class="block">Transforms between two CRS by performing translations interpolated from a grid file.
  The source and target coordinate reference systems are typically, but not necessarily,
  two-dimensional <a href="../../crs/DefaultGeographicCRS.html" title="class in org.apache.sis.referencing.crs">geographic CRS</a>.
  The actual number of dimensions is determined by <a href="../../datum/DatumShiftGrid.html#getTranslationDimensions()"><code>DatumShiftGrid.getTranslationDimensions()</code></a>.

  <div class="note"><b>Example:</b>
  this transform is used for example with NADCON and NTv2 datum shift grids.</div>

  <div class="section">Input and output coordinates</div>
  First, <cite>"real world"</cite> input coordinates (<var>x</var>,<var>y</var>) are converted to
  <cite>grid</cite> coordinates (<var>gridX</var>, <var>gridY</var>), which are zero-based indices
  in the two-dimensional grid. This conversion is applied by an affine transform <em>before</em>
  to be passed to the <code>transform</code> methods of this <code>InterpolatedTransform</code> class.

  <p>Translation vectors are stored in the datum shift grid at the specified grid indices.
  If the grid indices are non-integer values, then the translations are interpolated using a bilinear interpolation.
  If the grid indices are outside the grid domain ([0 … <var>width</var>-1] × [0 … <var>height</var>-1]
  where <var>width</var> and <var>height</var> are the number of columns and rows in the grid),
  then the translations are extrapolated. The translation is finally added to the input coordinates.</p>

  <p>The input and output coordinates can have any number of dimensions, provided that they are the same
  than the number of <a href="../../datum/DatumShiftGrid.html#getTranslationDimensions()">translation dimensions</a>.
  However current implementation uses only the two first dimensions for interpolations in the grid.</p></div>
 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>0.7</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../datum/DatumShiftGrid.html" title="class in org.apache.sis.referencing.datum"><code>DatumShiftGrid</code></a>,
 <a href="../builder/LocalizationGridBuilder.html" title="class in org.apache.sis.referencing.operation.builder"><code>LocalizationGridBuilder</code></a>,
 <a href="../../../../../../serialized-form.html#org.apache.sis.referencing.operation.transform.InterpolatedTransform">Serialized Form</a></dd>

 <p><font size="-1">Defined in the <code>sis-referencing</code> module</font></p>
 </dl>
 </li>
 </ul>
 </div>
 <div class="summary">
 <ul class="blockList">
 <li class="blockList">
 <!-- ======== CONSTRUCTOR SUMMARY ======== -->
 <section role="region">
 <ul class="blockList">
 <li class="blockList"><a id="constructor.summary">
 <!--   -->
 </a>
 <h3>Constructor Summary</h3>
 <table class="memberSummary">
 <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier</th>
 <th class="colSecond" scope="col">Constructor</th>
 <th class="colLast" scope="col">Description</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>protected </code></td>
 <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.sis.referencing.datum.DatumShiftGrid)">InterpolatedTransform</a></span>&#8203;(<a href="../../datum/DatumShiftGrid.html" title="class in org.apache.sis.referencing.datum">DatumShiftGrid</a>&lt;T,&#8203;T&gt;&nbsp;grid)</code></th>
 <td class="colLast">
 <div class="block">Creates a transform for the given interpolation grid.</div>
 </td>
 </tr>
 </table>
 </li>
 </ul>
 </section>
 <!-- ========== METHOD SUMMARY =========== -->
 <section role="region">
 <ul class="blockList">
 <li class="blockList"><a id="method.summary">
 <!--   -->
 </a>
 <h3>Method Summary</h3>
 <table class="memberSummary">
 <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colSecond" scope="col">Method</th>
 <th class="colLast" scope="col">Description</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code>protected int</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#computeHashCode()">computeHashCode</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Computes a hash value for this transform.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>static &lt;T extends <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Quantity.html?is-external=true" title="class or interface in javax.measure" class="externalLink">Quantity</a>&lt;T&gt;&gt;<br><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createGeodeticTransformation(org.opengis.referencing.operation.MathTransformFactory,org.apache.sis.referencing.datum.DatumShiftGrid)">createGeodeticTransformation</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransformFactory.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransformFactory</a>&nbsp;factory,
                             <a href="../../datum/DatumShiftGrid.html" title="class in org.apache.sis.referencing.datum">DatumShiftGrid</a>&lt;T,&#8203;T&gt;&nbsp;grid)</code></th>
 <td class="colLast">
 <div class="block">Creates a transformation between two geodetic CRS.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#equals(java.lang.Object,org.apache.sis.util.ComparisonMode)">equals</a></span>&#8203;(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>&nbsp;object,
       <a href="../../../util/ComparisonMode.html" title="enum in org.apache.sis.util">ComparisonMode</a>&nbsp;mode)</code></th>
 <td class="colLast">
 <div class="block">Compares the specified object with this math transform for equality.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>int</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSourceDimensions()">getSourceDimensions</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Returns the number of input dimensions.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>int</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTargetDimensions()">getTargetDimensions</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Returns the number of target dimensions.</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#inverse()">inverse</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Returns the inverse of this interpolated transform.</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/Matrix.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">Matrix</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#transform(double%5B%5D,int,double%5B%5D,int,boolean)">transform</a></span>&#8203;(double[]&nbsp;srcPts,
          int&nbsp;srcOff,
          double[]&nbsp;dstPts,
          int&nbsp;dstOff,
          boolean&nbsp;derivate)</code></th>
 <td class="colLast">
 <div class="block">Applies the datum shift on a coordinate tuple and optionally returns the derivative at that location.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#transform(double%5B%5D,int,double%5B%5D,int,int)">transform</a></span>&#8203;(double[]&nbsp;srcPts,
          int&nbsp;srcOff,
          double[]&nbsp;dstPts,
          int&nbsp;dstOff,
          int&nbsp;numPts)</code></th>
 <td class="colLast">
 <div class="block">Transforms an arbitrary amount of coordinate tuples.</div>
 </td>
 </tr>
 </table>
 <ul class="blockList">
 <li class="blockList"><a id="methods.inherited.from.class.DatumShiftTransform">
 <!--   -->
 </a>
 <h3>Methods inherited from class&nbsp;<a href="DatumShiftTransform.html" title="class in org.apache.sis.referencing.operation.transform">DatumShiftTransform</a></h3>
 <code><a href="DatumShiftTransform.html#getContextualParameters()">getContextualParameters</a>, <a href="DatumShiftTransform.html#getParameterValues()">getParameterValues</a></code></li>
 </ul>
 <ul class="blockList">
 <li class="blockList"><a id="methods.inherited.from.class.AbstractMathTransform">
 <!--   -->
 </a>
 <h3>Methods inherited from class&nbsp;<a href="AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform</a></h3>
 <code><a href="AbstractMathTransform.html#derivative(org.opengis.geometry.DirectPosition)">derivative</a>, <a href="AbstractMathTransform.html#equals(java.lang.Object)">equals</a>, <a href="AbstractMathTransform.html#formatTo(org.apache.sis.io.wkt.Formatter)">formatTo</a>, <a href="AbstractMathTransform.html#getParameterDescriptors()">getParameterDescriptors</a>, <a href="AbstractMathTransform.html#hashCode()">hashCode</a>, <a href="AbstractMathTransform.html#isIdentity()">isIdentity</a>, <a href="AbstractMathTransform.html#transform(double%5B%5D,int,float%5B%5D,int,int)">transform</a>, <a href="AbstractMathTransform.html#transform(float%5B%5D,int,double%5B%5D,int,int)">transform</a>, <a href="AbstractMathTransform.html#transform(float%5B%5D,int,float%5B%5D,int,int)">transform</a>, <a href="AbstractMathTransform.html#transform(org.opengis.geometry.DirectPosition,org.opengis.geometry.DirectPosition)">transform</a>, <a href="AbstractMathTransform.html#tryConcatenate(boolean,org.opengis.referencing.operation.MathTransform,org.opengis.referencing.operation.MathTransformFactory)">tryConcatenate</a></code></li>
 </ul>
 <ul class="blockList">
 <li class="blockList"><a id="methods.inherited.from.class.FormattableObject">
 <!--   -->
 </a>
 <h3>Methods inherited from class&nbsp;<a href="../../../io/wkt/FormattableObject.html" title="class in org.apache.sis.io.wkt">FormattableObject</a></h3>
 <code><a href="../../../io/wkt/FormattableObject.html#print()">print</a>, <a href="../../../io/wkt/FormattableObject.html#toString()">toString</a>, <a href="../../../io/wkt/FormattableObject.html#toString(org.apache.sis.io.wkt.Convention)">toString</a>, <a href="../../../io/wkt/FormattableObject.html#toWKT()">toWKT</a></code></li>
 </ul>
 <ul class="blockList">
 <li class="blockList"><a id="methods.inherited.from.class.Object">
 <!--   -->
 </a>
 <h3>Methods inherited from class&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3>
 <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></li>
 </ul>
 <ul class="blockList">
 <li class="blockList"><a id="methods.inherited.from.class.MathTransform">
 <!--   -->
 </a>
 <h3>Methods inherited from interface&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a></h3>
 <code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true#toWKT()" title="class or interface in org.opengis.referencing.operation" class="externalLink">toWKT</a></code></li>
 </ul>
 </li>
 </ul>
 </section>
 </li>
 </ul>
 </div>
 <div class="details">
 <ul class="blockList">
 <li class="blockList">
 <!-- ========= CONSTRUCTOR DETAIL ======== -->
 <section role="region">
 <ul class="blockList">
 <li class="blockList"><a id="constructor.detail">
 <!--   -->
 </a>
 <h3>Constructor Detail</h3>
 <a id="&lt;init&gt;(org.apache.sis.referencing.datum.DatumShiftGrid)">
 <!--   -->
 </a>
 <ul class="blockListLast">
 <li class="blockList">
 <h4>InterpolatedTransform</h4>
 <pre>protected&nbsp;InterpolatedTransform&#8203;(<a href="../../datum/DatumShiftGrid.html" title="class in org.apache.sis.referencing.datum">DatumShiftGrid</a>&lt;T,&#8203;T&gt;&nbsp;grid)
                          throws <a href="../matrix/NoninvertibleMatrixException.html" title="class in org.apache.sis.referencing.operation.matrix">NoninvertibleMatrixException</a></pre>
 <div class="block">Creates a transform for the given interpolation grid.
  This <code>InterpolatedTransform</code> class works with coordinate values in <em>units of grid cell</em>
  For example input coordinates (4,5) is the position of the center of the cell at grid index (4,5).
  The output units are the same than the input units.

  <p>For converting geodetic coordinates, <code>InterpolatedTransform</code> instances need to be concatenated
  with the following affine transforms:

  <ul>
    <li><cite>Normalization</cite> before <code>InterpolatedTransform</code>
      for converting the geodetic coordinates into grid coordinates.</li>
    <li><cite>Denormalization</cite> after <code>InterpolatedTransform</code>
      for converting grid coordinates into geodetic coordinates.</li>
  </ul>

  After <code>InterpolatedTransform</code> construction,
  the full conversion chain including the above affine transforms can be created by
  <code><a href="DatumShiftTransform.html#getContextualParameters()">DatumShiftTransform.getContextualParameters()</a>.<a href="ContextualParameters.html#completeTransform(org.opengis.referencing.operation.MathTransformFactory,org.opengis.referencing.operation.MathTransform)">completeTransform</a>(factory, this)}</code>.</div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - dimension of the coordinate tuples and the translation unit.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>grid</code> - the grid of datum shifts from source to target datum.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../matrix/NoninvertibleMatrixException.html" title="class in org.apache.sis.referencing.operation.matrix">NoninvertibleMatrixException</a></code> - if the conversion from geodetic coordinates
          to grid indices can not be inverted.</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="#createGeodeticTransformation(org.opengis.referencing.operation.MathTransformFactory,org.apache.sis.referencing.datum.DatumShiftGrid)"><code>createGeodeticTransformation(MathTransformFactory, DatumShiftGrid)</code></a></dd>
 </dl>
 </li>
 </ul>
 </li>
 </ul>
 </section>
 <!-- ============ METHOD DETAIL ========== -->
 <section role="region">
 <ul class="blockList">
 <li class="blockList"><a id="method.detail">
 <!--   -->
 </a>
 <h3>Method Detail</h3>
 <a id="createGeodeticTransformation(org.opengis.referencing.operation.MathTransformFactory,org.apache.sis.referencing.datum.DatumShiftGrid)">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>createGeodeticTransformation</h4>
 <pre class="methodSignature">public static&nbsp;&lt;T extends <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Quantity.html?is-external=true" title="class or interface in javax.measure" class="externalLink">Quantity</a>&lt;T&gt;&gt;&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a>&nbsp;createGeodeticTransformation&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransformFactory.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransformFactory</a>&nbsp;factory,
                                                                                  <a href="../../datum/DatumShiftGrid.html" title="class in org.apache.sis.referencing.datum">DatumShiftGrid</a>&lt;T,&#8203;T&gt;&nbsp;grid)
                                                                           throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/util/FactoryException.html?is-external=true" title="class or interface in org.opengis.util" class="externalLink">FactoryException</a></pre>
 <div class="block">Creates a transformation between two geodetic CRS. This factory method combines the
  <code>InterpolatedTransform</code> instance with the steps needed for converting values between
  geodetic and grid coordinates.

  <div class="section">Unit of measurement</div>
  The unit of measurement is determined by <a href="../../datum/DatumShiftGrid.html#getCoordinateUnit()"><code>DatumShiftGrid.getCoordinateUnit()</code></a>:
  <ul>
    <li>If the datum shift unit <a href="../../../measure/Units.html#isAngular(javax.measure.Unit)">is angular</a>, then the transform
        will work with input and output coordinates in degrees of angle.</li>
    <li>If the datum shift unit <a href="../../../measure/Units.html#isLinear(javax.measure.Unit)">is linear</a>, then the transform
        will work with input and output coordinates in metres.</li>
    <li>If the datum shift unit <a href="../../../measure/Units.html#isTemporal(javax.measure.Unit)">is temporal</a>, then the transform
        will work with input and output coordinates in seconds.</li>
    <li>Generally for all units other than angular, the transform will work with input and output
        coordinates in the unit given by <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Unit.html?is-external=true#getSystemUnit()" title="class or interface in javax.measure" class="externalLink"><code>Unit.getSystemUnit()</code></a>.</li>
  </ul></div>
 <dl>
 <dt><span class="paramLabel">Type Parameters:</span></dt>
 <dd><code>T</code> - dimension of the coordinate tuples and the translation unit.</dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>factory</code> - the factory to use for creating the transform.</dd>
 <dd><code>grid</code> - the grid of datum shifts from source to target datum.
                   The <a href="../../datum/DatumShiftGrid.html#interpolateInCell(double,double,double%5B%5D)"><code>DatumShiftGrid.interpolateInCell(…)</code></a>
                   method shall compute translations from <em>source</em> to <em>target</em> as
                   <a href="../../datum/DatumShiftGrid.html#isCellValueRatio()">ratio of offsets divided by cell sizes</a>.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the transformation between geodetic coordinates.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/util/FactoryException.html?is-external=true" title="class or interface in org.opengis.util" class="externalLink">FactoryException</a></code> - if an error occurred while creating a transform.</dd>
 </dl>
 </li>
 </ul>
 <a id="getSourceDimensions()">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>getSourceDimensions</h4>
 <pre class="methodSignature">public final&nbsp;int&nbsp;getSourceDimensions()</pre>
 <div class="block">Returns the number of input dimensions.
  This fixed to <a href="../../datum/DatumShiftGrid.html#getTranslationDimensions()"><code>DatumShiftGrid.getTranslationDimensions()</code></a>.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true#getSourceDimensions()" title="class or interface in org.opengis.referencing.operation" class="externalLink">getSourceDimensions</a></code>&nbsp;in interface&nbsp;<code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a></code></dd>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="AbstractMathTransform.html#getSourceDimensions()">getSourceDimensions</a></code>&nbsp;in class&nbsp;<code><a href="AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the dimension of input points.</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../DefaultOperationMethod.html#getSourceDimensions()"><code>DefaultOperationMethod.getSourceDimensions()</code></a></dd>
 </dl>
 </li>
 </ul>
 <a id="getTargetDimensions()">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>getTargetDimensions</h4>
 <pre class="methodSignature">public final&nbsp;int&nbsp;getTargetDimensions()</pre>
 <div class="block">Returns the number of target dimensions.
  This fixed to <a href="../../datum/DatumShiftGrid.html#getTranslationDimensions()"><code>DatumShiftGrid.getTranslationDimensions()</code></a>.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true#getTargetDimensions()" title="class or interface in org.opengis.referencing.operation" class="externalLink">getTargetDimensions</a></code>&nbsp;in interface&nbsp;<code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a></code></dd>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="AbstractMathTransform.html#getTargetDimensions()">getTargetDimensions</a></code>&nbsp;in class&nbsp;<code><a href="AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the dimension of output points.</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../DefaultOperationMethod.html#getTargetDimensions()"><code>DefaultOperationMethod.getTargetDimensions()</code></a></dd>
 </dl>
 </li>
 </ul>
 <a id="transform(double[],int,double[],int,boolean)">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>transform</h4>
 <pre class="methodSignature">public&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/Matrix.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">Matrix</a>&nbsp;transform&#8203;(double[]&nbsp;srcPts,
                         int&nbsp;srcOff,
                         double[]&nbsp;dstPts,
                         int&nbsp;dstOff,
                         boolean&nbsp;derivate)
                  throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/TransformException.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">TransformException</a></pre>
 <div class="block">Applies the datum shift on a coordinate tuple and optionally returns the derivative at that location.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="AbstractMathTransform.html#transform(double%5B%5D,int,double%5B%5D,int,boolean)">transform</a></code>&nbsp;in class&nbsp;<code><a href="AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform</a></code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>srcPts</code> - the array containing the source coordinate (can not be <code>null</code>).</dd>
 <dd><code>srcOff</code> - the offset to the point to be transformed in the source array.</dd>
 <dd><code>dstPts</code> - the array into which the transformed coordinate is returned. May be the same than <code>srcPts</code>.
                    May be <code>null</code> if only the derivative matrix is desired.</dd>
 <dd><code>dstOff</code> - the offset to the location of the transformed point that is stored in the destination array.</dd>
 <dd><code>derivate</code> - <code>true</code> for computing the derivative, or <code>false</code> if not needed.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the matrix of the transform derivative at the given source position,
          or <code>null</code> if the <code>derivate</code> argument is <code>false</code>.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/TransformException.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">TransformException</a></code> - if the point can not be transformed or
          if a problem occurred while calculating the derivative.</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="AbstractMathTransform.html#derivative(org.opengis.geometry.DirectPosition)"><code>AbstractMathTransform.derivative(DirectPosition)</code></a>,
 <a href="AbstractMathTransform.html#transform(org.opengis.geometry.DirectPosition,org.opengis.geometry.DirectPosition)"><code>AbstractMathTransform.transform(DirectPosition, DirectPosition)</code></a>,
 <a href="MathTransforms.html#derivativeAndTransform(org.opengis.referencing.operation.MathTransform,double%5B%5D,int,double%5B%5D,int)"><code>MathTransforms.derivativeAndTransform(MathTransform, double[], int, double[], int)</code></a></dd>
 </dl>
 </li>
 </ul>
 <a id="transform(double[],int,double[],int,int)">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>transform</h4>
 <pre class="methodSignature">public&nbsp;void&nbsp;transform&#8203;(double[]&nbsp;srcPts,
                       int&nbsp;srcOff,
                       double[]&nbsp;dstPts,
                       int&nbsp;dstOff,
                       int&nbsp;numPts)
                throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/TransformException.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">TransformException</a></pre>
 <div class="block">Transforms an arbitrary amount of coordinate tuples.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true#transform(double%5B%5D,int,double%5B%5D,int,int)" title="class or interface in org.opengis.referencing.operation" class="externalLink">transform</a></code>&nbsp;in interface&nbsp;<code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a></code></dd>
 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><a href="AbstractMathTransform.html#transform(double%5B%5D,int,double%5B%5D,int,int)">transform</a></code>&nbsp;in class&nbsp;<code><a href="AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform</a></code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>srcPts</code> - the array containing the source point coordinates.</dd>
 <dd><code>srcOff</code> - the offset to the first point to be transformed in the source array.</dd>
 <dd><code>dstPts</code> - the array into which the transformed point coordinates are returned.
                  May be the same than <code>srcPts</code>.</dd>
 <dd><code>dstOff</code> - the offset to the location of the first transformed point that is stored in the destination array.</dd>
 <dd><code>numPts</code> - the number of point objects to be transformed.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/TransformException.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">TransformException</a></code> - if a point can not be transformed.</dd>
 </dl>
 </li>
 </ul>
 <a id="inverse()">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>inverse</h4>
 <pre class="methodSignature">public&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a>&nbsp;inverse()</pre>
 <div class="block">Returns the inverse of this interpolated transform.
  The source ellipsoid of the returned transform will be the target ellipsoid of this transform, and conversely.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true#inverse()" title="class or interface in org.opengis.referencing.operation" class="externalLink">inverse</a></code>&nbsp;in interface&nbsp;<code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a></code></dd>
 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><a href="AbstractMathTransform.html#inverse()">inverse</a></code>&nbsp;in class&nbsp;<code><a href="AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a transform from the target ellipsoid to the source ellipsoid of this transform.</dd>
 </dl>
 </li>
 </ul>
 <a id="computeHashCode()">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>computeHashCode</h4>
 <pre class="methodSignature">protected&nbsp;int&nbsp;computeHashCode()</pre>
 <div class="block">Computes a hash value for this transform. This method is invoked by <a href="AbstractMathTransform.html#hashCode()"><code>AbstractMathTransform.hashCode()</code></a> when first needed.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><a href="DatumShiftTransform.html#computeHashCode()">computeHashCode</a></code>&nbsp;in class&nbsp;<code><a href="DatumShiftTransform.html" title="class in org.apache.sis.referencing.operation.transform">DatumShiftTransform</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the hash code value. This value may change between different execution of the Apache SIS library.</dd>
 </dl>
 </li>
 </ul>
 <a id="equals(java.lang.Object,org.apache.sis.util.ComparisonMode)">
 <!--   -->
 </a>
 <ul class="blockListLast">
 <li class="blockList">
 <h4>equals</h4>
 <pre class="methodSignature">public&nbsp;boolean&nbsp;equals&#8203;(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>&nbsp;object,
                       <a href="../../../util/ComparisonMode.html" title="enum in org.apache.sis.util">ComparisonMode</a>&nbsp;mode)</pre>
 <div class="block">Compares the specified object with this math transform for equality.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../util/LenientComparable.html#equals(java.lang.Object,org.apache.sis.util.ComparisonMode)">equals</a></code>&nbsp;in interface&nbsp;<code><a href="../../../util/LenientComparable.html" title="interface in org.apache.sis.util">LenientComparable</a></code></dd>
 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><a href="DatumShiftTransform.html#equals(java.lang.Object,org.apache.sis.util.ComparisonMode)">equals</a></code>&nbsp;in class&nbsp;<code><a href="DatumShiftTransform.html" title="class in org.apache.sis.referencing.operation.transform">DatumShiftTransform</a></code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>object</code> - the object to compare with this transform.</dd>
 <dd><code>mode</code> - the strictness level of the comparison. Default to <a href="../../../util/ComparisonMode.html#STRICT"><code>STRICT</code></a>.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd><code>true</code> if the given object is considered equals to this math transform.</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../util/Utilities.html#deepEquals(java.lang.Object,java.lang.Object,org.apache.sis.util.ComparisonMode)"><code>Utilities.deepEquals(Object, Object, ComparisonMode)</code></a></dd>
 </dl>
 </li>
 </ul>
 </li>
 </ul>
 </section>
 </li>
 </ul>
 </div>
 </div>
 </main>
 <!-- ========= END OF CLASS DATA ========= -->
 <footer role="contentinfo">
 <nav role="navigation">
 <!-- ======= START OF BOTTOM NAVBAR ====== -->
 <div class="bottomNav"><a id="navbar.bottom">
 <!--   -->
 </a>
 <div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div>
 <a id="navbar.bottom.firstrow">
 <!--   -->
 </a>
 <ul class="navList" title="Navigation">
 <li><a href="../../../../../../index.html">Overview</a></li>
 <li><a href="package-summary.html">Package</a></li>
 <li class="navBarCell1Rev">Class</li>
 <li><a href="class-use/InterpolatedTransform.html">Use</a></li>
 <li><a href="package-tree.html">Tree</a></li>
 <li><a href="../../../../../../deprecated-list.html">Deprecated</a></li>
 <li><a href="../../../../../../index-all.html">Index</a></li>
 <li><a href="../../../../../../help-doc.html">Help</a></li>
 </ul>
 </div>
 <div class="subNav">
 <ul class="navList" id="allclasses_navbar_bottom">
 <li><a href="../../../../../../allclasses.html">All&nbsp;Classes</a></li>
 </ul>
 <div>
 <script type="text/javascript"><!--
   allClassesLink = document.getElementById("allclasses_navbar_bottom");
   if(window==top) {
     allClassesLink.style.display = "block";
   }
   else {
     allClassesLink.style.display = "none";
   }
   //-->
 </script>
 <noscript>
 <div>JavaScript is disabled on your browser.</div>
 </noscript>
 </div>
 <div>
 <ul class="subNavList">
 <li>Summary:&nbsp;</li>
 <li>Nested&nbsp;|&nbsp;</li>
 <li>Field&nbsp;|&nbsp;</li>
 <li><a href="#constructor.summary">Constr</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.summary">Method</a></li>
 </ul>
 <ul class="subNavList">
 <li>Detail:&nbsp;</li>
 <li>Field&nbsp;|&nbsp;</li>
 <li><a href="#constructor.detail">Constr</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.detail">Method</a></li>
 </ul>
 </div>
 <a id="skip.navbar.bottom">
 <!--   -->
 </a></div>
 <!-- ======== END OF BOTTOM NAVBAR ======= -->
 </nav>
 <p class="legalCopy"><small>Copyright &#169; 2010&#x2013;2019 <a href="https://www.apache.org/">The Apache Software Foundation</a>. All rights reserved.</small></p>
 </footer>
 </body>
 </html>