org.apache.sis.referencing/org/apache/sis/referencing/operation/transform/EllipsoidToCentricTransform.html - sis-site - Git at Google

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 <div class="sub-title"><span class="module-label-in-type">Module</span>&nbsp;<a href="../../../../../../module-summary.html">org.apache.sis.referencing</a></div>
 <div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.sis.referencing.operation.transform</a></div>
 <h1 title="Class EllipsoidToCentricTransform" class="title">Class EllipsoidToCentricTransform</h1>
 </div>
 <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>
 <div class="inheritance"><a href="../../../io/wkt/FormattableObject.html" title="class in org.apache.sis.io.wkt">FormattableObject</a>
 <div class="inheritance"><a href="AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform</a>
 <div class="inheritance">EllipsoidToCentricTransform</div>
 </div>
 </div>
 </div>
 <section class="class-description" id="class-description">
 <dl class="notes">
 <dt>All Implemented Interfaces:</dt>
 <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/Serializable.html" title="class or interface in java.io" class="external-link">Serializable</a></code>, <code><a href="../../../parameter/Parameterized.html" title="interface in org.apache.sis.parameter">Parameterized</a></code>, <code><a href="../../../../../../../org.apache.sis.util/org/apache/sis/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.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></code></dd>
 </dl>
 <hr>
 <div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">EllipsoidToCentricTransform</span>
 <span class="extends-implements">extends <a href="AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform</a>
 implements <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/Serializable.html" title="class or interface in java.io" class="external-link">Serializable</a></span></div>
 <div class="block">Transform from two- or three- dimensional ellipsoidal coordinates to (geo)centric coordinates.
  This transform is usually (but not necessarily) part of a conversion from
  <a href="../../crs/DefaultGeographicCRS.html" title="class in org.apache.sis.referencing.crs">geographic</a> to Cartesian
  <a href="../../crs/DefaultGeocentricCRS.html" title="class in org.apache.sis.referencing.crs">geocentric</a> coordinates.
  Each input coordinates is expected to contain:
  <ol>
    <li>longitude (λ) relative to the prime meridian (usually Greenwich),</li>
    <li>latitude (φ),</li>
    <li>optionally height above the ellipsoid (h).</li>
  </ol>

  Output coordinates are as below:
  <ul>
    <li>In the Cartesian case:
      <ol>
        <li>distance from Earth center on the X axis (toward the intersection of prime meridian and equator),</li>
        <li>distance from Earth center on the Y axis (toward the intersection of 90°E meridian and equator),</li>
        <li>distance from Earth center on the Z axis (toward North pole).</li>
      </ol>
    </li>
  </ul>

  The units of measurements depend on how the <code>MathTransform</code> has been created:
  <ul>
    <li><code>EllipsoidToCentricTransform</code> instances created directly by the constructor expect (λ,φ) values
        in radians and compute (X,Y,Z) values in units of an ellipsoid having a semi-major axis length of 1.</li>
    <li>Transforms created by the <a href="#createGeodeticConversion(org.opengis.referencing.operation.MathTransformFactory,double,double,javax.measure.Unit,boolean,org.apache.sis.referencing.operation.transform.EllipsoidToCentricTransform.TargetType)"><code>createGeodeticConversion(…)</code></a> static method expect
        (λ,φ) values in degrees and compute (X,Y,Z) values in units of the ellipsoid axes (usually metres).</li>
  </ul></div>
 <dl class="notes">
 <dt>Since:</dt>
 <dd>0.7</dd>
 <dt>See Also:</dt>
 <dd>
 <ul class="tag-list">
 <li><a href="../../../../../../../serialized-form.html#org.apache.sis.referencing.operation.transform.EllipsoidToCentricTransform">Serialized Form</a></li>
 </ul>
 </dd>
 </dl>
 </section>
 <section class="summary">
 <ul class="summary-list">
 <!-- ======== NESTED CLASS SUMMARY ======== -->
 <li>
 <section class="nested-class-summary" id="nested-class-summary">
 <h2>Nested Class Summary</h2>
 <div class="caption"><span>Nested Classes</span></div>
 <div class="summary-table three-column-summary">
 <div class="table-header col-first">Modifier and Type</div>
 <div class="table-header col-second">Class</div>
 <div class="table-header col-last">Description</div>
 <div class="col-first even-row-color"><code>static enum&nbsp;</code></div>
 <div class="col-second even-row-color"><code><a href="EllipsoidToCentricTransform.TargetType.html" class="type-name-link" title="enum class in org.apache.sis.referencing.operation.transform">EllipsoidToCentricTransform.TargetType</a></code></div>
 <div class="col-last even-row-color">
 <div class="block">Whether the output coordinate system is Cartesian or Spherical.</div>
 </div>
 </div>
 </section>
 </li>
 <!-- =========== FIELD SUMMARY =========== -->
 <li>
 <section class="field-summary" id="field-summary">
 <h2>Field Summary</h2>
 <div class="caption"><span>Fields</span></div>
 <div class="summary-table three-column-summary">
 <div class="table-header col-first">Modifier and Type</div>
 <div class="table-header col-second">Field</div>
 <div class="table-header col-last">Description</div>
 <div class="col-first even-row-color"><code>protected final double</code></div>
 <div class="col-second even-row-color"><code><a href="#eccentricitySquared" class="member-name-link">eccentricitySquared</a></code></div>
 <div class="col-last even-row-color">
 <div class="block">The square of eccentricity: ℯ² = (a²-b²)/a² where
  <var>a</var> is the <cite>semi-major</cite> axis length and
  <var>b</var> is the <cite>semi-minor</cite> axis length.</div>
 </div>
 </div>
 </section>
 </li>
 <!-- ======== CONSTRUCTOR SUMMARY ======== -->
 <li>
 <section class="constructor-summary" id="constructor-summary">
 <h2>Constructor Summary</h2>
 <div class="caption"><span>Constructors</span></div>
 <div class="summary-table two-column-summary">
 <div class="table-header col-first">Constructor</div>
 <div class="table-header col-last">Description</div>
 <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(double,double,javax.measure.Unit,boolean,org.apache.sis.referencing.operation.transform.EllipsoidToCentricTransform.TargetType)" class="member-name-link">EllipsoidToCentricTransform</a><wbr>(double&nbsp;semiMajor,
  double&nbsp;semiMinor,
  <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Unit.html" title="class or interface in javax.measure" class="external-link">Unit</a>&lt;<a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/quantity/Length.html" title="class or interface in javax.measure.quantity" class="external-link">Length</a>&gt;&nbsp;unit,
  boolean&nbsp;withHeight,
  <a href="EllipsoidToCentricTransform.TargetType.html" title="enum class in org.apache.sis.referencing.operation.transform">EllipsoidToCentricTransform.TargetType</a>&nbsp;target)</code></div>
 <div class="col-last even-row-color">
 <div class="block">Creates a transform from angles in radians on ellipsoid having a semi-major axis length of 1.</div>
 </div>
 </div>
 </section>
 </li>
 <!-- ========== METHOD SUMMARY =========== -->
 <li>
 <section class="method-summary" id="method-summary">
 <h2>Method Summary</h2>
 <div id="method-summary-table">
 <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
 <div id="method-summary-table.tabpanel" role="tabpanel">
 <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
 <div class="table-header col-first">Modifier and Type</div>
 <div class="table-header col-second">Method</div>
 <div class="table-header col-last">Description</div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected int</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#computeHashCode()" class="member-name-link">computeHashCode</a>()</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Computes a hash value for this transform.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#createGeodeticConversion(org.opengis.referencing.operation.MathTransformFactory,double,double,javax.measure.Unit,boolean,org.apache.sis.referencing.operation.transform.EllipsoidToCentricTransform.TargetType)" class="member-name-link">createGeodeticConversion</a><wbr>(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransformFactory.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransformFactory</a>&nbsp;factory,
  double&nbsp;semiMajor,
  double&nbsp;semiMinor,
  <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Unit.html" title="class or interface in javax.measure" class="external-link">Unit</a>&lt;<a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/quantity/Length.html" title="class or interface in javax.measure.quantity" class="external-link">Length</a>&gt;&nbsp;unit,
  boolean&nbsp;withHeight,
  <a href="EllipsoidToCentricTransform.TargetType.html" title="enum class in org.apache.sis.referencing.operation.transform">EllipsoidToCentricTransform.TargetType</a>&nbsp;target)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
 <div class="block">Creates a transform from geographic to geocentric coordinates.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#createGeodeticConversion(org.opengis.referencing.operation.MathTransformFactory,org.opengis.referencing.datum.Ellipsoid,boolean)" class="member-name-link">createGeodeticConversion</a><wbr>(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransformFactory.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransformFactory</a>&nbsp;factory,
  <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/datum/Ellipsoid.html" title="class or interface in org.opengis.referencing.datum" class="external-link">Ellipsoid</a>&nbsp;ellipsoid,
  boolean&nbsp;withHeight)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
 <div class="block">Creates a transform from geographic to Cartesian geocentric coordinates (convenience method).</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/Matrix.html" title="class or interface in org.opengis.referencing.operation" class="external-link">Matrix</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#derivative(org.opengis.geometry.DirectPosition)" class="member-name-link">derivative</a><wbr>(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/geometry/DirectPosition.html" title="class or interface in org.opengis.geometry" class="external-link">DirectPosition</a>&nbsp;point)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Computes the derivative at the given location.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>boolean</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#equals(java.lang.Object,org.apache.sis.util.ComparisonMode)" class="member-name-link">equals</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&nbsp;object,
  <a href="../../../../../../../org.apache.sis.util/org/apache/sis/util/ComparisonMode.html" title="enum class in org.apache.sis.util">ComparisonMode</a>&nbsp;mode)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Compares the specified object with this math transform for equality.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="ContextualParameters.html" title="class in org.apache.sis.referencing.operation.transform">ContextualParameters</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getContextualParameters()" class="member-name-link">getContextualParameters</a>()</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns the parameters used for creating the complete conversion.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getParameterDescriptors()" class="member-name-link">getParameterDescriptors</a>()</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns a description of the internal parameters of this <code>EllipsoidToCentricTransform</code> transform.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterValueGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterValueGroup</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getParameterValues()" class="member-name-link">getParameterValues</a>()</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns a copy of internal parameter values of this <code>EllipsoidToCentricTransform</code> transform.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final int</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getSourceDimensions()" class="member-name-link">getSourceDimensions</a>()</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Gets the dimension of input points, which is 2 or 3.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final int</code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getTargetDimensions()" class="member-name-link">getTargetDimensions</a>()</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Gets the dimension of output points, which is 3.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final <a href="EllipsoidToCentricTransform.TargetType.html" title="enum class in org.apache.sis.referencing.operation.transform">EllipsoidToCentricTransform.TargetType</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getTargetType()" class="member-name-link">getTargetType</a>()</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns whether the target coordinate system is Cartesian or Spherical.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#inverse()" class="member-name-link">inverse</a>()</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns the inverse of this transform.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected void</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#inverseTransform(double%5B%5D,int,double%5B%5D,int,int)" class="member-name-link">inverseTransform</a><wbr>(double[]&nbsp;srcPts,
  int&nbsp;srcOff,
  double[]&nbsp;dstPts,
  int&nbsp;dstOff,
  int&nbsp;numPts)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Converts Cartesian coordinates (<var>X</var>,<var>Y</var>,<var>Z</var>) to ellipsoidal coordinates
  (λ,φ) or (λ,φ,<var>h</var>).</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/Matrix.html" title="class or interface in org.opengis.referencing.operation" class="external-link">Matrix</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#transform(double%5B%5D,int,double%5B%5D,int,boolean)" class="member-name-link">transform</a><wbr>(double[]&nbsp;srcPts,
  int&nbsp;srcOff,
  double[]&nbsp;dstPts,
  int&nbsp;dstOff,
  boolean&nbsp;derivate)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Converts the (λ,φ) or (λ,φ,<var>h</var>) geodetic coordinates to
  to (<var>X</var>,<var>Y</var>,<var>Z</var>) geocentric coordinates,
  and optionally returns the derivative at that location.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#transform(double%5B%5D,int,double%5B%5D,int,int)" class="member-name-link">transform</a><wbr>(double[]&nbsp;srcPts,
  int&nbsp;srcOff,
  double[]&nbsp;dstPts,
  int&nbsp;dstOff,
  int&nbsp;numPts)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Converts the (λ,φ) or (λ,φ,<var>h</var>) geodetic coordinates to
  to (<var>X</var>,<var>Y</var>,<var>Z</var>) geocentric coordinates.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#tryConcatenate(boolean,org.opengis.referencing.operation.MathTransform,org.opengis.referencing.operation.MathTransformFactory)" class="member-name-link">tryConcatenate</a><wbr>(boolean&nbsp;applyOtherFirst,
  <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a>&nbsp;other,
  <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransformFactory.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransformFactory</a>&nbsp;factory)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">If this transform expects three-dimensional inputs, and if the transform just before this one
  unconditionally sets the height to zero, then replaces this transform by a two-dimensional one.</div>
 </div>
 </div>
 </div>
 </div>
 <div class="inherited-list">
 <h3 id="methods-inherited-from-class-AbstractMathTransform">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#equals(java.lang.Object)">equals</a>, <a href="AbstractMathTransform.html#formatTo(org.apache.sis.io.wkt.Formatter)">formatTo</a>, <a href="AbstractMathTransform.html#getDomain(org.apache.sis.referencing.operation.transform.DomainDefinition)">getDomain</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></code></div>
 <div class="inherited-list">
 <h3 id="methods-inherited-from-class-FormattableObject">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></div>
 <div class="inherited-list">
 <h3 id="methods-inherited-from-class-Object">Methods inherited from class&nbsp;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
 <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
 <div class="inherited-list">
 <h3 id="methods-inherited-from-class-MathTransform">Methods inherited from interface&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></h3>
 <code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html#toWKT()" title="class or interface in org.opengis.referencing.operation" class="external-link">toWKT</a></code></div>
 </section>
 </li>
 </ul>
 </section>
 <section class="details">
 <ul class="details-list">
 <!-- ============ FIELD DETAIL =========== -->
 <li>
 <section class="field-details" id="field-detail">
 <h2>Field Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="eccentricitySquared">
 <h3>eccentricitySquared</h3>
 <div class="member-signature"><span class="modifiers">protected final</span>&nbsp;<span class="return-type">double</span>&nbsp;<span class="element-name">eccentricitySquared</span></div>
 <div class="block">The square of eccentricity: ℯ² = (a²-b²)/a² where
  <var>a</var> is the <cite>semi-major</cite> axis length and
  <var>b</var> is the <cite>semi-minor</cite> axis length.</div>
 </section>
 </li>
 </ul>
 </section>
 </li>
 <!-- ========= CONSTRUCTOR DETAIL ======== -->
 <li>
 <section class="constructor-details" id="constructor-detail">
 <h2>Constructor Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="&lt;init&gt;(double,double,javax.measure.Unit,boolean,org.apache.sis.referencing.operation.transform.EllipsoidToCentricTransform.TargetType)">
 <h3>EllipsoidToCentricTransform</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">EllipsoidToCentricTransform</span><wbr><span class="parameters">(double&nbsp;semiMajor,
  double&nbsp;semiMinor,
  <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Unit.html" title="class or interface in javax.measure" class="external-link">Unit</a>&lt;<a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/quantity/Length.html" title="class or interface in javax.measure.quantity" class="external-link">Length</a>&gt;&nbsp;unit,
  boolean&nbsp;withHeight,
  <a href="EllipsoidToCentricTransform.TargetType.html" title="enum class in org.apache.sis.referencing.operation.transform">EllipsoidToCentricTransform.TargetType</a>&nbsp;target)</span></div>
 <div class="block">Creates a transform from angles in radians on ellipsoid having a semi-major axis length of 1.
  More specifically <code>EllipsoidToCentricTransform</code> instances expect input coordinates
  as below:

  <ol>
    <li>longitudes in <strong>radians</strong> relative to the prime meridian (usually Greenwich),</li>
    <li>latitudes in <strong>radians</strong>,</li>
    <li>optionally heights above the ellipsoid, in units of an ellipsoid having a semi-major axis length of 1.</li>
  </ol>

  Output coordinates are as below, in units of an ellipsoid having a semi-major axis length of 1:
  <ol>
    <li>distance from Earth center on the X axis (toward the intersection of prime meridian and equator),</li>
    <li>distance from Earth center on the Y axis (toward the intersection of 90°E meridian and equator),</li>
    <li>distance from Earth center on the Z axis (toward North pole).</li>
  </ol>

  <h4 id="geographic-to-geocentric-conversions-heading">Geographic to geocentric conversions</h4>
  For converting geographic coordinates to geocentric coordinates, <code>EllipsoidToCentricTransform</code>
  instances need to be concatenated with the following affine transforms:

  <ul>
    <li><cite>Normalization</cite> before <code>EllipsoidToCentricTransform</code>:<ul>
      <li>Conversion of (λ,φ) from degrees to radians</li>
      <li>Division of (h) by the semi-major axis length</li>
    </ul></li>
    <li><cite>Denormalization</cite> after <code>EllipsoidToCentricTransform</code>:<ul>
      <li>Multiplication of (X,Y,Z) by the semi-major axis length</li>
    </ul></li>
  </ul>

  After <code>EllipsoidToCentricTransform</code> construction,
  the full conversion chain including the above affine transforms can be created by
  <code><a href="#getContextualParameters()">getContextualParameters()</a>.<a href="ContextualParameters.html#completeTransform(org.opengis.referencing.operation.MathTransformFactory,org.opengis.referencing.operation.MathTransform)">completeTransform</a>(factory, this)}</code>.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>semiMajor</code> - the semi-major axis length.</dd>
 <dd><code>semiMinor</code> - the semi-minor axis length.</dd>
 <dd><code>unit</code> - the unit of measurement for the semi-axes and the ellipsoidal height.</dd>
 <dd><code>withHeight</code> - <code>true</code> if source geographic coordinates include an ellipsoidal height
                     (i.e. are 3-D), or <code>false</code> if they are only 2-D.</dd>
 <dd><code>target</code> - whether the target coordinate shall be Cartesian or Spherical.</dd>
 <dt>See Also:</dt>
 <dd>
 <ul class="tag-list-long">
 <li><a href="#createGeodeticConversion(org.opengis.referencing.operation.MathTransformFactory,double,double,javax.measure.Unit,boolean,org.apache.sis.referencing.operation.transform.EllipsoidToCentricTransform.TargetType)"><code>createGeodeticConversion(MathTransformFactory, double, double, Unit, boolean, TargetType)</code></a></li>
 </ul>
 </dd>
 </dl>
 </section>
 </li>
 </ul>
 </section>
 </li>
 <!-- ============ METHOD DETAIL ========== -->
 <li>
 <section class="method-details" id="method-detail">
 <h2>Method Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="createGeodeticConversion(org.opengis.referencing.operation.MathTransformFactory,double,double,javax.measure.Unit,boolean,org.apache.sis.referencing.operation.transform.EllipsoidToCentricTransform.TargetType)">
 <h3>createGeodeticConversion</h3>
 <div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></span>&nbsp;<span class="element-name">createGeodeticConversion</span><wbr><span class="parameters">(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransformFactory.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransformFactory</a>&nbsp;factory,
  double&nbsp;semiMajor,
  double&nbsp;semiMinor,
  <a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/Unit.html" title="class or interface in javax.measure" class="external-link">Unit</a>&lt;<a href="http://unitsofmeasurement.github.io/unit-api/site/apidocs/javax/measure/quantity/Length.html" title="class or interface in javax.measure.quantity" class="external-link">Length</a>&gt;&nbsp;unit,
  boolean&nbsp;withHeight,
  <a href="EllipsoidToCentricTransform.TargetType.html" title="enum class in org.apache.sis.referencing.operation.transform">EllipsoidToCentricTransform.TargetType</a>&nbsp;target)</span>
                                               throws <span class="exceptions"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/util/FactoryException.html" title="class or interface in org.opengis.util" class="external-link">FactoryException</a></span></div>
 <div class="block">Creates a transform from geographic to geocentric coordinates. This factory method combines the
  <code>EllipsoidToCentricTransform</code> instance with the steps needed for converting degrees to
  radians and expressing the results in units of the given ellipsoid.

  <p>Input coordinates are expected to contain:</p>
  <ol>
    <li>longitudes in <strong>degrees</strong> relative to the prime meridian (usually Greenwich),</li>
    <li>latitudes in <strong>degrees</strong>,</li>
    <li>optionally heights above the ellipsoid, in units of the ellipsoid axis (usually metres).</li>
  </ol>

  Output coordinates are as below, in units of the ellipsoid axis (usually metres):
  <ol>
    <li>distance from Earth center on the X axis (toward the intersection of prime meridian and equator),</li>
    <li>distance from Earth center on the Y axis (toward the intersection of 90°E meridian and equator),</li>
    <li>distance from Earth center on the Z axis (toward North pole).</li>
  </ol></div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>factory</code> - the factory to use for creating and concatenating the affine transforms.</dd>
 <dd><code>semiMajor</code> - the semi-major axis length.</dd>
 <dd><code>semiMinor</code> - the semi-minor axis length.</dd>
 <dd><code>unit</code> - the unit of measurement for the semi-axes and the ellipsoidal height.</dd>
 <dd><code>withHeight</code> - <code>true</code> if source geographic coordinates include an ellipsoidal height
                      (i.e. are 3-D), or <code>false</code> if they are only 2-D.</dd>
 <dd><code>target</code> - whether the target coordinate shall be Cartesian or Spherical.</dd>
 <dt>Returns:</dt>
 <dd>the conversion from geographic to geocentric coordinates.</dd>
 <dt>Throws:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/util/FactoryException.html" title="class or interface in org.opengis.util" class="external-link">FactoryException</a></code> - if an error occurred while creating a transform.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="createGeodeticConversion(org.opengis.referencing.operation.MathTransformFactory,org.opengis.referencing.datum.Ellipsoid,boolean)">
 <h3>createGeodeticConversion</h3>
 <div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></span>&nbsp;<span class="element-name">createGeodeticConversion</span><wbr><span class="parameters">(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransformFactory.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransformFactory</a>&nbsp;factory,
  <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/datum/Ellipsoid.html" title="class or interface in org.opengis.referencing.datum" class="external-link">Ellipsoid</a>&nbsp;ellipsoid,
  boolean&nbsp;withHeight)</span>
                                               throws <span class="exceptions"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/util/FactoryException.html" title="class or interface in org.opengis.util" class="external-link">FactoryException</a></span></div>
 <div class="block">Creates a transform from geographic to Cartesian geocentric coordinates (convenience method).
  This method is equivalent to the following:


 <div class="snippet-container"><button class="copy snippet-copy" aria-label="Copy snippet" onclick="copySnippet(this)"><span data-copied="Copied!">Copy</span><img src="../../../../../../../copy.svg" alt="Copy snippet"></button>
 <pre class="snippet"><code class="language-java">return createGeodeticConversion(factory,
         ellipsoid.getSemiMajorAxis(),
         ellipsoid.getSemiMinorAxis(),
         ellipsoid.getAxisUnit(),
         withHeight, TargetType.CARTESIAN);
 </code></pre>
 </div>


  The target type is assumed Cartesian because this is the most frequently used target.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>factory</code> - the factory to use for creating and concatenating the affine transforms.</dd>
 <dd><code>ellipsoid</code> - the semi-major and semi-minor axis lengths with their unit of measurement.</dd>
 <dd><code>withHeight</code> - <code>true</code> if source geographic coordinates include an ellipsoidal height
                      (i.e. are 3-D), or <code>false</code> if they are only 2-D.</dd>
 <dt>Returns:</dt>
 <dd>the conversion from geographic to Cartesian geocentric coordinates.</dd>
 <dt>Throws:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/util/FactoryException.html" title="class or interface in org.opengis.util" class="external-link">FactoryException</a></code> - if an error occurred while creating a transform.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="getContextualParameters()">
 <h3>getContextualParameters</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type"><a href="ContextualParameters.html" title="class in org.apache.sis.referencing.operation.transform">ContextualParameters</a></span>&nbsp;<span class="element-name">getContextualParameters</span>()</div>
 <div class="block">Returns the parameters used for creating the complete conversion. Those parameters describe a sequence
  of <cite>normalize</cite> → <code>this</code> → <cite>denormalize</cite> transforms, <strong>not</strong>
  including <a href="../../cs/CoordinateSystems.html#swapAndScaleAxes(org.opengis.referencing.cs.CoordinateSystem,org.opengis.referencing.cs.CoordinateSystem)">axis swapping</a>.
  Those parameters are used for formatting <cite>Well Known Text</cite> (WKT) and error messages.</div>
 <dl class="notes">
 <dt>Overrides:</dt>
 <dd><code><a href="AbstractMathTransform.html#getContextualParameters()">getContextualParameters</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>Returns:</dt>
 <dd>the parameter values for the sequence of
          <cite>normalize</cite> → <code>this</code> → <cite>denormalize</cite> transforms.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="getParameterValues()">
 <h3>getParameterValues</h3>
 <div class="member-signature"><span class="annotations"><a href="../../../../../../../org.apache.sis.util/org/apache/sis/util/Debug.html" title="annotation interface in org.apache.sis.util">@Debug</a>
 </span><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterValueGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterValueGroup</a></span>&nbsp;<span class="element-name">getParameterValues</span>()</div>
 <div class="block">Returns a copy of internal parameter values of this <code>EllipsoidToCentricTransform</code> transform.
  The returned group contains parameter values for the number of dimensions and the eccentricity.

  <h4 id="usage-note-heading">Usage note</h4>
  This method is mostly for <a href="../../../io/wkt/Convention.html#INTERNAL">debugging purposes</a>
  since the isolation of non-linear parameters in this class is highly implementation dependent.
  Most GIS applications will instead be interested in the <a href="#getContextualParameters()">contextual parameters</a>.</div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="../../../parameter/Parameterized.html#getParameterValues()">getParameterValues</a></code>&nbsp;in interface&nbsp;<code><a href="../../../parameter/Parameterized.html" title="interface in org.apache.sis.parameter">Parameterized</a></code></dd>
 <dt>Overrides:</dt>
 <dd><code><a href="AbstractMathTransform.html#getParameterValues()">getParameterValues</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>Returns:</dt>
 <dd>a copy of the internal parameter values for this transform.</dd>
 <dt>See Also:</dt>
 <dd>
 <ul class="tag-list-long">
 <li><a href="AbstractMathTransform.html#getContextualParameters()"><code>AbstractMathTransform.getContextualParameters()</code></a></li>
 <li><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/SingleOperation.html#getParameterValues()" title="class or interface in org.opengis.referencing.operation" class="external-link"><code>SingleOperation.getParameterValues()</code></a></li>
 </ul>
 </dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="getParameterDescriptors()">
 <h3>getParameterDescriptors</h3>
 <div class="member-signature"><span class="annotations"><a href="../../../../../../../org.apache.sis.util/org/apache/sis/util/Debug.html" title="annotation interface in org.apache.sis.util">@Debug</a>
 </span><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/parameter/ParameterDescriptorGroup.html" title="class or interface in org.opengis.parameter" class="external-link">ParameterDescriptorGroup</a></span>&nbsp;<span class="element-name">getParameterDescriptors</span>()</div>
 <div class="block">Returns a description of the internal parameters of this <code>EllipsoidToCentricTransform</code> transform.
  The returned group contains parameter descriptors for the number of dimensions and the eccentricity.</div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="../../../parameter/Parameterized.html#getParameterDescriptors()">getParameterDescriptors</a></code>&nbsp;in interface&nbsp;<code><a href="../../../parameter/Parameterized.html" title="interface in org.apache.sis.parameter">Parameterized</a></code></dd>
 <dt>Overrides:</dt>
 <dd><code><a href="AbstractMathTransform.html#getParameterDescriptors()">getParameterDescriptors</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>Returns:</dt>
 <dd>a description of the internal parameters.</dd>
 <dt>See Also:</dt>
 <dd>
 <ul class="tag-list-long">
 <li><a href="../DefaultOperationMethod.html#getParameters()"><code>DefaultOperationMethod.getParameters()</code></a></li>
 </ul>
 </dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="getSourceDimensions()">
 <h3>getSourceDimensions</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">getSourceDimensions</span>()</div>
 <div class="block">Gets the dimension of input points, which is 2 or 3.</div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html#getSourceDimensions()" title="class or interface in org.opengis.referencing.operation" class="external-link">getSourceDimensions</a></code>&nbsp;in interface&nbsp;<code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></code></dd>
 <dt>Specified by:</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>Returns:</dt>
 <dd>2 or 3.</dd>
 <dt>See Also:</dt>
 <dd>
 <ul class="tag-list-long">
 <li><a href="../DefaultOperationMethod.html#getSourceDimensions()"><code>DefaultOperationMethod.getSourceDimensions()</code></a></li>
 </ul>
 </dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="getTargetDimensions()">
 <h3>getTargetDimensions</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">getTargetDimensions</span>()</div>
 <div class="block">Gets the dimension of output points, which is 3.</div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html#getTargetDimensions()" title="class or interface in org.opengis.referencing.operation" class="external-link">getTargetDimensions</a></code>&nbsp;in interface&nbsp;<code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></code></dd>
 <dt>Specified by:</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>Returns:</dt>
 <dd>always 3.</dd>
 <dt>See Also:</dt>
 <dd>
 <ul class="tag-list-long">
 <li><a href="../DefaultOperationMethod.html#getTargetDimensions()"><code>DefaultOperationMethod.getTargetDimensions()</code></a></li>
 </ul>
 </dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="getTargetType()">
 <h3>getTargetType</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="EllipsoidToCentricTransform.TargetType.html" title="enum class in org.apache.sis.referencing.operation.transform">EllipsoidToCentricTransform.TargetType</a></span>&nbsp;<span class="element-name">getTargetType</span>()</div>
 <div class="block">Returns whether the target coordinate system is Cartesian or Spherical.</div>
 <dl class="notes">
 <dt>Returns:</dt>
 <dd>whether the target coordinate system is Cartesian or Spherical.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="derivative(org.opengis.geometry.DirectPosition)">
 <h3>derivative</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/Matrix.html" title="class or interface in org.opengis.referencing.operation" class="external-link">Matrix</a></span>&nbsp;<span class="element-name">derivative</span><wbr><span class="parameters">(<a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/geometry/DirectPosition.html" title="class or interface in org.opengis.geometry" class="external-link">DirectPosition</a>&nbsp;point)</span>
                   throws <span class="exceptions"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/TransformException.html" title="class or interface in org.opengis.referencing.operation" class="external-link">TransformException</a></span></div>
 <div class="block">Computes the derivative at the given location.
  This method relaxes a little bit the <code>MathTransform</code> contract by accepting two- or three-dimensional
  points even if the number of dimensions does not match the <a href="#getSourceDimensions()"><code>getSourceDimensions()</code></a> value.

  <h4 id="rational-heading">Rational</h4>
  That flexibility on the number of dimensions is required for calculation of <a href="#inverse()">inverse</a>
  transform derivative, because that calculation needs to inverse a square matrix with all terms in it before
  to drop the last row in the two-dimensional case.</div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html#derivative(org.opengis.geometry.DirectPosition)" title="class or interface in org.opengis.referencing.operation" class="external-link">derivative</a></code>&nbsp;in interface&nbsp;<code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></code></dd>
 <dt>Overrides:</dt>
 <dd><code><a href="AbstractMathTransform.html#derivative(org.opengis.geometry.DirectPosition)">derivative</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>Parameters:</dt>
 <dd><code>point</code> - the position where to evaluate the derivative.</dd>
 <dt>Returns:</dt>
 <dd>the derivative at the specified point (never <code>null</code>).</dd>
 <dt>Throws:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/TransformException.html" title="class or interface in org.opengis.referencing.operation" class="external-link">TransformException</a></code> - if the derivative cannot be evaluated at the specified point.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="transform(double[],int,double[],int,boolean)">
 <h3>transform</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/Matrix.html" title="class or interface in org.opengis.referencing.operation" class="external-link">Matrix</a></span>&nbsp;<span class="element-name">transform</span><wbr><span class="parameters">(double[]&nbsp;srcPts,
  int&nbsp;srcOff,
  double[]&nbsp;dstPts,
  int&nbsp;dstOff,
  boolean&nbsp;derivate)</span>
                  throws <span class="exceptions"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/TransformException.html" title="class or interface in org.opengis.referencing.operation" class="external-link">TransformException</a></span></div>
 <div class="block">Converts the (λ,φ) or (λ,φ,<var>h</var>) geodetic coordinates to
  to (<var>X</var>,<var>Y</var>,<var>Z</var>) geocentric coordinates,
  and optionally returns the derivative at that location.</div>
 <dl class="notes">
 <dt>Specified by:</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>Parameters:</dt>
 <dd><code>srcPts</code> - the array containing the source coordinates (cannot 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 coordinates 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>Returns:</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>Throws:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/TransformException.html" title="class or interface in org.opengis.referencing.operation" class="external-link">TransformException</a></code> - if the point cannot be transformed or
          if a problem occurred while calculating the derivative.</dd>
 <dt>See Also:</dt>
 <dd>
 <ul class="tag-list-long">
 <li><a href="AbstractMathTransform.html#derivative(org.opengis.geometry.DirectPosition)"><code>AbstractMathTransform.derivative(DirectPosition)</code></a></li>
 <li><a href="AbstractMathTransform.html#transform(org.opengis.geometry.DirectPosition,org.opengis.geometry.DirectPosition)"><code>AbstractMathTransform.transform(DirectPosition, DirectPosition)</code></a></li>
 <li><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></li>
 </ul>
 </dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="transform(double[],int,double[],int,int)">
 <h3>transform</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">transform</span><wbr><span class="parameters">(double[]&nbsp;srcPts,
  int&nbsp;srcOff,
  double[]&nbsp;dstPts,
  int&nbsp;dstOff,
  int&nbsp;numPts)</span>
                throws <span class="exceptions"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/TransformException.html" title="class or interface in org.opengis.referencing.operation" class="external-link">TransformException</a></span></div>
 <div class="block">Converts the (λ,φ) or (λ,φ,<var>h</var>) geodetic coordinates to
  to (<var>X</var>,<var>Y</var>,<var>Z</var>) geocentric coordinates.
  This method performs the same conversion than <a href="#transform(double%5B%5D,int,double%5B%5D,int,boolean)"><code>transform(double[], int, double[], int, boolean)</code></a>,
  but the formulas are repeated here for performance reasons.</div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html#transform(double%5B%5D,int,double%5B%5D,int,int)" title="class or interface in org.opengis.referencing.operation" class="external-link">transform</a></code>&nbsp;in interface&nbsp;<code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></code></dd>
 <dt>Overrides:</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>Parameters:</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>Throws:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/TransformException.html" title="class or interface in org.opengis.referencing.operation" class="external-link">TransformException</a></code> - if a point cannot be transformed.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="inverseTransform(double[],int,double[],int,int)">
 <h3>inverseTransform</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">inverseTransform</span><wbr><span class="parameters">(double[]&nbsp;srcPts,
  int&nbsp;srcOff,
  double[]&nbsp;dstPts,
  int&nbsp;dstOff,
  int&nbsp;numPts)</span>
                          throws <span class="exceptions"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/TransformException.html" title="class or interface in org.opengis.referencing.operation" class="external-link">TransformException</a></span></div>
 <div class="block">Converts Cartesian coordinates (<var>X</var>,<var>Y</var>,<var>Z</var>) to ellipsoidal coordinates
  (λ,φ) or (λ,φ,<var>h</var>). This method is invoked by the transform returned by <a href="#inverse()"><code>inverse()</code></a>.</div>
 <dl class="notes">
 <dt>Parameters:</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>Throws:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/TransformException.html" title="class or interface in org.opengis.referencing.operation" class="external-link">TransformException</a></code> - if the calculation does not converge.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="inverse()">
 <h3>inverse</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></span>&nbsp;<span class="element-name">inverse</span>()</div>
 <div class="block">Returns the inverse of this transform. The default implementation returns a transform
  that will delegate its work to <a href="#inverseTransform(double%5B%5D,int,double%5B%5D,int,int)"><code>inverseTransform(double[], int, double[], int, int)</code></a>.</div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html#inverse()" title="class or interface in org.opengis.referencing.operation" class="external-link">inverse</a></code>&nbsp;in interface&nbsp;<code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></code></dd>
 <dt>Overrides:</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>Returns:</dt>
 <dd>the conversion from (geo)centric to ellipsoidal coordinates.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="computeHashCode()">
 <h3>computeHashCode</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">computeHashCode</span>()</div>
 <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 class="notes">
 <dt>Overrides:</dt>
 <dd><code><a href="AbstractMathTransform.html#computeHashCode()">computeHashCode</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>Returns:</dt>
 <dd>the hash code value. This value may change between different execution of the Apache SIS library.</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="equals(java.lang.Object,org.apache.sis.util.ComparisonMode)">
 <h3>equals</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">equals</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&nbsp;object,
  <a href="../../../../../../../org.apache.sis.util/org/apache/sis/util/ComparisonMode.html" title="enum class in org.apache.sis.util">ComparisonMode</a>&nbsp;mode)</span></div>
 <div class="block">Compares the specified object with this math transform for equality.</div>
 <dl class="notes">
 <dt>Specified by:</dt>
 <dd><code><a href="../../../../../../../org.apache.sis.util/org/apache/sis/util/LenientComparable.html#equals(java.lang.Object,org.apache.sis.util.ComparisonMode)">equals</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org.apache.sis.util/org/apache/sis/util/LenientComparable.html" title="interface in org.apache.sis.util">LenientComparable</a></code></dd>
 <dt>Overrides:</dt>
 <dd><code><a href="AbstractMathTransform.html#equals(java.lang.Object,org.apache.sis.util.ComparisonMode)">equals</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>Parameters:</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="../../../../../../../org.apache.sis.util/org/apache/sis/util/ComparisonMode.html#STRICT"><code>STRICT</code></a>.</dd>
 <dt>Returns:</dt>
 <dd><code>true</code> if the given object is considered equals to this math transform.</dd>
 <dt>See Also:</dt>
 <dd>
 <ul class="tag-list-long">
 <li><a href="../../../../../../../org.apache.sis.util/org/apache/sis/util/Utilities.html#deepEquals(java.lang.Object,java.lang.Object,org.apache.sis.util.ComparisonMode)"><code>Utilities.deepEquals(Object, Object, ComparisonMode)</code></a></li>
 </ul>
 </dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="tryConcatenate(boolean,org.opengis.referencing.operation.MathTransform,org.opengis.referencing.operation.MathTransformFactory)">
 <h3>tryConcatenate</h3>
 <div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a></span>&nbsp;<span class="element-name">tryConcatenate</span><wbr><span class="parameters">(boolean&nbsp;applyOtherFirst,
  <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransform.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransform</a>&nbsp;other,
  <a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/operation/MathTransformFactory.html" title="class or interface in org.opengis.referencing.operation" class="external-link">MathTransformFactory</a>&nbsp;factory)</span>
                                 throws <span class="exceptions"><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/util/FactoryException.html" title="class or interface in org.opengis.util" class="external-link">FactoryException</a></span></div>
 <div class="block">If this transform expects three-dimensional inputs, and if the transform just before this one
  unconditionally sets the height to zero, then replaces this transform by a two-dimensional one.
  The intent is to handle the following sequence of operations defined in the EPSG database:

  <ol>
    <li>Inverse of <cite>Geographic 3D to 2D conversion</cite> (EPSG:9659)</li>
    <li><cite>Geographic/geocentric conversions</cite> (EPSG:9602)</li>
  </ol>

  Replacing the above sequence by a two-dimensional <code>EllipsoidToCentricTransform</code> instance
  allow the following optimizations:

  <ul>
    <li>Avoid computation of <var>h</var> value.</li>
    <li>Allow use of the more efficient <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.desktop/java/awt/geom/AffineTransform.html" title="class or interface in java.awt.geom" class="external-link"><code>AffineTransform</code></a> before this transform
        instead of a transform based on a matrix of size 4×3.</li>
  </ul></div>
 <dl class="notes">
 <dt>Overrides:</dt>
 <dd><code><a href="AbstractMathTransform.html#tryConcatenate(boolean,org.opengis.referencing.operation.MathTransform,org.opengis.referencing.operation.MathTransformFactory)">tryConcatenate</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>Parameters:</dt>
 <dd><code>applyOtherFirst</code> - <code>true</code> if the transformation order is <code>other</code> followed by <code>this</code>, or
                           <code>false</code> if the transformation order is <code>this</code> followed by <code>other</code>.</dd>
 <dd><code>other</code> - the other math transform to (pre-)concatenate with this transform.</dd>
 <dd><code>factory</code> - the factory which is (indirectly) invoking this method, or <code>null</code> if none.</dd>
 <dt>Returns:</dt>
 <dd>the combined math transform, or <code>null</code> if no optimized combined transform is available.</dd>
 <dt>Throws:</dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/util/FactoryException.html" title="class or interface in org.opengis.util" class="external-link">FactoryException</a></code> - if an error occurred while combining the transforms.</dd>
 <dt>See Also:</dt>
 <dd>
 <ul class="tag-list-long">
 <li><a href="DefaultMathTransformFactory.html#createConcatenatedTransform(org.opengis.referencing.operation.MathTransform,org.opengis.referencing.operation.MathTransform)"><code>DefaultMathTransformFactory.createConcatenatedTransform(MathTransform, MathTransform)</code></a></li>
 </ul>
 </dd>
 </dl>
 </section>
 </li>
 </ul>
 </section>
 </li>
 </ul>
 </section>
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