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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.sis.referencing.operation.projection</a></div> |
| <h2 title="Class CylindricalEqualArea" class="title">Class CylindricalEqualArea</h2> |
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| <li><a href="../transform/AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform</a></li> |
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| <li><a href="../transform/AbstractMathTransform2D.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform2D</a></li> |
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| <li><a href="NormalizedProjection.html" title="class in org.apache.sis.referencing.operation.projection">NormalizedProjection</a></li> |
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| <li>CylindricalEqualArea</li> |
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| <pre>public class <span class="typeNameLabel">CylindricalEqualArea</span> |
| extends <a href="NormalizedProjection.html" title="class in org.apache.sis.referencing.operation.projection">NormalizedProjection</a></pre> |
| <div class="block"><cite>Cylindrical Equal Area</cite> projection (EPSG codes 9834, 9835). |
| This is the simplest equal-area projection. |
| This projection has various names depending on its standard parallel: |
| |
| <table class="sis"> |
| <caption>Non-exhaustive list of variants</caption> |
| <tr><th>Name</th> <th>Standard parallel</th></tr> |
| <tr><td>Lambert cylindrical equal-area</td> <td>0°</td></tr> |
| <tr><td>Behrmann cylindrical equal-area</td> <td>30°</td></tr> |
| <tr><td>Gall orthographic</td> <td>45°</td></tr> |
| <tr><td>Balthasart</td> <td>50°</td></tr> |
| </table> |
| |
| <div class="section">Description</div> |
| The parallels and the meridians are straight lines and cross at right angles. |
| The scale is true along standard parallels, but distortion increase greatly at other locations. |
| Distortions are so great that there is little use of this projection for world mapping purposes. |
| However this projection may be useful for computing areas.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>0.8</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../serialized-form.html#org.apache.sis.referencing.operation.projection.CylindricalEqualArea">Serialized Form</a></dd> |
| |
| <p><font size="-1">Defined in the <code>sis-referencing</code> module</font></p> |
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| <code><a href="NormalizedProjection.ParameterRole.html" title="enum in org.apache.sis.referencing.operation.projection">NormalizedProjection.ParameterRole</a></code></li> |
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| <code><a href="NormalizedProjection.html#eccentricity">eccentricity</a>, <a href="NormalizedProjection.html#eccentricitySquared">eccentricitySquared</a></code></li> |
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| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.opengis.referencing.operation.OperationMethod,org.apache.sis.parameter.Parameters)">CylindricalEqualArea</a></span>​(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/OperationMethod.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">OperationMethod</a> method, |
| <a href="../../../parameter/Parameters.html" title="class in org.apache.sis.parameter">Parameters</a> parameters)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a Cylindrical Equal Area projection from the given parameters.</div> |
| </td> |
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| <tr> |
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| <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="#createMapProjection(org.opengis.referencing.operation.MathTransformFactory)">createMapProjection</a></span>​(<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> factory)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the sequence of <cite>normalization</cite> → <code>this</code> → <cite>denormalization</cite> transforms |
| as a whole.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#inverseTransform(double%5B%5D,int,double%5B%5D,int)">inverseTransform</a></span>​(double[] srcPts, |
| int srcOff, |
| double[] dstPts, |
| int dstOff)</code></th> |
| <td class="colLast"> |
| <div class="block">Converts the specified (<var>x</var>,<var>y</var>) coordinates |
| and stores the result in <code>dstPts</code> (angles in radians).</div> |
| </td> |
| </tr> |
| <tr id="i2" 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>​(double[] srcPts, |
| int srcOff, |
| double[] dstPts, |
| int dstOff, |
| boolean derivate)</code></th> |
| <td class="colLast"> |
| <div class="block">Converts the specified (λ,φ) coordinate (units in radians) and stores the result in <code>dstPts</code> |
| (linear distance on a unit sphere).</div> |
| </td> |
| </tr> |
| <tr id="i3" 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>​(double[] srcPts, |
| int srcOff, |
| double[] dstPts, |
| int dstOff, |
| int numPts)</code></th> |
| <td class="colLast"> |
| <div class="block">Converts a list of coordinate points.</div> |
| </td> |
| </tr> |
| </table> |
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| </a> |
| <h3>Methods inherited from class <a href="NormalizedProjection.html" title="class in org.apache.sis.referencing.operation.projection">NormalizedProjection</a></h3> |
| <code><a href="NormalizedProjection.html#computeHashCode()">computeHashCode</a>, <a href="NormalizedProjection.html#equals(java.lang.Object,org.apache.sis.util.ComparisonMode)">equals</a>, <a href="NormalizedProjection.html#getContextualParameters()">getContextualParameters</a>, <a href="NormalizedProjection.html#getParameterDescriptors()">getParameterDescriptors</a>, <a href="NormalizedProjection.html#getParameterValues()">getParameterValues</a>, <a href="NormalizedProjection.html#inverse()">inverse</a>, <a href="NormalizedProjection.html#tryConcatenate(boolean,org.opengis.referencing.operation.MathTransform,org.opengis.referencing.operation.MathTransformFactory)">tryConcatenate</a></code></li> |
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| <code><a href="../transform/AbstractMathTransform2D.html#createTransformedShape(java.awt.Shape)">createTransformedShape</a>, <a href="../transform/AbstractMathTransform2D.html#derivative(java.awt.geom.Point2D)">derivative</a>, <a href="../transform/AbstractMathTransform2D.html#getSourceDimensions()">getSourceDimensions</a>, <a href="../transform/AbstractMathTransform2D.html#getTargetDimensions()">getTargetDimensions</a>, <a href="../transform/AbstractMathTransform2D.html#transform(java.awt.geom.Point2D,java.awt.geom.Point2D)">transform</a></code></li> |
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| <h3>Methods inherited from class <a href="../transform/AbstractMathTransform.html" title="class in org.apache.sis.referencing.operation.transform">AbstractMathTransform</a></h3> |
| <code><a href="../transform/AbstractMathTransform.html#derivative(org.opengis.geometry.DirectPosition)">derivative</a>, <a href="../transform/AbstractMathTransform.html#equals(java.lang.Object)">equals</a>, <a href="../transform/AbstractMathTransform.html#formatTo(org.apache.sis.io.wkt.Formatter)">formatTo</a>, <a href="../transform/AbstractMathTransform.html#hashCode()">hashCode</a>, <a href="../transform/AbstractMathTransform.html#isIdentity()">isIdentity</a>, <a href="../transform/AbstractMathTransform.html#transform(double%5B%5D,int,float%5B%5D,int,int)">transform</a>, <a href="../transform/AbstractMathTransform.html#transform(float%5B%5D,int,double%5B%5D,int,int)">transform</a>, <a href="../transform/AbstractMathTransform.html#transform(float%5B%5D,int,float%5B%5D,int,int)">transform</a>, <a href="../transform/AbstractMathTransform.html#transform(org.opengis.geometry.DirectPosition,org.opengis.geometry.DirectPosition)">transform</a></code></li> |
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| <h3>Methods inherited from class <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> |
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| <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> |
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| <h3>Methods inherited from interface <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#derivative(org.opengis.geometry.DirectPosition)" title="class or interface in org.opengis.referencing.operation" class="externalLink">derivative</a>, <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true#isIdentity()" title="class or interface in org.opengis.referencing.operation" class="externalLink">isIdentity</a>, <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>, <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true#transform(double%5B%5D,int,float%5B%5D,int,int)" title="class or interface in org.opengis.referencing.operation" class="externalLink">transform</a>, <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true#transform(float%5B%5D,int,double%5B%5D,int,int)" title="class or interface in org.opengis.referencing.operation" class="externalLink">transform</a>, <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true#transform(float%5B%5D,int,float%5B%5D,int,int)" title="class or interface in org.opengis.referencing.operation" class="externalLink">transform</a>, <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true#transform(org.opengis.geometry.DirectPosition,org.opengis.geometry.DirectPosition)" title="class or interface in org.opengis.referencing.operation" class="externalLink">transform</a></code></li> |
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| <h3>Constructor Detail</h3> |
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| <h4>CylindricalEqualArea</h4> |
| <pre>public CylindricalEqualArea​(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/OperationMethod.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">OperationMethod</a> method, |
| <a href="../../../parameter/Parameters.html" title="class in org.apache.sis.parameter">Parameters</a> parameters)</pre> |
| <div class="block">Creates a Cylindrical Equal Area projection from the given parameters.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>method</code> - Description of the projection parameters.</dd> |
| <dd><code>parameters</code> - The parameter values of the projection to create.</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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| <a id="createMapProjection(org.opengis.referencing.operation.MathTransformFactory)"> |
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| <h4>createMapProjection</h4> |
| <pre class="methodSignature">public <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> createMapProjection​(<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> factory) |
| 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">Returns the sequence of <cite>normalization</cite> → <code>this</code> → <cite>denormalization</cite> transforms |
| as a whole. The transform returned by this method expects (<var>longitude</var>, <var>latitude</var>) |
| coordinates in <em>degrees</em> and returns (<var>x</var>,<var>y</var>) coordinates in <em>metres</em>. |
| |
| <p>The non-linear part of the returned transform will be <code>this</code> transform, except if the ellipsoid |
| is spherical. In the later case, <code>this</code> transform will be replaced by a simplified implementation.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="NormalizedProjection.html#createMapProjection(org.opengis.referencing.operation.MathTransformFactory)">createMapProjection</a></code> in class <code><a href="NormalizedProjection.html" title="class in org.apache.sis.referencing.operation.projection">NormalizedProjection</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factory</code> - the factory to use for creating the transform.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the map projection from (λ,φ) to (<var>x</var>,<var>y</var>) 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> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../transform/ContextualParameters.html#completeTransform(org.opengis.referencing.operation.MathTransformFactory,org.opengis.referencing.operation.MathTransform)"><code>ContextualParameters.completeTransform(MathTransformFactory, MathTransform)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="transform(double[],int,double[],int,boolean)"> |
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| <h4>transform</h4> |
| <pre class="methodSignature">public <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> transform​(double[] srcPts, |
| int srcOff, |
| double[] dstPts, |
| int dstOff, |
| boolean derivate) |
| throws <a href="ProjectionException.html" title="class in org.apache.sis.referencing.operation.projection">ProjectionException</a></pre> |
| <div class="block">Converts the specified (λ,φ) coordinate (units in radians) and stores the result in <code>dstPts</code> |
| (linear distance on a unit sphere). In addition, opportunistically computes the projection derivative |
| if <code>derivate</code> is <code>true</code>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="NormalizedProjection.html#transform(double%5B%5D,int,double%5B%5D,int,boolean)">transform</a></code> in class <code><a href="NormalizedProjection.html" title="class in org.apache.sis.referencing.operation.projection">NormalizedProjection</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>srcPts</code> - the array containing the source point coordinate, as (<var>longitude</var>, <var>latitude</var>) |
| angles in <strong>radians</strong>.</dd> |
| <dd><code>srcOff</code> - the offset of the single coordinate to be converted in the source array.</dd> |
| <dd><code>dstPts</code> - the array into which the converted coordinate is returned (may be the same than <code>srcPts</code>). |
| Coordinates will be expressed in a dimensionless unit, as a linear distance on a unit sphere or ellipse.</dd> |
| <dd><code>dstOff</code> - the offset of the location of the converted coordinate 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 projection 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="ProjectionException.html" title="class in org.apache.sis.referencing.operation.projection">ProjectionException</a></code> - if the coordinate can not be converted.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../transform/AbstractMathTransform.html#derivative(org.opengis.geometry.DirectPosition)"><code>AbstractMathTransform.derivative(DirectPosition)</code></a>, |
| <a href="../transform/AbstractMathTransform.html#transform(org.opengis.geometry.DirectPosition,org.opengis.geometry.DirectPosition)"><code>AbstractMathTransform.transform(DirectPosition, DirectPosition)</code></a>, |
| <a href="../transform/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> |
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| <h4>transform</h4> |
| <pre class="methodSignature">public void transform​(double[] srcPts, |
| int srcOff, |
| double[] dstPts, |
| int dstOff, |
| int 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">Converts a list of coordinate points. This method performs the same calculation than above |
| <a href="#transform(double%5B%5D,int,double%5B%5D,int,boolean)"><code>transform(double[], int, double[], int, boolean)</code></a> method, but is overridden for efficiency.</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> in interface <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="../transform/AbstractMathTransform.html#transform(double%5B%5D,int,double%5B%5D,int,int)">transform</a></code> in class <code><a href="../transform/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 converted.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="inverseTransform(double[],int,double[],int)"> |
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| <h4>inverseTransform</h4> |
| <pre class="methodSignature">protected void inverseTransform​(double[] srcPts, |
| int srcOff, |
| double[] dstPts, |
| int dstOff) |
| throws <a href="ProjectionException.html" title="class in org.apache.sis.referencing.operation.projection">ProjectionException</a></pre> |
| <div class="block">Converts the specified (<var>x</var>,<var>y</var>) coordinates |
| and stores the result in <code>dstPts</code> (angles in radians).</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="NormalizedProjection.html#inverseTransform(double%5B%5D,int,double%5B%5D,int)">inverseTransform</a></code> in class <code><a href="NormalizedProjection.html" title="class in org.apache.sis.referencing.operation.projection">NormalizedProjection</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>srcPts</code> - the array containing the source point coordinate, as linear distance on a unit sphere or ellipse.</dd> |
| <dd><code>srcOff</code> - the offset of the point to be converted in the source array.</dd> |
| <dd><code>dstPts</code> - the array into which the converted point coordinate is returned (may be the same than <code>srcPts</code>). |
| Coordinates will be (<var>longitude</var>, <var>latitude</var>) angles in <strong>radians</strong>.</dd> |
| <dd><code>dstOff</code> - the offset of the location of the converted point that is stored in the destination array.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="ProjectionException.html" title="class in org.apache.sis.referencing.operation.projection">ProjectionException</a></code> - if the point can not be converted.</dd> |
| </dl> |
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