static/apidocs/org/apache/sis/geometry/Envelopes.html - sis-site - Git at Google

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 <div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.sis.geometry</a></div>
 <h2 title="Class Envelopes" class="title">Class Envelopes</h2>
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 <pre>public final class <span class="typeNameLabel">Envelopes</span>
 extends <a href="../util/Static.html" title="class in org.apache.sis.util">Static</a></pre>
 <div class="block">Transforms envelopes to new Coordinate Reference Systems, and miscellaneous utilities.

  <div class="section">Envelope transformations</div>
  All <code>transform(…)</code> methods in this class take in account the curvature of the transformed shape.
  For example the shape of a geographic envelope (figure below on the left side) is not rectangular in a
  conic projection (figure below on the right side). In order to get the envelope represented by the red
  rectangle, projecting the four corners of the geographic envelope is not sufficient since we would miss
  the southerner part.

  <table class="sis">
    <caption>Example of curvature induced by a map projection</caption>
    <tr>
      <th>Envelope before map projection</th>
      <th>Shape of the projected envelope</th>
    </tr><tr>
      <td><img src="doc-files/GeographicArea.png" alt="Envelope in a geographic CRS"></td>
      <td><img src="doc-files/ConicArea.png" alt="Shape of the envelope transformed in a conic projection"></td>
    </tr>
  </table>

  Apache SIS tries to detect the curvature by transforming intermediate points in addition to the corners.
  While optional, it is strongly recommended that all <code>MathTransform</code> implementations involved in the
  operation (directly or indirectly) support <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>,
  for more accurate calculation of curve extremum. This is the case of most Apache SIS implementations.

  <p>The <code>transform(…)</code> methods in this class expect an arbitrary <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink"><code>Envelope</code></a> with <strong>one</strong>
  of the following arguments: <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"><code>MathTransform</code></a>, <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/CoordinateOperation.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink"><code>CoordinateOperation</code></a> or <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/crs/CoordinateReferenceSystem.html?is-external=true" title="class or interface in org.opengis.referencing.crs" class="externalLink"><code>CoordinateReferenceSystem</code></a>.
  The recommended method is the one expecting a <code>CoordinateOperation</code> object,
  since it contains sufficient information for handling the cases of envelopes that encompass a pole.
  The method expecting a <code>CoordinateReferenceSystem</code> object is merely a convenience method that
  infers the coordinate operation itself, but at the cost of performance if the same operation needs
  to be applied on many envelopes.</p></div>
 <dl>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>0.3</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../metadata/iso/extent/Extents.html" title="class in org.apache.sis.metadata.iso.extent"><code>Extents</code></a>,
 <a href="../referencing/CRS.html" title="class in org.apache.sis.referencing"><code>CRS</code></a></dd>

 <p><font size="-1">Defined in the <code>sis-referencing</code> module</font></p>
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 <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colSecond" scope="col">Method</th>
 <th class="colLast" scope="col">Description</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code>static <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#compound(org.opengis.geometry.Envelope...)">compound</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>...&nbsp;components)</code></th>
 <td class="colLast">
 <div class="block">Puts together a list of envelopes, each of them using an independent coordinate reference system.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>static <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/CoordinateOperation.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">CoordinateOperation</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#findOperation(org.opengis.geometry.Envelope,org.opengis.geometry.Envelope)">findOperation</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;source,
              <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;target)</code></th>
 <td class="colLast">
 <div class="block">Finds a mathematical operation from the CRS of the given source envelope to the CRS of the given target envelope.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>static <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fromWKT(java.lang.CharSequence)">fromWKT</a></span>&#8203;(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html?is-external=true" title="class or interface in java.lang" class="externalLink">CharSequence</a>&nbsp;wkt)</code></th>
 <td class="colLast">
 <div class="block">Returns the bounding box of a geometry defined in <cite>Well Known Text</cite> (WKT) format.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>static <a href="GeneralEnvelope.html" title="class in org.apache.sis.geometry">GeneralEnvelope</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#intersect(org.opengis.geometry.Envelope...)">intersect</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>...&nbsp;envelopes)</code></th>
 <td class="colLast">
 <div class="block">Computes the intersection of all given envelopes, transforming them to a common CRS if necessary.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toPolygonWKT(org.opengis.geometry.Envelope)">toPolygonWKT</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;envelope)</code></th>
 <td class="colLast">
 <div class="block">Formats the given envelope as a <code>POLYGON</code> element in the <cite>Well Known Text</cite>
  (WKT) format.</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString(org.opengis.geometry.Envelope)">toString</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;envelope)</code></th>
 <td class="colLast">
 <div class="block">Formats the given envelope as a <code>BOX</code> element.</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code>static <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#transform(org.opengis.geometry.Envelope,org.opengis.referencing.crs.CoordinateReferenceSystem)">transform</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;envelope,
          <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/crs/CoordinateReferenceSystem.html?is-external=true" title="class or interface in org.opengis.referencing.crs" class="externalLink">CoordinateReferenceSystem</a>&nbsp;targetCRS)</code></th>
 <td class="colLast">
 <div class="block">Transforms the given envelope to the specified CRS.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>static <a href="GeneralEnvelope.html" title="class in org.apache.sis.geometry">GeneralEnvelope</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#transform(org.opengis.referencing.operation.CoordinateOperation,org.opengis.geometry.Envelope)">transform</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/CoordinateOperation.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">CoordinateOperation</a>&nbsp;operation,
          <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;envelope)</code></th>
 <td class="colLast">
 <div class="block">Transforms an envelope using the given coordinate operation.</div>
 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code>static <a href="GeneralEnvelope.html" title="class in org.apache.sis.geometry">GeneralEnvelope</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#transform(org.opengis.referencing.operation.MathTransform,org.opengis.geometry.Envelope)">transform</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a>&nbsp;transform,
          <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;envelope)</code></th>
 <td class="colLast">
 <div class="block">Transforms an envelope using the given math transform.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>static <a href="GeneralEnvelope.html" title="class in org.apache.sis.geometry">GeneralEnvelope</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#union(org.opengis.geometry.Envelope...)">union</a></span>&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>...&nbsp;envelopes)</code></th>
 <td class="colLast">
 <div class="block">Computes the union of all given envelopes, transforming them to a common CRS if necessary.</div>
 </td>
 </tr>
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 <h4>compound</h4>
 <pre class="methodSignature">public static&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;compound&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>...&nbsp;components)
                          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">Puts together a list of envelopes, each of them using an independent coordinate reference system.
  The dimension of the returned envelope is the sum of the dimension of all components.
  If all components have a coordinate reference system, then the returned envelope will
  have a compound coordinate reference system.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>components</code> - the envelopes to aggregate in a single envelope, in the given order.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the aggregation of all given envelopes.</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 the geodetic factory failed to create the compound CRS.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../referencing/CRS.html#compound(org.opengis.referencing.crs.CoordinateReferenceSystem...)"><code>CRS.compound(CoordinateReferenceSystem...)</code></a>,
 <a href="../referencing/operation/transform/MathTransforms.html#compound(org.opengis.referencing.operation.MathTransform...)"><code>MathTransforms.compound(MathTransform...)</code></a></dd>
 </dl>
 </li>
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 <h4>union</h4>
 <pre class="methodSignature">public static&nbsp;<a href="GeneralEnvelope.html" title="class in org.apache.sis.geometry">GeneralEnvelope</a>&nbsp;union&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>...&nbsp;envelopes)
                              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">Computes the union of all given envelopes, transforming them to a common CRS if necessary.
  If all envelopes use the same CRS (<a href="../util/ComparisonMode.html#IGNORE_METADATA"><code>ignoring metadata</code></a>)
  or if the CRS of all envelopes is <code>null</code>, then the <a href="GeneralEnvelope.html#add(org.opengis.geometry.Envelope)">union is computed</a> without transforming any envelope. Otherwise all envelopes are transformed to a
  <a href="../referencing/CRS.html#suggestCommonTarget(org.opengis.metadata.extent.GeographicBoundingBox,org.opengis.referencing.crs.CoordinateReferenceSystem...)">common CRS</a> before union is computed.
  The CRS of the returned envelope may different than the CRS of all given envelopes.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>envelopes</code> - the envelopes for which to compute union. Null elements are ignored.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>union of given envelopes, or <code>null</code> if the given array does not contain non-null elements.</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 this method can not determine a common CRS, or if a transformation failed.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="GeneralEnvelope.html#add(org.opengis.geometry.Envelope)"><code>GeneralEnvelope.add(Envelope)</code></a></dd>
 </dl>
 </li>
 </ul>
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 <pre class="methodSignature">public static&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/CoordinateOperation.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">CoordinateOperation</a>&nbsp;findOperation&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;source,
                                                 <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;target)
                                          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">Finds a mathematical operation from the CRS of the given source envelope to the CRS of the given target envelope.
  For non-null georeferenced envelopes, this method is equivalent to the following code with <code>areaOfInterest</code>
  computed as the union of the two envelopes:

  <blockquote><code>return <a href="../referencing/CRS.html#findOperation(org.opengis.referencing.crs.CoordinateReferenceSystem,org.opengis.referencing.crs.CoordinateReferenceSystem,org.opengis.metadata.extent.GeographicBoundingBox)">CRS.findOperation(CoordinateReferenceSystem, CoordinateReferenceSystem,
  GeographicBoundingBox)</a> CRS.findOperation(source.getCoordinateReferenceSystem(), target.getCoordinateReferenceSystem(),
  <var>areaOfInterest</var>)</code></blockquote>

  If at least one envelope is null or has no CRS, then this method returns <code>null</code>.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>source</code> - the source envelope, or <code>null</code>.</dd>
 <dd><code>target</code> - the target envelope, or <code>null</code>.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the mathematical operation from <code>source</code> CRS to <code>target</code> CRS,
          or <code>null</code> if at least one argument is null or has no CRS.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/OperationNotFoundException.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">OperationNotFoundException</a></code> - if no operation was found between the given pair of CRS.</dd>
 <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 the operation can not be created for another reason.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../referencing/CRS.html#findOperation(org.opengis.referencing.crs.CoordinateReferenceSystem,org.opengis.referencing.crs.CoordinateReferenceSystem,org.opengis.metadata.extent.GeographicBoundingBox)"><code>CRS.findOperation(CoordinateReferenceSystem, CoordinateReferenceSystem, GeographicBoundingBox)</code></a></dd>
 </dl>
 </li>
 </ul>
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 <h4>intersect</h4>
 <pre class="methodSignature">public static&nbsp;<a href="GeneralEnvelope.html" title="class in org.apache.sis.geometry">GeneralEnvelope</a>&nbsp;intersect&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>...&nbsp;envelopes)
                                  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">Computes the intersection of all given envelopes, transforming them to a common CRS if necessary.
  If all envelopes use the same CRS (<a href="../util/ComparisonMode.html#IGNORE_METADATA"><code>ignoring metadata</code></a>)
  or if the CRS of all envelopes is <code>null</code>, then the <a href="GeneralEnvelope.html#intersect(org.opengis.geometry.Envelope)">intersection is computed</a> without transforming any envelope. Otherwise all envelopes are transformed to a
  <a href="../referencing/CRS.html#suggestCommonTarget(org.opengis.metadata.extent.GeographicBoundingBox,org.opengis.referencing.crs.CoordinateReferenceSystem...)">common CRS</a> before intersection is computed.
  The CRS of the returned envelope may different than the CRS of all given envelopes.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>envelopes</code> - the envelopes for which to compute intersection. Null elements are ignored.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>intersection of given envelopes, or <code>null</code> if the given array does not contain non-null elements.</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 this method can not determine a common CRS, or if a transformation failed.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>1.0</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="GeneralEnvelope.html#intersect(org.opengis.geometry.Envelope)"><code>GeneralEnvelope.intersect(Envelope)</code></a></dd>
 </dl>
 </li>
 </ul>
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 <pre class="methodSignature">public static&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;transform&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;envelope,
                                  <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/crs/CoordinateReferenceSystem.html?is-external=true" title="class or interface in org.opengis.referencing.crs" class="externalLink">CoordinateReferenceSystem</a>&nbsp;targetCRS)
                           throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/TransformException.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">TransformException</a></pre>
 <div class="block">Transforms the given envelope to the specified CRS. If any argument is null, or if the
  <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true#getCoordinateReferenceSystem()" title="class or interface in org.opengis.geometry" class="externalLink">envelope CRS</a> is null or the
  same instance than the given target CRS, then the given envelope is returned unchanged.
  Otherwise a new transformed envelope is returned.

  <div class="section">Performance tip</div>
  If there is many envelopes to transform with the same source and target CRS, then it is more efficient
  to get the <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/CoordinateOperation.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink"><code>CoordinateOperation</code></a> or <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"><code>MathTransform</code></a> instance once and invoke one of the
  others <code>transform(…)</code> methods.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>envelope</code> - the envelope to transform (may be <code>null</code>).</dd>
 <dd><code>targetCRS</code> - the target CRS (may be <code>null</code>).</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a new transformed envelope, or directly <code>envelope</code> if no change was required.</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 transformation was required and failed.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>0.5</dd>
 </dl>
 </li>
 </ul>
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 <pre class="methodSignature">public static&nbsp;<a href="GeneralEnvelope.html" title="class in org.apache.sis.geometry">GeneralEnvelope</a>&nbsp;transform&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/MathTransform.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">MathTransform</a>&nbsp;transform,
                                         <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;envelope)
                                  throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/TransformException.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">TransformException</a></pre>
 <div class="block">Transforms an envelope using the given math transform.
  The transformation is only approximated: the returned envelope may be bigger than necessary,
  or smaller than required if the bounding box contains a pole.
  The coordinate reference system of the returned envelope will be null.

  <div class="section">Limitation</div>
  This method can not handle the case where the envelope contains the North or South pole,
  or when it crosses the ±180° longitude, because <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"><code>MathTransform</code></a> does not carry sufficient information.
  For a more robust envelope transformation, use <a href="#transform(org.opengis.referencing.operation.CoordinateOperation,org.opengis.geometry.Envelope)"><code>transform(CoordinateOperation, Envelope)</code></a> instead.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>transform</code> - the transform to use.</dd>
 <dd><code>envelope</code> - envelope to transform, or <code>null</code>. This envelope will not be modified.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the transformed envelope, or <code>null</code> if <code>envelope</code> was null.</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 transform failed.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>0.5</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="#transform(org.opengis.referencing.operation.CoordinateOperation,org.opengis.geometry.Envelope)"><code>transform(CoordinateOperation, Envelope)</code></a></dd>
 </dl>
 </li>
 </ul>
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 <pre class="methodSignature">public static&nbsp;<a href="GeneralEnvelope.html" title="class in org.apache.sis.geometry">GeneralEnvelope</a>&nbsp;transform&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/CoordinateOperation.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">CoordinateOperation</a>&nbsp;operation,
                                         <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;envelope)
                                  throws <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/operation/TransformException.html?is-external=true" title="class or interface in org.opengis.referencing.operation" class="externalLink">TransformException</a></pre>
 <div class="block">Transforms an envelope using the given coordinate operation.
  The transformation is only approximated: the returned envelope may be bigger than the
  smallest possible bounding box, but should not be smaller in most cases.

  <p>This method can handle the case where the envelope contains the North or South pole,
  or when it cross the ±180° longitude.</p>

  <div class="note"><b>Note:</b>
  If the envelope CRS is non-null, then the caller should ensure that the operation source CRS
  is the same than the envelope CRS. In case of mismatch, this method transforms the envelope
  to the operation source CRS before to apply the operation. This extra step may cause a lost
  of accuracy. In order to prevent this method from performing such pre-transformation (if not desired),
  callers can ensure that the envelope CRS is <code>null</code> before to call this method.</div></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>operation</code> - the operation to use.</dd>
 <dd><code>envelope</code> - envelope to transform, or <code>null</code>. This envelope will not be modified.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the transformed envelope, or <code>null</code> if <code>envelope</code> was null.</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 transform failed.</dd>
 <dt><span class="simpleTagLabel">Since:</span></dt>
 <dd>0.5</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="#transform(org.opengis.referencing.operation.MathTransform,org.opengis.geometry.Envelope)"><code>transform(MathTransform, Envelope)</code></a></dd>
 </dl>
 </li>
 </ul>
 <a id="fromWKT(java.lang.CharSequence)">
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 <h4>fromWKT</h4>
 <pre class="methodSignature">public static&nbsp;<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;fromWKT&#8203;(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html?is-external=true" title="class or interface in java.lang" class="externalLink">CharSequence</a>&nbsp;wkt)
                         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 bounding box of a geometry defined in <cite>Well Known Text</cite> (WKT) format.
  This method does not check the consistency of the provided WKT. For example it does not check
  that every points in a <code>LINESTRING</code> have the same dimension. However this method
  ensures that the parenthesis are balanced, in order to catch some malformed WKT.

  <p>Example:</p>
  <ul>
    <li><code>BOX(-180 -90, 180 90)</code> (not really a geometry, but understood by many software products)</li>
    <li><code>POINT(6 10)</code></li>
    <li><code>MULTIPOLYGON(((1 1, 5 1, 1 5, 1 1),(2 2, 3 2, 3 3, 2 2)))</code></li>
    <li><code>GEOMETRYCOLLECTION(POINT(4 6),LINESTRING(3 8,7 10))</code></li>
  </ul>

  See <a href="GeneralEnvelope.html#%3Cinit%3E(java.lang.CharSequence)"><code>GeneralEnvelope(CharSequence)</code></a> for more information about the
  parsing rules.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>wkt</code> - the <code>BOX</code>, <code>POLYGON</code> or other kind of element to parse.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the envelope of the given geometry.</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 the given WKT can not be parsed.</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="#toString(org.opengis.geometry.Envelope)"><code>toString(Envelope)</code></a>,
 <a href="../referencing/CRS.html#fromWKT(java.lang.String)"><code>CRS.fromWKT(String)</code></a>,
 <a href="../io/wkt/package-summary.html"><code>org.apache.sis.io.wkt</code></a></dd>
 </dl>
 </li>
 </ul>
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 <!--   -->
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 <h4>toString</h4>
 <pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;toString&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;envelope)</pre>
 <div class="block">Formats the given envelope as a <code>BOX</code> element. The output is like below,
  where <var>n</var> is the <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true#getDimension()" title="class or interface in org.opengis.geometry" class="externalLink">number of dimensions</a>
  (omitted if equals to 2):

  <blockquote><code>BOX</code><var>n</var><code>D(</code><a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true#getLowerCorner()" title="class or interface in org.opengis.geometry" class="externalLink">lower
  corner</a><code>,</code> <a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true#getUpperCorner()" title="class or interface in org.opengis.geometry" class="externalLink">upper corner</a><code>)</code></blockquote>

  <div class="note"><b>Note:</b>
  The <code>BOX</code> element is not part of the standard <cite>Well Known Text</cite> (WKT) format.
  However it is understood by many software libraries, for example GDAL and PostGIS.</div>

  The string returned by this method can be <a href="GeneralEnvelope.html#%3Cinit%3E(java.lang.CharSequence)">parsed</a> by the <code>GeneralEnvelope</code> constructor.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>envelope</code> - the envelope to format.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>this envelope as a <code>BOX</code> or <code>BOX3D</code> (most typical dimensions) element.</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="#fromWKT(java.lang.CharSequence)"><code>fromWKT(CharSequence)</code></a>,
 <a href="../io/wkt/package-summary.html"><code>org.apache.sis.io.wkt</code></a></dd>
 </dl>
 </li>
 </ul>
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 <pre class="methodSignature">public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;toPolygonWKT&#8203;(<a href="http://www.geoapi.org/3.0/javadoc/org/opengis/geometry/Envelope.html?is-external=true" title="class or interface in org.opengis.geometry" class="externalLink">Envelope</a>&nbsp;envelope)
                            throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></pre>
 <div class="block">Formats the given envelope as a <code>POLYGON</code> element in the <cite>Well Known Text</cite>
  (WKT) format. <code>POLYGON</code> can be used as an alternative to <code>BOX</code> when the element
  needs to be considered as a standard WKT geometry.

  <p>The string returned by this method can be <a href="GeneralEnvelope.html#%3Cinit%3E(java.lang.CharSequence)">parsed</a> by the <code>GeneralEnvelope</code> constructor.</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>envelope</code> - the envelope to format.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the envelope as a <code>POLYGON</code> in WKT format.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if the given envelope can not be formatted.</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../io/wkt/package-summary.html"><code>org.apache.sis.io.wkt</code></a></dd>
 </dl>
 </li>
 </ul>
 </li>
 </ul>
 </section>
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 </ul>
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