605 lines
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605 lines
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 <span id="projectnumber">6.2.0</span>
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<a href="#pub-types">Public Types</a> |
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<div class="title">QwtMatrixRasterData Class Reference</div> </div>
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<p>A class representing a matrix of values as raster data.
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<a href="class_qwt_matrix_raster_data.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="qwt__matrix__raster__data_8h_source.html">qwt_matrix_raster_data.h</a>></code></p>
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<div class="dynheader">
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Inheritance diagram for QwtMatrixRasterData:</div>
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</div>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
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Public Types</h2></td></tr>
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<tr class="memitem:a3c8def5d9ae452bd82e6c4b71b480209"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209">ResampleMode</a> { <a class="el" href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209acaa0a9e3b8afd376472d6a587a3f9873">NearestNeighbour</a>
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, <a class="el" href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209a6f25a9f1f27cb94525ce39df487af13f">BilinearInterpolation</a>
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, <a class="el" href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209a9fde75b1f87fcdb21a5ef54bb3797700">BicubicInterpolation</a>
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}</td></tr>
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<tr class="memdesc:a3c8def5d9ae452bd82e6c4b71b480209"><td class="mdescLeft"> </td><td class="mdescRight">Resampling algorithm The default setting is NearestNeighbour;. <a href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209">More...</a><br /></td></tr>
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<tr class="separator:a3c8def5d9ae452bd82e6c4b71b480209"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="inherit_header pub_types_class_qwt_raster_data"><td colspan="2" onclick="javascript:toggleInherit('pub_types_class_qwt_raster_data')"><img src="closed.png" alt="-"/> Public Types inherited from <a class="el" href="class_qwt_raster_data.html">QwtRasterData</a></td></tr>
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<tr class="memitem:aa9a0ea0f92af158a354421c3651fdfaf inherit pub_types_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#aa9a0ea0f92af158a354421c3651fdfaf">Attribute</a> { <a class="el" href="class_qwt_raster_data.html#aa9a0ea0f92af158a354421c3651fdfafac421ef9c406513f8c068aa88794f48c2">WithoutGaps</a> = 0x01
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}</td></tr>
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<tr class="memdesc:aa9a0ea0f92af158a354421c3651fdfaf"><td class="mdescLeft"> </td><td class="mdescRight">Raster data attributes. <a href="class_qwt_raster_data.html#aa9a0ea0f92af158a354421c3651fdfaf">More...</a><br /></td></tr>
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<tr class="separator:aa9a0ea0f92af158a354421c3651fdfaf inherit pub_types_class_qwt_raster_data"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ac0053b66315fde6f0a9a69c40d7c5dcc inherit pub_types_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#ac0053b66315fde6f0a9a69c40d7c5dcc">ConrecFlag</a> { <a class="el" href="class_qwt_raster_data.html#ac0053b66315fde6f0a9a69c40d7c5dccafd2f6337e825201a247408f033713c92">IgnoreAllVerticesOnLevel</a> = 0x01
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, <a class="el" href="class_qwt_raster_data.html#ac0053b66315fde6f0a9a69c40d7c5dcca18e8d1de171dd43cc957c279eb03d32c">IgnoreOutOfRange</a> = 0x02
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}</td></tr>
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<tr class="memdesc:ac0053b66315fde6f0a9a69c40d7c5dcc"><td class="mdescLeft"> </td><td class="mdescRight">Flags to modify the contour algorithm. <a href="class_qwt_raster_data.html#ac0053b66315fde6f0a9a69c40d7c5dcc">More...</a><br /></td></tr>
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<tr class="separator:ac0053b66315fde6f0a9a69c40d7c5dcc inherit pub_types_class_qwt_raster_data"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a2632728957a7c118d225d63ab539b21d inherit pub_types_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top"><a id="a2632728957a7c118d225d63ab539b21d"></a>
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typedef <a class="el" href="class_q_map.html">QMap</a>< double, QPolygonF > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#a2632728957a7c118d225d63ab539b21d">ContourLines</a></td></tr>
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<tr class="memdesc:a2632728957a7c118d225d63ab539b21d inherit pub_types_class_qwt_raster_data"><td class="mdescLeft"> </td><td class="mdescRight">Contour lines. <br /></td></tr>
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<tr class="separator:a2632728957a7c118d225d63ab539b21d inherit pub_types_class_qwt_raster_data"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a6f5308c40f5394e3956cf0c03d75f2c6 inherit pub_types_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top">typedef QFlags< <a class="el" href="class_qwt_raster_data.html#aa9a0ea0f92af158a354421c3651fdfaf">Attribute</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#a6f5308c40f5394e3956cf0c03d75f2c6">Attributes</a></td></tr>
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<tr class="separator:a6f5308c40f5394e3956cf0c03d75f2c6 inherit pub_types_class_qwt_raster_data"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a32c7f179e655dcc2fca1fdb851c1570e inherit pub_types_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top">typedef QFlags< <a class="el" href="class_qwt_raster_data.html#ac0053b66315fde6f0a9a69c40d7c5dcc">ConrecFlag</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#a32c7f179e655dcc2fca1fdb851c1570e">ConrecFlags</a></td></tr>
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<tr class="separator:a32c7f179e655dcc2fca1fdb851c1570e inherit pub_types_class_qwt_raster_data"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:a3e80514459cc6aab03cfd839da53e45e"><td class="memItemLeft" align="right" valign="top"><a id="a3e80514459cc6aab03cfd839da53e45e"></a>
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 </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#a3e80514459cc6aab03cfd839da53e45e">QwtMatrixRasterData</a> ()</td></tr>
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<tr class="memdesc:a3e80514459cc6aab03cfd839da53e45e"><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <br /></td></tr>
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<tr class="separator:a3e80514459cc6aab03cfd839da53e45e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a15284284966f25383fe67f2e278f4869"><td class="memItemLeft" align="right" valign="top"><a id="a15284284966f25383fe67f2e278f4869"></a>
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virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#a15284284966f25383fe67f2e278f4869">~QwtMatrixRasterData</a> ()</td></tr>
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<tr class="memdesc:a15284284966f25383fe67f2e278f4869"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br /></td></tr>
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<tr class="separator:a15284284966f25383fe67f2e278f4869"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a038effe6e4be13725b7a8d35370595fd"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#a038effe6e4be13725b7a8d35370595fd">setResampleMode</a> (<a class="el" href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209">ResampleMode</a> mode)</td></tr>
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<tr class="memdesc:a038effe6e4be13725b7a8d35370595fd"><td class="mdescLeft"> </td><td class="mdescRight">Set the resampling algorithm. <a href="class_qwt_matrix_raster_data.html#a038effe6e4be13725b7a8d35370595fd">More...</a><br /></td></tr>
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<tr class="separator:a038effe6e4be13725b7a8d35370595fd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:afe2b274f467ae6ddb60c5d8f027ab8c6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209">ResampleMode</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#afe2b274f467ae6ddb60c5d8f027ab8c6">resampleMode</a> () const</td></tr>
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<tr class="separator:afe2b274f467ae6ddb60c5d8f027ab8c6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a69db38d8f920edb9dc3f0953ca16db8f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#a69db38d8f920edb9dc3f0953ca16db8f">setInterval</a> (Qt::Axis, const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &)</td></tr>
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<tr class="memdesc:a69db38d8f920edb9dc3f0953ca16db8f"><td class="mdescLeft"> </td><td class="mdescRight">Assign the bounding interval for an axis. <a href="class_qwt_matrix_raster_data.html#a69db38d8f920edb9dc3f0953ca16db8f">More...</a><br /></td></tr>
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<tr class="separator:a69db38d8f920edb9dc3f0953ca16db8f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1d8668b0d9fe4c98514e272837c2b563"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#a1d8668b0d9fe4c98514e272837c2b563">interval</a> (Qt::Axis axis) const override final</td></tr>
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<tr class="separator:a1d8668b0d9fe4c98514e272837c2b563"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a578ffc26f04a9099e2b31fc2d9360adb"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#a578ffc26f04a9099e2b31fc2d9360adb">setValueMatrix</a> (const <a class="el" href="class_q_vector.html">QVector</a>< double > &values, int <a class="el" href="class_qwt_matrix_raster_data.html#ab6c21de8fd8945b634624774f3b3d85b">numColumns</a>)</td></tr>
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<tr class="memdesc:a578ffc26f04a9099e2b31fc2d9360adb"><td class="mdescLeft"> </td><td class="mdescRight">Assign a value matrix. <a href="class_qwt_matrix_raster_data.html#a578ffc26f04a9099e2b31fc2d9360adb">More...</a><br /></td></tr>
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<tr class="separator:a578ffc26f04a9099e2b31fc2d9360adb"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a95b3ade23f3bce8b84702ce64cb20e3e"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_q_vector.html">QVector</a>< double > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#a95b3ade23f3bce8b84702ce64cb20e3e">valueMatrix</a> () const</td></tr>
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<tr class="separator:a95b3ade23f3bce8b84702ce64cb20e3e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a4601944bceabd921cdaa544180576274"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#a4601944bceabd921cdaa544180576274">setValue</a> (int row, int col, double <a class="el" href="class_qwt_matrix_raster_data.html#a0629b3294f3bcfd9cc210b06eeeff6c4">value</a>)</td></tr>
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<tr class="memdesc:a4601944bceabd921cdaa544180576274"><td class="mdescLeft"> </td><td class="mdescRight">Change a single value in the matrix. <a href="class_qwt_matrix_raster_data.html#a4601944bceabd921cdaa544180576274">More...</a><br /></td></tr>
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<tr class="separator:a4601944bceabd921cdaa544180576274"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab6c21de8fd8945b634624774f3b3d85b"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#ab6c21de8fd8945b634624774f3b3d85b">numColumns</a> () const</td></tr>
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<tr class="separator:ab6c21de8fd8945b634624774f3b3d85b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aca86a73cc956acce6edd9731482ccc11"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#aca86a73cc956acce6edd9731482ccc11">numRows</a> () const</td></tr>
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<tr class="separator:aca86a73cc956acce6edd9731482ccc11"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a8c32a3222b2b4ad15036898532e95ffa"><td class="memItemLeft" align="right" valign="top">virtual QRectF </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#a8c32a3222b2b4ad15036898532e95ffa">pixelHint</a> (const QRectF &) const override</td></tr>
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<tr class="memdesc:a8c32a3222b2b4ad15036898532e95ffa"><td class="mdescLeft"> </td><td class="mdescRight">Calculate the pixel hint. <a href="class_qwt_matrix_raster_data.html#a8c32a3222b2b4ad15036898532e95ffa">More...</a><br /></td></tr>
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<tr class="separator:a8c32a3222b2b4ad15036898532e95ffa"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a0629b3294f3bcfd9cc210b06eeeff6c4"><td class="memItemLeft" align="right" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_matrix_raster_data.html#a0629b3294f3bcfd9cc210b06eeeff6c4">value</a> (double x, double y) const override</td></tr>
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<tr class="inherit_header pub_methods_class_qwt_raster_data"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_qwt_raster_data')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_qwt_raster_data.html">QwtRasterData</a></td></tr>
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<tr class="memitem:a0fc20e05a794c0dc85f6ae5719566588 inherit pub_methods_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top"><a id="a0fc20e05a794c0dc85f6ae5719566588"></a>
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 </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#a0fc20e05a794c0dc85f6ae5719566588">QwtRasterData</a> ()</td></tr>
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<tr class="memdesc:a0fc20e05a794c0dc85f6ae5719566588 inherit pub_methods_class_qwt_raster_data"><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <br /></td></tr>
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<tr class="memitem:a95b24c7cad42c5f7947e64e990def3e8 inherit pub_methods_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top"><a id="a95b24c7cad42c5f7947e64e990def3e8"></a>
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virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#a95b24c7cad42c5f7947e64e990def3e8">~QwtRasterData</a> ()</td></tr>
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<tr class="memdesc:a95b24c7cad42c5f7947e64e990def3e8 inherit pub_methods_class_qwt_raster_data"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br /></td></tr>
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<tr class="memitem:aa4f0f8b9dcdc1f4ceef4429dd132f492 inherit pub_methods_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#aa4f0f8b9dcdc1f4ceef4429dd132f492">setAttribute</a> (<a class="el" href="class_qwt_raster_data.html#aa9a0ea0f92af158a354421c3651fdfaf">Attribute</a>, bool on=true)</td></tr>
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<tr class="memitem:a0df063cd367b161526429b671b0adebf inherit pub_methods_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#a0df063cd367b161526429b671b0adebf">testAttribute</a> (<a class="el" href="class_qwt_raster_data.html#aa9a0ea0f92af158a354421c3651fdfaf">Attribute</a>) const</td></tr>
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<tr class="memitem:a64f5bf40b6138cc66719a56555c03589 inherit pub_methods_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#a64f5bf40b6138cc66719a56555c03589">initRaster</a> (const QRectF &, const QSize &raster)</td></tr>
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<tr class="memdesc:a64f5bf40b6138cc66719a56555c03589 inherit pub_methods_class_qwt_raster_data"><td class="mdescLeft"> </td><td class="mdescRight">Initialize a raster. <a href="class_qwt_raster_data.html#a64f5bf40b6138cc66719a56555c03589">More...</a><br /></td></tr>
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<tr class="memitem:a369a5f525814bf569e01f88fbd8ddb5b inherit pub_methods_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#a369a5f525814bf569e01f88fbd8ddb5b">discardRaster</a> ()</td></tr>
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<tr class="memdesc:a369a5f525814bf569e01f88fbd8ddb5b inherit pub_methods_class_qwt_raster_data"><td class="mdescLeft"> </td><td class="mdescRight">Discard a raster. <a href="class_qwt_raster_data.html#a369a5f525814bf569e01f88fbd8ddb5b">More...</a><br /></td></tr>
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<tr class="memitem:a79e1f7503d18b9f42abc51a0446924f6 inherit pub_methods_class_qwt_raster_data"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_qwt_raster_data.html#a2632728957a7c118d225d63ab539b21d">ContourLines</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_raster_data.html#a79e1f7503d18b9f42abc51a0446924f6">contourLines</a> (const QRectF &rect, const QSize &raster, const <a class="el" href="class_q_list.html">QList</a>< double > &levels, <a class="el" href="class_qwt_raster_data.html#a32c7f179e655dcc2fca1fdb851c1570e">ConrecFlags</a>) const</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>A class representing a matrix of values as raster data. </p>
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<p><a class="el" href="class_qwt_matrix_raster_data.html" title="A class representing a matrix of values as raster data.">QwtMatrixRasterData</a> implements an interface for a matrix of equidistant values, that can be used by a <a class="el" href="class_qwt_plot_raster_item.html" title="A class, which displays raster data.">QwtPlotRasterItem</a>. It implements a couple of resampling algorithms, to provide values for positions, that or not on the value matrix. </p>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8h_source.html#l00028">28</a> of file <a class="el" href="qwt__matrix__raster__data_8h_source.html">qwt_matrix_raster_data.h</a>.</p>
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</div><h2 class="groupheader">Member Enumeration Documentation</h2>
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<a id="a3c8def5d9ae452bd82e6c4b71b480209"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a3c8def5d9ae452bd82e6c4b71b480209">◆ </a></span>ResampleMode</h2>
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<td class="memname">enum <a class="el" href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209">QwtMatrixRasterData::ResampleMode</a></td>
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<p>Resampling algorithm The default setting is NearestNeighbour;. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="a3c8def5d9ae452bd82e6c4b71b480209acaa0a9e3b8afd376472d6a587a3f9873"></a>NearestNeighbour </td><td class="fielddoc"><p>Return the value from the matrix, that is nearest to the the requested position. </p>
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</td></tr>
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<tr><td class="fieldname"><a id="a3c8def5d9ae452bd82e6c4b71b480209a6f25a9f1f27cb94525ce39df487af13f"></a>BilinearInterpolation </td><td class="fielddoc"><p>Interpolate the value from the distances and values of the 4 surrounding values in the matrix, </p>
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</td></tr>
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<tr><td class="fieldname"><a id="a3c8def5d9ae452bd82e6c4b71b480209a9fde75b1f87fcdb21a5ef54bb3797700"></a>BicubicInterpolation </td><td class="fielddoc"><p>Interpolate the value from the 16 surrounding values in the matrix using hermite bicubic interpolation </p>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8h_source.html#l00035">35</a> of file <a class="el" href="qwt__matrix__raster__data_8h_source.html">qwt_matrix_raster_data.h</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<a id="a1d8668b0d9fe4c98514e272837c2b563"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a1d8668b0d9fe4c98514e272837c2b563">◆ </a></span>interval()</h2>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> QwtMatrixRasterData::interval </td>
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<td>(</td>
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<td class="paramtype">Qt::Axis </td>
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<td class="paramname"><em>axis</em></td><td>)</td>
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<td> const</td>
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<span class="mlabels"><span class="mlabel">final</span><span class="mlabel">override</span><span class="mlabel">virtual</span></span> </td>
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<dl class="section return"><dt>Returns</dt><dd>Bounding interval for an axis </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_matrix_raster_data.html#a69db38d8f920edb9dc3f0953ca16db8f" title="Assign the bounding interval for an axis.">setInterval</a> </dd></dl>
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<p>Implements <a class="el" href="class_qwt_raster_data.html#abe716e1d7ba8b5319c98995cd34c952e">QwtRasterData</a>.</p>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8cpp_source.html#l00134">134</a> of file <a class="el" href="qwt__matrix__raster__data_8cpp_source.html">qwt_matrix_raster_data.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab6c21de8fd8945b634624774f3b3d85b">◆ </a></span>numColumns()</h2>
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<td class="memname">int QwtMatrixRasterData::numColumns </td>
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<dl class="section return"><dt>Returns</dt><dd>Number of columns of the value matrix </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_matrix_raster_data.html#a95b3ade23f3bce8b84702ce64cb20e3e">valueMatrix()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#aca86a73cc956acce6edd9731482ccc11">numRows()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#a578ffc26f04a9099e2b31fc2d9360adb" title="Assign a value matrix.">setValueMatrix()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8cpp_source.html#l00195">195</a> of file <a class="el" href="qwt__matrix__raster__data_8cpp_source.html">qwt_matrix_raster_data.cpp</a>.</p>
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<a id="aca86a73cc956acce6edd9731482ccc11"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#aca86a73cc956acce6edd9731482ccc11">◆ </a></span>numRows()</h2>
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<td class="memname">int QwtMatrixRasterData::numRows </td>
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<dl class="section return"><dt>Returns</dt><dd>Number of rows of the value matrix </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_matrix_raster_data.html#a95b3ade23f3bce8b84702ce64cb20e3e">valueMatrix()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#ab6c21de8fd8945b634624774f3b3d85b">numColumns()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#a578ffc26f04a9099e2b31fc2d9360adb" title="Assign a value matrix.">setValueMatrix()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8cpp_source.html#l00204">204</a> of file <a class="el" href="qwt__matrix__raster__data_8cpp_source.html">qwt_matrix_raster_data.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a8c32a3222b2b4ad15036898532e95ffa">◆ </a></span>pixelHint()</h2>
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<p>Calculate the pixel hint. </p>
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<p><a class="el" href="class_qwt_matrix_raster_data.html#a8c32a3222b2b4ad15036898532e95ffa" title="Calculate the pixel hint.">pixelHint()</a> returns the geometry of a pixel, that can be used to calculate the resolution and alignment of the plot item, that is representing the data.</p>
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<ul>
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<li>NearestNeighbour<br />
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<a class="el" href="class_qwt_matrix_raster_data.html#a8c32a3222b2b4ad15036898532e95ffa" title="Calculate the pixel hint.">pixelHint()</a> returns the surrounding pixel of the top left value in the matrix.</li>
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<li>BilinearInterpolation<br />
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Returns an empty rectangle recommending to render in target device ( f.e. screen ) resolution.</li>
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<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section return"><dt>Returns</dt><dd>Calculated hint</dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209" title="Resampling algorithm The default setting is NearestNeighbour;.">ResampleMode</a>, setMatrix(), <a class="el" href="class_qwt_matrix_raster_data.html#a69db38d8f920edb9dc3f0953ca16db8f" title="Assign the bounding interval for an axis.">setInterval()</a> </dd></dl>
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<p>Reimplemented from <a class="el" href="class_qwt_raster_data.html#a0557ff0444301b1c6dd9277d857d7ee7">QwtRasterData</a>.</p>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8cpp_source.html#l00229">229</a> of file <a class="el" href="qwt__matrix__raster__data_8cpp_source.html">qwt_matrix_raster_data.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#afe2b274f467ae6ddb60c5d8f027ab8c6">◆ </a></span>resampleMode()</h2>
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<td class="memname"><a class="el" href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209">QwtMatrixRasterData::ResampleMode</a> QwtMatrixRasterData::resampleMode </td>
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<dl class="section return"><dt>Returns</dt><dd>resampling algorithm </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_matrix_raster_data.html#a038effe6e4be13725b7a8d35370595fd" title="Set the resampling algorithm.">setResampleMode()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#a0629b3294f3bcfd9cc210b06eeeff6c4">value()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8cpp_source.html#l00099">99</a> of file <a class="el" href="qwt__matrix__raster__data_8cpp_source.html">qwt_matrix_raster_data.cpp</a>.</p>
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<p>Assign the bounding interval for an axis. </p>
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<p>Setting the bounding intervals for the X/Y axis is mandatory to define the positions for the values of the value matrix. The interval in Z direction defines the possible range for the values in the matrix, what is f.e used by <a class="el" href="class_qwt_plot_spectrogram.html" title="A plot item, which displays a spectrogram.">QwtPlotSpectrogram</a> to map values to colors. The Z-interval might be the bounding interval of the values in the matrix, but usually it isn't. ( f.e a interval of 0.0-100.0 for values in percentage )</p>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_raster_data.html#abe716e1d7ba8b5319c98995cd34c952e">QwtRasterData::interval()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#a578ffc26f04a9099e2b31fc2d9360adb" title="Assign a value matrix.">setValueMatrix()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8cpp_source.html#l00120">120</a> of file <a class="el" href="qwt__matrix__raster__data_8cpp_source.html">qwt_matrix_raster_data.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a038effe6e4be13725b7a8d35370595fd">◆ </a></span>setResampleMode()</h2>
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<td class="memname">void QwtMatrixRasterData::setResampleMode </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209">ResampleMode</a> </td>
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<td class="paramname"><em>mode</em></td><td>)</td>
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<p>Set the resampling algorithm. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">mode</td><td>Resampling mode </td></tr>
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</dd>
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</dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_matrix_raster_data.html#afe2b274f467ae6ddb60c5d8f027ab8c6">resampleMode()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#a0629b3294f3bcfd9cc210b06eeeff6c4">value()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8cpp_source.html#l00090">90</a> of file <a class="el" href="qwt__matrix__raster__data_8cpp_source.html">qwt_matrix_raster_data.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4601944bceabd921cdaa544180576274">◆ </a></span>setValue()</h2>
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<td class="memname">void QwtMatrixRasterData::setValue </td>
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<td>(</td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>row</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>col</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">double </td>
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<td class="paramname"><em>value</em> </td>
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<td></td>
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<td>)</td>
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<p>Change a single value in the matrix. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">row</td><td>Row index </td></tr>
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<tr><td class="paramname">col</td><td>Column index </td></tr>
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<tr><td class="paramname">value</td><td>New value</td></tr>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_matrix_raster_data.html#a0629b3294f3bcfd9cc210b06eeeff6c4">value()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#a578ffc26f04a9099e2b31fc2d9360adb" title="Assign a value matrix.">setValueMatrix()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8cpp_source.html#l00181">181</a> of file <a class="el" href="qwt__matrix__raster__data_8cpp_source.html">qwt_matrix_raster_data.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a578ffc26f04a9099e2b31fc2d9360adb">◆ </a></span>setValueMatrix()</h2>
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<td class="memname">void QwtMatrixRasterData::setValueMatrix </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="class_q_vector.html">QVector</a>< double > & </td>
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<td class="paramname"><em>values</em>, </td>
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<td class="paramname"><em>numColumns</em> </td>
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<td>)</td>
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<p>Assign a value matrix. </p>
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<p>The positions of the values are calculated by dividing the bounding rectangle of the X/Y intervals into equidistant rectangles ( pixels ). Each value corresponds to the center of a pixel.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">values</td><td>Vector of values </td></tr>
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<tr><td class="paramname">numColumns</td><td>Number of columns</td></tr>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_matrix_raster_data.html#a95b3ade23f3bce8b84702ce64cb20e3e">valueMatrix()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#ab6c21de8fd8945b634624774f3b3d85b">numColumns()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#aca86a73cc956acce6edd9731482ccc11">numRows()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#a69db38d8f920edb9dc3f0953ca16db8f" title="Assign the bounding interval for an axis.">setInterval()</a>() </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8cpp_source.html#l00155">155</a> of file <a class="el" href="qwt__matrix__raster__data_8cpp_source.html">qwt_matrix_raster_data.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a0629b3294f3bcfd9cc210b06eeeff6c4">◆ </a></span>value()</h2>
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<td class="memname">double QwtMatrixRasterData::value </td>
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<td>(</td>
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<td class="paramtype">double </td>
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<td class="paramname"><em>x</em>, </td>
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<span class="mlabels"><span class="mlabel">override</span><span class="mlabel">virtual</span></span> </td>
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<dl class="section return"><dt>Returns</dt><dd>the value at a raster position</dd></dl>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">x</td><td>X value in plot coordinates </td></tr>
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<tr><td class="paramname">y</td><td>Y value in plot coordinates</td></tr>
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</dd>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_matrix_raster_data.html#a3c8def5d9ae452bd82e6c4b71b480209" title="Resampling algorithm The default setting is NearestNeighbour;.">ResampleMode</a> </dd></dl>
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<p>Implements <a class="el" href="class_qwt_raster_data.html#a6396fc013fcec893b1e8cea4cf03691e">QwtRasterData</a>.</p>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8cpp_source.html#l00256">256</a> of file <a class="el" href="qwt__matrix__raster__data_8cpp_source.html">qwt_matrix_raster_data.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a95b3ade23f3bce8b84702ce64cb20e3e">◆ </a></span>valueMatrix()</h2>
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<td class="memname">const <a class="el" href="class_q_vector.html">QVector</a>< double > QwtMatrixRasterData::valueMatrix </td>
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<td>(</td>
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<dl class="section return"><dt>Returns</dt><dd>Value matrix </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_matrix_raster_data.html#a578ffc26f04a9099e2b31fc2d9360adb" title="Assign a value matrix.">setValueMatrix()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#ab6c21de8fd8945b634624774f3b3d85b">numColumns()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#aca86a73cc956acce6edd9731482ccc11">numRows()</a>, <a class="el" href="class_qwt_matrix_raster_data.html#a69db38d8f920edb9dc3f0953ca16db8f" title="Assign the bounding interval for an axis.">setInterval()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__matrix__raster__data_8cpp_source.html#l00167">167</a> of file <a class="el" href="qwt__matrix__raster__data_8cpp_source.html">qwt_matrix_raster_data.cpp</a>.</p>
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