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<p>A class representing an interval.
<a href="class_qwt_interval.html#details">More...</a></p>
<p><code>#include <<a class="el" href="qwt__interval_8h_source.html">qwt_interval.h</a>></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:a3a4b4e49495108c660fc07a62af7ac54"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54">BorderFlag</a> { <a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54ad8a550b5eb1062cd84bcba22c60e5e60">IncludeBorders</a> = 0x00,
<a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54aa7fde04c41d882187bb13f0104da7240">ExcludeMinimum</a> = 0x01,
<a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54a70e70e65956ae319e507bc38b792c434">ExcludeMaximum</a> = 0x02,
<a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54afc7d2a399b311a1cc8026681410fc22c">ExcludeBorders</a> = ExcludeMinimum | ExcludeMaximum
}</td></tr>
<tr class="separator:a3a4b4e49495108c660fc07a62af7ac54"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a678a26fcaa91cca596d9aebcbf5776c9"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a678a26fcaa91cca596d9aebcbf5776c9"></a>
typedef QFlags< <a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54">BorderFlag</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a678a26fcaa91cca596d9aebcbf5776c9">BorderFlags</a></td></tr>
<tr class="memdesc:a678a26fcaa91cca596d9aebcbf5776c9"><td class="mdescLeft"> </td><td class="mdescRight">Border flags. <br /></td></tr>
<tr class="separator:a678a26fcaa91cca596d9aebcbf5776c9"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:acd8699b69f46bcea31fa225d1425add3"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#acd8699b69f46bcea31fa225d1425add3">QwtInterval</a> ()</td></tr>
<tr class="memdesc:acd8699b69f46bcea31fa225d1425add3"><td class="mdescLeft"> </td><td class="mdescRight">Default Constructor. <a href="#acd8699b69f46bcea31fa225d1425add3">More...</a><br /></td></tr>
<tr class="separator:acd8699b69f46bcea31fa225d1425add3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6c48e99ff0a44784a4084dd8b1bc3fec"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a6c48e99ff0a44784a4084dd8b1bc3fec">QwtInterval</a> (double <a class="el" href="class_qwt_interval.html#a173c9193bd16f99589db60326df04310">minValue</a>, double <a class="el" href="class_qwt_interval.html#aac7cffc81147c07efc4a95c2e6222a1a">maxValue</a>, <a class="el" href="class_qwt_interval.html#a678a26fcaa91cca596d9aebcbf5776c9">BorderFlags</a>=<a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54ad8a550b5eb1062cd84bcba22c60e5e60">IncludeBorders</a>)</td></tr>
<tr class="separator:a6c48e99ff0a44784a4084dd8b1bc3fec"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0373ca3cdb22ed507e4188fd06f68b17"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a0373ca3cdb22ed507e4188fd06f68b17">setInterval</a> (double <a class="el" href="class_qwt_interval.html#a173c9193bd16f99589db60326df04310">minValue</a>, double <a class="el" href="class_qwt_interval.html#aac7cffc81147c07efc4a95c2e6222a1a">maxValue</a>, <a class="el" href="class_qwt_interval.html#a678a26fcaa91cca596d9aebcbf5776c9">BorderFlags</a>=<a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54ad8a550b5eb1062cd84bcba22c60e5e60">IncludeBorders</a>)</td></tr>
<tr class="separator:a0373ca3cdb22ed507e4188fd06f68b17"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a662aa6c6f7d575c72023eb32c0974508"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a662aa6c6f7d575c72023eb32c0974508">normalized</a> () const </td></tr>
<tr class="memdesc:a662aa6c6f7d575c72023eb32c0974508"><td class="mdescLeft"> </td><td class="mdescRight">Normalize the limits of the interval. <a href="#a662aa6c6f7d575c72023eb32c0974508">More...</a><br /></td></tr>
<tr class="separator:a662aa6c6f7d575c72023eb32c0974508"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac55c2cc97b9f7973cb3fab4536f48486"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#ac55c2cc97b9f7973cb3fab4536f48486">inverted</a> () const </td></tr>
<tr class="separator:ac55c2cc97b9f7973cb3fab4536f48486"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7ba77698fdc61495ff4fbbaf3095184b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a7ba77698fdc61495ff4fbbaf3095184b">limited</a> (double <a class="el" href="class_qwt_interval.html#a173c9193bd16f99589db60326df04310">minValue</a>, double <a class="el" href="class_qwt_interval.html#aac7cffc81147c07efc4a95c2e6222a1a">maxValue</a>) const </td></tr>
<tr class="separator:a7ba77698fdc61495ff4fbbaf3095184b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aec5aa21ab413fb5bfaa3360fae02e6b2"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#aec5aa21ab413fb5bfaa3360fae02e6b2">operator==</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &) const </td></tr>
<tr class="memdesc:aec5aa21ab413fb5bfaa3360fae02e6b2"><td class="mdescLeft"> </td><td class="mdescRight">Compare two intervals. <a href="#aec5aa21ab413fb5bfaa3360fae02e6b2">More...</a><br /></td></tr>
<tr class="separator:aec5aa21ab413fb5bfaa3360fae02e6b2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4c1cb8360a05c1875f7957f00d3bdf16"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a4c1cb8360a05c1875f7957f00d3bdf16">operator!=</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &) const </td></tr>
<tr class="memdesc:a4c1cb8360a05c1875f7957f00d3bdf16"><td class="mdescLeft"> </td><td class="mdescRight">Compare two intervals. <a href="#a4c1cb8360a05c1875f7957f00d3bdf16">More...</a><br /></td></tr>
<tr class="separator:a4c1cb8360a05c1875f7957f00d3bdf16"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad1bce23251519f0d44937413f8547dc5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#ad1bce23251519f0d44937413f8547dc5">setBorderFlags</a> (<a class="el" href="class_qwt_interval.html#a678a26fcaa91cca596d9aebcbf5776c9">BorderFlags</a>)</td></tr>
<tr class="separator:ad1bce23251519f0d44937413f8547dc5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a885306d2a8538fe37c1446853aa18018"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html#a678a26fcaa91cca596d9aebcbf5776c9">BorderFlags</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a885306d2a8538fe37c1446853aa18018">borderFlags</a> () const </td></tr>
<tr class="separator:a885306d2a8538fe37c1446853aa18018"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a173c9193bd16f99589db60326df04310"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a173c9193bd16f99589db60326df04310">minValue</a> () const </td></tr>
<tr class="separator:a173c9193bd16f99589db60326df04310"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aac7cffc81147c07efc4a95c2e6222a1a"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#aac7cffc81147c07efc4a95c2e6222a1a">maxValue</a> () const </td></tr>
<tr class="separator:aac7cffc81147c07efc4a95c2e6222a1a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7cded184fdbb9e30756f422ceca7522e"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a7cded184fdbb9e30756f422ceca7522e">width</a> () const </td></tr>
<tr class="memdesc:a7cded184fdbb9e30756f422ceca7522e"><td class="mdescLeft"> </td><td class="mdescRight">Return the width of an interval. <a href="#a7cded184fdbb9e30756f422ceca7522e">More...</a><br /></td></tr>
<tr class="separator:a7cded184fdbb9e30756f422ceca7522e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab993dac41ca70402e0cb4f9f980d90f0"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#ab993dac41ca70402e0cb4f9f980d90f0">setMinValue</a> (double)</td></tr>
<tr class="separator:ab993dac41ca70402e0cb4f9f980d90f0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3eeedaf35966d535670863cb0f97613a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a3eeedaf35966d535670863cb0f97613a">setMaxValue</a> (double)</td></tr>
<tr class="separator:a3eeedaf35966d535670863cb0f97613a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a862ee5d96ed32b991a0bbeed0e836560"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a862ee5d96ed32b991a0bbeed0e836560">contains</a> (double value) const </td></tr>
<tr class="separator:a862ee5d96ed32b991a0bbeed0e836560"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a46a768a591a9a600f9885bd15a60da5b"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a46a768a591a9a600f9885bd15a60da5b">intersects</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &) const </td></tr>
<tr class="memdesc:a46a768a591a9a600f9885bd15a60da5b"><td class="mdescLeft"> </td><td class="mdescRight">Test if two intervals overlap. <a href="#a46a768a591a9a600f9885bd15a60da5b">More...</a><br /></td></tr>
<tr class="separator:a46a768a591a9a600f9885bd15a60da5b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa4df23450ffa012e1fedd13509402483"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#aa4df23450ffa012e1fedd13509402483">intersect</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &) const </td></tr>
<tr class="memdesc:aa4df23450ffa012e1fedd13509402483"><td class="mdescLeft"> </td><td class="mdescRight">Intersect 2 intervals. <a href="#aa4df23450ffa012e1fedd13509402483">More...</a><br /></td></tr>
<tr class="separator:aa4df23450ffa012e1fedd13509402483"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ade8626dc4c9521e05ce7fc51cb58d730"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ade8626dc4c9521e05ce7fc51cb58d730"></a>
<a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#ade8626dc4c9521e05ce7fc51cb58d730">unite</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &) const </td></tr>
<tr class="memdesc:ade8626dc4c9521e05ce7fc51cb58d730"><td class="mdescLeft"> </td><td class="mdescRight">Unite 2 intervals. <br /></td></tr>
<tr class="separator:ade8626dc4c9521e05ce7fc51cb58d730"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac6c5c7837821811f8b0748c529f137a6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#ac6c5c7837821811f8b0748c529f137a6">operator|</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &) const </td></tr>
<tr class="separator:ac6c5c7837821811f8b0748c529f137a6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a87091a809fb14d2321240be47bb9cbe1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a87091a809fb14d2321240be47bb9cbe1">operator&</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &) const </td></tr>
<tr class="memdesc:a87091a809fb14d2321240be47bb9cbe1"><td class="mdescLeft"> </td><td class="mdescRight">Intersection of two intervals. <a href="#a87091a809fb14d2321240be47bb9cbe1">More...</a><br /></td></tr>
<tr class="separator:a87091a809fb14d2321240be47bb9cbe1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a980e6449437b689893bd8ec7370e91e0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a980e6449437b689893bd8ec7370e91e0">operator|=</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &)</td></tr>
<tr class="memdesc:a980e6449437b689893bd8ec7370e91e0"><td class="mdescLeft"> </td><td class="mdescRight">Unite this interval with the given interval. <a href="#a980e6449437b689893bd8ec7370e91e0">More...</a><br /></td></tr>
<tr class="separator:a980e6449437b689893bd8ec7370e91e0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a31b75687b9d2e1931ec82f61cc644222"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a31b75687b9d2e1931ec82f61cc644222">operator&=</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &)</td></tr>
<tr class="memdesc:a31b75687b9d2e1931ec82f61cc644222"><td class="mdescLeft"> </td><td class="mdescRight">Intersect this interval with the given interval. <a href="#a31b75687b9d2e1931ec82f61cc644222">More...</a><br /></td></tr>
<tr class="separator:a31b75687b9d2e1931ec82f61cc644222"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a484665e4af4ea42583b3224c10d1d9c3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a484665e4af4ea42583b3224c10d1d9c3">extend</a> (double value) const </td></tr>
<tr class="memdesc:a484665e4af4ea42583b3224c10d1d9c3"><td class="mdescLeft"> </td><td class="mdescRight">Extend the interval. <a href="#a484665e4af4ea42583b3224c10d1d9c3">More...</a><br /></td></tr>
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<tr class="memitem:ae0671b0b9422d5da3a103cbd7c938484"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#ae0671b0b9422d5da3a103cbd7c938484">operator|</a> (double) const </td></tr>
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<tr class="memitem:a86a2785d0fc6860e15cfc277c14e7a09"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a86a2785d0fc6860e15cfc277c14e7a09">operator|=</a> (double)</td></tr>
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<tr class="memitem:af7ddb2347a4b5ed2205f84372e41c99e"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#af7ddb2347a4b5ed2205f84372e41c99e">isValid</a> () const </td></tr>
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<tr class="memitem:ac5e85b71e18fa43c92984e08c4549830"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#ac5e85b71e18fa43c92984e08c4549830">isNull</a> () const </td></tr>
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<tr class="memitem:a66c1d4ed7836dfbf3c6e851479ff32cf"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a66c1d4ed7836dfbf3c6e851479ff32cf">invalidate</a> ()</td></tr>
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<tr class="memitem:a86dae3b22782b8548fd4e2c625bf1830"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_interval.html#a86dae3b22782b8548fd4e2c625bf1830">symmetrize</a> (double value) const </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>A class representing an interval. </p>
<p>The interval is represented by 2 doubles, the lower and the upper limit. </p>
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<td class="memname">enum <a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54">QwtInterval::BorderFlag</a></td>
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<p>Flag indicating if a border is included or excluded </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#ad1bce23251519f0d44937413f8547dc5">setBorderFlags()</a>, <a class="el" href="class_qwt_interval.html#a885306d2a8538fe37c1446853aa18018">borderFlags()</a> </dd></dl>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a class="anchor" id="a3a4b4e49495108c660fc07a62af7ac54ad8a550b5eb1062cd84bcba22c60e5e60"></a>IncludeBorders </td><td class="fielddoc">
<p>Min/Max values are inside the interval. </p>
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<tr><td class="fieldname"><a class="anchor" id="a3a4b4e49495108c660fc07a62af7ac54aa7fde04c41d882187bb13f0104da7240"></a>ExcludeMinimum </td><td class="fielddoc">
<p>Min value is not included in the interval. </p>
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<p>Max value is not included in the interval. </p>
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<p>Min/Max values are not included in the interval. </p>
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<h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">QwtInterval::QwtInterval </td>
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<p>Default Constructor. </p>
<p>Creates an invalid interval [0.0, -1.0] </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#a0373ca3cdb22ed507e4188fd06f68b17">setInterval()</a>, <a class="el" href="class_qwt_interval.html#af7ddb2347a4b5ed2205f84372e41c99e">isValid()</a> </dd></dl>
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<td class="memname">QwtInterval::QwtInterval </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>minValue</em>, </td>
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<td class="paramname"><em>borderFlags</em> = <code><a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54ad8a550b5eb1062cd84bcba22c60e5e60">IncludeBorders</a></code> </td>
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<p>Constructor</p>
<p>Build an interval with from min/max values</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">minValue</td><td>Minimum value </td></tr>
<tr><td class="paramname">maxValue</td><td>Maximum value </td></tr>
<tr><td class="paramname">borderFlags</td><td>Include/Exclude borders </td></tr>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname"><a class="el" href="class_qwt_interval.html#a678a26fcaa91cca596d9aebcbf5776c9">QwtInterval::BorderFlags</a> QwtInterval::borderFlags </td>
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<dl class="section return"><dt>Returns</dt><dd>Border flags </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#ad1bce23251519f0d44937413f8547dc5">setBorderFlags()</a> </dd></dl>
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<td class="memname">bool QwtInterval::contains </td>
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<p>Test if a value is inside an interval</p>
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<tr><td class="paramname">value</td><td>Value </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true, if value >= <a class="el" href="class_qwt_interval.html#a173c9193bd16f99589db60326df04310">minValue()</a> && value <= <a class="el" href="class_qwt_interval.html#aac7cffc81147c07efc4a95c2e6222a1a">maxValue()</a> </dd></dl>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> QwtInterval::extend </td>
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<p>Extend the interval. </p>
<p>If value is below <a class="el" href="class_qwt_interval.html#a173c9193bd16f99589db60326df04310">minValue()</a>, value becomes the lower limit. If value is above <a class="el" href="class_qwt_interval.html#aac7cffc81147c07efc4a95c2e6222a1a">maxValue()</a>, value becomes the upper limit.</p>
<p><a class="el" href="class_qwt_interval.html#a484665e4af4ea42583b3224c10d1d9c3" title="Extend the interval. ">extend()</a> has no effect for invalid intervals</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">value</td><td>Value </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>extended interval</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#af7ddb2347a4b5ed2205f84372e41c99e">isValid()</a> </dd></dl>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> QwtInterval::intersect </td>
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<p>Intersect 2 intervals. </p>
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<tr><td class="paramname">other</td><td>Interval to be intersect with </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Intersection </dd></dl>
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<td class="memname">bool QwtInterval::intersects </td>
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<td class="paramname"><em>other</em></td><td>)</td>
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<p>Test if two intervals overlap. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">other</td><td>Interval </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>True, when the intervals are intersecting </dd></dl>
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<p>Invalidate the interval</p>
<p>The limits are set to interval [0.0, -1.0] </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#af7ddb2347a4b5ed2205f84372e41c99e">isValid()</a> </dd></dl>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> QwtInterval::inverted </td>
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<p>Invert the limits of the interval </p><dl class="section return"><dt>Returns</dt><dd>Inverted interval </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#a662aa6c6f7d575c72023eb32c0974508" title="Normalize the limits of the interval. ">normalized()</a> </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>true, if <a class="el" href="class_qwt_interval.html#af7ddb2347a4b5ed2205f84372e41c99e">isValid()</a> && (<a class="el" href="class_qwt_interval.html#a173c9193bd16f99589db60326df04310">minValue()</a> >= <a class="el" href="class_qwt_interval.html#aac7cffc81147c07efc4a95c2e6222a1a">maxValue()</a>) </dd></dl>
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<p>A interval is valid when <a class="el" href="class_qwt_interval.html#a173c9193bd16f99589db60326df04310">minValue()</a> <= <a class="el" href="class_qwt_interval.html#aac7cffc81147c07efc4a95c2e6222a1a">maxValue()</a>. In case of <a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54afc7d2a399b311a1cc8026681410fc22c" title="Min/Max values are not included in the interval. ">QwtInterval::ExcludeBorders</a> it is true when <a class="el" href="class_qwt_interval.html#a173c9193bd16f99589db60326df04310">minValue()</a> < <a class="el" href="class_qwt_interval.html#aac7cffc81147c07efc4a95c2e6222a1a">maxValue()</a></p>
<dl class="section return"><dt>Returns</dt><dd>True, when the interval is valid </dd></dl>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> QwtInterval::limited </td>
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<p>Limit the interval, keeping the border modes</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">lowerBound</td><td>Lower limit </td></tr>
<tr><td class="paramname">upperBound</td><td>Upper limit</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Limited interval </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>Upper limit of the interval </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>Lower limit of the interval </dd></dl>
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<p>Normalize the limits of the interval. </p>
<p>If <a class="el" href="class_qwt_interval.html#aac7cffc81147c07efc4a95c2e6222a1a">maxValue()</a> < <a class="el" href="class_qwt_interval.html#a173c9193bd16f99589db60326df04310">minValue()</a> the limits will be inverted. </p><dl class="section return"><dt>Returns</dt><dd>Normalized interval</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#af7ddb2347a4b5ed2205f84372e41c99e">isValid()</a>, <a class="el" href="class_qwt_interval.html#ac55c2cc97b9f7973cb3fab4536f48486">inverted()</a> </dd></dl>
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<td class="memname">bool QwtInterval::operator!= </td>
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<p>Compare two intervals. </p>
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<dl class="section return"><dt>Returns</dt><dd>True, when this and other are not equal </dd></dl>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> QwtInterval::operator& </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td>
<td class="paramname"><em>other</em></td><td>)</td>
<td> const</td>
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<p>Intersection of two intervals. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">other</td><td>Interval to intersect with </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Intersection of this and other</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#aa4df23450ffa012e1fedd13509402483" title="Intersect 2 intervals. ">intersect()</a> </dd></dl>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> & QwtInterval::operator&= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td>
<td class="paramname"><em>other</em></td><td>)</td>
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<p>Intersect this interval with the given interval. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">other</td><td>Interval to be intersected with </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>This interval </dd></dl>
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<td class="memname">bool QwtInterval::operator== </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td>
<td class="paramname"><em>other</em></td><td>)</td>
<td> const</td>
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<p>Compare two intervals. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">other</td><td>Interval to compare with </td></tr>
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</dd>
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<dl class="section return"><dt>Returns</dt><dd>True, when this and other are equal </dd></dl>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> QwtInterval::operator| </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td>
<td class="paramname"><em>other</em></td><td>)</td>
<td> const</td>
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<p>Union of two intervals</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">other</td><td>Interval to unite with </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Union of this and other</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#ade8626dc4c9521e05ce7fc51cb58d730" title="Unite 2 intervals. ">unite()</a> </dd></dl>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> QwtInterval::operator| </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>value</em></td><td>)</td>
<td> const</td>
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<p>Extend an interval</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">value</td><td>Value </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Extended interval </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#a484665e4af4ea42583b3224c10d1d9c3" title="Extend the interval. ">extend()</a> </dd></dl>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> & QwtInterval::operator|= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td>
<td class="paramname"><em>other</em></td><td>)</td>
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<p>Unite this interval with the given interval. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">other</td><td>Interval to be united with </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>This interval </dd></dl>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> & QwtInterval::operator|= </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>value</em></td><td>)</td>
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<p>Extend an interval</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">value</td><td>Value </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Reference of the extended interval</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#a484665e4af4ea42583b3224c10d1d9c3" title="Extend the interval. ">extend()</a> </dd></dl>
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<td class="memname">void QwtInterval::setBorderFlags </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_interval.html#a678a26fcaa91cca596d9aebcbf5776c9">BorderFlags</a> </td>
<td class="paramname"><em>borderFlags</em></td><td>)</td>
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<p>Change the border flags</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">borderFlags</td><td>Or'd BorderMode flags </td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#a885306d2a8538fe37c1446853aa18018">borderFlags()</a> </dd></dl>
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<td class="memname">void QwtInterval::setInterval </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>minValue</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">double </td>
<td class="paramname"><em>maxValue</em>, </td>
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<td class="paramtype"><a class="el" href="class_qwt_interval.html#a678a26fcaa91cca596d9aebcbf5776c9">BorderFlags</a> </td>
<td class="paramname"><em>borderFlags</em> = <code><a class="el" href="class_qwt_interval.html#a3a4b4e49495108c660fc07a62af7ac54ad8a550b5eb1062cd84bcba22c60e5e60">IncludeBorders</a></code> </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<p>Assign the limits of the interval</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">minValue</td><td>Minimum value </td></tr>
<tr><td class="paramname">maxValue</td><td>Maximum value </td></tr>
<tr><td class="paramname">borderFlags</td><td>Include/Exclude borders </td></tr>
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</dd>
</dl>
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<td class="memname">void QwtInterval::setMaxValue </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>maxValue</em></td><td>)</td>
<td></td>
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<p>Assign the upper limit of the interval</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">maxValue</td><td>Maximum value </td></tr>
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</dd>
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<td class="memname">void QwtInterval::setMinValue </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>minValue</em></td><td>)</td>
<td></td>
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<p>Assign the lower limit of the interval</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">minValue</td><td>Minimum value </td></tr>
</table>
</dd>
</dl>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> QwtInterval::symmetrize </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>value</em></td><td>)</td>
<td> const</td>
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<p>Adjust the limit that is closer to value, so that value becomes the center of the interval.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">value</td><td>Center </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Interval with value as center </dd></dl>
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<td class="memname">double QwtInterval::width </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Return the width of an interval. </p>
<p>The width of invalid intervals is 0.0, otherwise the result is <a class="el" href="class_qwt_interval.html#aac7cffc81147c07efc4a95c2e6222a1a">maxValue()</a> - <a class="el" href="class_qwt_interval.html#a173c9193bd16f99589db60326df04310">minValue()</a>.</p>
<dl class="section return"><dt>Returns</dt><dd>Interval width </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_interval.html#af7ddb2347a4b5ed2205f84372e41c99e">isValid()</a> </dd></dl>
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