1037 lines
62 KiB
HTML
1037 lines
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<div class="title">QwtAbstractScale Class Reference</div> </div>
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<p>An abstract base class for widgets having a scale.
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<p><code>#include <<a class="el" href="qwt__abstract__scale_8h_source.html">qwt_abstract_scale.h</a>></code></p>
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Inheritance diagram for QwtAbstractScale:</div>
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<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:a97fff64367cdbe7bc8dc56c41d5faf9e"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a97fff64367cdbe7bc8dc56c41d5faf9e">QwtAbstractScale</a> (QWidget *parent=NULL)</td></tr>
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<tr class="separator:a97fff64367cdbe7bc8dc56c41d5faf9e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a73890593efff11427ea7a42a3ebadefd"><td class="memItemLeft" align="right" valign="top"><a id="a73890593efff11427ea7a42a3ebadefd"></a>
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virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a73890593efff11427ea7a42a3ebadefd">~QwtAbstractScale</a> ()</td></tr>
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<tr class="memdesc:a73890593efff11427ea7a42a3ebadefd"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br /></td></tr>
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<tr class="separator:a73890593efff11427ea7a42a3ebadefd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae9640e814b5029d7dd79cb3ba752102b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#ae9640e814b5029d7dd79cb3ba752102b">setScale</a> (double <a class="el" href="class_qwt_abstract_scale.html#a41b46b9bf8b6d7986cc64c766f3b667c">lowerBound</a>, double <a class="el" href="class_qwt_abstract_scale.html#ae5696dae4e4cc4332a84453a0ce18cc8">upperBound</a>)</td></tr>
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<tr class="memdesc:ae9640e814b5029d7dd79cb3ba752102b"><td class="mdescLeft"> </td><td class="mdescRight">Specify a scale. <a href="class_qwt_abstract_scale.html#ae9640e814b5029d7dd79cb3ba752102b">More...</a><br /></td></tr>
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<tr class="separator:ae9640e814b5029d7dd79cb3ba752102b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab54877c80f0b00fdb6e4745448aee128"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#ab54877c80f0b00fdb6e4745448aee128">setScale</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &)</td></tr>
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<tr class="memdesc:ab54877c80f0b00fdb6e4745448aee128"><td class="mdescLeft"> </td><td class="mdescRight">Specify a scale. <a href="class_qwt_abstract_scale.html#ab54877c80f0b00fdb6e4745448aee128">More...</a><br /></td></tr>
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<tr class="separator:ab54877c80f0b00fdb6e4745448aee128"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ad002e1a352ecf85c1a8595a138d42db7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#ad002e1a352ecf85c1a8595a138d42db7">setScale</a> (const <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> &)</td></tr>
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<tr class="memdesc:ad002e1a352ecf85c1a8595a138d42db7"><td class="mdescLeft"> </td><td class="mdescRight">Specify a scale. <a href="class_qwt_abstract_scale.html#ad002e1a352ecf85c1a8595a138d42db7">More...</a><br /></td></tr>
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<tr class="separator:ad002e1a352ecf85c1a8595a138d42db7"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a68d4d5a6f44ae4574d5ad8200aaa017f"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a68d4d5a6f44ae4574d5ad8200aaa017f">scaleDiv</a> () const</td></tr>
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<tr class="separator:a68d4d5a6f44ae4574d5ad8200aaa017f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa1b73da4589370fc14fd2ef49b02d142"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#aa1b73da4589370fc14fd2ef49b02d142">setLowerBound</a> (double value)</td></tr>
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<tr class="separator:aa1b73da4589370fc14fd2ef49b02d142"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a41b46b9bf8b6d7986cc64c766f3b667c"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a41b46b9bf8b6d7986cc64c766f3b667c">lowerBound</a> () const</td></tr>
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<tr class="separator:a41b46b9bf8b6d7986cc64c766f3b667c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1b2ea5c97eb19ccd55ec83713ab675fe"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a1b2ea5c97eb19ccd55ec83713ab675fe">setUpperBound</a> (double value)</td></tr>
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<tr class="separator:a1b2ea5c97eb19ccd55ec83713ab675fe"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae5696dae4e4cc4332a84453a0ce18cc8"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#ae5696dae4e4cc4332a84453a0ce18cc8">upperBound</a> () const</td></tr>
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<tr class="separator:ae5696dae4e4cc4332a84453a0ce18cc8"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aac745efd9414e529794e2189f7c535cb"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#aac745efd9414e529794e2189f7c535cb">setScaleStepSize</a> (double stepSize)</td></tr>
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<tr class="memdesc:aac745efd9414e529794e2189f7c535cb"><td class="mdescLeft"> </td><td class="mdescRight">Set the step size used for calculating a scale division. <a href="class_qwt_abstract_scale.html#aac745efd9414e529794e2189f7c535cb">More...</a><br /></td></tr>
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<tr class="separator:aac745efd9414e529794e2189f7c535cb"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a6fa69e27596cef1672cf8bf3c3dc547c"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a6fa69e27596cef1672cf8bf3c3dc547c">scaleStepSize</a> () const</td></tr>
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<tr class="separator:a6fa69e27596cef1672cf8bf3c3dc547c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a40fdb4572ad8fdec8b93766ff5f8eda8"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a40fdb4572ad8fdec8b93766ff5f8eda8">setScaleMaxMajor</a> (int ticks)</td></tr>
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<tr class="memdesc:a40fdb4572ad8fdec8b93766ff5f8eda8"><td class="mdescLeft"> </td><td class="mdescRight">Set the maximum number of major tick intervals. <a href="class_qwt_abstract_scale.html#a40fdb4572ad8fdec8b93766ff5f8eda8">More...</a><br /></td></tr>
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<tr class="separator:a40fdb4572ad8fdec8b93766ff5f8eda8"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae6e5881dddd6d1340be4750c115d29dd"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#ae6e5881dddd6d1340be4750c115d29dd">scaleMaxMinor</a> () const</td></tr>
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<tr class="separator:ae6e5881dddd6d1340be4750c115d29dd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a6520bb1e52571f865b21b3710786a4db"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a6520bb1e52571f865b21b3710786a4db">setScaleMaxMinor</a> (int ticks)</td></tr>
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<tr class="memdesc:a6520bb1e52571f865b21b3710786a4db"><td class="mdescLeft"> </td><td class="mdescRight">Set the maximum number of minor tick intervals. <a href="class_qwt_abstract_scale.html#a6520bb1e52571f865b21b3710786a4db">More...</a><br /></td></tr>
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<tr class="separator:a6520bb1e52571f865b21b3710786a4db"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a951e85ddbf8b0edaa91a9d300a92dd4e"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a951e85ddbf8b0edaa91a9d300a92dd4e">scaleMaxMajor</a> () const</td></tr>
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<tr class="separator:a951e85ddbf8b0edaa91a9d300a92dd4e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa00f44140af3f2b7595cb6e23371198f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#aa00f44140af3f2b7595cb6e23371198f">setScaleEngine</a> (<a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> *)</td></tr>
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<tr class="memdesc:aa00f44140af3f2b7595cb6e23371198f"><td class="mdescLeft"> </td><td class="mdescRight">Set a scale engine. <a href="class_qwt_abstract_scale.html#aa00f44140af3f2b7595cb6e23371198f">More...</a><br /></td></tr>
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<tr class="separator:aa00f44140af3f2b7595cb6e23371198f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5dc4f746d4dfacb8a1a57cf85deccf64"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a5dc4f746d4dfacb8a1a57cf85deccf64">scaleEngine</a> () const</td></tr>
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<tr class="separator:a5dc4f746d4dfacb8a1a57cf85deccf64"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aea3b9d4912f1c28671f232e4100936d7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#aea3b9d4912f1c28671f232e4100936d7">scaleEngine</a> ()</td></tr>
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<tr class="memitem:a6fac557f38c8121b97fda514cf91bcbf"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a6fac557f38c8121b97fda514cf91bcbf">transform</a> (double) const</td></tr>
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<tr class="memitem:a50932c4bed140da5ce96b6718de2636b"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a50932c4bed140da5ce96b6718de2636b">invTransform</a> (int) const</td></tr>
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<tr class="memitem:a8c649b5b370b06f5028fb83b78189e4a"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a8c649b5b370b06f5028fb83b78189e4a">isInverted</a> () const</td></tr>
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<tr class="memitem:a87eb18286615cf791d90a2b1388ac19a"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a87eb18286615cf791d90a2b1388ac19a">minimum</a> () const</td></tr>
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<tr class="memitem:ab904fda71caf6fc642ce6f12bac78b77"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#ab904fda71caf6fc642ce6f12bac78b77">maximum</a> () const</td></tr>
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<tr class="memitem:a116c7877f4d9fc3620ffa713b5bbdb96"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a116c7877f4d9fc3620ffa713b5bbdb96">scaleMap</a> () const</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="pro-methods"></a>
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Protected Member Functions</h2></td></tr>
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<tr class="memitem:af0927183d21284a5c37a82a04bfe2942"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#af0927183d21284a5c37a82a04bfe2942">changeEvent</a> (QEvent *) override</td></tr>
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<tr class="memitem:a647e6458305a0967077f4b1f03811c14"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a647e6458305a0967077f4b1f03811c14">rescale</a> (double <a class="el" href="class_qwt_abstract_scale.html#a41b46b9bf8b6d7986cc64c766f3b667c">lowerBound</a>, double <a class="el" href="class_qwt_abstract_scale.html#ae5696dae4e4cc4332a84453a0ce18cc8">upperBound</a>, double stepSize)</td></tr>
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<tr class="memitem:a950c5bf521dc704b78f76c7951346288"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a950c5bf521dc704b78f76c7951346288">setAbstractScaleDraw</a> (<a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> *)</td></tr>
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<tr class="memdesc:a950c5bf521dc704b78f76c7951346288"><td class="mdescLeft"> </td><td class="mdescRight">Set a scale draw. <a href="class_qwt_abstract_scale.html#a950c5bf521dc704b78f76c7951346288">More...</a><br /></td></tr>
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<tr class="memitem:a473e84e72bd52afac58c04d004b5c06a"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a473e84e72bd52afac58c04d004b5c06a">abstractScaleDraw</a> () const</td></tr>
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<tr class="memitem:aa61afdff037ef745a6dad686537cdb96"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#aa61afdff037ef745a6dad686537cdb96">abstractScaleDraw</a> ()</td></tr>
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<tr class="memitem:ad4015d13f98c9a48fb5d6321647f1323"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#ad4015d13f98c9a48fb5d6321647f1323">updateScaleDraw</a> ()</td></tr>
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<tr class="memitem:a0dbb7bdc557c0a7b163643e41970ed6a"><td class="memItemLeft" align="right" valign="top"><a id="a0dbb7bdc557c0a7b163643e41970ed6a"></a>
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virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a0dbb7bdc557c0a7b163643e41970ed6a">scaleChange</a> ()</td></tr>
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<tr class="memdesc:a0dbb7bdc557c0a7b163643e41970ed6a"><td class="mdescLeft"> </td><td class="mdescRight">Notify changed scale. <br /></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>An abstract base class for widgets having a scale. </p>
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<p>The scale of an <a class="el" href="class_qwt_abstract_scale.html" title="An abstract base class for widgets having a scale.">QwtAbstractScale</a> is determined by a <a class="el" href="class_qwt_scale_div.html" title="A class representing a scale division.">QwtScaleDiv</a> definition, that contains the boundaries and the ticks of the scale. The scale is painted using a <a class="el" href="class_qwt_scale_draw.html" title="A class for drawing scales.">QwtScaleDraw</a> object.</p>
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<p>The scale division might be assigned explicitly - but usually it is calculated from the boundaries using a <a class="el" href="class_qwt_scale_engine.html" title="Base class for scale engines.">QwtScaleEngine</a>.</p>
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<p>The scale engine also decides the type of transformation of the scale ( linear, logarithmic ... ). </p>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8h_source.html#l00036">36</a> of file <a class="el" href="qwt__abstract__scale_8h_source.html">qwt_abstract_scale.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a97fff64367cdbe7bc8dc56c41d5faf9e">◆ </a></span>QwtAbstractScale()</h2>
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<td class="memname">QwtAbstractScale::QwtAbstractScale </td>
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<td>(</td>
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<td class="paramtype">QWidget * </td>
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<td class="paramname"><em>parent</em> = <code>NULL</code></td><td>)</td>
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<p>Constructor</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">parent</td><td>Parent widget</td></tr>
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<p>Creates a default <a class="el" href="class_qwt_scale_draw.html" title="A class for drawing scales.">QwtScaleDraw</a> and a <a class="el" href="class_qwt_linear_scale_engine.html" title="A scale engine for linear scales.">QwtLinearScaleEngine</a>. The initial scale boundaries are set to [ 0.0, 100.0 ]</p>
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<p>The <a class="el" href="class_qwt_abstract_scale.html#a6fa69e27596cef1672cf8bf3c3dc547c">scaleStepSize()</a> is initialized to 0.0, <a class="el" href="class_qwt_abstract_scale.html#a951e85ddbf8b0edaa91a9d300a92dd4e">scaleMaxMajor()</a> to 5 and scaleMaxMajor to 3. </p>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00057">57</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<a id="aa61afdff037ef745a6dad686537cdb96"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#aa61afdff037ef745a6dad686537cdb96">◆ </a></span>abstractScaleDraw() <span class="overload">[1/2]</span></h2>
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<td class="memname"><a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> * QwtAbstractScale::abstractScaleDraw </td>
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<td>(</td>
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<dl class="section return"><dt>Returns</dt><dd>Scale draw </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a950c5bf521dc704b78f76c7951346288" title="Set a scale draw.">setAbstractScaleDraw()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00293">293</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<td class="memname">const <a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> * QwtAbstractScale::abstractScaleDraw </td>
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<span class="mlabels"><span class="mlabel">protected</span></span> </td>
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<dl class="section return"><dt>Returns</dt><dd>Scale draw </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a950c5bf521dc704b78f76c7951346288" title="Set a scale draw.">setAbstractScaleDraw()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00302">302</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#af0927183d21284a5c37a82a04bfe2942">◆ </a></span>changeEvent()</h2>
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<span class="mlabels"><span class="mlabel">override</span><span class="mlabel">protected</span><span class="mlabel">virtual</span></span> </td>
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<p>Change Event handler </p><dl class="params"><dt>Parameters</dt><dd>
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<p>Invalidates internal caches if necessary </p>
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<p>Reimplemented in <a class="el" href="class_qwt_thermo.html#aaa00f3c0a2956a0e9b353a01d23e066a">QwtThermo</a>, <a class="el" href="class_qwt_slider.html#a9acccaebdc86ab29d15d258d7f3cf589">QwtSlider</a>, <a class="el" href="class_qwt_knob.html#aa9da0adea40d576b8a1165888e35e275">QwtKnob</a>, and <a class="el" href="class_qwt_dial.html#a43147378d83c6467e683c3eed9d6c11c">QwtDial</a>.</p>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00453">453</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a50932c4bed140da5ce96b6718de2636b">◆ </a></span>invTransform()</h2>
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<p>Translate a widget coordinate into a scale value</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section return"><dt>Returns</dt><dd>Corresponding scale coordinate for value </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a116c7877f4d9fc3620ffa713b5bbdb96">scaleMap()</a>, <a class="el" href="class_qwt_abstract_scale.html#a6fac557f38c8121b97fda514cf91bcbf">transform()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00381">381</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<dl class="section return"><dt>Returns</dt><dd>True, when the scale is increasing in opposite direction to the widget coordinates </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00390">390</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<dl class="section return"><dt>Returns</dt><dd>Lower bound of the scale </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#aa1b73da4589370fc14fd2ef49b02d142">setLowerBound()</a>, <a class="el" href="class_qwt_abstract_scale.html#ae9640e814b5029d7dd79cb3ba752102b" title="Specify a scale.">setScale()</a>, <a class="el" href="class_qwt_abstract_scale.html#ae5696dae4e4cc4332a84453a0ce18cc8">upperBound()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00088">88</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<dl class="section return"><dt>Returns</dt><dd>The boundary with the larger value </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a87eb18286615cf791d90a2b1388ac19a">minimum()</a>, <a class="el" href="class_qwt_abstract_scale.html#a41b46b9bf8b6d7986cc64c766f3b667c">lowerBound()</a>, <a class="el" href="class_qwt_abstract_scale.html#ae5696dae4e4cc4332a84453a0ce18cc8">upperBound()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00409">409</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<dl class="section return"><dt>Returns</dt><dd>The boundary with the smaller value </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00399">399</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<p>Recalculate the scale division and update the scale.</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">lowerBound</td><td>Lower limit of the scale interval </td></tr>
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<tr><td class="paramname">upperBound</td><td>Upper limit of the scale interval </td></tr>
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<tr><td class="paramname">stepSize</td><td>Major step size</td></tr>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a0dbb7bdc557c0a7b163643e41970ed6a" title="Notify changed scale.">scaleChange()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00429">429</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a68d4d5a6f44ae4574d5ad8200aaa017f">◆ </a></span>scaleDiv()</h2>
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<td class="memname">const <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> & QwtAbstractScale::scaleDiv </td>
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<dl class="section return"><dt>Returns</dt><dd>Scale boundaries and positions of the ticks</dd></dl>
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<p>The scale division might have been assigned explicitly or calculated implicitly by <a class="el" href="class_qwt_abstract_scale.html#a647e6458305a0967077f4b1f03811c14">rescale()</a>. </p>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00349">349</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aea3b9d4912f1c28671f232e4100936d7">◆ </a></span>scaleEngine() <span class="overload">[1/2]</span></h2>
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<td class="memname"><a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> * QwtAbstractScale::scaleEngine </td>
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<td>(</td>
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<dl class="section return"><dt>Returns</dt><dd>Scale engine </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#aa00f44140af3f2b7595cb6e23371198f" title="Set a scale engine.">setScaleEngine()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00338">338</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<td class="memname">const <a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> * QwtAbstractScale::scaleEngine </td>
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<dl class="section return"><dt>Returns</dt><dd>Scale engine </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#aa00f44140af3f2b7595cb6e23371198f" title="Set a scale engine.">setScaleEngine()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00329">329</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a116c7877f4d9fc3620ffa713b5bbdb96">◆ </a></span>scaleMap()</h2>
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<td class="memname">const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> & QwtAbstractScale::scaleMap </td>
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<dl class="section return"><dt>Returns</dt><dd>Map to translate between scale and widget coordinates </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00357">357</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a951e85ddbf8b0edaa91a9d300a92dd4e">◆ </a></span>scaleMaxMajor()</h2>
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<td class="memname">int QwtAbstractScale::scaleMaxMajor </td>
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<dl class="section return"><dt>Returns</dt><dd>Maximal number of major tick intervals </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a40fdb4572ad8fdec8b93766ff5f8eda8" title="Set the maximum number of major tick intervals.">setScaleMaxMajor()</a>, <a class="el" href="class_qwt_abstract_scale.html#ae6e5881dddd6d1340be4750c115d29dd">scaleMaxMinor()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00202">202</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae6e5881dddd6d1340be4750c115d29dd">◆ </a></span>scaleMaxMinor()</h2>
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<td class="memname">int QwtAbstractScale::scaleMaxMinor </td>
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<dl class="section return"><dt>Returns</dt><dd>Maximal number of minor tick intervals </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a6520bb1e52571f865b21b3710786a4db" title="Set the maximum number of minor tick intervals.">setScaleMaxMinor()</a>, <a class="el" href="class_qwt_abstract_scale.html#a951e85ddbf8b0edaa91a9d300a92dd4e">scaleMaxMajor()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00232">232</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6fa69e27596cef1672cf8bf3c3dc547c">◆ </a></span>scaleStepSize()</h2>
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<td class="memname">double QwtAbstractScale::scaleStepSize </td>
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<dl class="section return"><dt>Returns</dt><dd>Hint for the step size of the scale </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#aac745efd9414e529794e2189f7c535cb" title="Set the step size used for calculating a scale division.">setScaleStepSize()</a>, <a class="el" href="class_qwt_scale_engine.html#ab85442ced7cf3a39e5ad25f8cb80dea4" title="Calculate a scale division.">QwtScaleEngine::divideScale()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00264">264</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a950c5bf521dc704b78f76c7951346288">◆ </a></span>setAbstractScaleDraw()</h2>
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<td class="paramtype"><a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> * </td>
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<p>Set a scale draw. </p>
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<p>scaleDraw has to be created with new and will be deleted in the destructor or the next call of <a class="el" href="class_qwt_abstract_scale.html#a950c5bf521dc704b78f76c7951346288" title="Set a scale draw.">setAbstractScaleDraw()</a>.</p>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#aa61afdff037ef745a6dad686537cdb96">abstractScaleDraw()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00277">277</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aa1b73da4589370fc14fd2ef49b02d142">◆ </a></span>setLowerBound()</h2>
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<td class="memname">void QwtAbstractScale::setLowerBound </td>
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<p>Set the lower bound of the scale</p>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a41b46b9bf8b6d7986cc64c766f3b667c">lowerBound()</a>, <a class="el" href="class_qwt_abstract_scale.html#ae9640e814b5029d7dd79cb3ba752102b" title="Specify a scale.">setScale()</a>, <a class="el" href="class_qwt_abstract_scale.html#a1b2ea5c97eb19ccd55ec83713ab675fe">setUpperBound()</a> </dd></dl>
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<dl class="section note"><dt>Note</dt><dd>For inverted scales the lower bound is greater than the upper bound </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00079">79</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab54877c80f0b00fdb6e4745448aee128">◆ </a></span>setScale() <span class="overload">[1/3]</span></h2>
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<p>Specify a scale. </p>
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<p>Define a scale by an interval</p>
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<p>The ticks are calculated using <a class="el" href="class_qwt_abstract_scale.html#ae6e5881dddd6d1340be4750c115d29dd">scaleMaxMinor()</a>, <a class="el" href="class_qwt_abstract_scale.html#a951e85ddbf8b0edaa91a9d300a92dd4e">scaleMaxMajor()</a> and <a class="el" href="class_qwt_abstract_scale.html#a6fa69e27596cef1672cf8bf3c3dc547c">scaleStepSize()</a>.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00145">145</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<p>Specify a scale. </p>
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<p><a class="el" href="class_qwt_abstract_scale.html#ae6e5881dddd6d1340be4750c115d29dd">scaleMaxMinor()</a>, <a class="el" href="class_qwt_abstract_scale.html#a951e85ddbf8b0edaa91a9d300a92dd4e">scaleMaxMajor()</a> and <a class="el" href="class_qwt_abstract_scale.html#a6fa69e27596cef1672cf8bf3c3dc547c">scaleStepSize()</a> and have no effect.</p>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00158">158</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<p>Specify a scale. </p>
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<p>Define a scale by an interval</p>
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<p>The ticks are calculated using <a class="el" href="class_qwt_abstract_scale.html#ae6e5881dddd6d1340be4750c115d29dd">scaleMaxMinor()</a>, <a class="el" href="class_qwt_abstract_scale.html#a951e85ddbf8b0edaa91a9d300a92dd4e">scaleMaxMajor()</a> and <a class="el" href="class_qwt_abstract_scale.html#a6fa69e27596cef1672cf8bf3c3dc547c">scaleStepSize()</a>.</p>
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<dl class="section note"><dt>Note</dt><dd>For inverted scales the lower bound is greater than the upper bound </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00130">130</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aa00f44140af3f2b7595cb6e23371198f">◆ </a></span>setScaleEngine()</h2>
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<td class="memname">void QwtAbstractScale::setScaleEngine </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> * </td>
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<td class="paramname"><em>scaleEngine</em></td><td>)</td>
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<p>Set a scale engine. </p>
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<p>The scale engine is responsible for calculating the scale division and provides a transformation between scale and widget coordinates.</p>
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<p>scaleEngine has to be created with new and will be deleted in the destructor or the next call of setScaleEngine. </p>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00316">316</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a40fdb4572ad8fdec8b93766ff5f8eda8">◆ </a></span>setScaleMaxMajor()</h2>
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<td class="memname">void QwtAbstractScale::setScaleMaxMajor </td>
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<td>(</td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>ticks</em></td><td>)</td>
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<p>Set the maximum number of major tick intervals. </p>
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<p>The scale's major ticks are calculated automatically such that the number of major intervals does not exceed ticks.</p>
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<p>The default value is 5.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">ticks</td><td>Maximal number of major ticks.</td></tr>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a951e85ddbf8b0edaa91a9d300a92dd4e">scaleMaxMajor()</a>, <a class="el" href="class_qwt_abstract_scale.html#a6520bb1e52571f865b21b3710786a4db" title="Set the maximum number of minor tick intervals.">setScaleMaxMinor()</a>, <a class="el" href="class_qwt_abstract_scale.html#aac745efd9414e529794e2189f7c535cb" title="Set the step size used for calculating a scale division.">setScaleStepSize()</a>, <a class="el" href="class_qwt_scale_engine.html#a7c60080fe83474eb50d5094b9f93d649">QwtScaleEngine::divideInterval()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00189">189</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6520bb1e52571f865b21b3710786a4db">◆ </a></span>setScaleMaxMinor()</h2>
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<td class="memname">void QwtAbstractScale::setScaleMaxMinor </td>
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<td>(</td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>ticks</em></td><td>)</td>
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<p>Set the maximum number of minor tick intervals. </p>
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<p>The scale's minor ticks are calculated automatically such that the number of minor intervals does not exceed ticks. The default value is 3.</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">ticks</td><td>Maximal number of minor ticks.</td></tr>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a951e85ddbf8b0edaa91a9d300a92dd4e">scaleMaxMajor()</a>, <a class="el" href="class_qwt_abstract_scale.html#a6520bb1e52571f865b21b3710786a4db" title="Set the maximum number of minor tick intervals.">setScaleMaxMinor()</a>, <a class="el" href="class_qwt_abstract_scale.html#aac745efd9414e529794e2189f7c535cb" title="Set the step size used for calculating a scale division.">setScaleStepSize()</a>, <a class="el" href="class_qwt_scale_engine.html#a7c60080fe83474eb50d5094b9f93d649">QwtScaleEngine::divideInterval()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00219">219</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aac745efd9414e529794e2189f7c535cb">◆ </a></span>setScaleStepSize()</h2>
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<td class="memname">void QwtAbstractScale::setScaleStepSize </td>
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<td class="paramname"><em>stepSize</em></td><td>)</td>
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<p>Set the step size used for calculating a scale division. </p>
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<p>The step size is hint for calculating the intervals for the major ticks of the scale. A value of 0.0 is interpreted as no hint.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">stepSize</td><td>Hint for the step size of the scale</td></tr>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a6fa69e27596cef1672cf8bf3c3dc547c">scaleStepSize()</a>, <a class="el" href="class_qwt_scale_engine.html#ab85442ced7cf3a39e5ad25f8cb80dea4" title="Calculate a scale division.">QwtScaleEngine::divideScale()</a></dd></dl>
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<dl class="section note"><dt>Note</dt><dd>Position and distance between the major ticks also depends on <a class="el" href="class_qwt_abstract_scale.html#a951e85ddbf8b0edaa91a9d300a92dd4e">scaleMaxMajor()</a>. </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00251">251</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a1b2ea5c97eb19ccd55ec83713ab675fe">◆ </a></span>setUpperBound()</h2>
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<td class="memname">void QwtAbstractScale::setUpperBound </td>
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<p>Set the upper bound of the scale</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">value</td><td>Upper bound</td></tr>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#ae5696dae4e4cc4332a84453a0ce18cc8">upperBound()</a>, <a class="el" href="class_qwt_abstract_scale.html#ae9640e814b5029d7dd79cb3ba752102b" title="Specify a scale.">setScale()</a>, <a class="el" href="class_qwt_abstract_scale.html#aa1b73da4589370fc14fd2ef49b02d142">setLowerBound()</a> </dd></dl>
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<dl class="section note"><dt>Note</dt><dd>For inverted scales the lower bound is greater than the upper bound </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00102">102</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6fac557f38c8121b97fda514cf91bcbf">◆ </a></span>transform()</h2>
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<td class="memname">int QwtAbstractScale::transform </td>
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<td> const</td>
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<p>Translate a scale value into a widget coordinate</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">value</td><td>Scale value </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Corresponding widget coordinate for value </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a116c7877f4d9fc3620ffa713b5bbdb96">scaleMap()</a>, <a class="el" href="class_qwt_abstract_scale.html#a50932c4bed140da5ce96b6718de2636b">invTransform()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00369">369</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ad4015d13f98c9a48fb5d6321647f1323">◆ </a></span>updateScaleDraw()</h2>
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<td class="memname">void QwtAbstractScale::updateScaleDraw </td>
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<span class="mlabels"><span class="mlabel">protected</span></span> </td>
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<p>Recalculate ticks and scale boundaries. </p>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00466">466</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae5696dae4e4cc4332a84453a0ce18cc8">◆ </a></span>upperBound()</h2>
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<td class="memname">double QwtAbstractScale::upperBound </td>
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<dl class="section return"><dt>Returns</dt><dd>Upper bound of the scale </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_abstract_scale.html#a1b2ea5c97eb19ccd55ec83713ab675fe">setUpperBound()</a>, <a class="el" href="class_qwt_abstract_scale.html#ae9640e814b5029d7dd79cb3ba752102b" title="Specify a scale.">setScale()</a>, <a class="el" href="class_qwt_abstract_scale.html#a41b46b9bf8b6d7986cc64c766f3b667c">lowerBound()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__abstract__scale_8cpp_source.html#l00111">111</a> of file <a class="el" href="qwt__abstract__scale_8cpp_source.html">qwt_abstract_scale.cpp</a>.</p>
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