611 lines
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611 lines
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 <span id="projectnumber">6.2.0</span>
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<a href="#pub-methods">Public Member Functions</a> |
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<a href="#pro-methods">Protected Member Functions</a> |
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<a href="class_qwt_log_scale_engine-members.html">List of all members</a> </div>
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<div class="title">QwtLogScaleEngine Class Reference</div> </div>
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<p>A scale engine for logarithmic scales.
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<a href="class_qwt_log_scale_engine.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="qwt__scale__engine_8h_source.html">qwt_scale_engine.h</a>></code></p>
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Inheritance diagram for QwtLogScaleEngine:</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:a68f89f870f918c2ecc56d8d2b0074a3a"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_log_scale_engine.html#a68f89f870f918c2ecc56d8d2b0074a3a">QwtLogScaleEngine</a> (uint <a class="el" href="class_qwt_scale_engine.html#ad8215bc78d938eb5d9ba23df7f48eaf1">base</a>=10)</td></tr>
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<tr class="separator:a68f89f870f918c2ecc56d8d2b0074a3a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ad749149c492c7105fb6e5518abd323c9"><td class="memItemLeft" align="right" valign="top"><a id="ad749149c492c7105fb6e5518abd323c9"></a>
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virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_log_scale_engine.html#ad749149c492c7105fb6e5518abd323c9">~QwtLogScaleEngine</a> ()</td></tr>
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<tr class="memdesc:ad749149c492c7105fb6e5518abd323c9"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br /></td></tr>
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<tr class="separator:ad749149c492c7105fb6e5518abd323c9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a6a6b2c27865daa73717bc4c40a2f4bbf"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_log_scale_engine.html#a6a6b2c27865daa73717bc4c40a2f4bbf">autoScale</a> (int maxNumSteps, double &x1, double &x2, double &stepSize) const override</td></tr>
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<tr class="separator:a6a6b2c27865daa73717bc4c40a2f4bbf"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5a996c9538fc1c7f767bb75cbf2aae8b"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_log_scale_engine.html#a5a996c9538fc1c7f767bb75cbf2aae8b">divideScale</a> (double x1, double x2, int maxMajorSteps, int maxMinorSteps, double stepSize=0.0) const override</td></tr>
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<tr class="memdesc:a5a996c9538fc1c7f767bb75cbf2aae8b"><td class="mdescLeft"> </td><td class="mdescRight">Calculate a scale division for an interval. <a href="class_qwt_log_scale_engine.html#a5a996c9538fc1c7f767bb75cbf2aae8b">More...</a><br /></td></tr>
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<tr class="separator:a5a996c9538fc1c7f767bb75cbf2aae8b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="inherit_header pub_methods_class_qwt_scale_engine"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_qwt_scale_engine')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a></td></tr>
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<tr class="memitem:a4ad501667558e5095d36cc190d12790d inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#a4ad501667558e5095d36cc190d12790d">QwtScaleEngine</a> (uint <a class="el" href="class_qwt_scale_engine.html#ad8215bc78d938eb5d9ba23df7f48eaf1">base</a>=10)</td></tr>
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<tr class="separator:a4ad501667558e5095d36cc190d12790d inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab9c21b4550d44d9a82c1865864cb8943 inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top"><a id="ab9c21b4550d44d9a82c1865864cb8943"></a>
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virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#ab9c21b4550d44d9a82c1865864cb8943">~QwtScaleEngine</a> ()</td></tr>
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<tr class="memdesc:ab9c21b4550d44d9a82c1865864cb8943 inherit pub_methods_class_qwt_scale_engine"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br /></td></tr>
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<tr class="separator:ab9c21b4550d44d9a82c1865864cb8943 inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:afdabe4fd2a89b7cd5a21cdc9ac2269d6 inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#afdabe4fd2a89b7cd5a21cdc9ac2269d6">setBase</a> (uint <a class="el" href="class_qwt_scale_engine.html#ad8215bc78d938eb5d9ba23df7f48eaf1">base</a>)</td></tr>
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<tr class="separator:afdabe4fd2a89b7cd5a21cdc9ac2269d6 inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ad8215bc78d938eb5d9ba23df7f48eaf1 inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">uint </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#ad8215bc78d938eb5d9ba23df7f48eaf1">base</a> () const</td></tr>
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<tr class="separator:ad8215bc78d938eb5d9ba23df7f48eaf1 inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:acf02a88f6e778edbc9e005960f35b3b7 inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#acf02a88f6e778edbc9e005960f35b3b7">setAttribute</a> (<a class="el" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5f">Attribute</a>, bool on=true)</td></tr>
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<tr class="memitem:a83a925f83808859d02c85fa0d3ae432e inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#a83a925f83808859d02c85fa0d3ae432e">testAttribute</a> (<a class="el" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5f">Attribute</a>) const</td></tr>
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<tr class="separator:a83a925f83808859d02c85fa0d3ae432e inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:acd73d5f27b5db0bc7ee673eb6fe9810d inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#acd73d5f27b5db0bc7ee673eb6fe9810d">setAttributes</a> (<a class="el" href="class_qwt_scale_engine.html#a4522bee6053c9be90b11586f4ceb3128">Attributes</a>)</td></tr>
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<tr class="memitem:ad988149efe820437d7ca1d653e68022e inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_scale_engine.html#a4522bee6053c9be90b11586f4ceb3128">Attributes</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#ad988149efe820437d7ca1d653e68022e">attributes</a> () const</td></tr>
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<tr class="separator:ad988149efe820437d7ca1d653e68022e inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa982167d8236dde0a6af3168ec8b46be inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#aa982167d8236dde0a6af3168ec8b46be">setReference</a> (double)</td></tr>
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<tr class="memdesc:aa982167d8236dde0a6af3168ec8b46be inherit pub_methods_class_qwt_scale_engine"><td class="mdescLeft"> </td><td class="mdescRight">Specify a reference point. <a href="class_qwt_scale_engine.html#aa982167d8236dde0a6af3168ec8b46be">More...</a><br /></td></tr>
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<tr class="separator:aa982167d8236dde0a6af3168ec8b46be inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a041c9485898ea504d9a57ad200438d72 inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#a041c9485898ea504d9a57ad200438d72">reference</a> () const</td></tr>
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<tr class="separator:a041c9485898ea504d9a57ad200438d72 inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aed2ab1fc105a25fa97bbecf4b2f541a7 inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#aed2ab1fc105a25fa97bbecf4b2f541a7">setMargins</a> (double lower, double upper)</td></tr>
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<tr class="memdesc:aed2ab1fc105a25fa97bbecf4b2f541a7 inherit pub_methods_class_qwt_scale_engine"><td class="mdescLeft"> </td><td class="mdescRight">Specify margins at the scale's endpoints. <a href="class_qwt_scale_engine.html#aed2ab1fc105a25fa97bbecf4b2f541a7">More...</a><br /></td></tr>
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<tr class="separator:aed2ab1fc105a25fa97bbecf4b2f541a7 inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:acb61bee5d09eef88aa06d6beb3c0f9c7 inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#acb61bee5d09eef88aa06d6beb3c0f9c7">lowerMargin</a> () const</td></tr>
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<tr class="separator:acb61bee5d09eef88aa06d6beb3c0f9c7 inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a7d135f0cd49cf9e8616a4d3cf27cd7b3 inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#a7d135f0cd49cf9e8616a4d3cf27cd7b3">upperMargin</a> () const</td></tr>
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<tr class="separator:a7d135f0cd49cf9e8616a4d3cf27cd7b3 inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ad063f4bb947996191be5c2a5fa0dbaf6 inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#ad063f4bb947996191be5c2a5fa0dbaf6">setTransformation</a> (<a class="el" href="class_qwt_transform.html">QwtTransform</a> *)</td></tr>
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<tr class="separator:ad063f4bb947996191be5c2a5fa0dbaf6 inherit pub_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a00f534b609582b8142b0ada5e9fe2eba inherit pub_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_transform.html">QwtTransform</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#a00f534b609582b8142b0ada5e9fe2eba">transformation</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:a758ce119c851b8dd1c77e7bfaaed235f"><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_log_scale_engine.html#a758ce119c851b8dd1c77e7bfaaed235f">align</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &, double stepSize) const</td></tr>
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<tr class="memdesc:a758ce119c851b8dd1c77e7bfaaed235f"><td class="mdescLeft"> </td><td class="mdescRight">Align an interval to a step size. <a href="class_qwt_log_scale_engine.html#a758ce119c851b8dd1c77e7bfaaed235f">More...</a><br /></td></tr>
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<tr class="separator:a758ce119c851b8dd1c77e7bfaaed235f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a4b0b0c31df7b8be1fcc0f9d7194a947a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_log_scale_engine.html#a4b0b0c31df7b8be1fcc0f9d7194a947a">buildTicks</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &, double stepSize, int maxMinorSteps, <a class="el" href="class_q_list.html">QList</a>< double > ticks[<a class="el" href="class_qwt_scale_div.html#af21aedaa886dd5e067cf63505838736ca86796bbf72d5eb7162a924ba27ce6553">QwtScaleDiv::NTickTypes</a>]) const</td></tr>
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<tr class="memdesc:a4b0b0c31df7b8be1fcc0f9d7194a947a"><td class="mdescLeft"> </td><td class="mdescRight">Calculate ticks for an interval. <a href="class_qwt_log_scale_engine.html#a4b0b0c31df7b8be1fcc0f9d7194a947a">More...</a><br /></td></tr>
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<tr class="separator:a4b0b0c31df7b8be1fcc0f9d7194a947a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a2f89c465872a5b5d241c2adf222fb235"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_q_list.html">QList</a>< double > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_log_scale_engine.html#a2f89c465872a5b5d241c2adf222fb235">buildMajorTicks</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &interval, double stepSize) const</td></tr>
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<tr class="memdesc:a2f89c465872a5b5d241c2adf222fb235"><td class="mdescLeft"> </td><td class="mdescRight">Calculate major ticks for an interval. <a href="class_qwt_log_scale_engine.html#a2f89c465872a5b5d241c2adf222fb235">More...</a><br /></td></tr>
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<tr class="separator:a2f89c465872a5b5d241c2adf222fb235"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a367407a70e704cde1d76d5b5718d3a02"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_log_scale_engine.html#a367407a70e704cde1d76d5b5718d3a02">buildMinorTicks</a> (const <a class="el" href="class_q_list.html">QList</a>< double > &majorTicks, int maxMinorSteps, double stepSize, <a class="el" href="class_q_list.html">QList</a>< double > &minorTicks, <a class="el" href="class_q_list.html">QList</a>< double > &mediumTicks) const</td></tr>
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<tr class="memdesc:a367407a70e704cde1d76d5b5718d3a02"><td class="mdescLeft"> </td><td class="mdescRight">Calculate minor/medium ticks for major ticks. <a href="class_qwt_log_scale_engine.html#a367407a70e704cde1d76d5b5718d3a02">More...</a><br /></td></tr>
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<tr class="separator:a367407a70e704cde1d76d5b5718d3a02"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="inherit_header pro_methods_class_qwt_scale_engine"><td colspan="2" onclick="javascript:toggleInherit('pro_methods_class_qwt_scale_engine')"><img src="closed.png" alt="-"/> Protected Member Functions inherited from <a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a></td></tr>
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<tr class="memitem:a7ffa5116aa2afda4515306c660f3c0ab inherit pro_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#a7ffa5116aa2afda4515306c660f3c0ab">contains</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &, double value) const</td></tr>
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<tr class="separator:a7ffa5116aa2afda4515306c660f3c0ab inherit pro_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a7216821d6866ff72d8367e86111397eb inherit pro_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_q_list.html">QList</a>< double > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#a7216821d6866ff72d8367e86111397eb">strip</a> (const <a class="el" href="class_q_list.html">QList</a>< double > &, const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &) const</td></tr>
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<tr class="separator:a7216821d6866ff72d8367e86111397eb inherit pro_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a7c60080fe83474eb50d5094b9f93d649 inherit pro_methods_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#a7c60080fe83474eb50d5094b9f93d649">divideInterval</a> (double intervalSize, int numSteps) const</td></tr>
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<tr class="separator:a7c60080fe83474eb50d5094b9f93d649 inherit pro_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a9d1e0ce7074caf0bb868bd41d251c838 inherit pro_methods_class_qwt_scale_engine"><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_scale_engine.html#a9d1e0ce7074caf0bb868bd41d251c838">buildInterval</a> (double value) const</td></tr>
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<tr class="memdesc:a9d1e0ce7074caf0bb868bd41d251c838 inherit pro_methods_class_qwt_scale_engine"><td class="mdescLeft"> </td><td class="mdescRight">Build an interval around a value. <a href="class_qwt_scale_engine.html#a9d1e0ce7074caf0bb868bd41d251c838">More...</a><br /></td></tr>
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<tr class="separator:a9d1e0ce7074caf0bb868bd41d251c838 inherit pro_methods_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
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Additional Inherited Members</h2></td></tr>
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<tr class="inherit_header pub_types_class_qwt_scale_engine"><td colspan="2" onclick="javascript:toggleInherit('pub_types_class_qwt_scale_engine')"><img src="closed.png" alt="-"/> Public Types inherited from <a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a></td></tr>
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<tr class="memitem:a7548418e0896d75eec164bfa2ba3ff5f inherit pub_types_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5f">Attribute</a> { <br />
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  <a class="el" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fa617f0da0b90080be49b79dbaaab191f8">NoAttribute</a> = 0x00
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, <a class="el" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fad29dea0ac58c4675ac009620b0857984">IncludeReference</a> = 0x01
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, <a class="el" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fab3931d404b68708d0c6eaf87ae744fc9">Symmetric</a> = 0x02
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, <a class="el" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fa2158d4b3596e7d4a00375821fc0d20c3">Floating</a> = 0x04
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, <br />
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  <a class="el" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5fa2f3985208684d394319320b8e67ea062">Inverted</a> = 0x08
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<br />
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}</td></tr>
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<tr class="separator:a7548418e0896d75eec164bfa2ba3ff5f inherit pub_types_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a4522bee6053c9be90b11586f4ceb3128 inherit pub_types_class_qwt_scale_engine"><td class="memItemLeft" align="right" valign="top">typedef QFlags< <a class="el" href="class_qwt_scale_engine.html#a7548418e0896d75eec164bfa2ba3ff5f">Attribute</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_engine.html#a4522bee6053c9be90b11586f4ceb3128">Attributes</a></td></tr>
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<tr class="separator:a4522bee6053c9be90b11586f4ceb3128 inherit pub_types_class_qwt_scale_engine"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>A scale engine for logarithmic scales. </p>
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<p>The step size is measured in <em>decades</em> and the major step size will be adjusted to fit the pattern <img class="formulaInl" alt="$\left\{ 1,2,3,5\right\} \cdot 10^{n}$" src="form_5.svg"/>, where n is a natural number including zero.</p>
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<dl class="section warning"><dt>Warning</dt><dd>the step size as well as the margins are measured in <em>decades</em>. </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8h_source.html#l00191">191</a> of file <a class="el" href="qwt__scale__engine_8h_source.html">qwt_scale_engine.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<a id="a68f89f870f918c2ecc56d8d2b0074a3a"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a68f89f870f918c2ecc56d8d2b0074a3a">◆ </a></span>QwtLogScaleEngine()</h2>
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<td class="memname">QwtLogScaleEngine::QwtLogScaleEngine </td>
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<td>(</td>
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<td class="paramtype">uint </td>
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<td class="paramname"><em>base</em> = <code>10</code></td><td>)</td>
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<td></td>
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</td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel">explicit</span></span> </td>
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</div><div class="memdoc">
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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">base</td><td>Base of the scale engine </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_scale_engine.html#afdabe4fd2a89b7cd5a21cdc9ac2269d6">setBase()</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8cpp_source.html#l00776">776</a> of file <a class="el" href="qwt__scale__engine_8cpp_source.html">qwt_scale_engine.cpp</a>.</p>
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</div>
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</div>
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<h2 class="groupheader">Member Function Documentation</h2>
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<a id="a758ce119c851b8dd1c77e7bfaaed235f"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a758ce119c851b8dd1c77e7bfaaed235f">◆ </a></span>align()</h2>
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> QwtLogScaleEngine::align </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td>
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<td class="paramname"><em>interval</em>, </td>
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<td class="paramkey"></td>
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<td>)</td>
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<td></td><td> const</td>
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</table>
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</td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel">protected</span></span> </td>
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<p>Align an interval to a step size. </p>
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<p>The limits of an interval are aligned that both are integer multiples of the step size.</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">interval</td><td>Interval </td></tr>
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<tr><td class="paramname">stepSize</td><td>Step size</td></tr>
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</table>
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<dl class="section return"><dt>Returns</dt><dd>Aligned interval </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8cpp_source.html#l01106">1106</a> of file <a class="el" href="qwt__scale__engine_8cpp_source.html">qwt_scale_engine.cpp</a>.</p>
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<a id="a6a6b2c27865daa73717bc4c40a2f4bbf"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a6a6b2c27865daa73717bc4c40a2f4bbf">◆ </a></span>autoScale()</h2>
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<td class="memname">void QwtLogScaleEngine::autoScale </td>
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<td>(</td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>maxNumSteps</em>, </td>
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<td class="paramtype">double & </td>
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<td class="paramtype">double & </td>
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<td class="paramkey"></td>
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<td class="paramtype">double & </td>
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<td class="paramname"><em>stepSize</em> </td>
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<td></td>
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<td>)</td>
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<td></td><td> const</td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel">override</span><span class="mlabel">virtual</span></span> </td>
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</div><div class="memdoc">
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<p>Align and divide an interval</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">maxNumSteps</td><td>Max. number of steps </td></tr>
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<tr><td class="paramname">x1</td><td>First limit of the interval (In/Out) </td></tr>
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<tr><td class="paramname">x2</td><td>Second limit of the interval (In/Out) </td></tr>
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<tr><td class="paramname">stepSize</td><td>Step size (Out)</td></tr>
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</table>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_scale_engine.html#acf02a88f6e778edbc9e005960f35b3b7">QwtScaleEngine::setAttribute()</a> </dd></dl>
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<p>Implements <a class="el" href="class_qwt_scale_engine.html#aa27323d6d9d5348bd253a61b45e4785b">QwtScaleEngine</a>.</p>
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<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8cpp_source.html#l00797">797</a> of file <a class="el" href="qwt__scale__engine_8cpp_source.html">qwt_scale_engine.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2f89c465872a5b5d241c2adf222fb235">◆ </a></span>buildMajorTicks()</h2>
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<td class="memname"><a class="el" href="class_q_list.html">QList</a>< double > QwtLogScaleEngine::buildMajorTicks </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td>
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<p>Calculate major ticks for an interval. </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">interval</td><td>Interval </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Calculated ticks </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8cpp_source.html#l00967">967</a> of file <a class="el" href="qwt__scale__engine_8cpp_source.html">qwt_scale_engine.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a367407a70e704cde1d76d5b5718d3a02">◆ </a></span>buildMinorTicks()</h2>
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<td class="memname">void QwtLogScaleEngine::buildMinorTicks </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="class_q_list.html">QList</a>< double > & </td>
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<p>Calculate minor/medium ticks for major ticks. </p>
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<tr><td class="paramname">majorTicks</td><td>Major ticks </td></tr>
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<tr><td class="paramname">stepSize</td><td>Step size </td></tr>
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<tr><td class="paramname">minorTicks</td><td>Array to be filled with the calculated minor ticks </td></tr>
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<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8cpp_source.html#l01002">1002</a> of file <a class="el" href="qwt__scale__engine_8cpp_source.html">qwt_scale_engine.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4b0b0c31df7b8be1fcc0f9d7194a947a">◆ </a></span>buildTicks()</h2>
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<td class="memname">void QwtLogScaleEngine::buildTicks </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td>
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<td class="paramname"><em>interval</em>, </td>
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<td class="paramtype">double </td>
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<td class="paramname"><em>stepSize</em>, </td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>maxMinorSteps</em>, </td>
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<td class="paramtype"><a class="el" href="class_q_list.html">QList</a>< double > </td>
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<td class="paramname"><em>ticks</em>[QwtScaleDiv::NTickTypes] </td>
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<td></td>
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<td>)</td>
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<td></td><td> const</td>
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<span class="mlabels"><span class="mlabel">protected</span></span> </td>
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<p>Calculate ticks for an interval. </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">interval</td><td>Interval </td></tr>
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<tr><td class="paramname">maxMinorSteps</td><td>Maximum number of minor steps </td></tr>
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<tr><td class="paramname">stepSize</td><td>Step size </td></tr>
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<tr><td class="paramname">ticks</td><td>Arrays to be filled with the calculated ticks</td></tr>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_log_scale_engine.html#a2f89c465872a5b5d241c2adf222fb235" title="Calculate major ticks for an interval.">buildMajorTicks()</a>, <a class="el" href="class_qwt_log_scale_engine.html#a367407a70e704cde1d76d5b5718d3a02" title="Calculate minor/medium ticks for major ticks.">buildMinorTicks</a> </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8cpp_source.html#l00940">940</a> of file <a class="el" href="qwt__scale__engine_8cpp_source.html">qwt_scale_engine.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a5a996c9538fc1c7f767bb75cbf2aae8b">◆ </a></span>divideScale()</h2>
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<td class="memname"><a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> QwtLogScaleEngine::divideScale </td>
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<td>(</td>
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<td class="paramtype">double </td>
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<td class="paramname"><em>x1</em>, </td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>maxMajorSteps</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">double </td>
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<td class="paramname"><em>stepSize</em> = <code>0.0</code> </td>
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<p>Calculate a scale division for an interval. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">x1</td><td>First interval limit </td></tr>
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<tr><td class="paramname">x2</td><td>Second interval limit </td></tr>
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<tr><td class="paramname">maxMajorSteps</td><td>Maximum for the number of major steps </td></tr>
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<tr><td class="paramname">maxMinorSteps</td><td>Maximum number of minor steps </td></tr>
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<tr><td class="paramname">stepSize</td><td>Step size. If stepSize == 0, the engine calculates one.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Calculated scale division </dd></dl>
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<p>Implements <a class="el" href="class_qwt_scale_engine.html#ab85442ced7cf3a39e5ad25f8cb80dea4">QwtScaleEngine</a>.</p>
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<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8cpp_source.html#l00879">879</a> of file <a class="el" href="qwt__scale__engine_8cpp_source.html">qwt_scale_engine.cpp</a>.</p>
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