Peter M. Groen / openbr

class_qwt_scale_arithmetic.html 9.27 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>Qwt User&#39;s Guide: QwtScaleArithmetic Class Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="doxygen.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<!-- Generated by Doxygen 1.7.3 -->
<div id="top">
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td style="padding-left: 0.5em;">
   <div id="projectname">Qwt User's Guide&#160;<span id="projectnumber">6.0.1</span></div>
  </td>
 </tr>
 </tbody>
</table>
</div>
  <div id="navrow1" class="tabs">
    <ul class="tablist">
      <li><a href="index.html"><span>Main&#160;Page</span></a></li>
      <li><a href="pages.html"><span>Related&#160;Pages</span></a></li>
      <li class="current"><a href="annotated.html"><span>Classes</span></a></li>
      <li><a href="files.html"><span>Files</span></a></li>
    </ul>
  </div>
  <div id="navrow2" class="tabs2">
    <ul class="tablist">
      <li><a href="annotated.html"><span>Class&#160;List</span></a></li>
      <li><a href="classes.html"><span>Class&#160;Index</span></a></li>
      <li><a href="inherits.html"><span>Class&#160;Hierarchy</span></a></li>
      <li><a href="functions.html"><span>Class&#160;Members</span></a></li>
    </ul>
  </div>
</div>
<div class="header">
  <div class="summary">
<a href="#pub-static-methods">Static Public Member Functions</a>  </div>
  <div class="headertitle">
<h1>QwtScaleArithmetic Class Reference</h1>  </div>
</div>
<div class="contents">
<!-- doxytag: class="QwtScaleArithmetic" -->
<p>Arithmetic including a tolerance.  
<a href="#_details">More...</a></p>

<p><code>#include &lt;<a class="el" href="qwt__scale__engine_8h_source.html">qwt_scale_engine.h</a>&gt;</code></p>

<p><a href="class_qwt_scale_arithmetic-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_arithmetic.html#a5768ab1c30f4fa8f02e3bb83f50fac02">ceil125</a> (double x)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_arithmetic.html#a86da4fc0928457d03201d8b520d7d816">ceilEps</a> (double value, double intervalSize)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_arithmetic.html#ae5f0415105b2a97cccb93f3da9ddaead">divideEps</a> (double interval, double steps)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_arithmetic.html#a0cf6b5993a700cf0f00175486bd57b5b">floor125</a> (double x)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_arithmetic.html#a924d97f2e5db236f43f4d65e430e09c1">floorEps</a> (double value, double intervalSize)</td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Arithmetic including a tolerance. </p>
</div><hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a5768ab1c30f4fa8f02e3bb83f50fac02"></a><!-- doxytag: member="QwtScaleArithmetic::ceil125" ref="a5768ab1c30f4fa8f02e3bb83f50fac02" args="(double x)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">double QwtScaleArithmetic::ceil125 </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td><code> [static]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">
<p>Find the smallest value out of {1,2,5}*10^n with an integer number n which is greater than or equal to x</p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Input value </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="a86da4fc0928457d03201d8b520d7d816"></a><!-- doxytag: member="QwtScaleArithmetic::ceilEps" ref="a86da4fc0928457d03201d8b520d7d816" args="(double value, double intervalSize)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">double QwtScaleArithmetic::ceilEps </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>value</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>intervalSize</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td><code> [static]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">
<p>Ceil a value, relative to an interval</p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">value</td><td>Value to ceil </td></tr>
    <tr><td class="paramname">intervalSize</td><td>Interval size</td></tr>
  </table>
  </dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_scale_arithmetic.html#a924d97f2e5db236f43f4d65e430e09c1">floorEps()</a> </dd></dl>

</div>
</div>
<a class="anchor" id="ae5f0415105b2a97cccb93f3da9ddaead"></a><!-- doxytag: member="QwtScaleArithmetic::divideEps" ref="ae5f0415105b2a97cccb93f3da9ddaead" args="(double interval, double steps)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">double QwtScaleArithmetic::divideEps </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>intervalSize</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>numSteps</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td><code> [static]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>Divide an interval into steps. </p>
<p><img class="formulaInl" alt="$stepSize = (intervalSize - intervalSize * 10e^{-6}) / numSteps$" src="form_3.png"/></p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">intervalSize</td><td>Interval size </td></tr>
    <tr><td class="paramname">numSteps</td><td>Number of steps </td></tr>
  </table>
  </dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>Step size </dd></dl>

</div>
</div>
<a class="anchor" id="a0cf6b5993a700cf0f00175486bd57b5b"></a><!-- doxytag: member="QwtScaleArithmetic::floor125" ref="a0cf6b5993a700cf0f00175486bd57b5b" args="(double x)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">double QwtScaleArithmetic::floor125 </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td><code> [static]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>Find the largest value out of {1,2,5}*10^n with an integer number n which is smaller than or equal to x. </p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>Input value </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="a924d97f2e5db236f43f4d65e430e09c1"></a><!-- doxytag: member="QwtScaleArithmetic::floorEps" ref="a924d97f2e5db236f43f4d65e430e09c1" args="(double value, double intervalSize)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">double QwtScaleArithmetic::floorEps </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>value</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>intervalSize</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td><code> [static]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">
<p>Floor a value, relative to an interval</p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">value</td><td>Value to floor </td></tr>
    <tr><td class="paramname">intervalSize</td><td>Interval size</td></tr>
  </table>
  </dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_scale_arithmetic.html#a924d97f2e5db236f43f4d65e430e09c1">floorEps()</a> </dd></dl>

</div>
</div>
</div>
<hr class="footer"/><address class="footer"><small>Generated by&#160;
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.3 </small></address>
</body>
</html>