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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Qwt User's Guide: QwtLinearColorMap Class Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.6 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li id="current"><a href="classes.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="classes.html"><span>Alphabetical List</span></a></li> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li> <li><a href="functions.html"><span>Class Members</span></a></li> </ul></div><h1>QwtLinearColorMap Class Reference</h1><!-- doxytag: class="QwtLinearColorMap" --><!-- doxytag: inherits="QwtColorMap" -->Inheritance diagram for QwtLinearColorMap:<p><center><img src="class_qwt_linear_color_map__inherit__graph.png" border="0" usemap="#_qwt_linear_color_map__inherit__map" alt="Inheritance graph"></center><map name="_qwt_linear_color_map__inherit__map"><area href="class_qwt_color_map.html" shape="rect" coords="24,8,128,32" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center>Collaboration diagram for QwtLinearColorMap:<p><center><img src="class_qwt_linear_color_map__coll__graph.png" border="0" usemap="#_qwt_linear_color_map__coll__map" alt="Collaboration graph"></center><map name="_qwt_linear_color_map__coll__map"><area href="class_qwt_color_map.html" shape="rect" coords="24,8,128,32" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="class_qwt_linear_color_map-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2><a class="el" href="class_qwt_linear_color_map.html">QwtLinearColorMap</a> builds a color map from color stops. <p>A color stop is a color at a specific position. The valid range for the positions is [0.0, 1.0]. When mapping a value into a color it is translated into this interval. If <a class="el" href="class_qwt_linear_color_map.html#9ec309df6ec88472a63b14ac2c692c96">mode()</a> == FixedColors the color is calculated from the next lower color stop. If <a class="el" href="class_qwt_linear_color_map.html#9ec309df6ec88472a63b14ac2c692c96">mode()</a> == ScaledColors the color is calculated by interpolating the colors of the adjacent stops. <p><p>Definition at line <a class="el" href="qwt__color__map_8h-source.html#l00111">111</a> of file <a class="el" href="qwt__color__map_8h-source.html">qwt_color_map.h</a>.<table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Types</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#c8c5f1991f533b1d25a9a0a0874b7d54">Mode</a> { <br> <b>FixedColors</b>, <br> <b>ScaledColors</b><br> }</td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#0ef6a29bb027017aad89a4c4a4b07019">QwtLinearColorMap</a> (<a class="el" href="class_qwt_color_map.html#9e5570790910fa3894887bca7dc5a670">QwtColorMap::Format</a>=QwtColorMap::RGB)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#e591cf441db15a021c25d0b58bfa7a5e">QwtLinearColorMap</a> (const QColor &from, const QColor &to, <a class="el" href="class_qwt_color_map.html#9e5570790910fa3894887bca7dc5a670">QwtColorMap::Format</a>=QwtColorMap::RGB)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#bf6693327112639be15c172458c0c653">QwtLinearColorMap</a> (const <a class="el" href="class_qwt_linear_color_map.html">QwtLinearColorMap</a> &)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#82caa759e44d439aa9866bd03e2e3696">~QwtLinearColorMap</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_qwt_linear_color_map.html">QwtLinearColorMap</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#331029567a42610143ec41b22e882143">operator=</a> (const <a class="el" href="class_qwt_linear_color_map.html">QwtLinearColorMap</a> &)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="class_qwt_color_map.html">QwtColorMap</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#ce66f2146c718e450878e164a727c7a8">copy</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#fca7397fb6d07d05bab83e83e274a9c2">setMode</a> (<a class="el" href="class_qwt_linear_color_map.html#c8c5f1991f533b1d25a9a0a0874b7d54">Mode</a>)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_qwt_linear_color_map.html#c8c5f1991f533b1d25a9a0a0874b7d54">Mode</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#9ec309df6ec88472a63b14ac2c692c96">mode</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#bfae35c30755c0bbd1447342055e9a13">setColorInterval</a> (const QColor &color1, const QColor &color2)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#a7162a034e882e752c15051439bb2c99">addColorStop</a> (double value, const QColor &)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">QwtArray< double > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#af8dce1941b5792146faa92db34d2592">colorStops</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">QColor </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#3ab5066b01409f58e4ad0425474b1530">color1</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">QColor </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#9fa696fff9ec599f0c305f73345ecab3">color2</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual QRgb </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#db056bd9487fde980a85da8ea5ec6188">rgb</a> (const <a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &, double value) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual unsigned char </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_linear_color_map.html#cdd4288a6187348cba916fc7dd1d750b">colorIndex</a> (const <a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &, double value) const </td></tr></table><hr><h2>Member Enumeration Documentation</h2><a class="anchor" name="c8c5f1991f533b1d25a9a0a0874b7d54"></a><!-- doxytag: member="QwtLinearColorMap::Mode" ref="c8c5f1991f533b1d25a9a0a0874b7d54" args="" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">enum <a class="el" href="class_qwt_linear_color_map.html#c8c5f1991f533b1d25a9a0a0874b7d54">QwtLinearColorMap::Mode</a> </td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Mode of color map <dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_linear_color_map.html#fca7397fb6d07d05bab83e83e274a9c2">setMode()</a>, <a class="el" href="class_qwt_linear_color_map.html#9ec309df6ec88472a63b14ac2c692c96">mode()</a> </dd></dl><p>Definition at line <a class="el" href="qwt__color__map_8h-source.html#l00118">118</a> of file <a class="el" href="qwt__color__map_8h-source.html">qwt_color_map.h</a>. </td> </tr></table><hr><h2>Constructor & Destructor Documentation</h2><a class="anchor" name="0ef6a29bb027017aad89a4c4a4b07019"></a><!-- doxytag: member="QwtLinearColorMap::QwtLinearColorMap" ref="0ef6a29bb027017aad89a4c4a4b07019" args="(QwtColorMap::Format=QwtColorMap::RGB)" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">QwtLinearColorMap::QwtLinearColorMap </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top"><a class="el" href="class_qwt_color_map.html#9e5570790910fa3894887bca7dc5a670">QwtColorMap::Format</a> </td> <td class="mdname1" valign="top" nowrap> <em>format</em> = <code>QwtColorMap::RGB</code> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Build a color map with two stops at 0.0 and 1.0. The color at 0.0 is Qt::blue, at 1.0 it is Qt::yellow.<p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>format</em> </td><td>Preferred format of the color map </td></tr> </table></dl><p>Definition at line <a class="el" href="qwt__color__map_8cpp-source.html#l00211">211</a> of file <a class="el" href="qwt__color__map_8cpp-source.html">qwt_color_map.cpp</a>.<p>References <a class="el" href="qwt__color__map_8cpp-source.html#l00301">setColorInterval()</a>.<p>Referenced by <a class="el" href="qwt__color__map_8cpp-source.html#l00260">copy()</a>. </td> </tr></table><a class="anchor" name="e591cf441db15a021c25d0b58bfa7a5e"></a><!-- doxytag: member="QwtLinearColorMap::QwtLinearColorMap" ref="e591cf441db15a021c25d0b58bfa7a5e" args="(const QColor &from, const QColor &to, QwtColorMap::Format=QwtColorMap::RGB)" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">QwtLinearColorMap::QwtLinearColorMap </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const QColor & </td> <td class="mdname" nowrap> <em>color1</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>const QColor & </td> <td class="mdname" nowrap> <em>color2</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap><a class="el" href="class_qwt_color_map.html#9e5570790910fa3894887bca7dc5a670">QwtColorMap::Format</a> </td> <td class="mdname" nowrap> <em>format</em> = <code>QwtColorMap::RGB</code></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Build a color map with two stops at 0.0 and 1.0.<p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>color1</em> </td><td>Color used for the minimum value of the value interval </td></tr> <tr><td valign="top"></td><td valign="top"><em>color2</em> </td><td>Color used for the maximum value of the value interval </td></tr> <tr><td valign="top"></td><td valign="top"><em>format</em> </td><td>Preferred format of the coor map </td></tr> </table></dl><p>Definition at line <a class="el" href="qwt__color__map_8cpp-source.html#l00235">235</a> of file <a class="el" href="qwt__color__map_8cpp-source.html">qwt_color_map.cpp</a>.<p>References <a class="el" href="qwt__color__map_8cpp-source.html#l00301">setColorInterval()</a>. </td> </tr></table><a class="anchor" name="bf6693327112639be15c172458c0c653"></a><!-- doxytag: member="QwtLinearColorMap::QwtLinearColorMap" ref="bf6693327112639be15c172458c0c653" args="(const QwtLinearColorMap &)" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">QwtLinearColorMap::QwtLinearColorMap </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const <a class="el" href="class_qwt_linear_color_map.html">QwtLinearColorMap</a> & </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Copy constructor. <p><p>Definition at line <a class="el" href="qwt__color__map_8cpp-source.html#l00221">221</a> of file <a class="el" href="qwt__color__map_8cpp-source.html">qwt_color_map.cpp</a>. </td>⌨️ 快捷键说明
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