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<h1>Quadratic2.cxx</h1><a href="Quadratic2_8cxx.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00012"></a>00012 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00013"></a>00013 <span class="preprocessor"></span><span class="preprocessor">#include "msdevstudio/MSconfig.h"</span>
<a name="l00014"></a>00014 <span class="preprocessor">#endif</span>
<a name="l00015"></a>00015 <span class="preprocessor"></span>
<a name="l00016"></a>00016 <span class="preprocessor">#include "<a class="code" href="Quadratic2_8h.html" title="Quadratic2 class interface.">Quadratic2.h</a>"</span>
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="preprocessor">#include "<a class="code" href="FunctionHelper_8h.html" title="FunctionHelper class interface.">FunctionHelper.h</a>"</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#include <cassert></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include <cmath></span>
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="preprocessor">#ifdef ITERATOR_MEMBER_DEFECT</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span><span class="keyword">using namespace </span>std;
<a name="l00025"></a>00025 <span class="preprocessor">#else</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span><span class="keyword">using</span> std::vector;
<a name="l00027"></a>00027 <span class="preprocessor">#endif</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span>
<a name="l00029"></a>00029 <span class="keyword">namespace </span>hippodraw {
<a name="l00030"></a>00030
<a name="l00031"></a><a class="code" href="classhippodraw_1_1Quadratic2.html#ac5f5031caf76e1ca0235e9911fab5e74">00031</a> <a class="code" href="classhippodraw_1_1Quadratic2.html#ac5f5031caf76e1ca0235e9911fab5e74" title="The default constructor.">Quadratic2::Quadratic2</a> ( )
<a name="l00032"></a>00032 {
<a name="l00033"></a>00033 <a class="code" href="classhippodraw_1_1Quadratic2.html#a25a40b6614565f755233080a384c35f1" title="Initializes the function and parameters names.">initialize</a> ();
<a name="l00034"></a>00034 }
<a name="l00035"></a>00035
<a name="l00036"></a><a class="code" href="classhippodraw_1_1Quadratic2.html#a54de87fdd4b5b52bd32e0c99ec13d59f">00036</a> <a class="code" href="classhippodraw_1_1Quadratic2.html#ac5f5031caf76e1ca0235e9911fab5e74" title="The default constructor.">Quadratic2::Quadratic2</a> ( <span class="keywordtype">double</span> yscale, <span class="keywordtype">double</span> y0, <span class="keywordtype">double</span> x0 )
<a name="l00037"></a>00037 {
<a name="l00038"></a>00038 <a class="code" href="classhippodraw_1_1Quadratic2.html#a25a40b6614565f755233080a384c35f1" title="Initializes the function and parameters names.">initialize</a> ();
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[0] = yscale;
<a name="l00041"></a>00041 <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[1] = y0;
<a name="l00042"></a>00042 <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[2] = x0;
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044
<a name="l00045"></a><a class="code" href="classhippodraw_1_1Quadratic2.html#a25a40b6614565f755233080a384c35f1">00045</a> <span class="keywordtype">void</span> <a class="code" href="classhippodraw_1_1Quadratic2.html#a25a40b6614565f755233080a384c35f1" title="Initializes the function and parameters names.">Quadratic2::initialize</a> ()
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047 <a class="code" href="classhippodraw_1_1FunctionBase.html#adb41893ba19e889e56c559f25fc1a68a" title="The name of the function.">m_name</a> = <span class="stringliteral">"yscale*(x - x0)**2 + y0"</span>;
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <a class="code" href="classhippodraw_1_1FunctionBase.html#a96bf64e362e48f2ad4ecd76c32e4bc54" title="The names of the function parameters.">m_parm_names</a>.push_back ( <span class="stringliteral">"yscale"</span> );
<a name="l00050"></a>00050 <a class="code" href="classhippodraw_1_1FunctionBase.html#a96bf64e362e48f2ad4ecd76c32e4bc54" title="The names of the function parameters.">m_parm_names</a>.push_back ( <span class="stringliteral">"y0"</span> );
<a name="l00051"></a>00051 <a class="code" href="classhippodraw_1_1FunctionBase.html#a96bf64e362e48f2ad4ecd76c32e4bc54" title="The names of the function parameters.">m_parm_names</a>.push_back ( <span class="stringliteral">"x0"</span> );
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <a class="code" href="classhippodraw_1_1FunctionBase.html#a0fc3d585aa53859602ac79c9c421f2a9" title="Re-sizes the appropriate vectors maintained in this base class.">resize</a> ();
<a name="l00054"></a>00054 }
<a name="l00055"></a>00055
<a name="l00056"></a><a class="code" href="classhippodraw_1_1Quadratic2.html#a5e4b003c4faa8b7729e762445c7578d8">00056</a> <a class="code" href="classhippodraw_1_1FunctionBase.html" title="A function that can be added to a DataRep and used in a fitter.">FunctionBase</a> * <a class="code" href="classhippodraw_1_1Quadratic2.html#a5e4b003c4faa8b7729e762445c7578d8" title="Creates a new function object by copying an existing one.">Quadratic2::clone</a> ()<span class="keyword"> const</span>
<a name="l00057"></a>00057 <span class="keyword"></span>{
<a name="l00058"></a>00058 <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classhippodraw_1_1Quadratic2.html#ac5f5031caf76e1ca0235e9911fab5e74" title="The default constructor.">Quadratic2</a> ( *<span class="keyword">this</span> );
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060
<a name="l00061"></a><a class="code" href="classhippodraw_1_1Quadratic2.html#a3a71b677f013fdbc07bdf5dd65ee5f27">00061</a> <span class="keywordtype">double</span> <a class="code" href="classhippodraw_1_1Quadratic2.html#a3a71b677f013fdbc07bdf5dd65ee5f27" title="The function call operator.">Quadratic2::operator () </a>( <span class="keywordtype">double</span> x )<span class="keyword"> const</span>
<a name="l00062"></a>00062 <span class="keyword"></span>{
<a name="l00063"></a>00063 <span class="keywordflow">return</span> <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[0] * ( x - <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[2] ) * ( x - <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[2] ) + <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[1];
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="comment">/* virtual */</span>
<a name="l00067"></a>00067 <span class="keywordtype">void</span>
<a name="l00068"></a>00068 <a class="code" href="classhippodraw_1_1Quadratic2.html#ac89ece7f0010b352e8d897f0a352f811" title="Sets the FunctionHelper so that the function can calculate a reasonable set of initial...">Quadratic2::</a>
<a name="l00069"></a><a class="code" href="classhippodraw_1_1Quadratic2.html#ac89ece7f0010b352e8d897f0a352f811">00069</a> <a class="code" href="classhippodraw_1_1Quadratic2.html#ac89ece7f0010b352e8d897f0a352f811" title="Sets the FunctionHelper so that the function can calculate a reasonable set of initial...">initialParameters</a> ( <span class="keyword">const</span> <a class="code" href="classhippodraw_1_1FunctionHelper.html" title="An abstract base class to help FunctionBase objects perform some operations.">FunctionHelper</a> * helper )
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071 <span class="keywordtype">double</span> min_x = helper-><a class="code" href="classhippodraw_1_1FunctionHelper.html#aae8e27d24b633cfe806a30a6533e8581" title="Returns the smallest coordinate value along the X axis in the data set.">minCoord</a> ();
<a name="l00072"></a>00072 <span class="keywordtype">double</span> max_x = helper-><a class="code" href="classhippodraw_1_1FunctionHelper.html#a719f9e98d819c68e7588583cf65a0ad5" title="Returns the largest coordinate value along the X axis in the data set.">maxCoord</a> ();
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="keywordtype">double</span> min_y = helper-><a class="code" href="classhippodraw_1_1FunctionHelper.html#abad9bd56009500b7eab09eb640e3e52d" title="Returns the smallest value in the data set.">minValue</a> ();
<a name="l00075"></a>00075 <span class="comment">// double max_y = helper->maxValue ();</span>
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[0] = 1.;
<a name="l00078"></a>00078 <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[1] = min_y;
<a name="l00079"></a>00079 <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[2] = std::sqrt(std::fabs(min_x*max_x));
<a name="l00080"></a>00080 }
<a name="l00081"></a>00081
<a name="l00082"></a><a class="code" href="classhippodraw_1_1Quadratic2.html#a8617a1aa7536e4cb61f2a4ec29a39f36">00082</a> <span class="keywordtype">double</span> <a class="code" href="classhippodraw_1_1Quadratic2.html#a8617a1aa7536e4cb61f2a4ec29a39f36" title="Returns the function&#39;s derivative at the coordinate value x with respect to the...">Quadratic2::derivByParm</a> ( <span class="keywordtype">int</span> i, <span class="keywordtype">double</span> x )<span class="keyword"> const</span>
<a name="l00083"></a>00083 <span class="keyword"></span>{
<a name="l00084"></a>00084 <span class="keywordflow">switch</span> ( i ) {
<a name="l00085"></a>00085 <span class="keywordflow">case</span> 0 :
<a name="l00086"></a>00086 <span class="keywordflow">return</span> (x - <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[2]) * (x - <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[2]);
<a name="l00087"></a>00087 <span class="keywordflow">break</span>;
<a name="l00088"></a>00088
<a name="l00089"></a>00089 <span class="keywordflow">case</span> 1 :
<a name="l00090"></a>00090 <span class="keywordflow">return</span> 1.;
<a name="l00091"></a>00091 <span class="keywordflow">break</span>;
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="keywordflow">case</span> 2 :
<a name="l00094"></a>00094 <span class="keywordflow">return</span> -2.*<a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[0]*(x - <a class="code" href="classhippodraw_1_1FunctionBase.html#aa892dcf9755ccd651b666f353b723c34" title="The parameter values.">m_parms</a>[2]);
<a name="l00095"></a>00095 <span class="keywordflow">break</span>;
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keywordflow">default</span> :
<a name="l00098"></a>00098 assert (<span class="keyword">false</span> );
<a name="l00099"></a>00099 <span class="keywordflow">break</span>;
<a name="l00100"></a>00100 }
<a name="l00101"></a>00101 <span class="keywordflow">return</span> 0.0;
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103
<a name="l00104"></a>00104 } <span class="comment">// namespace hippodraw</span>
<a name="l00105"></a>00105
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