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<a href="_geocentric_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// CLASSIFICATION: UNCLASSIFIED</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">/***************************************************************************/</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">/* RSC IDENTIFIER: GEOCENTRIC</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * ABSTRACT</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * This component provides conversions between Geodetic coordinates (latitude,</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * longitude in radians and height in meters) and Geocentric coordinates</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * (X, Y, Z) in meters.</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * ERROR HANDLING</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * This component checks parameters for valid values. If an invalid value</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * is found, the error code is combined with the current error code using </span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * the bitwise or. This combining allows multiple error codes to be</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * returned. The possible error codes are:</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * GEOCENT_NO_ERROR : No errors occurred in function</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * GEOCENT_LAT_ERROR : Latitude out of valid range</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * (-90 to 90 degrees)</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * GEOCENT_LON_ERROR : Longitude out of valid range</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * (-180 to 360 degrees)</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * GEOCENT_A_ERROR : Semi-major axis less than or equal to zero</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * GEOCENT_INV_F_ERROR : Inverse flattening outside of valid range</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * (250 to 350)</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * REUSE NOTES</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * GEOCENTRIC is intended for reuse by any application that performs</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * coordinate conversions between geodetic coordinates and geocentric</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * coordinates.</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> * REFERENCES</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * An Improved Algorithm for Geocentric to Geodetic Coordinate Conversion,</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * Ralph Toms, February 1996 UCRL-JC-123138.</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * Further information on GEOCENTRIC can be found in the Reuse Manual.</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * GEOCENTRIC originated from : U.S. Army Topographic Engineering Center</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * Geospatial Information Division</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * 7701 Telegraph Road</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * Alexandria, VA 22310-3864</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * LICENSES</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> * None apply to this component.</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> * RESTRICTIONS</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> * GEOCENTRIC has no restrictions.</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * ENVIRONMENT</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> * GEOCENTRIC was tested and certified in the following environments:</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * 1. Solaris 2.5 with GCC version 2.8.1</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> * 2. Windows 95 with MS Visual C++ version 6</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> * MODIFICATIONS</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> * Date Description</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> * ---- -----------</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> * 25-02-97 Original Code</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> * 3-02-07 Original C++ Code</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> * 01/24/11 I. Krinsky BAEts28121 </span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> * Terrain Service rearchitecture</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment">/***************************************************************************/</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> * INCLUDES</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor">#include <math.h></span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor">#include <float.h></span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#include <stdlib.h></span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor">#include "<a class="code" href="_geocentric_8h.html">Geocentric.h</a>"</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#include "<a class="code" href="_cartesian_coordinates_8h.html">CartesianCoordinates.h</a>"</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor">#include "<a class="code" href="_geodetic_coordinates_8h.html">GeodeticCoordinates.h</a>"</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#include "<a class="code" href="_coordinate_conversion_exception_8h.html">CoordinateConversionException.h</a>"</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#include "<a class="code" href="_error_messages_8h.html">ErrorMessages.h</a>"</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> * math.h - is needed for calls to sin, cos, tan and sqrt.</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> * Geocentric.h - is needed for Error codes and prototype error checking.</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"> * CartesianCoordinates.h - defines cartesian coordinates</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"> * GeodeticCoordinates.h - defines geodetic coordinates</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment"> * CoordinateConversionException.h - Exception handler</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"> * ErrorMessages.h - Contains exception messages</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">using namespace </span>MSP::CCS;</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment">/***************************************************************************/</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment">/* DEFINES </span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a name="l00106"></a><span class="lineno"><a class="code" href="_geocentric_8cpp.html#a952eac791b596a61bba0a133a3bb439f"> 106</a></span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="_m_g_r_s_8cpp.html#a598a3330b3c21701223ee0ca14316eca">PI</a> = 3.14159265358979323e0;</div>
<div class="line"><a name="l00107"></a><span class="lineno"><a class="code" href="_geocentric_8cpp.html#aa3c1d8e4403d757bf419703c040db87d"> 107</a></span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="_m_g_r_s_8cpp.html#a27d2bea15134ae7c7f7a2d11379bde53">PI_OVER_2</a> = (<a class="code" href="_m_g_r_s_8cpp.html#a598a3330b3c21701223ee0ca14316eca">PI</a> / 2.0e0);</div>
<div class="line"><a name="l00108"></a><span class="lineno"><a class="code" href="_geocentric_8cpp.html#a40f27f11eb75e3584b13a39ca30e6c91"> 108</a></span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="_m_g_r_s_8cpp.html#aa93f0eb578d23995850d61f7d61c55c1">FALSE</a> = 0;</div>
<div class="line"><a name="l00109"></a><span class="lineno"><a class="code" href="_geocentric_8cpp.html#a71e9226a899d0cf9777bd19369f101df"> 109</a></span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="_m_g_r_s_8cpp.html#aa8cecfc5c5c054d2875c03e77b7be15d">TRUE</a> = 1;</div>
<div class="line"><a name="l00110"></a><span class="lineno"><a class="code" href="_geocentric_8cpp.html#a1da7ed501e37c25869ddd7dd2f24db28"> 110</a></span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="_geocentric_8cpp.html#a1da7ed501e37c25869ddd7dd2f24db28">COS_67P5</a> = 0.38268343236508977; <span class="comment">/* cosine of 67.5 degrees */</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"><a class="code" href="_geocentric_8cpp.html#aacc16dff6cfcd8d5716207ab14e4c563"> 111</a></span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="_geocentric_8cpp.html#aacc16dff6cfcd8d5716207ab14e4c563">AD_C</a> = 1.0026000; <span class="comment">/* Toms region 1 constant */</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment">/************************************************************************/</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment">/* FUNCTIONS </span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a name="l00119"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#a89744f475c8c048b9a88e78ec73c4fbf"> 119</a></span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#a89744f475c8c048b9a88e78ec73c4fbf">Geocentric::Geocentric</a>(</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">double</span> ellipsoidSemiMajorAxis,</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordtype">double</span> ellipsoidFlattening ) :</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html">CoordinateSystem</a>(),</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  Geocent_e2( 0.0066943799901413800 ),</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  Geocent_ep2( 0.00673949675658690300 )</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> {</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> * The constructor receives the ellipsoid parameters</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"> * as inputs and sets the corresponding state variables.</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment"> * ellipsoidSemiMajorAxis : Semi-major axis of ellipsoid, in meters. (input)</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"> * ellipsoidFlattening : Flattening of ellipsoid. (input)</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordtype">double</span> inv_f = 1 / ellipsoidFlattening;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">if</span> (ellipsoidSemiMajorAxis <= 0.0)</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">throw</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_conversion_exception.html">CoordinateConversionException</a>( <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_error_messages.html#a75f494a85ff1b96b4ada5511f3bcc914">ErrorMessages:: semiMajorAxis</a> );</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">if</span> ((inv_f < 250) || (inv_f > 350))</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  { <span class="comment">/* Inverse flattening must be between 250 and 350 */</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">throw</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_conversion_exception.html">CoordinateConversionException</a>( <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_error_messages.html#ac376fe1588b8d462711455ba1ff73fb0">ErrorMessages::ellipsoidFlattening</a> );</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  }</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#ab4b25504df8abc3fb23b5f03eaf6c14e">semiMajorAxis</a> = ellipsoidSemiMajorAxis;</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#a103abc45b36f0bc52bd992f2d19bbfc6">flattening</a> = ellipsoidFlattening;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  Geocent_e2 = 2 * <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#a103abc45b36f0bc52bd992f2d19bbfc6">flattening</a> - <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#a103abc45b36f0bc52bd992f2d19bbfc6">flattening</a> * <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#a103abc45b36f0bc52bd992f2d19bbfc6">flattening</a>;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  Geocent_ep2 = (1 / (1 - Geocent_e2)) - 1;</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// Need to determine algorithm to use</span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  Geocent_algorithm = UNDEFINED;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> }</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a name="l00154"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#aae43f48ac2b385da808b63bd579ad8a1"> 154</a></span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#a89744f475c8c048b9a88e78ec73c4fbf">Geocentric::Geocentric</a>( <span class="keyword">const</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html">Geocentric</a> &g )</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> {</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#ab4b25504df8abc3fb23b5f03eaf6c14e">semiMajorAxis</a> = g.<a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#ab4b25504df8abc3fb23b5f03eaf6c14e">semiMajorAxis</a>;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#a103abc45b36f0bc52bd992f2d19bbfc6">flattening</a> = g.<a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#a103abc45b36f0bc52bd992f2d19bbfc6">flattening</a>;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  Geocent_e2 = g.Geocent_e2;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  Geocent_ep2 = g.Geocent_ep2;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> }</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div>
<div class="line"><a name="l00163"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#a97276ce567bafb6389aff7833371815e"> 163</a></span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#a97276ce567bafb6389aff7833371815e">Geocentric::~Geocentric</a>()</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> {</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> }</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div>
<div class="line"><a name="l00168"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#a10b4999f5b6b06729d41612c56245a94"> 168</a></span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html">Geocentric</a>& <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#a10b4999f5b6b06729d41612c56245a94">Geocentric::operator=</a>( <span class="keyword">const</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html">Geocentric</a> &g )</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> {</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">if</span>( <span class="keyword">this</span> != &g )</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  {</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#ab4b25504df8abc3fb23b5f03eaf6c14e">semiMajorAxis</a> = g.<a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#ab4b25504df8abc3fb23b5f03eaf6c14e">semiMajorAxis</a>;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#a103abc45b36f0bc52bd992f2d19bbfc6">flattening</a> = g.<a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#a103abc45b36f0bc52bd992f2d19bbfc6">flattening</a>;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  Geocent_e2 = g.Geocent_e2;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  Geocent_ep2 = g.Geocent_ep2;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> }</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div>
<div class="line"><a name="l00182"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#a6e2bbc4296ca15c2aad19f4ed3dab28d"> 182</a></span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_cartesian_coordinates.html">MSP::CCS::CartesianCoordinates</a>* <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#a6e2bbc4296ca15c2aad19f4ed3dab28d">Geocentric::convertFromGeodetic</a>(</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">const</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geodetic_coordinates.html">MSP::CCS::GeodeticCoordinates</a>* geodeticCoordinates )</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> {</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment"> * The function convertFromGeodetic converts geodetic coordinates</span></div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment"> * (latitude, longitude, and height) to geocentric coordinates (X, Y, Z),</span></div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"> * according to the current ellipsoid parameters.</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment"> * longitude : Geodetic longitude in radians (input)</span></div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment"> * latitude : Geodetic latitude in radians (input)</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment"> * height : Geodetic height, in meters (input)</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment"> * X : Calculated Geocentric X coordinate, in meters (output)</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment"> * Y : Calculated Geocentric Y coordinate, in meters (output)</span></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment"> * Z : Calculated Geocentric Z coordinate, in meters (output)</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordtype">double</span> Rn; <span class="comment">/* Earth radius at location */</span></div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordtype">double</span> Sin_Lat; <span class="comment">/* sin(Latitude) */</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordtype">double</span> Sin2_Lat; <span class="comment">/* Square of sin(Latitude) */</span></div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordtype">double</span> Cos_Lat; <span class="comment">/* cos(Latitude) */</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordtype">double</span> longitude = geodeticCoordinates-><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geodetic_coordinates.html#a81b352849684e9910b4001be3fec1b0d">longitude</a>();</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordtype">double</span> latitude = geodeticCoordinates-><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geodetic_coordinates.html#a4214a0369f1e642e1a446f35b7151108">latitude</a>();</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">double</span> height = geodeticCoordinates-><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geodetic_coordinates.html#a8c7b9695c0c32625e18fa8604411cea5">height</a>();</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">if</span> ((latitude < -<a class="code" href="_m_g_r_s_8cpp.html#a27d2bea15134ae7c7f7a2d11379bde53">PI_OVER_2</a>) || (latitude > <a class="code" href="_m_g_r_s_8cpp.html#a27d2bea15134ae7c7f7a2d11379bde53">PI_OVER_2</a>))</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  { <span class="comment">/* Latitude out of range */</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">throw</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_conversion_exception.html">CoordinateConversionException</a>( <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_error_messages.html#a816b9dcb83273fbc1ba1f3c215f26329">ErrorMessages::latitude</a> );</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  }</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">if</span> ((longitude < -<a class="code" href="_m_g_r_s_8cpp.html#a598a3330b3c21701223ee0ca14316eca">PI</a>) || (longitude > (2*<a class="code" href="_m_g_r_s_8cpp.html#a598a3330b3c21701223ee0ca14316eca">PI</a>)))</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  { <span class="comment">/* Longitude out of range */</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">throw</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_conversion_exception.html">CoordinateConversionException</a>( <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_error_messages.html#aca84764ebfd6a968bae4726c33c4c20b">ErrorMessages::longitude</a> );</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">if</span> (longitude > <a class="code" href="_m_g_r_s_8cpp.html#a598a3330b3c21701223ee0ca14316eca">PI</a>)</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  longitude -= (2*<a class="code" href="_m_g_r_s_8cpp.html#a598a3330b3c21701223ee0ca14316eca">PI</a>);</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  Sin_Lat = sin(latitude);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  Cos_Lat = cos(latitude);</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  Sin2_Lat = Sin_Lat * Sin_Lat;</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  Rn = <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#ab4b25504df8abc3fb23b5f03eaf6c14e">semiMajorAxis</a> / (sqrt(1.0e0 - Geocent_e2 * Sin2_Lat));</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordtype">double</span> X = (Rn + height) * Cos_Lat * cos(longitude);</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordtype">double</span> Y = (Rn + height) * Cos_Lat * sin(longitude);</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordtype">double</span> Z = ((Rn * (1 - Geocent_e2)) + height) * Sin_Lat;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_cartesian_coordinates.html">CartesianCoordinates</a>( <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_type.html#a418b669819e988d0cb43c506beffd8eba00b1892c45bbff2e5394a132fbf31f8d">CoordinateType::geocentric</a>, X, Y, Z );</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> }</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div>
<div class="line"><a name="l00231"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#a757fdb7d830269dea1496488ef90fadc"> 231</a></span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geodetic_coordinates.html">MSP::CCS::GeodeticCoordinates</a>* <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geocentric.html#a757fdb7d830269dea1496488ef90fadc">Geocentric::convertToGeodetic</a>(</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_cartesian_coordinates.html">MSP::CCS::CartesianCoordinates</a>* cartesianCoordinates )</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> {</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment"> * The function convertToGeodetic converts geocentric</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment"> * coordinates (X, Y, Z) to geodetic coordinates (latitude, longitude, </span></div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment"> * and height), according to the current ellipsoid parameters.</span></div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment"> * X : Geocentric X coordinate, in meters. (input)</span></div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment"> * Y : Geocentric Y coordinate, in meters. (input)</span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment"> * Z : Geocentric Z coordinate, in meters. (input)</span></div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment"> * longitude : Calculated longitude value in radians. (output)</span></div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment"> * latitude : Calculated latitude value in radians. (output)</span></div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment"> * height : Calculated height value, in meters. (output)</span></div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment"> * The method used here is derived from 'An Improved Algorithm for</span></div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="comment"> * Geocentric to Geodetic Coordinate Conversion', by Ralph Toms, Feb 1996</span></div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment">/* Note: Variable names follow the notation used in Toms, Feb 1996 */</span></div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordtype">double</span> X = cartesianCoordinates-><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_cartesian_coordinates.html#a0c0ae189697debc095964641d6333da9">x</a>();</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordtype">double</span> Y = cartesianCoordinates-><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_cartesian_coordinates.html#a0ac87ea8f66ae54ae3618c46c1b4e917">y</a>();</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordtype">double</span> Z = cartesianCoordinates-><a class="code" href="class_m_s_p_1_1_c_c_s_1_1_cartesian_coordinates.html#af6b273683044eb9c7cc8c47ac2524524">z</a>();</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordtype">double</span> latitude, longitude, height;</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">if</span>( Geocent_algorithm == UNDEFINED )</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  {</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  Geocent_algorithm = ITERATIVE;</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordtype">char</span> *geotransConv = getenv( <span class="stringliteral">"MSPCCS_USE_LEGACY_GEOTRANS"</span> );</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">if</span>( geotransConv != NULL )</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  {</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  Geocent_algorithm = GEOTRANS;</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  }</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  }</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> </div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordflow">if</span>( Geocent_algorithm == ITERATIVE )</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  {</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  geocentricToGeodetic( X, Y, Z, latitude, longitude, height );</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  }</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  {</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keywordtype">double</span> W; <span class="comment">/* distance from Z axis */</span></div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordtype">double</span> W2; <span class="comment">/* square of distance from Z axis */</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordtype">double</span> T0; <span class="comment">/* initial estimate of vertical component */</span></div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordtype">double</span> T1; <span class="comment">/* corrected estimate of vertical component */</span></div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keywordtype">double</span> S0; <span class="comment">/* initial estimate of horizontal component */</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordtype">double</span> S1; <span class="comment">/* corrected estimate of horizontal component */</span></div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordtype">double</span> Sin_B0; <span class="comment">/* sin(B0), B0 is estimate of Bowring aux variable */</span></div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordtype">double</span> Sin3_B0; <span class="comment">/* cube of sin(B0) */</span></div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordtype">double</span> Cos_B0; <span class="comment">/* cos(B0) */</span></div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordtype">double</span> Sin_p1; <span class="comment">/* sin(phi1), phi1 is estimated latitude */</span></div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keywordtype">double</span> Cos_p1; <span class="comment">/* cos(phi1) */</span></div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordtype">double</span> Rn; <span class="comment">/* Earth radius at location */</span></div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordtype">double</span> Sum; <span class="comment">/* numerator of cos(phi1) */</span></div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordtype">int</span> At_Pole; <span class="comment">/* indicates location is in polar region */</span></div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordtype">double</span> Geocent_b = <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#ab4b25504df8abc3fb23b5f03eaf6c14e">semiMajorAxis</a> * (1 - <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#a103abc45b36f0bc52bd992f2d19bbfc6">flattening</a>); <span class="comment">/* Semi-minor axis of ellipsoid, in meters */</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  At_Pole = <a class="code" href="_m_g_r_s_8cpp.html#aa93f0eb578d23995850d61f7d61c55c1">FALSE</a>;</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">if</span> (X != 0.0)</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  {</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  longitude = atan2(Y,X);</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  }</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  {</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">if</span> (Y > 0)</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  {</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  longitude = <a class="code" href="_m_g_r_s_8cpp.html#a27d2bea15134ae7c7f7a2d11379bde53">PI_OVER_2</a>;</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  }</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (Y < 0)</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  {</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  longitude = -<a class="code" href="_m_g_r_s_8cpp.html#a27d2bea15134ae7c7f7a2d11379bde53">PI_OVER_2</a>;</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  }</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  {</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  At_Pole = <a class="code" href="_m_g_r_s_8cpp.html#aa8cecfc5c5c054d2875c03e77b7be15d">TRUE</a>;</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  longitude = 0.0;</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">if</span> (Z > 0.0)</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  { <span class="comment">/* north pole */</span></div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  latitude = <a class="code" href="_m_g_r_s_8cpp.html#a27d2bea15134ae7c7f7a2d11379bde53">PI_OVER_2</a>;</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  }</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (Z < 0.0)</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  { <span class="comment">/* south pole */</span></div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  latitude = -<a class="code" href="_m_g_r_s_8cpp.html#a27d2bea15134ae7c7f7a2d11379bde53">PI_OVER_2</a>;</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  }</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  { <span class="comment">/* center of earth */</span></div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  latitude = <a class="code" href="_m_g_r_s_8cpp.html#a27d2bea15134ae7c7f7a2d11379bde53">PI_OVER_2</a>;</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  height = -Geocent_b;</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geodetic_coordinates.html">GeodeticCoordinates</a>(</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_type.html#a418b669819e988d0cb43c506beffd8eba49202f41636b7629fc9431e8d1b448d4">CoordinateType::geodetic</a>, longitude, latitude, height );</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  } </div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  }</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  }</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  W2 = X*X + Y*Y;</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  W = sqrt(W2);</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  T0 = Z * <a class="code" href="_geocentric_8cpp.html#aacc16dff6cfcd8d5716207ab14e4c563">AD_C</a>;</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  S0 = sqrt(T0 * T0 + W2);</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  Sin_B0 = T0 / S0;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  Cos_B0 = W / S0;</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  Sin3_B0 = Sin_B0 * Sin_B0 * Sin_B0;</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  T1 = Z + Geocent_b * Geocent_ep2 * Sin3_B0;</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  Sum = W - <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#ab4b25504df8abc3fb23b5f03eaf6c14e">semiMajorAxis</a> * Geocent_e2 * Cos_B0 * Cos_B0 * Cos_B0;</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  S1 = sqrt(T1*T1 + Sum * Sum);</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  Sin_p1 = T1 / S1;</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  Cos_p1 = Sum / S1;</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  Rn = <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#ab4b25504df8abc3fb23b5f03eaf6c14e">semiMajorAxis</a> / sqrt(1.0 - Geocent_e2 * Sin_p1 * Sin_p1);</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keywordflow">if</span> (Cos_p1 >= <a class="code" href="_geocentric_8cpp.html#a1da7ed501e37c25869ddd7dd2f24db28">COS_67P5</a>)</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  {</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  height = W / Cos_p1 - Rn;</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  }</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (Cos_p1 <= -<a class="code" href="_geocentric_8cpp.html#a1da7ed501e37c25869ddd7dd2f24db28">COS_67P5</a>)</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  {</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  height = W / -Cos_p1 - Rn;</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  }</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  {</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  height = Z / Sin_p1 + Rn * (Geocent_e2 - 1.0);</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  }</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">if</span> (At_Pole == <a class="code" href="_m_g_r_s_8cpp.html#aa93f0eb578d23995850d61f7d61c55c1">FALSE</a>)</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  {</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  latitude = atan(Sin_p1 / Cos_p1);</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  }</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  }</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span> </div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_geodetic_coordinates.html">GeodeticCoordinates</a>(</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_type.html#a418b669819e988d0cb43c506beffd8eba49202f41636b7629fc9431e8d1b448d4">CoordinateType::geodetic</a>, longitude, latitude, height );</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> }</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> </div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="keywordtype">void</span> Geocentric::geocentricToGeodetic(</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> x,</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> y,</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> z,</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordtype">double</span> &lat,</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordtype">double</span> &lon,</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordtype">double</span> &ht )</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> {</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordtype">double</span> equatorial_radius = <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_system.html#ab4b25504df8abc3fb23b5f03eaf6c14e">semiMajorAxis</a>;</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordtype">double</span> eccentricity_squared = Geocent_e2;</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> </div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordtype">double</span> rho, c, s, ct2, e1, e2a;</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> </div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  e1 = 1.0 - eccentricity_squared;</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  e2a = eccentricity_squared * equatorial_radius;</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> </div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  rho = sqrt(x * x + y * y);</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordflow">if</span> (z == 0.0)</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  {</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordflow">if</span> (rho < e2a)</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  {</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  ct2 = rho*rho*e1/(e2a*e2a-rho*rho);</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  c = sqrt(ct2 / (1.0 + ct2));</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  s = sqrt(1.0 / (1.0 + ct2));</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  }</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  {</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  c = 1.0;</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  s = 0.0;</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  }</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> </div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  lat = 0.0;</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  }</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  {</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keywordtype">double</span> ct, new_ct, zabs;</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keywordtype">double</span> f, new_f, df_dct, e2;</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> </div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  zabs = fabs(z);</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  new_ct = rho / zabs;</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  new_f = DBL_MAX;</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  </div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordflow">do</span></div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  {</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  ct = new_ct;</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  f = new_f;</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  </div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  e2 = sqrt(e1 + ct*ct);</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> </div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  new_f = rho - zabs*ct - e2a*ct/e2;</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> </div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordflow">if</span> (new_f == 0.0) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> </div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  df_dct = -zabs - (e2a*e1)/(e2*e2*e2);</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> </div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  new_ct = ct - new_f / df_dct;</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> </div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">if</span> (new_ct < 0.0) new_ct = 0.0;</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  }</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">while</span> (fabs(new_f) < fabs(f));</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span> </div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  s = 1.0 / sqrt(1.0 + ct * ct);</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  c = ct * s;</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> </div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keywordflow">if</span> (z < 0.0)</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  {</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  s = -s;</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  lat = -atan(1.0 / ct);</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  } <span class="keywordflow">else</span></div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  {</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  lat = atan(1.0 / ct);</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  }</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  }</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  lon = atan2(y, x);</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span> </div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  ht = rho*c + z*s - equatorial_radius*sqrt(1.0 - eccentricity_squared*s*s);</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span> </div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span> }</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span> </div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span> </div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <span class="comment">// CLASSIFICATION: UNCLASSIFIED</span></div>
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