Lemma is an Electromagnetics API
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DipoleSource.h 12KB

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  1. /* This file is part of Lemma, a geophysical modelling and inversion API */
  2. /* This Source Code Form is subject to the terms of the Mozilla Public
  3. * License, v. 2.0. If a copy of the MPL was not distributed with this
  4. * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  5. /**
  6. @file
  7. @author Trevor Irons
  8. @date 12/02/2009
  9. **/
  10. #ifndef __DIPOLESOURCE_H
  11. #define __DIPOLESOURCE_H
  12. #include "LemmaObject.h"
  13. #include "LayeredEarthEM.h"
  14. #ifdef LEMMAUSEVTK
  15. #include "vtkActor.h"
  16. #include "vtkLineSource.h"
  17. #include "vtkSphereSource.h"
  18. #include "vtkPolyDataMapper.h"
  19. #include "vtkTubeFilter.h"
  20. #include "vtkRegularPolygonSource.h"
  21. #include "vtkProperty.h"
  22. #endif
  23. namespace Lemma {
  24. // Forward declarations
  25. class KernelEM1DManager;
  26. class FieldPoints;
  27. class HankelTransform;
  28. // ==========================================================================
  29. // Class: DipoleSource
  30. /// \ingroup FDEM1D
  31. /// \brief Dipole sources form the backbone of Lemma.
  32. /// \details More complex sources are constructed from a superposition of
  33. /// dipoles.
  34. // ==========================================================================
  35. class DipoleSource : public std::enable_shared_from_this<DipoleSource>, LemmaObject {
  36. // ==================== FRIENDS ======================
  37. friend std::ostream &operator<<(std::ostream &stream, const DipoleSource &ob);
  38. friend class EMEarth1D;
  39. public:
  40. //bool operator==(DipoleSource& rhs)const;
  41. // ==================== LIFECYCLE ======================
  42. /** Default locked constructor. */
  43. explicit DipoleSource ( const ctor_key& );
  44. /** Locked deserializing constructor */
  45. DipoleSource ( const YAML::Node& node, const ctor_key& );
  46. /** Default locked constructor. */
  47. ~DipoleSource ();
  48. /**
  49. * Returns shared_ptr to new DipoleSource. Location is
  50. * initialized to (0,0,0) type and polarization are
  51. * initialized to nonworking values that will throw
  52. * exceptions if used.
  53. */
  54. static std::shared_ptr< DipoleSource > NewSP();
  55. /**
  56. * YAML Serializing method
  57. */
  58. YAML::Node Serialize() const;
  59. /**
  60. * Constructs an object from a YAML::Node.
  61. */
  62. static std::shared_ptr< DipoleSource > DeSerialize(const YAML::Node& node);
  63. /** Returns a deep copy of the dipole. Used to make thread safe methods. Does not
  64. copy attachments.
  65. */
  66. std::shared_ptr< DipoleSource > Clone();
  67. // ==================== OPERATORS ======================
  68. // ==================== ACCESS ======================
  69. /** Sets the position.
  70. * @param [in] posin
  71. */
  72. void SetLocation(const Vector3r &posin);
  73. /** Sets the location using three Real coordinate arguments.
  74. * @param[in] xp is the x coordinate of the dipole
  75. * @param[in] yp is the y coordinate of the dipole
  76. * @param[in] zp is the z coordinate of the dipole
  77. */
  78. void SetLocation(const Real &xp, const Real &yp, const Real &zp);
  79. /** Sets the dipole direction (polarisation). This method
  80. * replaced SetPolarisation(DipoleSourcePolarisation) and allows for general dipole
  81. * directionality.
  82. * @param[in] dir is the direction of the dipole. This will be normalised.
  83. */
  84. void SetPolarisation(const Vector3r &dir);
  85. /** Sets the polarisation of the dipole. Conveneince method that calls
  86. * SetPolarisation(const Vector3r &dir), constructing the normalized Vector | <x, y, z> |
  87. */
  88. void SetPolarisation(const Real& x, const Real& y, const Real& z );
  89. /// Sets the dipole polarisation
  90. /// @param[in] pol is the enumerated polarisation
  91. void SetPolarisation(const DipoleSourcePolarisation &pol);
  92. /// Sets the dipole source type
  93. /// @param[in] stype is one of the enerated values taking either
  94. /// ELECTRICDIPOLE or MAGNETICDIPOLE
  95. void SetType(const DIPOLESOURCETYPE &stype);
  96. /// Sets the dipole moment
  97. void SetMoment(const Real &moment);
  98. /// Sets the dipole phse
  99. void SetPhase(const Real &phase);
  100. /// Sets the polarity
  101. void SetPolarity(const DipoleSourcePolarity& pol);
  102. /// Sets number of frequencies
  103. void SetNumberOfFrequencies(const int &nfreq);
  104. /// Sets a specific frequency.
  105. /// @param[in] ifreq is the frequency bin number
  106. /// @param[in] freq is the frequency to set, in Hz
  107. void SetFrequency(const int &ifreq, const Real &freq);
  108. /// Sets the frequencies of the dipole.
  109. /// @param[in] freqs is a vector of the frequencies. Also sets
  110. /// number of frequencies
  111. void SetFrequencies(const VectorXr& freqs);
  112. // ==================== INQUIRY ======================
  113. /** Accessor to polarisation vector.
  114. @return returns the unit polarisation vector.
  115. */
  116. Vector3r GetPolarisation();
  117. /// Returns Vector3r position of the dipole
  118. Vector3r GetLocation();
  119. /// Returns a specific coordinate of the dipole
  120. /// @param coordinate 0=x, 1=y, 2=z
  121. Real GetLocation(const int &coordinate);
  122. /// Returns enumerated of DIPOLESOURCETYPE
  123. DIPOLESOURCETYPE GetDipoleSourceType();
  124. /// Returns the dipole type
  125. DIPOLESOURCETYPE GetType();
  126. /// Returns pointer to KernelEM1DManager
  127. std::shared_ptr<KernelEM1DManager> GetKernelManager();
  128. // Returns enumerated DipoleSourcePolarization
  129. //DipoleSourcePolarisation GetDipoleSourcePolarisation();
  130. /// Returns the dipole moment
  131. Real GetMoment();
  132. /// Returns the angular frequency of the dipole
  133. Real GetAngularFrequency(const int &ifreq);
  134. /// Returns the frequency of the dipole (Hz)
  135. Real GetFrequency(const int &ifreq);
  136. /// Returns the frequency of the dipole (Hz)
  137. VectorXr GetFrequencies( );
  138. /// Returns the phase offset of the dipole
  139. Real GetPhase();
  140. /// Returns the number of frequencies
  141. int GetNumberOfFrequencies();
  142. #ifdef LEMMAUSEVTK
  143. /// Returns an actor that can be placed into a vtk scene easily
  144. /// Note that this function throws a pointer, it is the receivers
  145. /// job to manage this memory!
  146. vtkActor* GetVtkActor();
  147. #endif
  148. /** Returns the name of the underlying class, similiar to Python's type */
  149. virtual std::string GetName() const ;
  150. protected:
  151. // ==================== OPERATIONS ======================
  152. /** Determines if kernels have been loaded already, and if so if they can be reused
  153. */
  154. void SetKernels(const int& ifreq, const FIELDCALCULATIONS& Fields, std::shared_ptr<FieldPoints> Receivers, const int& irec,
  155. std::shared_ptr<LayeredEarthEM> Earth );
  156. /** resets the kernels if they cannot be reused */
  157. virtual void ReSetKernels(const int& ifreq, const FIELDCALCULATIONS& Fields, std::shared_ptr<FieldPoints> Receivers,
  158. const int& irec, std::shared_ptr<LayeredEarthEM> Earth );
  159. /** Updates the receiver fields */
  160. virtual void UpdateFields(const int& ifreq, HankelTransform* Hankel, const Real& wavef);
  161. private:
  162. // ==================== DATA MEMBERS ======================
  163. /// Defines the type of source (magnetic or electric)
  164. DIPOLESOURCETYPE Type;
  165. // Polarization of the dipole, (x, y or z)
  166. //DipoleSourcePolarisation Polarisation;
  167. // Dipole polarity
  168. //DipoleSourcePolarity Polarity;
  169. /// Which receiver index should Kernels be configured for
  170. int irec;
  171. int lays;
  172. int layr;
  173. /// Phase offset of the dipole, referenced from 0
  174. Real Phase;
  175. /// Dipole Moment
  176. Real Moment;
  177. Real xxp;
  178. Real yyp;
  179. Real rho;
  180. Real sp;
  181. Real cp;
  182. Real scp;
  183. Real sps;
  184. Real cps;
  185. Real c2p;
  186. Real kernelFreq;
  187. FIELDCALCULATIONS FieldsToCalculate = BOTH;
  188. VectorXcr f;
  189. VectorXi ik;
  190. /// Central location of the dipole
  191. Vector3r Location;
  192. /// Unit vector defining directionality of the dipole
  193. Vector3r Phat;
  194. /// Freqencies of the source, in Hz
  195. VectorXr Freqs;
  196. /// Storage of the EM1D kernels used by this dipole
  197. std::shared_ptr<KernelEM1DManager> KernelManager;
  198. /// Receiver points, keep track if these have changed
  199. std::shared_ptr<FieldPoints> Receivers;
  200. /// Layered Earth used by Kernels
  201. std::shared_ptr<LayeredEarthEM> Earth;
  202. /** ASCII string representation of the class name */
  203. static constexpr auto CName = "DipoleSource";
  204. }; // ----- end of class DipoleSource -----
  205. /** If no dipole source has been specified, throw this error.
  206. */
  207. class NullDipoleSource : public std::runtime_error {
  208. public:
  209. /** Thrown when a DipoleSource pointer is NULL
  210. */
  211. NullDipoleSource ( );
  212. };
  213. /** Error class for assignment of a dipole source that did not connect properly.
  214. */
  215. class NonValidDipoleTypeAssignment : public std::runtime_error {
  216. public:
  217. NonValidDipoleTypeAssignment( );
  218. };
  219. /** Error class for a non-valid dipole type. Generally thrown if this was not
  220. * set properly.
  221. */
  222. class NonValidDipoleType : public std::runtime_error {
  223. public:
  224. /** Throws error. This is a deprecated function. Call the method with
  225. * the pointer address instead.
  226. */
  227. NonValidDipoleType( );
  228. /** Throws error with information on the class throwing the error.
  229. */
  230. NonValidDipoleType( LemmaObject *ptr );
  231. };
  232. /** Error class for non valid dipole polarisation
  233. */
  234. class NonValidDipolePolarisation : public std::runtime_error {
  235. public:
  236. NonValidDipolePolarisation( );
  237. };
  238. /** Error class for non valid dipole polarity
  239. */
  240. class NonValidDipolePolarity : public std::runtime_error {
  241. public:
  242. NonValidDipolePolarity( );
  243. };
  244. /** Error class for non valid dipole polarisation
  245. */
  246. class NonValidDipolePolarisationAssignment : public std::runtime_error {
  247. public:
  248. NonValidDipolePolarisationAssignment( );
  249. };
  250. /** Error class for non valid location coordinate.
  251. */
  252. class NonValidLocationCoordinate : public std::runtime_error {
  253. public:
  254. NonValidLocationCoordinate( );
  255. };
  256. }
  257. #endif // __DIPOLESOURCE_H