Main Lemma Repository
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  1. /* This file is part of Lemma, a geophysical modelling and inversion API.
  2. * More information is available at http://lemmasoftware.org
  3. */
  4. /* This Source Code Form is subject to the terms of the Mozilla Public
  5. * License, v. 2.0. If a copy of the MPL was not distributed with this
  6. * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  7. */
  8. /**
  9. * @file
  10. * @date 02/11/2014 03:33:08 PM
  11. * @author Trevor Irons (ti)
  12. * @email Trevor.Irons@lemmasoftware.org
  13. * @copyright Copyright (c) 2014, Trevor Irons
  14. */
  15. #ifndef FHTKEY101_INC
  16. #define FHTKEY101_INC
  17. #include "HankelTransform.h"
  18. namespace Lemma {
  19. /**
  20. \brief Impliments the fast Hankel transform as outlines by Key 2011
  21. \details This filter uses 51, 101, or 201 filter points and supports both lagged and related
  22. kernel arguments. This algorithm is a port of code carrying the following copyright and
  23. restriction:
  24. %------------------------------------------------------------------%
  25. % Copyright (c) 2012 by the Society of Exploration Geophysicists. %
  26. % For more information, go to http://software.seg.org/2012/0003 . %
  27. % You must read and accept usage terms at: %
  28. % http://software.seg.org/disclaimer.txt before use. %
  29. %------------------------------------------------------------------%
  30. */
  31. class FHTKey101 : public HankelTransform {
  32. friend std::ostream &operator<<(std::ostream &stream, const FHTKey101 &ob);
  33. struct ctor_key {};
  34. public:
  35. // ==================== LIFECYCLE =======================
  36. /** Default protected constructor, use New */
  37. FHTKey101 ( const ctor_key& );
  38. /** DeSerializing locked constructor, use NewSP */
  39. FHTKey101 ( const YAML::Node& node, const ctor_key& );
  40. /** Default protected destructor, use Delete */
  41. ~FHTKey101 ();
  42. /**
  43. * @copybrief LemmaObject::New()
  44. * @copydetails LemmaObject::New()
  45. */
  46. static std::shared_ptr<FHTKey101> NewSP();
  47. /** YAML Serializing method
  48. */
  49. YAML::Node Serialize() const;
  50. /**
  51. * Constructs an object from a YAML::Node.
  52. */
  53. static std::shared_ptr< FHTKey101 > DeSerialize(const YAML::Node& node);
  54. // ==================== OPERATORS =======================
  55. // ==================== OPERATIONS =======================
  56. Complex Zgauss(const int &ikk, const EMMODE &imode,
  57. const int &itype, const Real &rho,
  58. const Real &wavef, KernelEM1DBase* Kernel);
  59. /// Computes related kernels, if applicable, otherwise this is
  60. /// just a dummy function.
  61. void ComputeRelated(const Real& rho, std::shared_ptr<KernelEM1DBase> Kernel);
  62. void ComputeRelated(const Real& rho, std::vector< std::shared_ptr<KernelEM1DBase> > KernelVec);
  63. void ComputeRelated(const Real& rho, std::shared_ptr<KernelEM1DManager> KernelManager);
  64. // ==================== ACCESS =======================
  65. // ==================== INQUIRY =======================
  66. virtual std::string GetName() const;
  67. protected:
  68. private:
  69. // ==================== DATA MEMBERS =========================
  70. // Shared Filter Weights
  71. static const Eigen::Matrix<Real, 101, 3> WT101;
  72. /// Holds answer, dimensions are NumConv, and NumberRelated.
  73. Eigen::Matrix<Complex, Eigen::Dynamic, Eigen::Dynamic> Zans;
  74. /** ASCII string representation of the class name */
  75. static constexpr auto CName = "FHTKey101";
  76. }; // ----- end of class FHTKey101 -----
  77. } // ----- end of Lemma name -----
  78. #endif // ----- #ifndef FHTKEY101_INC -----